I guess I'll keep following up my own posts until someone else chimes
in :-). Seriously, though, had anybody else seen this problem? Has
anyone successfully mounted an NFS volume from kickstart wiht CentOS
5? To recap the problem, I have the following commands in the
kickstart %post section:
%post
mount centosmirror:/local/www/html/ks /mnt
/mnt/ks/post/post.sh > /root/post_install.log 2>&1
umount /mnt
It's pretty straight forward, and this has worked for me for years.
But not anymore with CentOS 5. The mount command fails with a
"mount.nfs: Input/output error" message. Here is an annotated copy
of a console session after waiting for the kickstart installation to
complete, and then getting to the console using "Ctrl-Alt-F2":
[1] # /usr/bin/mount centosmirror:/local/www/html /tmp
# umount /tmp
# ls -l /usr/bin/mount
lrwxrwxrwx 1 root 0 9 Apr 10 15:41 /usr/bin/mount -> ./busybox
# cp /usr/bin/busybox /mnt/sysimage/tmp
[2] # /mnt/sysimage/bin/mount centosmirror:/local/www/html /tmp
mount: wrong fs type, bad option, bad superblock on
centosmirror:/local/www/html,
missing codepage or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
# chroot /mnt/sysimage/
[3] # /tmp/busybox mount centosmirror:/local/www/html /mnt
# umount /mnt
[4] # /bin/mount centosmirror:/local/www/html /mnt
mount.nfs: Input/output error
[After a reboot of the newly installed CentOS 5 system]
[5] # /bin/mount centosmirror:/local/www/html /mnt
The mounts marked [1], [3], and [5] worked, but [2] and [4] didn't,
even though they use the exact same binary as [5]. Note that I had
to use /tmp as the mount point in steps [1] and [2], because I would
have clobbered my environment if I hadn't (I learned this the hard
way :-).
Conclusion: the native CentOS 5 mount command fails in a kickstart
environment (with two different failure modes depending if you are
chrooted or not).
I will probably work around this issue by using wget to copy all the
files I need, but I still would like to figure out the root cause.
Is this worth filing a bug for (either CentOS or upstream or both)?
Alfred
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