Re: #2 - Swapped disks and now stuck in the mountroot> prompt

2004-02-26 Thread roberto 

>
> hello, i'm eechia.
> i've come across your "mountroot" problem on the web.
> i'm facing the similiar problem too.
> can you give me some guideline regarding it?
> thanks you
>
> -eechia-
>
> Date: 12 jan 2004
>
>
According to me, you have choice:
1) start the kernel with "-a" option (e.g. "boot -a" ): with this flag the
device "ufs:/dev/ad2s1a" (warning: type in your appropriate device) is
accepted by "mountroot> " and the boot proceed. Than I can change the
fstab
accordingly to make the change permanent.

2) boot with a rescue cdrom, get a shell prompt and change the /etc/fstab
accordingly (yes this file is red before booting the kernel, to instruct
the kernel itself to the right root device);

But I've an unanswered question from freebsd-questions people:
  - Why without the boot "-a" flag, why the kernel ask me a device and
even it is the correct one vfs_conf.c:vfs_mountroot_ask() give me the
error code 6?

Bye
Roberto
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#2 - Swapped disks and now stuck in the mountroot> prompt

2004-01-12 Thread roberto 


Date: 12 jan 2004

I've installed FreeBSD 4.9 on a ide0:0 (primary IDE, master hd) then
ported the hard disk on a second PC and installed as ide1:0 (secondary
IDE, master hd) without update the "/etc/fstab" file.

When booting the kernel start probing devices, I see the disk as "ad2"
then the kernel halts when trying to mount the root file system with the
following message:

   mount root from ufs:/dev/ad0s1a
   root mount failed: 6

At the prompt I've tried with "ufs:/dev/ad2s1a", now the right device, but
it does not work.

The solution is to instruct the kernel with the right device: but ad2s1a
seems to be wrong...

After several attempts I discover that the kernel must be started with the
option "-a": with this flag the device "ufs:/dev/ad2s1a" is accepted by
"mountroot> " and the boot proceed. Than I can change the fstab
accordingly to make the change permanent.

My question are:
 1) I've made any mistake ?
 2) Without the boot "-a" flag, why the kernel ask me a device and even it
is the correct one vfs_conf.c:vfs_mountroot_ask() give me the error code
6?


Thanks
Roberto

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