Difference between revisions of "HowTo Backup And Restore The Master Boot Record (MBR)"

Revision as of 10:57, 26 October 2009

This HowTo shows how to use the dd utility to backup and restore the Master Boot Record (MBR).

Note: This HowTo assumes that the MBR to backup and restore is located on disk: "sda".

[root@probe ~]# mkdir -p /var/nst/backup

[root@probe ~]# dd if=/dev/sda of=/var/nst/backup/mbrbackup bs=512 count=1

1+0 records in
1+0 records out
512 bytes (512 B) copied, 5.6701e-05 s, 9.0 MB/s
[root@probe ~]#

Restore the MBR from: "/var/nst/backup/mbrbackup" on to disk: "sda"

[root@probe ~]# dd if=/var/nst/backup/mbrbackup of=/dev/sda bs=512 count=1

1+0 records in
1+0 records out
512 bytes (512 B) copied, 4.6066e-05 s, 11.1 MB/s
[root@probe ~]#

Revision as of 10:56, 26 October 2009 (view source) Rwh (talk \| contribs) ← Older edit		Revision as of 10:57, 26 October 2009 (view source) Rwh (talk \| contribs) Newer edit →
Line 1:		Line 1:
	This '''HowTo''' shows how to use the '''[http://en.wikipedia.org/wiki/Dd_%28Unix%29 dd]''' utility to '''backup''' and '''restore''' the '''[http://en.wikipedia.org/wiki/Master_boot_record Master Boot Record (MBR)]'''.		This '''HowTo''' shows how to use the '''[http://en.wikipedia.org/wiki/Dd_%28Unix%29 dd]''' utility to '''backup''' and '''restore''' the '''[http://en.wikipedia.org/wiki/Master_boot_record Master Boot Record (MBR)]'''.

−	* '''Note:''' This '''HowTo''' assumes that the '''[http://en.wikipedia.org/wiki/Master_boot_record MBR]''' to '''backup''' and '''restore''' is located on: "'''sda'''".	+	* '''Note:''' This '''HowTo''' assumes that the '''[http://en.wikipedia.org/wiki/Master_boot_record MBR]''' to '''backup''' and '''restore''' is located on disk: "'''sda'''".