Create The Master Boot Record (Mbr) On The Second Drive - Dell DX6000 Deployment Manual

Dell DX Object Storage – File Gateway Deployment Guide
30. On the Kdump screen uncheck the box.
31. Add the master boot record to the second boot drive.

Create the Master Boot Record (MBR) on the Second Drive

By creating a master boot record on a second logical volume, you can always ensure that the system is
bootable if a boot drive is removed, or – in the less predictable event – that the boot order is randomly
swapped by the operating system.
1. Open a terminal session and run the following command to determine which drive is the boot drive.
# df | grep boot
2. One of the following will display:
/dev/sda1 198337
OR
/dev/sdb1 198337
This is the device and partition the boot drive is on.
3. Run the following command to start grub.
# grub
4. Based on the information obtained about the boot drive, set up the master boot record. (This
example assumes that the command in step one discovered drive 0 as the boot drive.)
If the boot drive is sda, enter the following:
# grub> root (hd0,0)
Filesystem type is ext2fs, partition type 0x83
If the boot drive is sdb, enter the following:
# grub> root (hd1,0)
Filesystem type is ext2fs, partition type 0x83
5. Set up the first master boot record
30414 157683
30414 157683
17% /boot
17% /boot
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