Re: kernel panic booting from raid5 with external log

[Stephen Lord <lord@xxxxxxx>]

Ingo Juergensmann wrote:

> On Sat, Mar 02, 2002 at 08:55:04AM -0500, Martin K. Petersen wrote:
>
> > Ingo> Kernel panic when mounting rootfs: root fs uses a external log
> > Ingo> and I should specify where the external logdev is within my
> > Ingo> mount command - but how?!
> > You need to add logdev=/dev/foo to the mount options.
> Ok, but tell me where or how?
> I mean there is already a logdev=/dev/sde2 option in /etc/fstab, but how can
> kernel read /etc/fstab when it is unable to mount rootfs on /?
>
> Booting from auxiallary disk and mounting the raid by hand with appropriate
> mount option actually works, but that was not my point.
>
> > Ingo> I've put my nose into man lilo.conf, man mkfs.xfs and
> > Ingo> Boot-Howtos but found nothing that could help me.
> > man mount
> man mount was too obvious for me, so I omitted this in my list of read man
> pages. Sorry, my fault.
>
> man rdev shows that option ro is currently the only option that can be
> passed to kernel for boot time.
>
> So, it seems as if one can not use a raid5 on / with a external logdev. Is
> this right?
Try passing mount options into the rootfs using the rootflags= boot option.

Steve