[plug] Proglems with NFS Installation of Mandrake 8.2

[Craig Ringer]

> Error in exec of stage 2:-(
> Fatal Error in Stage 1: Permission Denied

> I checked the logs and it shows that machine 2 successfully made a nfs 
> connection, but then dies.
> I have the same user name on both machines.  My exports file is:   
> /mnt/cdrom <machine 2> (rw, no_root_squash)

First: change "rw" to "ro", it makes no sense to have a read-write DVD 
exported. Or is there something we'd all really like to know that you've 
got....

Make sure the dvd is being mounted with the executable bits set on the 
files. This could explain why it fails on exec. To do this on a CD, you 
pass the "mode=0777" option to mount, eg
# 
mount -t iso9660 -o mode=0777,ro /dev/cdrom /mnt/cdrom

Also make sure your /etc/fstab entry for /mnt/cdrom doesn't contain 
"noexec" in the options. If it doesn't - add it, then manually mount CDs 
when you want to be able to execute programs off them (this option is 
good for security). See above for suitable mount command.

I don't know what to do for udf filesystems (some DVDs).

While it isn't relevant here (root=uid0 for all sytems unless you're 
faking a root acct for a hacktrap), make sure you have the same user ID 
between systems, too. Usernames mean nothing for NFS.

grep <username> /etc/passwd | cut -d ':' -f 3

will get you your uid. Whoops, so will typing "id" at the prompt.


Hope this somewhat incoherent message is useful.
-- 
Craig Ringer                                IT Manager, POST Newspapers
http://www.postnewspapers.com.au/
GPG Key Fingerprint: AF1C ABFE 7E64 E9C8 FC27  C16E D3CE CDC0 0E93 380D