disk crashing and moving /home to a new server but all permissions are root HELP!

nocnoc · 11-29-2006, 08:05 AM

Hello all,

We have an ftp site here on redhat 9 (the only linux server on the network) the disk is failing and we are in the process of bringing up a new redhat server. So far what we have done was copied the user conf files from the old server to the new server and the /home directory from the old to the new server. The problem that we are running into now is that the users cannot log in b/c they don't have permissions to thier home directory. When I do an ls -l all 136 /home/<home directory> are root owned

drwx------ 5 root root 4096 Nov 28 21:25 foldername1
drwxr-xr-x 2 root root 4096 Nov 28 18:58 foldername2
drwx------ 9 root root 4096 Nov 29 03:44 foldername3
drwx------ 2 root root 4096 Nov 29 00:04 foldername4
drwxr-xr-x 3 root root 4096 Nov 29 01:16 foldername5
drwx------ 4 root root 4096 Nov 29 06:11 foldername6
drwx------ 2 root root 4096 Nov 28 18:58 foldername7
drwx------ 3 root root 4096 Nov 28 22:17 foldername8
drwx------ 2 root root 4096 Nov 29 03:50 foldername9
drwx------ 6 root root 4096 Nov 29 00:00 foldername10
drwxr-xr-x 2 root root 4096 Nov 28 18:58 foldername11
drwxr-xr-x 2 root root 4096 Nov 28 18:58 foldername12
drwx------ 2 root root 4096 Nov 28 19:29 foldername13
drwxr-xr-x 2 root root 4096 Nov 28 18:58 foldername14
drwx------ 31 root root 4096 Nov 28 22:06 foldername15
drwx------ 6 root root 4096 Nov 29 05:24 foldername16
drwx------ 3 root root 4096 Nov 29 06:32 foldername17
drwxr-xr-x 2 root root 4096 Nov 28 19:08 foldername18
drwx------ 2 root root 4096 Nov 28 22:19 foldername19

How can I preserve the ownership of these directories when moving the /home directory from the old server (dying) to the new server. Or is there a file in /etc that has all this info that I could copy over.

Thanks

unSpawn · 11-29-2006, 08:37 AM

Hello and welcome to LQ, hope you like it here.

To preserve DAC rights see "man cp", under "--preserve". Since you have already copied over all files it would be easier to use a wee script to change ownership provided the users have the same UID and GID in the new system (/etc/passwd and /etc/group). On the old system run:

Code:

find /home -type d -maxdepth 1 | while read dir; do 
 [ "${dir}" != "/home" ] && stat -c "chmod %a %n; chown -R %u:%g %n" "${dir}"
done | tee /tmp/chownhome.sh

This will produce a script with lines looking like this:

Code:

chmod 700 /home/lost+found; chown -R 0:0 /home/lost+found
chmod 700 /home/user0; chown -R 501:501 /home/user0
chmod 700 /home/user1; chown -R 502:502 /home/user1
# ad nauseam

Inspect to verify contents are OK.
Copy "/tmp/chownhome.sh" to the new system.
Run as root account user:

Code:

sh /tmp/chownhome.sh

YMMV(VM) as usual.

nocnoc · 11-29-2006, 09:10 AM

unSpawn

Thanks for the reply the script does in fact work but I don't see /tmp/chownhome.sh anywhere.

unSpawn · 11-29-2006, 10:51 AM

I don't see /tmp/chownhome.sh anywhere
You didn't copy it to the new server?

nocnoc · 11-29-2006, 11:29 AM

I got it now. I was looking in the wrong server for it.

Thanks