LPI Linux Certification/Maintaining A Linux File System

Detailed Objective (203.2) (LPIC-2 Version 4.5) Weight: 4 Description: Candidates should be able to properly maintain a Linux filesystem using system utilities. This objective includes manipulating standard filesystems and monitoring SMART devices. Key Knowledge Areas: Tools and utilities to manipulate ext2, ext3 and ext4 Tools and utilities to perform basic Btrfs operations, including subvolumes and snapshots Tools and utilities to manipulate XFS Awareness of ZFS Terms and Utilities: mkfs (mkfs.*) mkswap fsck (fsck.*) tune2fs, dumpe2fs, debugfs btrfs, btrfs-convert xfs_info, xfs_check, xfs_repair, xfsdump and xfsrestore smartd, smartctl Formatting a partition Before you format a partition you need to choose the right filesystem for your needs. The most common filesystem on linux is ext3 which is a journaled filesystem based on ext2. To format a partition with a filesystem you need to use the mkfs.* commands #ext3 mkfs.ext3 /dev/hda1 #fat mkfs.vfat /dev/hda1 #xfs mkfs.xfs /dev/hda1 #reiserfs mkfs.reiserfs /dev/hda1 to create an ext2/ext3 filesystem you can also use the mke2fs utility #ext2 mke2fs /dev/hda1 #ext3 mke2fs -j /dev/hda1 Configuring and repair filesystem tune2fs it's an utility used to tune ext2/ext3 filesystem #add the journal to an ext2 filesystem(convert from ext2 to ext3) tune2fs -j /dev/hda1 #set the max mount count before the filesystem is checked for errors to 30 tune2fs -c 30 /dev/hda1 #set the max time before the filesystem is checked for errors to 10 days tune2fs -i 10d /dev/hda1 you can also tune a reiserfs partition using reiserfstune #create a new journal for /dev/hda1 into /dev/hda2 reiserfstune --journal-new-device /dev/hda2 -f /dev/hda1 to check a filesystem for errors you can use fsck.* #ext3 fsck.ext3 /dev/hda1 #fat fsck.vfat /dev/hda1 #xfs fsck.xfs /dev/hda1 #reiserfs fsck.reiserfs /dev/hda1 you can also just run fsck /dev/hda1 directly and it will detect the filesystem Exercises linux