Drop the silly notion that i386 has two bootstrap files now that sys/boot
creates a single file named just "boot". Apart from the fact that the option "-s" is now gone and that "-b" should be pointed at /boot/boot instead of /boot/boot1, this patch should be a no-op.
This commit is contained in:
Poul-Henning Kamp
parent
5d9aef3d8d
commit
8d48318bbb
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=109889
@ -65,8 +65,7 @@
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.Nm
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.Fl B
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.Oo
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.Fl b Ar boot1
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.Fl s Ar boot2
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.Fl b Ar boot
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.Oc
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.Ar disk
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.Oo Ar disktype/auto Oc
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@ -75,8 +74,7 @@
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.Fl B
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.Op Fl n
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.Oo
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.Fl b Ar boot1
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.Fl s Ar boot2
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.Fl b Ar boot
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.Oc
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.Ar disk Ar disktype/auto
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.Oo Ar packid Oc
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@ -85,8 +83,7 @@
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.Fl B
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.Op Fl n
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.Oo
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.Fl b Ar boot1
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.Fl s Ar boot2
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.Fl b Ar boot
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.Oc
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.Ar disk Ar protofile
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.Oo Ar disktype/auto Oc
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@ -330,8 +327,7 @@ bootblocks in the slice.
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.Nm
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.Fl B
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.Oo
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.Fl b Ar boot1
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.Fl s Ar boot2
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.Fl b Ar boot
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.Oc
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.Ar disk
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.Oo Ar disktype Oc
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@ -349,8 +345,7 @@ This command is typically run on a slice such as
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.Fl B
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.Op Fl n
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.Oo
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.Fl b Ar boot1
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.Fl s Ar boot2
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.Fl b Ar boot
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.Oc
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.Ar disk Ar disktype
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.Oo Ar packid Oc
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@ -372,8 +367,7 @@ disklabel that would have been written will be printed to stdout.
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.Fl B
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.Op Fl n
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.Oo
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.Fl b Ar boot1
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.Fl s Ar boot2
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.Fl b Ar boot
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.Oc
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.Ar disk Ar protofile
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.Oo Ar disktype Oc
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@ -423,12 +417,8 @@ parameters of the
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.Xr disktab 5
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entry for the disk if the disktab entry exists and includes those parameters.
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.It
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Otherwise, the default boot image names are used:
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.Pa /boot/boot1
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and
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.Pa /boot/boot2
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for the standard stage1 and stage2 boot images (details may vary
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on architectures like the Alpha, where only a single-stage boot is used).
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Otherwise, the default boot image name are used:
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.Pa /boot/boot .
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.El
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.Ss Initializing/Formatting a bootable disk from scratch
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.Pp
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@ -743,21 +733,17 @@ partition sizes.
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Install a new bootstrap on
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.Pa da0s1 .
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The boot code comes from
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.Pa /boot/boot1
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and possibly
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.Pa /boot/boot2 .
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.Pa /boot/boot .
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On-disk and in-core labels are unchanged.
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.Pp
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.Dl disklabel -w -B /dev/da0s1 -b newboot1 -s newboot2 da2212
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.Dl disklabel -w -B /dev/da0s1 -b newboot da2212
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.Pp
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Install a new label and bootstrap.
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The label is derived from disktab information for
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.Dq da2212
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and installed both in-core and on-disk.
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The bootstrap code comes from the files
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.Pa /boot/newboot1
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and
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.Pa /boot/newboot2 .
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.Pa /boot/newboot
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.Pp
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.Dl dd if=/dev/zero of=/dev/da0 bs=512 count=32
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.Dl fdisk -BI da0
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@ -105,9 +105,7 @@ __FBSDID("$FreeBSD$");
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#define BIG_NEWFS_CPG 64U
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#if defined(__i386__)
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#define NUMBOOT 2
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#elif defined(__alpha__)
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#define NUMBOOT 1
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#else
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#error I do not know about this architecture, and shall probably not be compiled for it.
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#endif
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@ -125,7 +123,6 @@ char *word(char *);
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int getasciilabel(FILE *, struct disklabel *);
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int getasciipartspec(char *, struct disklabel *, int, int);
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int checklabel(struct disklabel *);
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void setbootflag(struct disklabel *);
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void Warning(const char *, ...) __printflike(1, 2);
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void usage(void);
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struct disklabel *getvirginlabel(void);
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@ -150,12 +147,8 @@ char part_offset_type[MAX_NUM_PARTS];
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int part_set[MAX_NUM_PARTS];
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int installboot; /* non-zero if we should install a boot program */
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char *bootbuf; /* pointer to buffer with remainder of boot prog */
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int bootsize; /* size of remaining boot program */
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char *xxboot; /* primary boot */
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char *bootxx; /* secondary boot */
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char boot0[MAXPATHLEN];
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char boot1[MAXPATHLEN];
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enum {
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UNSPEC, EDIT, READ, RESTORE, WRITE, WRITEBOOT
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@ -182,11 +175,6 @@ main(int argc, char *argv[])
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case 'b':
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xxboot = optarg;
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break;
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#if NUMBOOT > 1
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case 's':
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bootxx = optarg;
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break;
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#endif
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case 'n':
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disable_write = 1;
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break;
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@ -221,7 +209,7 @@ main(int argc, char *argv[])
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} else {
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if (op == UNSPEC)
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op = READ;
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xxboot = bootxx = 0;
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xxboot = 0;
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}
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if (argc < 1)
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usage();
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@ -354,7 +342,6 @@ writelabel(int f, const char *boot, struct disklabel *lp)
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return (0);
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}
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setbootflag(lp);
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lp->d_magic = DISKMAGIC;
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lp->d_magic2 = DISKMAGIC;
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lp->d_checksum = 0;
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@ -394,13 +381,6 @@ writelabel(int f, const char *boot, struct disklabel *lp)
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warn("write");
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return (1);
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}
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/*
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* Output the remainder of the disklabel
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*/
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if (bootbuf && write(f, bootbuf, bootsize) != bootsize) {
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warn("write");
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return(1);
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}
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return (0);
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}
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@ -483,7 +463,7 @@ makebootarea(char *boot, struct disklabel *dp, int f)
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#endif
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#ifdef __i386__
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char *tmpbuf;
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int i, found;
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int i, found, dps;
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#endif
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/* XXX */
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@ -511,7 +491,7 @@ makebootarea(char *boot, struct disklabel *dp, int f)
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* We are installing a boot program. Determine the name(s) and
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* read them into the appropriate places in the boot area.
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*/
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if (!xxboot || !bootxx) {
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if (!xxboot) {
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dkbasename = np;
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if ((p = rindex(dkname, '/')) == NULL)
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p = dkname;
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@ -522,36 +502,22 @@ makebootarea(char *boot, struct disklabel *dp, int f)
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*np++ = '\0';
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if (!xxboot) {
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(void)sprintf(boot0, "%s/boot1", _PATH_BOOTDIR);
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(void)sprintf(boot0, "%s/boot", _PATH_BOOTDIR);
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xxboot = boot0;
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}
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#if NUMBOOT > 1
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if (!bootxx) {
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(void)sprintf(boot1, "%s/boot2", _PATH_BOOTDIR);
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bootxx = boot1;
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}
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#endif
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}
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/*
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* Strange rules:
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* 1. One-piece bootstrap (hp300/hp800)
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* 1. One-piece bootstrap (alpha)
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* up to d_bbsize bytes of ``xxboot'' go in bootarea, the rest
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* is remembered and written later following the bootarea.
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* 2. Two-piece bootstraps (i386)
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* up to d_secsize bytes of ``xxboot'' go in first d_secsize
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* bytes of bootarea, remaining d_bbsize-d_secsize filled
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* from ``bootxx''.
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*/
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b = open(xxboot, O_RDONLY);
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if (b < 0)
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err(4, "%s", xxboot);
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#if NUMBOOT > 1
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if (fstat(b, &sb) != 0)
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err(4, "%s", xxboot);
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#ifdef __i386__
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if (sb.st_size > BBSIZE)
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errx(4, "%s too large", xxboot);
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/*
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* XXX Botch alert.
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* The i386 has the so-called fdisk table embedded into the
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* The i386/PC98 has the so-called fdisk table embedded into the
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* primary bootstrap. We take care to not clobber it, but
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* only if it does already contain some data. (Otherwise,
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* the xxboot provides a template.)
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@ -559,75 +525,45 @@ makebootarea(char *boot, struct disklabel *dp, int f)
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if ((tmpbuf = (char *)malloc((int)dp->d_secsize)) == 0)
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err(4, "%s", xxboot);
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memcpy((void *)tmpbuf, (void *)boot, (int)dp->d_secsize);
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#endif /* __i386__ */
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if (read(b, boot, (int)dp->d_secsize) < 0)
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if (read(b, boot, BBSIZE) < 0)
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err(4, "%s", xxboot);
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(void)close(b);
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/* XXX: rely on some very precise overlaps in definitions */
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#ifdef PC98
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dps = sizeof(struct pc98_partition);
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#else
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dps = sizeof(struct dos_partition);
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#endif
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for (i = DOSPARTOFF, found = 0;
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!found && i < (int)(DOSPARTOFF + NDOSPART * sizeof(struct pc98_partition));
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!found && i < (int)(DOSPARTOFF + NDOSPART * dps);
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i++)
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found = tmpbuf[i] != 0;
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if (found)
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memcpy((void *)&boot[DOSPARTOFF],
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(void *)&tmpbuf[DOSPARTOFF],
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NDOSPART * sizeof(struct pc98_partition));
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free(tmpbuf);
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#elif defined(__i386__)
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for (i = DOSPARTOFF, found = 0;
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!found && i < (int)(DOSPARTOFF + NDOSPART*sizeof(struct dos_partition));
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i++)
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found = tmpbuf[i] != 0;
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if (found)
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memcpy((void *)&boot[DOSPARTOFF],
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(void *)&tmpbuf[DOSPARTOFF],
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NDOSPART * sizeof(struct dos_partition));
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NDOSPART * dps);
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free(tmpbuf);
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#endif /* __i386__ */
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b = open(bootxx, O_RDONLY);
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if (b < 0)
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err(4, "%s", bootxx);
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if (fstat(b, &sb) != 0)
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err(4, "%s", bootxx);
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if (dp->d_secsize + sb.st_size > dp->d_bbsize)
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errx(4, "%s too large", bootxx);
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if (read(b, &boot[dp->d_secsize],
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(int)(dp->d_bbsize-dp->d_secsize)) < 0)
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err(4, "%s", bootxx);
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#else /* !(NUMBOOT > 1) */
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#ifdef __alpha__
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if (sb.st_size > BBSIZE - dp->d_secsize)
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errx(4, "%s too large", xxboot);
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/*
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* On the alpha, the primary bootstrap starts at the
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* second sector of the boot area. The first sector
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* contains the label and must be edited to contain the
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* size and location of the primary bootstrap.
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*/
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n = read(b, boot + dp->d_secsize, (int)dp->d_bbsize);
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n = read(b, boot + dp->d_secsize, BBSIZE - dp->d_secsize);
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if (n < 0)
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err(4, "%s", xxboot);
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bootinfo = (u_long *)(boot + 480);
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bootinfo[0] = (n + dp->d_secsize - 1) / dp->d_secsize;
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bootinfo[1] = 1; /* start at sector 1 */
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bootinfo[2] = 0; /* flags (must be zero) */
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#else /* !__alpha__ */
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if (read(b, boot, (int)dp->d_bbsize) < 0)
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err(4, "%s", xxboot);
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#endif /* __alpha__ */
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if (fstat(b, &sb) != 0)
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err(4, "%s", xxboot);
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bootsize = (int)sb.st_size - dp->d_bbsize;
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if (bootsize > 0) {
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/* XXX assume d_secsize is a power of two */
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bootsize = (bootsize + dp->d_secsize-1) & ~(dp->d_secsize-1);
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bootbuf = (char *)malloc((size_t)bootsize);
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if (bootbuf == 0)
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err(4, "%s", xxboot);
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if (read(b, bootbuf, bootsize) < 0) {
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free(bootbuf);
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err(4, "%s", xxboot);
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}
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}
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#endif /* NUMBOOT > 1 */
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(void)close(b);
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/*
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* Make sure no part of the bootstrap is written in the area
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@ -1549,47 +1485,6 @@ getvirginlabel(void)
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return (&loclab);
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}
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/*
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* If we are installing a boot program that doesn't fit in d_bbsize
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* we need to mark those partitions that the boot overflows into.
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* This allows newfs to prevent creation of a file system where it might
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* clobber bootstrap code.
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*/
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void
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setbootflag(struct disklabel *lp)
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{
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struct partition *pp;
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int i, errors = 0;
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char part;
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u_long boffset;
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if (bootbuf == 0)
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return;
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boffset = bootsize / lp->d_secsize;
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for (i = 0; i < lp->d_npartitions; i++) {
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part = 'a' + i;
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pp = &lp->d_partitions[i];
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if (pp->p_size == 0)
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continue;
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if (boffset <= pp->p_offset) {
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if (pp->p_fstype == FS_BOOT)
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pp->p_fstype = FS_UNUSED;
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} else if (pp->p_fstype != FS_BOOT) {
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if (pp->p_fstype != FS_UNUSED) {
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fprintf(stderr,
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"boot overlaps used partition %c\n",
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part);
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errors++;
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} else {
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pp->p_fstype = FS_BOOT;
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Warning("boot overlaps partition %c, %s",
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part, "marked as FS_BOOT");
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}
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}
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}
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if (errors)
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errx(4, "cannot install boot program");
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}
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/*VARARGS1*/
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void
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@ -1616,21 +1511,12 @@ usage(void)
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"\t\t(to edit label)",
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" disklabel -R [-r] [-n] disk protofile",
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"\t\t(to restore label with existing boot program)",
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#if NUMBOOT > 1
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" disklabel -B [-n] [ -b boot1 [ -s boot2 ] ] disk [ type ]",
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"\t\t(to install boot program with existing label)",
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" disklabel -w -B [-n] [ -b boot1 [ -s boot2 ] ] disk type [ packid ]",
|
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"\t\t(to write label and boot program)",
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" disklabel -R -B [-n] [ -b boot1 [ -s boot2 ] ] disk protofile [ type ]",
|
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"\t\t(to restore label and boot program)"
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#else
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" disklabel -B [-n] [ -b bootprog ] disk [ type ]",
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"\t\t(to install boot program with existing on-disk label)",
|
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" disklabel -w -B [-n] [ -b bootprog ] disk type [ packid ]",
|
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"\t\t(to write label and install boot program)",
|
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" disklabel -R -B [-n] [ -b bootprog ] disk protofile [ type ]",
|
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"\t\t(to restore label and install boot program)"
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#endif
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);
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exit(1);
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}
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@ -65,8 +65,7 @@
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.Nm
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.Fl B
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.Oo
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.Fl b Ar boot1
|
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.Fl s Ar boot2
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.Fl b Ar boot
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.Oc
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.Ar disk
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.Oo Ar disktype/auto Oc
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@ -75,8 +74,7 @@
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.Fl B
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||||
.Op Fl n
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.Oo
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.Fl b Ar boot1
|
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.Fl s Ar boot2
|
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.Fl b Ar boot
|
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.Oc
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.Ar disk Ar disktype/auto
|
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.Oo Ar packid Oc
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@ -85,8 +83,7 @@
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.Fl B
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.Op Fl n
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.Oo
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.Fl b Ar boot1
|
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.Fl s Ar boot2
|
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.Fl b Ar boot
|
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.Oc
|
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.Ar disk Ar protofile
|
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.Oo Ar disktype/auto Oc
|
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@ -330,8 +327,7 @@ bootblocks in the slice.
|
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.Nm
|
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.Fl B
|
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.Oo
|
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.Fl b Ar boot1
|
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.Fl s Ar boot2
|
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.Fl b Ar boot
|
||||
.Oc
|
||||
.Ar disk
|
||||
.Oo Ar disktype Oc
|
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@ -349,8 +345,7 @@ This command is typically run on a slice such as
|
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.Fl B
|
||||
.Op Fl n
|
||||
.Oo
|
||||
.Fl b Ar boot1
|
||||
.Fl s Ar boot2
|
||||
.Fl b Ar boot
|
||||
.Oc
|
||||
.Ar disk Ar disktype
|
||||
.Oo Ar packid Oc
|
||||
@ -372,8 +367,7 @@ disklabel that would have been written will be printed to stdout.
|
||||
.Fl B
|
||||
.Op Fl n
|
||||
.Oo
|
||||
.Fl b Ar boot1
|
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.Fl s Ar boot2
|
||||
.Fl b Ar boot
|
||||
.Oc
|
||||
.Ar disk Ar protofile
|
||||
.Oo Ar disktype Oc
|
||||
@ -423,12 +417,8 @@ parameters of the
|
||||
.Xr disktab 5
|
||||
entry for the disk if the disktab entry exists and includes those parameters.
|
||||
.It
|
||||
Otherwise, the default boot image names are used:
|
||||
.Pa /boot/boot1
|
||||
and
|
||||
.Pa /boot/boot2
|
||||
for the standard stage1 and stage2 boot images (details may vary
|
||||
on architectures like the Alpha, where only a single-stage boot is used).
|
||||
Otherwise, the default boot image name are used:
|
||||
.Pa /boot/boot .
|
||||
.El
|
||||
.Ss Initializing/Formatting a bootable disk from scratch
|
||||
.Pp
|
||||
@ -743,21 +733,17 @@ partition sizes.
|
||||
Install a new bootstrap on
|
||||
.Pa da0s1 .
|
||||
The boot code comes from
|
||||
.Pa /boot/boot1
|
||||
and possibly
|
||||
.Pa /boot/boot2 .
|
||||
.Pa /boot/boot .
|
||||
On-disk and in-core labels are unchanged.
|
||||
.Pp
|
||||
.Dl disklabel -w -B /dev/da0s1 -b newboot1 -s newboot2 da2212
|
||||
.Dl disklabel -w -B /dev/da0s1 -b newboot da2212
|
||||
.Pp
|
||||
Install a new label and bootstrap.
|
||||
The label is derived from disktab information for
|
||||
.Dq da2212
|
||||
and installed both in-core and on-disk.
|
||||
The bootstrap code comes from the files
|
||||
.Pa /boot/newboot1
|
||||
and
|
||||
.Pa /boot/newboot2 .
|
||||
.Pa /boot/newboot
|
||||
.Pp
|
||||
.Dl dd if=/dev/zero of=/dev/da0 bs=512 count=32
|
||||
.Dl fdisk -BI da0
|
||||
|
||||
@ -105,9 +105,7 @@ __FBSDID("$FreeBSD$");
|
||||
#define BIG_NEWFS_CPG 64U
|
||||
|
||||
#if defined(__i386__)
|
||||
#define NUMBOOT 2
|
||||
#elif defined(__alpha__)
|
||||
#define NUMBOOT 1
|
||||
#else
|
||||
#error I do not know about this architecture, and shall probably not be compiled for it.
|
||||
#endif
|
||||
@ -125,7 +123,6 @@ char *word(char *);
|
||||
int getasciilabel(FILE *, struct disklabel *);
|
||||
int getasciipartspec(char *, struct disklabel *, int, int);
|
||||
int checklabel(struct disklabel *);
|
||||
void setbootflag(struct disklabel *);
|
||||
void Warning(const char *, ...) __printflike(1, 2);
|
||||
void usage(void);
|
||||
struct disklabel *getvirginlabel(void);
|
||||
@ -150,12 +147,8 @@ char part_offset_type[MAX_NUM_PARTS];
|
||||
int part_set[MAX_NUM_PARTS];
|
||||
|
||||
int installboot; /* non-zero if we should install a boot program */
|
||||
char *bootbuf; /* pointer to buffer with remainder of boot prog */
|
||||
int bootsize; /* size of remaining boot program */
|
||||
char *xxboot; /* primary boot */
|
||||
char *bootxx; /* secondary boot */
|
||||
char boot0[MAXPATHLEN];
|
||||
char boot1[MAXPATHLEN];
|
||||
|
||||
enum {
|
||||
UNSPEC, EDIT, READ, RESTORE, WRITE, WRITEBOOT
|
||||
@ -182,11 +175,6 @@ main(int argc, char *argv[])
|
||||
case 'b':
|
||||
xxboot = optarg;
|
||||
break;
|
||||
#if NUMBOOT > 1
|
||||
case 's':
|
||||
bootxx = optarg;
|
||||
break;
|
||||
#endif
|
||||
case 'n':
|
||||
disable_write = 1;
|
||||
break;
|
||||
@ -221,7 +209,7 @@ main(int argc, char *argv[])
|
||||
} else {
|
||||
if (op == UNSPEC)
|
||||
op = READ;
|
||||
xxboot = bootxx = 0;
|
||||
xxboot = 0;
|
||||
}
|
||||
if (argc < 1)
|
||||
usage();
|
||||
@ -354,7 +342,6 @@ writelabel(int f, const char *boot, struct disklabel *lp)
|
||||
return (0);
|
||||
}
|
||||
|
||||
setbootflag(lp);
|
||||
lp->d_magic = DISKMAGIC;
|
||||
lp->d_magic2 = DISKMAGIC;
|
||||
lp->d_checksum = 0;
|
||||
@ -394,13 +381,6 @@ writelabel(int f, const char *boot, struct disklabel *lp)
|
||||
warn("write");
|
||||
return (1);
|
||||
}
|
||||
/*
|
||||
* Output the remainder of the disklabel
|
||||
*/
|
||||
if (bootbuf && write(f, bootbuf, bootsize) != bootsize) {
|
||||
warn("write");
|
||||
return(1);
|
||||
}
|
||||
return (0);
|
||||
}
|
||||
|
||||
@ -483,7 +463,7 @@ makebootarea(char *boot, struct disklabel *dp, int f)
|
||||
#endif
|
||||
#ifdef __i386__
|
||||
char *tmpbuf;
|
||||
int i, found;
|
||||
int i, found, dps;
|
||||
#endif
|
||||
|
||||
/* XXX */
|
||||
@ -511,7 +491,7 @@ makebootarea(char *boot, struct disklabel *dp, int f)
|
||||
* We are installing a boot program. Determine the name(s) and
|
||||
* read them into the appropriate places in the boot area.
|
||||
*/
|
||||
if (!xxboot || !bootxx) {
|
||||
if (!xxboot) {
|
||||
dkbasename = np;
|
||||
if ((p = rindex(dkname, '/')) == NULL)
|
||||
p = dkname;
|
||||
@ -522,36 +502,22 @@ makebootarea(char *boot, struct disklabel *dp, int f)
|
||||
*np++ = '\0';
|
||||
|
||||
if (!xxboot) {
|
||||
(void)sprintf(boot0, "%s/boot1", _PATH_BOOTDIR);
|
||||
(void)sprintf(boot0, "%s/boot", _PATH_BOOTDIR);
|
||||
xxboot = boot0;
|
||||
}
|
||||
#if NUMBOOT > 1
|
||||
if (!bootxx) {
|
||||
(void)sprintf(boot1, "%s/boot2", _PATH_BOOTDIR);
|
||||
bootxx = boot1;
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
/*
|
||||
* Strange rules:
|
||||
* 1. One-piece bootstrap (hp300/hp800)
|
||||
* 1. One-piece bootstrap (alpha)
|
||||
* up to d_bbsize bytes of ``xxboot'' go in bootarea, the rest
|
||||
* is remembered and written later following the bootarea.
|
||||
* 2. Two-piece bootstraps (i386)
|
||||
* up to d_secsize bytes of ``xxboot'' go in first d_secsize
|
||||
* bytes of bootarea, remaining d_bbsize-d_secsize filled
|
||||
* from ``bootxx''.
|
||||
*/
|
||||
b = open(xxboot, O_RDONLY);
|
||||
if (b < 0)
|
||||
err(4, "%s", xxboot);
|
||||
#if NUMBOOT > 1
|
||||
if (fstat(b, &sb) != 0)
|
||||
err(4, "%s", xxboot);
|
||||
#ifdef __i386__
|
||||
if (sb.st_size > BBSIZE)
|
||||
errx(4, "%s too large", xxboot);
|
||||
/*
|
||||
* XXX Botch alert.
|
||||
* The i386 has the so-called fdisk table embedded into the
|
||||
* The i386/PC98 has the so-called fdisk table embedded into the
|
||||
* primary bootstrap. We take care to not clobber it, but
|
||||
* only if it does already contain some data. (Otherwise,
|
||||
* the xxboot provides a template.)
|
||||
@ -559,75 +525,45 @@ makebootarea(char *boot, struct disklabel *dp, int f)
|
||||
if ((tmpbuf = (char *)malloc((int)dp->d_secsize)) == 0)
|
||||
err(4, "%s", xxboot);
|
||||
memcpy((void *)tmpbuf, (void *)boot, (int)dp->d_secsize);
|
||||
#endif /* __i386__ */
|
||||
if (read(b, boot, (int)dp->d_secsize) < 0)
|
||||
|
||||
if (read(b, boot, BBSIZE) < 0)
|
||||
err(4, "%s", xxboot);
|
||||
(void)close(b);
|
||||
|
||||
/* XXX: rely on some very precise overlaps in definitions */
|
||||
#ifdef PC98
|
||||
dps = sizeof(struct pc98_partition);
|
||||
#else
|
||||
dps = sizeof(struct dos_partition);
|
||||
#endif
|
||||
for (i = DOSPARTOFF, found = 0;
|
||||
!found && i < (int)(DOSPARTOFF + NDOSPART * sizeof(struct pc98_partition));
|
||||
!found && i < (int)(DOSPARTOFF + NDOSPART * dps);
|
||||
i++)
|
||||
found = tmpbuf[i] != 0;
|
||||
if (found)
|
||||
memcpy((void *)&boot[DOSPARTOFF],
|
||||
(void *)&tmpbuf[DOSPARTOFF],
|
||||
NDOSPART * sizeof(struct pc98_partition));
|
||||
free(tmpbuf);
|
||||
#elif defined(__i386__)
|
||||
for (i = DOSPARTOFF, found = 0;
|
||||
!found && i < (int)(DOSPARTOFF + NDOSPART*sizeof(struct dos_partition));
|
||||
i++)
|
||||
found = tmpbuf[i] != 0;
|
||||
if (found)
|
||||
memcpy((void *)&boot[DOSPARTOFF],
|
||||
(void *)&tmpbuf[DOSPARTOFF],
|
||||
NDOSPART * sizeof(struct dos_partition));
|
||||
NDOSPART * dps);
|
||||
free(tmpbuf);
|
||||
#endif /* __i386__ */
|
||||
b = open(bootxx, O_RDONLY);
|
||||
if (b < 0)
|
||||
err(4, "%s", bootxx);
|
||||
if (fstat(b, &sb) != 0)
|
||||
err(4, "%s", bootxx);
|
||||
if (dp->d_secsize + sb.st_size > dp->d_bbsize)
|
||||
errx(4, "%s too large", bootxx);
|
||||
if (read(b, &boot[dp->d_secsize],
|
||||
(int)(dp->d_bbsize-dp->d_secsize)) < 0)
|
||||
err(4, "%s", bootxx);
|
||||
#else /* !(NUMBOOT > 1) */
|
||||
|
||||
#ifdef __alpha__
|
||||
if (sb.st_size > BBSIZE - dp->d_secsize)
|
||||
errx(4, "%s too large", xxboot);
|
||||
/*
|
||||
* On the alpha, the primary bootstrap starts at the
|
||||
* second sector of the boot area. The first sector
|
||||
* contains the label and must be edited to contain the
|
||||
* size and location of the primary bootstrap.
|
||||
*/
|
||||
n = read(b, boot + dp->d_secsize, (int)dp->d_bbsize);
|
||||
n = read(b, boot + dp->d_secsize, BBSIZE - dp->d_secsize);
|
||||
if (n < 0)
|
||||
err(4, "%s", xxboot);
|
||||
bootinfo = (u_long *)(boot + 480);
|
||||
bootinfo[0] = (n + dp->d_secsize - 1) / dp->d_secsize;
|
||||
bootinfo[1] = 1; /* start at sector 1 */
|
||||
bootinfo[2] = 0; /* flags (must be zero) */
|
||||
#else /* !__alpha__ */
|
||||
if (read(b, boot, (int)dp->d_bbsize) < 0)
|
||||
err(4, "%s", xxboot);
|
||||
#endif /* __alpha__ */
|
||||
if (fstat(b, &sb) != 0)
|
||||
err(4, "%s", xxboot);
|
||||
bootsize = (int)sb.st_size - dp->d_bbsize;
|
||||
if (bootsize > 0) {
|
||||
/* XXX assume d_secsize is a power of two */
|
||||
bootsize = (bootsize + dp->d_secsize-1) & ~(dp->d_secsize-1);
|
||||
bootbuf = (char *)malloc((size_t)bootsize);
|
||||
if (bootbuf == 0)
|
||||
err(4, "%s", xxboot);
|
||||
if (read(b, bootbuf, bootsize) < 0) {
|
||||
free(bootbuf);
|
||||
err(4, "%s", xxboot);
|
||||
}
|
||||
}
|
||||
#endif /* NUMBOOT > 1 */
|
||||
|
||||
(void)close(b);
|
||||
/*
|
||||
* Make sure no part of the bootstrap is written in the area
|
||||
@ -1549,47 +1485,6 @@ getvirginlabel(void)
|
||||
return (&loclab);
|
||||
}
|
||||
|
||||
/*
|
||||
* If we are installing a boot program that doesn't fit in d_bbsize
|
||||
* we need to mark those partitions that the boot overflows into.
|
||||
* This allows newfs to prevent creation of a file system where it might
|
||||
* clobber bootstrap code.
|
||||
*/
|
||||
void
|
||||
setbootflag(struct disklabel *lp)
|
||||
{
|
||||
struct partition *pp;
|
||||
int i, errors = 0;
|
||||
char part;
|
||||
u_long boffset;
|
||||
|
||||
if (bootbuf == 0)
|
||||
return;
|
||||
boffset = bootsize / lp->d_secsize;
|
||||
for (i = 0; i < lp->d_npartitions; i++) {
|
||||
part = 'a' + i;
|
||||
pp = &lp->d_partitions[i];
|
||||
if (pp->p_size == 0)
|
||||
continue;
|
||||
if (boffset <= pp->p_offset) {
|
||||
if (pp->p_fstype == FS_BOOT)
|
||||
pp->p_fstype = FS_UNUSED;
|
||||
} else if (pp->p_fstype != FS_BOOT) {
|
||||
if (pp->p_fstype != FS_UNUSED) {
|
||||
fprintf(stderr,
|
||||
"boot overlaps used partition %c\n",
|
||||
part);
|
||||
errors++;
|
||||
} else {
|
||||
pp->p_fstype = FS_BOOT;
|
||||
Warning("boot overlaps partition %c, %s",
|
||||
part, "marked as FS_BOOT");
|
||||
}
|
||||
}
|
||||
}
|
||||
if (errors)
|
||||
errx(4, "cannot install boot program");
|
||||
}
|
||||
|
||||
/*VARARGS1*/
|
||||
void
|
||||
@ -1616,21 +1511,12 @@ usage(void)
|
||||
"\t\t(to edit label)",
|
||||
" disklabel -R [-r] [-n] disk protofile",
|
||||
"\t\t(to restore label with existing boot program)",
|
||||
#if NUMBOOT > 1
|
||||
" disklabel -B [-n] [ -b boot1 [ -s boot2 ] ] disk [ type ]",
|
||||
"\t\t(to install boot program with existing label)",
|
||||
" disklabel -w -B [-n] [ -b boot1 [ -s boot2 ] ] disk type [ packid ]",
|
||||
"\t\t(to write label and boot program)",
|
||||
" disklabel -R -B [-n] [ -b boot1 [ -s boot2 ] ] disk protofile [ type ]",
|
||||
"\t\t(to restore label and boot program)"
|
||||
#else
|
||||
" disklabel -B [-n] [ -b bootprog ] disk [ type ]",
|
||||
"\t\t(to install boot program with existing on-disk label)",
|
||||
" disklabel -w -B [-n] [ -b bootprog ] disk type [ packid ]",
|
||||
"\t\t(to write label and install boot program)",
|
||||
" disklabel -R -B [-n] [ -b bootprog ] disk protofile [ type ]",
|
||||
"\t\t(to restore label and install boot program)"
|
||||
#endif
|
||||
);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user