Date: Thu, 29 Jan 1998 18:39:40 +1100 (EST) From: Douglas Ray <doug@connect.com.au> To: questions@FreeBSD.ORG Cc: doug@connect.com.au Subject: grief booting 2.2.5-R on wd0s4 Message-ID: <199801290739.SAA01619@nara.off.connect.com.au>
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Problem with target handling in boot command?
/dev/wd0s4a on /: Specified device does not match mounted device
I'm not subscribed to the list: please reply directly.
The gory story:
2.2.5-R installed on wd0s4 (via FTP for 12h, X-DEVELOPER):
1579 cyl, 16 heads, 63 S/T
offset size END Name PType Desc SubType FLAGS
0 63 62 - 6 unused 0
63 34208 34270 wd0s1 2 fat 6
34271 1 34271 wd0s2 2 fat 6
34272 40320 74591 wd0s3 2 fat 6
74592 1516032 1590623 wd0s4 3 freebsd 165 C
1590624 1008 1591631 - 6 unused 0
wd0s4 (777Mb) has default partitioning (but I didn't
transcribe the details)
wd0s4a /
wd0s4b swap
wd0s4e var
wd0s4f usr
The target info appears to be ignored:
boot: 0:wd(4,a)?
and
boot: 0:wd(0,a)?
both show that the kernel is "kernel.GENERIC"
Currently both
boot: 0:wd(4,a)kernel.GENERIC
boot: 0:wd(0,a)kernel.GENERIC
load kernel, complain about no kernel.GENERIC.config, go
through boot sequence up to just before the fsck's where it
changes the root device (and before swapon). At that point
boot: 0:wd(4,a)kernel.GENERIC
says
changing root device to wd4a
panic : cannot mount root
and reboots (yes, that's wd4a not wd0s4a), but
boot: 0:wd(0,a)kernel.GENERIC
runs through swapon, the fsck's, and fails on the subsequent
rw re-mount of / with diagnostic message
/dev/wd0s4a on /: Specified device does not match mounted device
This is some way down the debug trail. I first saw fstab with
/dev/wd0a /
and I had to mount /wd0s4a on /mnt to update it (didn't have
man page, and "mount -w /dev/wd0s4a /" failed with the device
mismatch diagnostic), and a couple of fsck's later we can now
get to the rw re-mount point in the boot sequence. There was
an initial phase, prob. red herring, where the only way I seemed
to be able to load kernel and start the device polls was with
boot: 0:wd(0,c)kernel.GENERIC
Platform is digital's multia.
grateful for any help...
- douglas ray
doug@connect.com.au
network engineer
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