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Re: [Discussion] Kernel panic on Fedora Core 2

To: Todd.Witten@xxxxxxx
Subject: Re: [Discussion] Kernel panic on Fedora Core 2
From: Glen Turner <glen.turner@xxxxxxxxxxxxx>
Date: Fri, 03 Dec 2004 09:51:31 +1030
Todd.Witten@xxxxxxx wrote:

Any ideas?

The line of interest is mount: error 19 mounting ext3 which is the "nash" mount command reporting errno=19 "No such device" mounting the root filesystem. All the other errors are because this mount failed.

Since we know the root filesystem exists some likely possibilities
are
  -  the ext3 and jbd modules haven't been built (you've made a
     .config error)
  -  the initrd contains modules from another kernel version and
     thus they don't load (you've mistyped the GRUB initrd parameter
     or said "make install" before "make modules_install").
  -  you've got a dodgy modprobe utility (were you running 2.5
     earlier and have retained the locally-built modprobe?)

There are lot of other possibilities (such as an inconsistent
partition table or no /initrd mount point) but they'll effect
other kernel boots too.

The procedure for a kernel build of FC2 is:

  yum install kernel-sourcecode
  cd /usr/src/linux*
  make mrproper
  cp configs/kernel-....config .config
  # do any patching here
  make oldconfig
  # if you want to make other config choices then
  # make gconfig
  make
  make modules_install
  make install
  /sbin/shutdown -r -f now "New kernel"

Give it a go without the Web100 patches to get the process right
and then go your hardest (starting from "make mrproper" after
patching, so you might want to salt away the .config from the
unpatched build).

Hope this helps,
Glen

--
 Glen Turner         Tel: (08) 8303 3936 or +61 8 8303 3936
 Australia's Academic & Research Network  www.aarnet.edu.au

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