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Linux From Scratch This Forum is for the discussion of LFS.
LFS is a project that provides you with the steps necessary to build your own custom Linux system.


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Old 04-13-2005, 08:10 AM   #1
Registered: Mar 2005
Location: Ireland
Distribution: LFS, SuSE, Debian, gentoo
Posts: 93

Rep: Reputation: 15
kernel panic LFS 6.0

Hi there. I'd been trying to het through the early stages (pre-X) of BLFS by using
chroot. I knew that the minor versions of the host and lfs kernels were
different. I got as far as autofs and i had to recompile the kernel here
for SBM and NFS filesystem support. I booted into LFS and did this using
the following

make menuconfig

ticked off all the boxes pertaining to NFS, automounting and SMB

make install_modules

cp arch/i386/boot/bzImage /boot/lfskernel-
cp /boot/
cp .config /boot/config-

and i reboot into SuSE to see how things were goin (??) When I tried to
compile and make autofs, I got errors, which I reckoned had something to
do with the different kernel versions. I reboot back into LFS and I get

make: warning: Clock skew detected. Your build may be incomplete.
root@linux:/sources/linux- chroot "$LFS" /usr/bin/env -i \
root@linux:/sources/linux- make menuconfig
make: Warning: File `.vmlinux.cmd' has modification time 2.7e+02 s in
the future
scripts/kconfig/mconf arch/i386/Kconfig
# using defaults found in .config

Your kernel configuration changes were NOT saved.

make: warning: Clock skew detected. Your build may be incomplete.

make: warning: Clock skew detected. Your build may be incomplete.

I went back into chroot recompiled (this time with the make mrproper and the sed command (chapter 8), etc., and included NFS, SMB and automount support) when i do make, and make install and copy the three file like in the book, everything seems fine. However when I booted back into LFS, I get the same "kernel panic" problems again. Any ideas, or will I have to rebuild the whole lot again?? Thanks in advance

Old 04-15-2005, 09:17 AM   #2
Registered: Jun 2004
Distribution: Turtle Kevux 0.8.8
Posts: 129

Rep: Reputation: 15
make: warning: Clock skew detected. Your build may be incomplete.
is a result of the file you uncrompressed or copied from another system. its date/time is ahead of your systems (ie: you system is on 04/22/2004, and the file is on 02/01/2005)

Another possibility is that the installation process was stopped at a certain point, then rebooted. If the time changed (say, to update to the correct year) then returning to the install process, again this would happen.

Also, did you run
make mrproper
before all of the other make commands?

And how is your grub/lilo configured? Many problems happen from kernel panic when grub/lilo is not configured correctly to reflect your system.


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