Daniel B. Thurman wrote: > I was getting dangerously close to running out of disk space > since /usr was filling up fast. > > I thought it was simple to tar-copy /usr to a different drive/partiton > using tar copy such as: > > (cd /usr; tar cpf - .) | (cd /newpartition; tar xpf -) using tar doesn't copy the extended attributes used by SELinux. Have you relabeled the drive? ( touch /.relabel ; reboot ) > I tar copied the contents of /usr into my new drive/partition > and I changed the partition label to /usr, updated my > /etc/fstab file, renamed my /usr to /usr-b, created > an empty directory /usr, chmod it to 775, mounted > /usr - and it all looked fine. I then unmounted /usr, > and then rebooted. > > The reboot reported that there was a problem with > the two library files: somelibfile.so.1 and somelibfile.so.2 > and then gnome came up with user/password screen. > > I logged in as a normal user, and after that point, I a > black screen came up with the gnome-X-cursor and > then stopped. Nothing worked at this point. > > I then rebooted using rescue CD, and examined the > messages log file and it appears that selinux reported > all sorts of AVC denied over /usr and other non-system > mounted filesystems. > > Clearly, it seems that selinux is having problems. So relabel the drive. > I suppose I can reboot setting the selinux = 0 and then > begin the task of somehow repairing selinux tags in all > of my files? Does this make any sense? > > Anyone have a better solution? > > I could reverse the /usr process and get rename /usr-b > and comment out the /usr from my fstab, but I wanted > some input from member in this forum before attempting > to do that - I would end up back to my original disk-space > problem. > > Any advice? When I started looking into backups after SELinux, the recommendation was to use "star" instead of "tar" and to have it copy the extended attributes as well. >From by backup script: > # Use star instead of tar to capture the SELinux attributes > > TAR=star > > # Write archive to this file > # Use f=tarfile to write to tarfile > # Leave empty to write to sdtout > > TARFILE=root > STAR_COMPRESS_FLAG=-9 > > # -c create a star archive > # -bz compress with bzip2 > # -C / to backup files starting from / > # -H=exustar format is required to store SELinux attributes > # -M do not descend mount points > # ignore -multivol for now > # -P allow partial last record > # -vv increase verbosity and list files being archived > # -xattr to archive SELinux attributes > > OPTS="-c - -bz -C / -H=exustar -M -P -vv -xattr" > > $TAR $OPTS $FS | split -d -b $SPLITSIZE $TARFILE I'm compressing and writing to DVDs, so you night not need all of the options or the split pipe that I use. -- Kevin J. Cummings kjchome@xxxxxxx cummings@xxxxxxxxxxxxxxxxxx cummings@xxxxxxxxxxxxxxxxxxxxxxx Registered Linux User #1232 (http://counter.li.org)
