Date: Sun, 7 Jan 2007 23:20:55 +0000 From: Josef Karthauser <joe@tao.org.uk> To: freebsd-fs@freebsd.org Subject: Trouble booting second ide drive (gmirror configuration). Message-ID: <20070107232055.GA2450@genius.tao.org.uk>
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I'm scratching my head trying to work out why I can't boot onto my
second ide drive at the boot: prompt. I have a perfectly valid
partition on it, which I can mount successfully when the system is
booted from the other disk, but the boot loader says that the disk label
is corrupt. What am I doing wrong?
So, here are the details. The machine is a:
FreeBSD X 5.5-STABLE FreeBSD 5.5-STABLE #7: Mon Oct 2 15:55:35 BST 2006
joe@X:/usr/obj/usr/src/sys/KERNEL i386
There are two ide drives, ad0 and ad1.
# disklabel ad0
# /dev/ad0s1:
8 partitions:
# size offset fstype [fsize bsize bps/cpg]
a: 2097152 0 4.2BSD 2048 16384 28552=20
b: 6291456 2097152 swap =20
c: 240107427 0 unused 0 0 # "raw" part, =
don't edit
d: 41943040 8388608 4.2BSD 2048 16384 28552=20
e: 41943040 50331648 4.2BSD 2048 16384 28552=20
f: 41943040 92274688 4.2BSD 2048 16384 28552=20
g: 105880000 134217728 4.2BSD 2048 16384 28552=20
# disklabel ad1
# /dev/ad1s1:
8 partitions:
# size offset fstype [fsize bsize bps/cpg]
a: 2097152 16 4.2BSD 2048 16384 28552=20
c: 240099488 0 unused 0 0 # "raw" part, =
don't edit
disklabel: partition c doesn't cover the whole unit!
disklabel: An incorrect partition c may cause problems for standard sys=
tem utilities
The c partition is the wrong size because this is actually a gmirror
partition once gmirror is loaded. However the device /dev/ad1s1a can be
mounted without problems:
# mount /dev/ad1s1a /mnt
# ls /mnt
.cshrc SYNC2 data jails root usr
.profile bin dev lib sbin var
.snap boot dist libexec stand webs
COPYRIGHT boot.config entropy mnt sys
NEW cdrom etc proc tmp
SYNC compat home rescue users
So when I boot the machine, and attempt to boot the second drive I get
this:
FreeBSD/i386 boot
Default: 0:ad(0,a)/boot/loader
boot: 1:ad(1,1,a)/boot/loaderConsoles: serial port =20
BIOS drive A: is disk0
BIOS drive C: is disk1
BIOS drive D: is disk2
BIOS 640kB/2095040kB available memory
FreeBSD/i386 bootstrap loader, Revision 1.1
(joe@X, Fri Apr 29 09:46:27 BST 2005)
can't load 'kernel'
Type '?' for a list of commands, 'help' for more detailed help.
OK show
LINES=3D24
acpi_load=3DYES
comconsole_speed=3D9600
console=3Dcomconsole
currdev=3Ddisk2s1a:
hint.acpi.0.oem=3DGBT =20
hint.acpi.0.revision=3D1
hint.acpi.0.rsdt=3D0x7fef3000
interpret=3DOK
loaddev=3Ddisk2s1a:
prompt=3D${interpret}
OK
So it manages to load the boot loader from the correct device, but
somehow fails when it comes to loading the kernel.
I'd really appreciate some suggestions.
Thanks,
Joe
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