Copy MBR record from /dev/sda to /dev/sdb in raid1?
Hi, I have running software raid1 on linux(debian). My harddrives are clean and in healthy state. The problem is that the drive /dev/sdb does not have the correct MBR record and thus is not bootable. Can I copy master boot record from drive /dev/sda to drive /dev/sdb ? What command should I use?
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Answers: 1
Hi,
Well if hard drives has the same bytes and same partitions you can run this command to copy master boot record from sda to sdb:
Above command will copy first 512 bytes (MBR) from /dev/sda to /sdb/sdb disk.
Well if hard drives has the same bytes and same partitions you can run this command to copy master boot record from sda to sdb:
dd if=/dev/sda of=/dev/sdb bs=512 count=1
Above command will copy first 512 bytes (MBR) from /dev/sda to /sdb/sdb disk.
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