Help! I have lost Boot sector after Hard Disk Replacement.

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As I was doing my routine monthly hard drive swap, I noticed an unusual occurrence. I came to realize that upon shutting down the server and removing the hard disk, I somehow lost the boot sector on the /dev./md0. This has left ne with no other option but to boot from another server with the secondary Hard Disk being used to load data and Operating system (OS). I got this idea from the How to set up software RAID1 on a running LVM system guide. My fear is that I might lose data in md1 in the process of restoring the boot data to md0 followed by copying to /dev./sdb. The option of returning the replaced Hard Disk is out of the question as it will make me lose my back up. I have exhausted all I know. Can someone please help me?

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Best Answer by Tarikul Islam
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Answered By 0 points N/A #108845

Help! I have lost Boot sector after Hard Disk Replacement.

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Configuration values have been recently changed

If the hard disk drive values have been recently changed or adjusted either through hardware or software: If you are utilizing a DDO (Disk Drive Overlay), to detect a hard disk drive verify the values are properly set within the DDO and re-setup the DDO with the DDO diskette, usually provided with the hard disk drive.

If a DDO is not being utilized, verify that the values are properly set within CMOS. If CMOS is setup as Auto this should be sufficient.

Jumpers not set properly

Verify that the jumpers are properly set on the hard disk drive.

Cables loose or not connected

Verify that the data and power cable are connected to the hard disk drive. If the cables appear to be properly connected, disconnect the cables and then re-connect the cables to ensure they are not loose. In addition, verify that the data cable is also connected to the motherboard or interface card.

If this  not solve your problem, unfortunately it is likely that the hard disk drive is bad or the controller is bad.  If available, you may want to connect another known good hard disk drive to the computer to determine if it can be detected.

If it is able to be detected then replace your hard disk drive. If it is not detected, unfortunately you will need to replace the motherboard or controller as it is bad.

If no additional hard disk drive is available it is recommended that the hard disk drive be replaced first or that the computer be serviced / repaired.

Answered By 0 points N/A #108846

Help! I have lost Boot sector after Hard Disk Replacement.

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1. You can use the HBCD (Hiren's Boot CD), there're lots of tools to maintain your hardware, like recovering or repairing MBR (Master Boot Record). You can also running windows xp from it to explore or manage anything.

2. Re-Install or repair your OS from CD.

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