On Tue, 2002-03-12 at 15:42, François Chenais wrote: > And what happens if the /var/log and /var/run dirs that can change during > the tar ? > > François
Go into single user mode telinit 1 and then tar. I actually use cp -a which seems to preserve all the required attributes. I have done this process before. %telinit 1 %mkdir mnt/var %mkdir mnt/usr %mount /dev/<whatever 4 new var> /mnt/var %mount /dev/<whatever 4 new usr> /mnt/usr %cp -a /usr/* /mnt/var %cp -a /var/* /mnt/usr %umount /mnt/var %umount /mnt/usr %rm -r /mnt/var %rm -r /mnt/usr %umount /var %umount /usr %mv /var /var.old %mv /usr /usr.old %mkdir /var %mkdir /usr %mkdir /dev/<whatever 4 new var> /var %mkdir /dev/<whatever 4 new usr> /usr update /etc/fstab to reflect new changes %telinit 2 to come back to multiuser Please note that above steps are from memory - no guarantees - it worked for me atleast three times. make backups blah blah. Good luck Shri > > On Tue, 12 Mar 2002 15:33:55 +0200 (EET) > George Karaolides <[EMAIL PROTECTED]> wrote: > > > > > Hi Andrew, > > > > You need to be root on your machine to do this. > > > > Make two partitions on the new drive using > > > > cfdisk /dev/<drive> > > > > Then make a filesystem on each partition. Stick to the tried-and-tested > > ext2, or go for one of the new journalling ones like ext3 or reiserfs, if > > you're running a kernel recent enough to support them or can compile one > > that does. > > > > E.g. mke2fs /dev/<partition> > > > > Then mount the first partition e.g. under /mnt > > > > mount /dev/<partition> /mnt > > > > And transfer the data using tar: > > > > tar cplf - -C / var | tar xvf - -C /mnt > > > > Unmount the partition > > > > umount /mnt > > > > Mount the other one and do the same thing for /usr: > > > > mount /dev/<partition> > > tar cplf - -C / usr | tar xvf - -C /mnt > > umount /mnt > > > > Make sure you type the tar commands exactly as above, you don't want to go > > dropping the entire copnmtents of /var or /usr (or even / if you v=get it > > wrong) in the wrong place! > > > > Edit /etc/fstab and either add lines for /usr and /var, or change existing > > ones, to mount your new filesystems instead of the old ones. Here's an > > example: > > > > --- fstab excerpt --- > > > > /dev/sdb6 /usr ext2 rw 0 2 > > /dev/sdb7 /var ext2 rw 0 2 > > > > --- end fstab excerpt --- > > > > Then go to single user mode: > > > > telinit S > > > > Unmount /usr and /var: > > > > umount /usr > > umount /var > > > > Mount all partitions using your new fstab: > > > > mount -a > > > > Check that everything is mounted where it should be: > > > > mount > > > > And go back to your usual runlevel (usually 2 on Debian): > > > > telinit 2 > > > > That's it. Note that if /usr and /var were originally part of your root > > filesystem, the data will still be there but the new filesystem will be > > mounted on the top level directory so you won't see it. After you've > > successfully transferred /usr and /var out of the root filesystem, you can > > reclaim the space by going to single user mode, unmounting /usr and /var, > > and doing the following: > > > > rm -rvf /var > > rm -rvf /usr > > mkdir /var > > mkdir /usr > > > > Be VERY careful that /usr and /var are NOT mounted when you do this! > > Also note, a space or a slash in the wrong place in either of the above > > commands can wreck your system completely! > > > > Good luck, > > > > | George Karaolides Linustech Advanced Solutions, | > > | tel: +357 22 55 61 29 86 Ifigenias Street, 3rd Floor, | > > | web: www.linustech.com.cy Strovolos, Nicosia CY 2003, | > > | email: [EMAIL PROTECTED] Republic of Cyprus. | > > > > On Tue, 12 Mar 2002, Andrew Stephen wrote: > > > > > Hi > > > > > > My /var and /usr partitions have just run out of space and I was wondering > > > what is the best way to copy them to a new drive that has just been > > > installed. > > > > > > Any suggestions would be greatly appreciated. > > > > > > Regards, > > > Andrew > > > > > > > > > > > > -- > > > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > > > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] > > > > > > > > > > > > > > > -- > > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] > > > > > > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] >
