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When installing boot blocks into an Alpha BSD label, setup the location,

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length, and flags fields at the end of the SRM boot sector so that SRM can
find the bootstrap code.  This fixes bsdlabel -m alpha to generate bootable
disklabels.

Reviewed by:	phk
This commit is contained in:
John Baldwin 2004-03-15 23:10:34 +00:00
parent 659dc72f99
commit c8785325a6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=127044
1 changed files with 10 additions and 0 deletions
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10
sbin/bsdlabel/bsdlabel.c
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@ -327,6 +327,7 @@ readboot(void)
{
int fd, i;
struct stat st;
uint64_t *p;
if (xxboot == NULL)
xxboot = "/boot/boot";
@ -338,6 +339,15 @@ readboot(void)
i = read(fd, bootarea + 512, st.st_size);
if (i != st.st_size)
err(1, "read error %s", xxboot);
/*
* Set the location and length so SRM can find the
* boot blocks.
*/
p = (uint64_t *)bootarea;
p[60] = (st.st_size + secsize - 1) / secsize;
p[61] = 1;
p[62] = 0;
return;
} else if ((!alphacksum) && st.st_size <= BBSIZE) {
i = read(fd, bootarea, st.st_size);