Difference between revisions of "HowTo Recreate Grub Install And The Master Boot Record (MBR) If Corrupted"
From NST Wiki
Jump to navigationJump to search| Line 10: | Line 10: | ||
/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: | ||
| Line 18: | Line 20: | ||
<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 ~]#
