Re: 2.6.11-rc4-mm1 (VFS: Cannot open root device "301")

Andrew Morton
2005-02-23T20:18:23Z

Steven Cole <elenstev@mesatop.com> wrote:
>
> Andrew Morton wrote:
> > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.11-rc4/2.6.11-rc4-mm1/
> >
> >
> > - Various fixes and updates all over the place. Things seem to have slowed
> > down a bit.
> >
>
> I am having trouble getting recent -mm kernels to boot on my test box.
> For 2.6.11-rc3-mm2 and 2.6.11-rc4-mm1 I get the following:
>
> VFS: Cannot open root device "301" or unknown-block(3,1)
> Please append a correct "root=" boot option
> Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(3,1)
>
> 2.6.11-rc2-mm1 boots fine, and so do plain -rc3 and -rc4.
>
> I copied a working .config from an earlier kernel(-rc3), and ran make oldconfig,
> answering most of the new questions 'n'.
>
> I did try appending root=0301 (which worked last year after similar symptoms,
> but that didn't help this time).
>
> The root fs is ext3, which is compiled in.
> ...
> CONFIG_BASE_SMALL=1

Please set CONFIG_BASE_FULL=y. Check that this causes CONFIG_BASE_SMALL=0,
then retest.