Re: [2.6.24-rc2-git5] kernel panic when config_sysfs = n

[Daniel Lezcano <dlezcano@fr.ibm.com>]

Alexey Dobriyan wrote:
> On 11/15/07, Daniel Lezcano <dlezcano@fr.ibm.com> wrote:
> > When I tryed to boot with qemu a 2.6.24-rc2-git5 with sysfs disabled,
> > the boot fails when trying to mount root partition:
> >
> > "VFS: Cannot open root device "hda2" or unknown-block(0,0)
> > Please append a correct "root=" boot option; here are the available
> > partitions:
> > 0300    2097152 hda0300    2097152 hda driver: ide-disk
> >   driver: ide-disk
> >    0301     257008 hda1
> >    0302    1839442 hda2
> > 1600    4194302 hdc1600    4194302 hdc driver: ide-cdrom
> >   driver: ide-cdrom
> > Kernel panic - not syncing: VFS: Unable to mount root fs on
> > unknown-block(0,0)"
>
> From CONFIG_SYSFS help text:
>
> sysfs is currently used by the block subsystem to mount the root
> partition.  If sysfs is disabled you must specify the boot device on
> the kernel boot command line via its major and minor numbers.  For
> example, "root=03:01" for /dev/hda1.


Shame on me :)
Thanks a lot.
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