To convert an ext2 filesystem to ext3,login as root and type the following command in terminal #/sbin/tune2fs -j <block device> A valid block device includes the following type of entries 1) .A mapped device -(a logical volume in a volume group) eg: /dev/mapper/VolGroup00-LogVol02 2) .A state device – A traditional storage volume eg: /dev/hdaX
