sudo mkdir /mnt/mounting_point
sudo blkid
output eg.
$ sudo blkid
/dev/xvda: UUID="bd02b157-..." TYPE="ext3" LABEL="os"
/dev/xvdb: UUID="41214e24-..." TYPE="swap"
/dev/xvdc: UUID="4d3f3fb0-..." SEC_TYPE="ext2" TYPE="ext3" LABEL="mountme"
sudo e2label /dev/xvdc mountme
$ sudo blkid
....
/dev/xvdc: UUID="4d3f3fb0-..." SEC_TYPE="ext2" TYPE="ext3" LABEL="mountme"
# mount backup
LABEL=mountme /mnt/mounting_point ext3 defaults,nosuid,noexec,nodev 1 2
sudo mount -a