System information

# mkdir /mnt/sda3

# mount -t ext3 /dev/sda3 /mnt/sda3

# mkdir /backup-files

# mount -t ext3 /dev/sda6 /backup-files

6. Restore the data.

# cd /mnt/sda1

# restore -rf /backup-files/sda1.dump

# cd /mnt/sda2

# restore -rf /backup-files/sda2.dump

# cd /mnt/sda3

# restore -rf /backup-files/sda3.dump

If you want to restore from a remote host or restore from a backup file on a remote host you

can use either ssh or rsh. You will need to configure a password-less login for the following

examples:

# ssh 10.0.0.87 "cd /mnt/sda1 & & cat /backup-files/sda1.dump |

restore -rf -"

# ssh 10.0.0.87 "cd /mnt/sda1 & & RSH=/usr/bin/ssh restore -r -f

10.66.0.124:/tmp/sda1.dump"

7. Reboot.

6.6. Ot her Ext 4 File Syst em Ut ilit ies

Red Hat Enterprise Linux 6 also features other utilities for managing ext4 file systems:

e2f sck

Used to repair an ext4 file system. This tool checks and repairs an ext4 file system more

efficiently than ext3, thanks to updates in the ext4 disk structure.

e2lab el

Changes the label on an ext4 file system. This tool also works on ext2 and ext3 file systems.

q u o t a

Controls and reports on disk space (blocks) and file (inode) usage by users and groups on

an ext4 file system. For more information on using q uo ta, refer to man q uo ta and

Section 16.1, “ Configuring D isk Quotas” .

As demonstrated in Section 6.2, “ Mounting an Ext4 File System” , the tune2fs utility can also adjust

configurable file system parameters for ext2, ext3, and ext4 file systems. In addition, the following

tools are also useful in debugging and analyzing ext4 file systems:

d ebu g f s

Debugs ext2, ext3, or ext4 file systems.

Red Hat Ent erprise Lin ux 6 St orage Admin ist rat io n G uide