Paul Rogers wrote:
I have finished all steps in LFS 7.9 on my old pentium -mmx machine,
and rather than overwrite the existing grub configuration, I ran "update-
grub" from the host Debian 7.5 system.
The LFS system was found and showed up in my Grub Menu, but when I
boot to that, I got the kernel panic mentioned in the subject line.
Not to belabor the point, it's telling you that once the kernel
completes startup it can't get to your root file system to start init.
Presumably the kernel that booted is from LFS, not the Debian host. The
key configuration at this point is in /etc/fstab. It, and the
"root=/dev/sdaX" in your GRUB configuration, had better agree on where
your new system is.
I agree with Paul, but as an interesting aside, I once accidentally booted
a LFS partition with a debian kernel/initrd and it came up. There were
some issues because /lib/modules did not have the debian modules, but I
did get to a command prompt.
In my experience, 'make defconfig' for the kernel is generally sufficient
for an initial boot. There may be some issues with some peripherals such
as a network card driver missing, but it is probably enough to get a bash
prompt.
-- Bruce
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