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I've just added a 2nd larger disk and would like to transfer /home to it.
I've tried this:
mount -t ext3 /dev/sdb1 /mnt/newhome
cp -ax * /mnt/newhome
up to now everthing is perfect.
mv /home /old_home
mv: cannot move `/home' to `/old_home': Device or resource busy
I've tried doing:
init 3 and then repeating the move cmd but I get the same result, what am I doing wrong?
Not 100% sure, but a couple things that could be causing it are that you could still be in the home directory (check your present working directory to make sure you're in /, not /home/...), or there could be a user logged in who's home is in /home (anybody but root). Try going down to runlevel 1, as runlevel 3 is normally the same as 5 but without a GUI, which could be causing interference. 1 is single-user, meaning only root can do anything.
As a final note, don't forget to edit your /etc/fstab file to auto-mount sdb1 as your /home. This line should work:
This might help.
This is my situation at the moment:
[root@localhost geoff]# df
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 15G 8,1G 5,8G 59% /
/dev/sda7 49G 16G 34G 32% /home
/dev/sdb1 199G 16G 176G 9% /mnt/newhome
If you boot from knoppix you can be pretty certain that home isn't being used or, worse, is changing under you. But I think that is not the problem. /home is likely to be a partition. Look in /etc/fstab to confirm or run "mount". If so, edit /etc/fstab so that /home points at the new partition instead. Maybe also make a directory /mnt/old_home and add a line to /etc/fstab to automatically mount that. Reboot for the new settings to take effect.
You could unmount /home whilst running on the system, but that might go horribly wrong. If you are logged in as root and no-one else is logged in you might be OK, otherwise I think this is just asking for trouble big time. Maybe not . Root's home is not (usually) in /home.
Before starting - Make a backup of /etc/fstab and have a working knoppix disk to hand in case you find yourself locked out!
Have fun, Entenbein.
p.s. try to keep a log of everything you do - copy it to a file (and keep saving the file) or write it down so that we can help you if anything goes wrong.
Hi, I'm back with more pbs
To recover the space used by /home I deleted the old partition on sda.
I expected to be able to extend the / partion with gparted but no, for some reason when I booted the CD it could not find my screen (pbs with xorg?).
So, seeing as I had backed-up everything I re-installed Mandriva 2008 from my DVD. This obviously gives me back a /home on sda which I don't want.
how do I install Linux on sda without /home so that it will use the /home on sdb.
During installation you should be prompted for the location to install the OS. I haven't used Mandriva, but other distros I have used offered the opportunity to select where to install /, /home, or any other directory to it's own partition.
So, during installation, elect to install / to sda and /home to sdb.
Last edited by bigrigdriver; 04-16-2008 at 04:57 PM.