PE 2850 Cant boot with RHEL4 kernel 2.6.9-42.ELsmp "switchroot: mount failed: 22"

[Tony Schreiner]

Well in some circumstances the the installer/updater has to label it / 
1 because it thinks the label / already exists.

I'd write a new label on the file system with tune2fs -L instead of  
editing grub.conf.

Tony Schreiner
Boston College

On Dec 5, 2007, at 2:26 PM, Mike Hanby wrote:

> Stephen, you nailed it.
>
>
>
> The tech who updated the kernel made a typo in the grub.conf file:
>
>
>
> root=LABEL=/
>
>
>
> should have been
>
>
>
> root=LABEL=/1
>
>
>
> Last time I let another person update kernels on these systems. The  
> sda and sdb cache messages were unrelated, obviously.
>
>
>
> Thanks for the tip,
>
>
>
> Mike
>
>
>
> From: Stephen Anderson [mailto:anderson.stephen at gmail.com]
> Sent: Wednesday, December 05, 2007 12:32
> To: Mike Hanby
> Cc: linux-poweredge at dell.com
> Subject: Re: PE 2850 Cant boot with RHEL4 kernel 2.6.9-42.ELsmp  
> "switchroot: mount failed: 22"
>
>
>
> On 12/5/07, Stephen Anderson <anderson.stephen at gmail.com> wrote:
>
> On 12/4/07, Mike Hanby <mhanby at uab.edu > wrote:
>
> Sorry, yes, installed (rpm -ivh) so the previous kernel is still there
> and I can successfully boot using it.
>
> The external storage is direct attach scsi.
>
> According to rpm -ql, the kernel installed into /boot and /lib,  
> both of
> which are directories on /dev/sda1 (which is located on the internal
> scsi mirror).
>
> I'll try reinstalling it with the external storage disconnected and  
> see
> what happens.
>
> Thanks, Mike
>
>
>
> "mkrootdev: label / not found " error seems to imply that the  
> "root=LABEL=/" line in your new kernel is bad.
>
> What is the "root=" line in your working kernel?
>
> swa
>
>
>
> I am referring to the "root=" line for your working kernel in the  
> file /boot/grub/grub.conf. Compare that to the entry for your new  
> kernel.
>
>
>
> swa
>
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