I have an esx 3.0.1 server and my /var says that its read only even when I'm logged in as root. I would like to not reboot the server if at all possible. Any ideas?
You can type
Go to the root folder
cd /
Then type
chmod 755 var
That will fix it.
If the permission change doesn't work it may be that you have a corrupt partition and it has been mounted an read only. You can check the status of it in /etc/fstab and then run fsck on it.
IF /var is a file system then maybe first this:
"cd /"
"ls -la"
and check the rights for /var - should be "drwxr-xr-x"
then
"mount"
and check if /var (rw) or (ro)
Have you checked this:
http://www.vmware.com/community/thread.jspa?threadID=82939&tstart=0