Difference between revisions of "HowTo Recreate Grub Install And The Master Boot Record (MBR) If Corrupted"
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/dev/sdb1 198337 22358 165739 12% /boot | /dev/sdb1 198337 22358 165739 12% /boot | ||
tmpfs 1419416 0 1419416 0% /dev/shm | tmpfs 1419416 0 1419416 0% /dev/shm | ||
+ | [root@probe ~]# | ||
</pre> | </pre> | ||
</div> | </div> | ||
+ | |||
* '''2)''' Unmount "'''/boot'''" if currently mounted: | * '''2)''' Unmount "'''/boot'''" if currently mounted: | ||
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<pre class="computerOutput"> | <pre class="computerOutput"> | ||
/dev/sdb1 umounted | /dev/sdb1 umounted | ||
+ | [root@probe ~]# | ||
</pre> | </pre> | ||
</div> | </div> |
Revision as of 18:43, 25 October 2009
This HowTo shows the steps one can used to recreate a corrupt "grub" boot loader and/or MBR on an NST system. Start by booting up "NST Live" or "NST" on a "USB Flash Drive".
- 1) Make sure there is not a mount using the "/boot" mount point:
[root@probe ~]# df
Filesystem 1K-blocks Used Available Use% Mounted on /dev/mapper/vg_probe-lv_root 235338552 4335136 228613664 2% / /dev/sdb1 198337 22358 165739 12% /boot tmpfs 1419416 0 1419416 0% /dev/shm [root@probe ~]#
- 2) Unmount "/boot" if currently mounted:
[root@probe ~]# umount -v /boot
/dev/sdb1 umounted [root@probe ~]#