Commit Graph

50 Commits

Author SHA1 Message Date
Brian Feldman
16aae9cbc0 Split the logic of
static int setrootbyname(char *name);
out into
   dev_t getdiskbyname(char *name);

This makes it easy to create a new DDB command, which is the big reason
for the change.  You can now do the following in DDB:

Example rc.conf entry:
dumpdev="/dev/ad0s1b"   # Device name to crashdump to (if enabled).

db> show disk/ad0s1b
dev_t = 0xc0b7ea00
db> p *dumpdev
c0b7ea00
2000-03-20 16:28:35 +00:00
Mike Smith
bb328b87c1 Change the mountroot prompt to something that doesn't look at all like a
firmware prompt.  Several sleepy folk mistook the '>>>' for the SRM
prompt, which was never the desired idea.

Submitted by:	Andrew Gallatin <gallatin@cs.duke.edu>
Approved by:	jkh
2000-02-17 23:32:08 +00:00
Peter Wemm
cfdd238335 Put on asbestos suit and put a splcam() around the 'Mounting root from..'
message to stop it splitting.  Every single scsi machine I've seen seems
to reliably collide with this and it's rather annoying.
1999-12-12 16:34:43 +00:00
Poul-Henning Kamp
e8452d59e3 Scan cdevs for potential root devices, rather than bdevs. 1999-12-08 10:01:18 +00:00
Matthew Dillon
99e659dcfa Make BOOTP work again.
Submitted by:	Doug Ambrisko <ambrisko@whistle.com>
1999-11-29 18:51:04 +00:00
Mike Smith
c0da4cacd0 Use the correct mounted-from path when allocating the root mount, if we know
what it is.

Be more correct in unbusying the mountpoint (especially before freeing it).

Remove support for mounting 'r' devices as root.  You don't mount 'r'
devices anywhere else, and they're going away anyway.

Submitted by:	bde
1999-11-28 22:20:18 +00:00
Poul-Henning Kamp
71e4fff823 Retire MFS_ROOT and MFS_ROOT_SIZE options from the MFS implementation.
Add MD_ROOT and MD_ROOT_SIZE options to the md driver.

Make the md driver handle MFS_ROOT and MFS_ROOT_SIZE options for compatibility.

Add md driver to GENERIC, PCCARD and LINT.

This is a cleanup which removes the need for some of the worse hacks in
MFS:  We really want to have a rootvnode but MFS on a preloaded image
doesn't really have one.  md is a true device, so it is less trouble.

This has been tested with make release, and if people remember to add
the "md" pseudo-device to their kernels, PicoBSD should be just fine
as well.  If people have no other use for MFS, it can be removed from
the kernel.
1999-11-26 20:08:44 +00:00
Mike Smith
b3be35ee5e If vfs_mountroot_try() isn't given a path to try mounting, return a silent
error rather than complaining about it verbosely.  No path is not really
a failure, but the diagnostic was confusing and unuseful.
1999-11-21 08:05:50 +00:00
Poul-Henning Kamp
0429e37ade struct mountlist and struct mount.mnt_list have no business being
a CIRCLEQ.  Change them to TAILQ_HEAD and TAILQ_ENTRY respectively.

This removes ugly  mp != (void*)&mountlist  comparisons.

Requested by:   phk
Submitted by:   Jake Burkholder jake@checker.org
PR:             14967
1999-11-20 10:00:46 +00:00
Poul-Henning Kamp
325f13989b Ignore leading 'r' in base of root device name. 1999-11-08 11:44:51 +00:00
Mike Smith
91eef0b873 Clean up a couple of initialisations in order to suppress a correct
but un-useful warning.
1999-11-06 07:43:22 +00:00
Mike Smith
c161a8754f Guard against freeing NULL if vfs_mountroot_try is called with NULL
as an argument (this is legal to make other code simpler).
1999-11-05 19:28:07 +00:00
Mike Smith
7a0beaf12d Expand the sscanf buffer to 32 bytes to make room for the expanded
pattern, with some space left over to avoid this mistake next time it's
improved.

Submitted by:	luoqi
1999-11-05 02:45:50 +00:00
Mike Smith
586aaa0f6b Allow vfs names to include the digits 0-9 as well as the letters a-z.
This should let 'cd9660' filesystems be allowed.

Submitted by:	ghelmer
1999-11-04 17:48:11 +00:00
Mike Smith
90ebaea979 Re-implement the handing of RB_CDROM in a machine-independant fashion.
We currently only search SCSI and IDE CDROMs; if there's felt to be a
need for supporting the very old and rare soundcard etc. drives for this
application they can be trivially added.
1999-11-04 01:40:18 +00:00
Mike Smith
88d4183b84 Make MFS work with the new root filesystem search process.
In order to achieve this, root filesystem mount is moved from
SI_ORDER_FIRST to SI_ORDER_SECOND in the SI_SUB_MOUNT_ROOT sysinit
group.  Now, modules which wish to usurp the default root mount
can use SI_ORDER_FIRST.

A compiled-in or preloaded MFS filesystem will become the root
filesystem unless the vfs.root.mountfrom environment variable refers
to a valid bootable device.  This will normally only be the case when
the kernel and MFS image have been loaded from a disk which has a
valid /etc/fstab file.  In this case, the variable should be manually
overridden in the loader, or the kernel booted with -a.  In either
case "mfs:" should be supplied as the new value.

Also fix a typo in one DFLTROOT case that would not have compiled.
1999-11-03 11:02:47 +00:00
Mike Smith
ed9f9797bb This is a complete rewrite of vfs_conf.c, which changes the way the root
filesystem is discovered.  Preference is given to using the kernel
environment variable vfs.root.mountfrom, which is set by the loader
according to the contents of /etc/fstab.  Changes in the MD code
provide fallback mechanisms for systems not using the loader.

A more robust fallback path is also provided, with the last recourse
being to prompt on the console for a root device.

These changes drastically simplify the machine-dependant parts of
the root configuration process.  In addition, support for CDROM root
devices has been removed; it was a nasty hack and didn't work.
1999-11-01 23:51:00 +00:00
Matthew Dillon
e6f7111170 Fix BOOTP root FS mounts. Also cleanup vfs_getnewfsid() and collapse
addaliasu() into addalias() (no operational change) and clarify comments
    relating to a trick that vclean() uses.

    The fix to BOOTP is yet another hack.  Actually, rootfsid handling
    is already a major hack.  The whole thing needs to be cleaned up.

Reviewed by:	David Greenman <dg@root.com>, Alan Cox <alc@cs.rice.edu>
1999-09-19 06:24:21 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Peter Wemm
ca224f89a9 Fix warnings in last commit (dev_t is not an int, and not even int
compatable in arg lists on the Alpha)
1999-07-03 17:40:31 +00:00
Poul-Henning Kamp
ad6cb55952 Be more informative and try to ask the user in some instances if we can't
figure out the root device.
1999-07-03 08:24:00 +00:00
Peter Wemm
fec1aafc01 I'm tired of having a 'hanging root device'.. This isn't a "fix", just
a workaround for a specific case where cam interrupts right in the middle
of this printf.
1999-06-26 14:44:24 +00:00
John Birrell
350185153d Back out my previous change (phk didn't like it) in favour of setting
rootdev in the mfs initialisation code iff MFS_ROOT (which Bruce doesn't
like). Damned if I do - damned if I don't.
1999-05-24 00:37:26 +00:00
John Birrell
d47066829a Make MFS_ROOT work again. MFS_ROOT means that rootdev is not set.
Broken by: phk
Problem ignored by: phk
1999-05-23 10:51:33 +00:00
Søren Schmidt
d024c95599 Remove the SLICE code.
This clearly needs alot more thought, and we dont need this to hunt
us down in 3.0-RELEASE.
1998-09-14 19:56:42 +00:00
Bruce Evans
1afde994e9 Pass lists of possible root devices and their names up to the
machine-independent code and try mounting the devices in the
lists instead of guessing alternative root devices in a machine-
dependent way.

autoconf.c:
Reject preposterous slice numbers instead of silently converting
them to COMPATIBILITY_SLICE.

Don't forget to force slice = COMPATIBILITY_SLICE in the floppy
device name.

Eliminated most magic numbers and magic device names in setroot().

Fixed dozens of style bugs.

vfs_conf.c:
Put the actual root device name instead of "root_device" in the
mount struct if the actual name is available.  This is useful after
booting with -s.  If it were set in all cases then it could be used
to do mount(8)'s ROOTSLICE_HUNT and fsck(8)'s hotroot guess better.
1998-06-09 12:52:35 +00:00
Julian Elischer
c0bab11dfe Make the devfs SLICE option a standard type option.
(hopefully it will go away eventually anyhow)
1998-04-20 03:57:41 +00:00
Julian Elischer
3e425b968d Add changes and code to implement a functional DEVFS.
This code will be turned on with the TWO options
DEVFS and SLICE. (see LINT)
Two labels PRE_DEVFS_SLICE and POST_DEVFS_SLICE will deliniate these changes.

/dev will be automatically mounted by init (thanks phk)
on bootup. See /sys/dev/slice/slice.4 for more info.
All code should act the same without these options enabled.

Mike Smith, Poul Henning Kamp, Soeren, and a few dozen others

This code does not support the following:
bad144 handling.
Persistance. (My head is still hurting from the last time we discussed this)
ATAPI flopies are not handled by the SLICE code yet.

When this code is running, all major numbers are arbitrary and COULD
be dynamically assigned. (this is not done, for POLA only)
Minor numbers for disk slices ARE arbitray and dynamically assigned.
1998-04-19 23:32:49 +00:00
Mike Smith
617dd81f70 If the root mount fails from a device that is not the compatability slice
of a disk, because that slice does not exist, try again mounting from the
compatability slice.

This handles the case where a disk has been initialised by 'disklabel
auto', which places a bogus and invalid slice entry on the disk.
The bootstrap is not smart enough to reject this slice, and pretends to
boot from it.  Believing the the bootstrap at this point is unwise.

Booting from non-'wd' disks thus prepared is still broken, as
'disklabel -rwB xdN auto' does not initialise the disk type field, and
the bootstrap mistakenly claims that the disk is handled by 'wd'.

Behaviour is now consistent with DEVFS expected characteristics.
1998-03-11 00:10:31 +00:00
Eivind Eklund
303b270b0a Staticize. 1998-02-09 06:11:36 +00:00
Eivind Eklund
e4f4247a08 Make the BOOTP family new-style options (in opt_bootp.h) 1998-01-09 03:21:07 +00:00
Julian Elischer
1b0493988c Cleanup my last patch here
Reviewed by: sef@kthrup.com and phk@freebsd.org
1997-12-01 11:34:41 +00:00
Julian Elischer
95802bf803 Shift a few SYSINT() calls around.
this results in a few functions becoming static, and
the SYSINITs being close to the code they are related to.
setting up the dump device is with dumpsys() and
kicking off the scheduler is with the scheduler.
Mounting root is with the code that does it.

Reviewed by: phk
1997-11-25 07:07:48 +00:00
Poul-Henning Kamp
4a11ca4e29 Remove a bunch of variables which were unused both in GENERIC and LINT.
Found by:	-Wunused
1997-11-07 08:53:44 +00:00
Julian Elischer
4199ed4098 We are mounting the root.
mount it at the HEAD of the queue, DEVFS might already be there..
1997-10-16 07:32:14 +00:00
Poul-Henning Kamp
a1c995b626 Last major round (Unless Bruce thinks of somthing :-) of malloc changes.
Distribute all but the most fundamental malloc types.  This time I also
remembered the trick to making things static:  Put "static" in front of
them.

A couple of finer points by:	bde
1997-10-12 20:26:33 +00:00
Peter Wemm
6875d25465 Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.
1997-02-22 09:48:43 +00:00
John Dyson
996c772f58 This is the kernel Lite/2 commit. There are some requisite userland
changes, so don't expect to be able to run the kernel as-is (very well)
without the appropriate Lite/2 userland changes.

The system boots and can mount UFS filesystems.

Untested: ext2fs, msdosfs, NFS
Known problems: Incorrect Berkeley ID strings in some files.
		Mount_std mounts will not work until the getfsent
		library routine is changed.

Reviewed by:	various people
Submitted by:	Jeffery Hsu <hsu@freebsd.org>
1997-02-10 02:22:35 +00:00
Jordan K. Hubbard
1130b656e5 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
Bruce Evans
d841aaa740 Finished (?) cleaning up sysinit stuff. 1995-12-02 17:11:20 +00:00
Poul-Henning Kamp
a98ca4699e Second batch of cleanup changes.
This time mostly making a lot of things static and some unused
variables here and there.
1995-10-29 15:33:36 +00:00
David Greenman
4590fd3a2a Fixed init functions argument type - caddr_t -> void *. Fixed a couple of
compiler warnings.
1995-09-09 18:10:37 +00:00
Bruce Evans
41a93c86d6 Fix benign type mismatch in a sysinit function arg. 1995-08-30 00:17:18 +00:00
Julian Elischer
2b14f991e6 Reviewed by: julian with quick glances by bruce and others
Submitted by:	terry (terry lambert)
This is  a composite of 3 patch sets submitted by terry.
they are:
New low-level init code that supports loadbal modules better
some cleanups in the namei code to help terry in 16-bit character support
some changes to the mount-root code to make it a little more
modular..

NOTE: mounting root off cdrom or NFS MIGHT be broken as I haven't been able
to test those cases..

certainly mounting root of disk still works just fine..
mfs should work but is untested. (tomorrows task)

The low level init stuff includes a total rewrite of init_main.c
to make it possible for new modules to have an init phase by simply
adding an entry to a TEXT_SET (or is it DATA_SET) list. thus a new module can
be added to the kernel without editing any other files other than the
'files' file.
1995-08-28 09:19:25 +00:00
Poul-Henning Kamp
e113d7633d Make a kernel sans FFS possible. 1994-11-12 01:47:43 +00:00
Garrett Wollman
c901836c14 Implemented loadable VFS modules, and made most existing filesystems
loadable.  (NFS is a notable exception.)
1994-09-21 03:47:43 +00:00
Doug Rabson
27a0bc89a4 Added msdosfs.
Obtained from: NetBSD
1994-09-19 15:41:57 +00:00
David Greenman
e0e9c42112 Implemented filesystem clean bit via:
machdep.c:
	Changed printf's a little and call vfs_unmountall() if the sync was
	successful.

cd9660_vfsops.c, ffs_vfsops.c, nfs_vfsops.c, lfs_vfsops.c:
	Allow dismount of root FS. It is now disallowed at a higher level.

vfs_conf.c:
	Removed unused rootfs global.

vfs_subr.c:
	Added new routines vfs_unmountall and vfs_unmountroot. Filesystems
	are now dismounted if the machine is properly rebooted.

ffs_vfsops.c:
	Toggle clean bit at the appropriate places. Print warning if an
	unclean FS is mounted.

ffs_vfsops.c, lfs_vfsops.c:
	Fix bug in selecting proper flags for VOP_CLOSE().

vfs_syscalls.c:
	Disallow dismounting root FS via umount syscall.
1994-08-20 16:03:26 +00:00
David Greenman
3c4dd3568f Added $Id$ 1994-08-02 07:55:43 +00:00
Rodney W. Grimes
df8bae1de4 BSD 4.4 Lite Kernel Sources 1994-05-24 10:09:53 +00:00