Greetings !!
Let me first give details of the context: I’m working in a laboratory in a school… since two weeks now the heating system is down, we lost three computers due to the cold and humidity.
One computer finally survived, the power supply was dead and replaced and fortunalety we could boot again the openSuSE 12.2 that was installed on.
Problem is, the two other computers containing the students different works (unbacked up as usual) are dead (motherboard or GPU).
I couldn’t replace them quick so I tried something.
I put the two hard drives on the survivor computer and mounted the different partitions.
/dev/sdb1 → (the corresponding root partition) /media/jasonroot (acl,defaults,user)
/dev/sdb2 → (the corresponding home partition) /media/jasonhome (acl,defaults,user)
/dev/sdc1 → (the corresponding root partition) /media/jessicaroot (acl,defaults,user)
/dev/sdc2 → (the corresponding home partition) /media/jessicahome (acl,defaults,user)
…then I created the two users on the tolunay’s computer using the root account
I created a symbolic link on tolunay’s /home folder to /media/jasonroot (because most of the works were done using the root account), I did the same for jessica’s. The “home” directory for jason and jessica are not crucial actually.
ln -s /media/jasonroot /home/jason
ln -s /media/jessicaroot /home/jessica
That was the first step…
In the second step I set up the xdmcp feature in order to let jessica and jason work from a replacement computer that couldn’t simply use the SATA3 hard drives from the two dead computers because there wasn’t room to swap them.
It worked (I could login) but I got a lnusertemp error (call to lnusertemp failed (temporary directories full ?)).
I was in a hurry so I didn’t wrote down the different commands I did to fix it up. It was about chown and chmod, the history hasn’t been deleted I could check it tomorrow.
My question is:
How can I map both two users as root ? I added both users in the “root group” but it seems that we need to change the group id of different folders to “users” to avoid errors such lnusertemp… and set them in rw mode for group.
When diving on the desktop there were lot of messages asking for the root password for the tolunay’s computer I did not write them down yet but it would be nice to avoid them (there were at least ten or eleven prompt windows)…
Is this possible to avoid making too much alterations to the hard drive that have in a near future, I guess, go back to another tower to be used as the boot device ?
I know once the hard drive back to the tower that a chown root:root -R /root and chown jason|jessica:users -R /home/jason|jessica with chmod 755 -R /root and chmod 755 -R /home/jjason|jessica will restore the original settings.
I did nothing on the root directory except a chgrp users -R on /tmp and /var/tmp (with chmod 766 -R) but it didn’t fixed the lnusertemp error (I did not rolled back to the original values).
Thank for your patience ^^