Damn unmouted root

I've been having the hardest time getting a kernel I've compiled to
work. I've compiled kernels at least a dozen times and this is the
first one that has given me any real trouble. I think the issue might
be the scsi hard-drive.

I've compiled in scsi support ( actually in, not as module ), but every
time I try to boot the kernel, i get the error

VFS unable to mount root fs on /dev/hdf1

and a kernel panic.

the kernel uses devfs and I'm passing the kernel

root=/dev/hdf1 devfs=mount

as I said, I'm pretty sure its the scsi harddrive that is giving me
problems as its the only thing in this situation that I've never had to
deal with before, but even with that insight I haven't been able to
figure out how to get the kernel.

Thanks,
John

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Re: Damn unmouted root

Hi,

* John T. Williams (jowillia@vt.edu) wrote:
> VFS unable to mount root fs on /dev/hdf1

Try it with your filesystem type (ex3,reiserfs) compiled in (not as module).

greets


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Re: Damn unmouted root

I've never myself done anything w/ SCSI drives (other than ide-scsi
emulation for CD-Writing pre kernel 2.6), but I thought SCSI harddrives
were usually /dev/sd?, while IDE drives were /dev/hd?.

From /usr/src/linux-2.6.7/Documentation/devices.txt:

8 block SCSI disk devices (0-15)
0 = /dev/sda First SCSI disk whole disk
16 = /dev/sdb Second SCSI disk whole disk
32 = /dev/sdc Third SCSI disk whole disk
...
240 = /dev/sdp Sixteenth SCSI disk whole disk

Partitions are handled in the same way as for IDE
disks (see major number 3) except that the limit on
partitions is 15.

Good luck,
Conway S. Smith


John T. Williams wrote:
> I've been having the hardest time getting a kernel I've compiled to
> work. I've compiled kernels at least a dozen times and this is the
> first one that has given me any real trouble. I think the issue might
> be the scsi hard-drive.
>
> I've compiled in scsi support ( actually in, not as module ), but every
> time I try to boot the kernel, i get the error
>
> VFS unable to mount root fs on /dev/hdf1
>
> and a kernel panic.
>
> the kernel uses devfs and I'm passing the kernel
>
> root=/dev/hdf1 devfs=mount
>
> as I said, I'm pretty sure its the scsi harddrive that is giving me
> problems as its the only thing in this situation that I've never had to
> deal with before, but even with that insight I haven't been able to
> figure out how to get the kernel.
>
> Thanks,
> John
>
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Re: Damn unmouted root

At 10:55 PM 6/24/2004 -0400, John T. Williams wrote:
>I've been having the hardest time getting a kernel I've compiled to
>work. I've compiled kernels at least a dozen times and this is the
>first one that has given me any real trouble. I think the issue might
>be the scsi hard-drive.
>
>I've compiled in scsi support ( actually in, not as module ), but every
>time I try to boot the kernel, i get the error
>
>VFS unable to mount root fs on /dev/hdf1
>
>and a kernel panic.
>
>the kernel uses devfs and I'm passing the kernel
>
>root=/dev/hdf1 devfs=mount
>
>as I said, I'm pretty sure its the scsi harddrive that is giving me
>problems as its the only thing in this situation that I've never had to
>deal with before, but even with that insight I haven't been able to
>figure out how to get the kernel.


With absolutely no details provided, either about the kernel you are
compiling or the system you are trying to run it on (or what Linux distro
is involved), all one can really do is make "obvious" comments. In that
spirit -- it is unusual for scsi drives to use "hd**" devices. They usually
are "sd**" devices. Might you have made an error of that sort?

If your problem is not that, or the lack of filesystem support someone else
suggested, please try posting a description that includes the details ...
including why you believe your root scsi drive is accessed as /dev/hdf .



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