Sunday, May 19, 2013

Using fdisk on AIR-BAG to restore to a larger RAID configuration

Question: How do I perform an AIR-BAG recovery to a larger hard drive configuration?
Keywords: guided-step-by-step, larger, recovery
Operating Systems: Linux

Important Information:
Make sure you ALWAYS test the AIR-BAG Recovery Media before relying on it for a disaster.

Written Guided Step-by-Step

1. Boot off AIR-BAG CD 
2. Make sure Backup Device where Master backups are located is accessible
3. Do option # 7 (Test Backup and Hard Drive Accessibility)

If step #3 fails for whatever reason, please do not attempt step #4.

4. Do option # 2 (Guided Step-By-Step Restore)

IMPORTANT NOTE:
At anytime during the AIR-BAG Recovery Boot Menu, you can press [ ALT-F3 ] to get a display of the original 
fdisk file-system settings: example of typical screen shot of a fdisk partition table...

Configuration before running fdisk with AIR-BAG
=================================================================
Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0000b655

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1         128     1024000   83  Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2             128        2678    20480000   83  Linux
/dev/sda3            2678        2933     2048000   82  Linux swap
/dev/sda4            2933        9730    54597632    5  Extended
/dev/sda5            2933        9730    54596608   83  Linux
=================================================================

Configuration after running fdisk with AIR-BAG
=================================================================
Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x1549f232

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1         128     1028128+  83  Linux
/dev/sda2             129       12000    95361840   83  Linux
/dev/sda3           12001       13000     8032500   82  Linux swap / Solaris
/dev/sda4           13001       38913   208146172+   5  Extended
/dev/sda5           13001       38913   208146141   83  Linux
=================================================================

 

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