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Add support for booting off RAIDframe RAID1 mirrors. Check the first partition 

type in biosdiskopen(), and if it is of type FS_RAID, add 64 to d->b_off.

NOTE: installboot(8) still needs some hacking to DTRT, but at least this way
if you can load "/boot" off another partition (e.g, wd0h), then wd0a can be
of type `RAID' with a raidframe mirror at the start and the kernel
will load OK of wd0a, and with raidctl -A root partitions, it will change
root as well.
This commit is contained in:
lukem 2000-10-30 07:30:59 +00:00
parent 10203d4eca
commit b14a596beb
1 changed files with 5 additions and 1 deletions
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6
sys/arch/i386/stand/lib/biosdisk.c
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@ -1,4 +1,4 @@
/* $NetBSD: biosdisk.c,v 1.12 1999/08/03 19:46:22 drochner Exp $ */
/* $NetBSD: biosdisk.c,v 1.13 2000/10/30 07:30:59 lukem Exp $ */
/*
* Copyright (c) 1996, 1998
@ -96,6 +96,8 @@ struct biosdisk {
static struct btinfo_bootdisk bi_disk;
#endif
#define RF_PROTECTED_SECTORS 64 /* XXX refer to <.../rf_optnames.h> */
int
biosdiskstrategy(devdata, flag, dblk, size, buf, rsize)
void *devdata;
@ -256,6 +258,8 @@ biosdiskopen(struct open_file *f, ...)
goto out;
} else {
d->boff = lp->d_partitions[partition].p_offset;
if (lp->d_partitions[partition].p_fstype == FS_RAID)
d->boff += RF_PROTECTED_SECTORS;
#ifdef COMPAT_OLDBOOT
d->disktype = lp->d_type;
#endif