Linux-kernel mailing list archive 2000-04,: Re: can't boot without "root=..." on kernel cmdline

# Re: can't boot without "root=..." on kernel cmdline

Chuck Lever (cel@monkey.org)
Tue, 25 Jan 2000 11:47:59 -0500 (EST)

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On Tue, 25 Jan 2000 almesber@lrc.di.epfl.ch wrote:
> Chuck Lever wrote:
> > without specifying "root=...", the kernel panics on boot with the message
> > "VFS: Cannot open root device 00:80". i have no idea where it's getting
> > major=0, minor=128. specifying "root=/dev/sda1" on the LILO: cmdline
> > allows linux to boot correctly. also the distributed RedHat kernels boot
> > correctly without "root=..."
>
> Is this plain 2.3.39 or did you make any changes to
> init/main.c:name_to_kdev_t or to include/linux/kdev_t.h:to_kdev_t ?

no changes to either, occurs in several kernel versions.

> First, you should check the output of lilo -q -v for the lines that say
> Options: "root=801" or such. If all of them agree on "root=801", it's
> init/main.c:name_to_kdev_t that is messing things up.

lilo says root=801. i'll see what's up with name_to_kdev_t.

- Chuck Lever

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