Difference between revisions of "HowTo Backup And Restore The Master Boot Record (MBR)"
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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'''". |
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".
- Backup the MBR on disk: "sda" to: "/var/nst/backup/mbrbackup"
[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 ~]#