RE: Is it possible to lvrename the current root partition?

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]



Alfred von Campe wrote:
> 
> I'd like to rename my existing volume groups and logical volumes (I  
> picked names a long time ago I no longer like :-).  I recently  
> stumbled across the lvrename and vgrename commands, but when I tried  
> the former to rename the logical volume that my root partition  
> resides on, the system became unbootable.
> 
> In addition to renaming the LV (and VG if I decide to to that as  
> well), what else needs to be changed?  So far my list includes:
> 
>    o /etc/fstabb
>    o /boot/grub/grub.conf
>    o /dev/<vgname>/<lvnamex>
>    o /dev/mapper/<vgname-lvnamex>
> 
> I was hoping the lvrename and/or vgrename would take care of these  
> details.  Are there any scripts out there that take care of all the  
> details?  If not, I may write one (once I have the recipe to get this  
> working, of course).

Sure you can do all this from rescue mode off the first CD.

Boot the cd type in 'linux rescue' and continue to the command prompt.

At the command prompt:

1) make sure swap isn't using the swap lv
	- swapoff -a

2) unmount all lvs mounted
	- umount /mnt/sysimage/boot
	- umount /mnt/sysimage

3) mark all lvs as unavailable
	- lvchange -a n <vgname>

4) rename the volume group
	- vgrename <oldvgname> <newvgname>

5) rename the logical volumes
	- lvrename <vgname>\<oldlvname> <newlvname>

6) repeat #5 as necessary

7) re-activate all the lvs
	- lvchange -a y <vgname>

8) re-mount the root and boot lvs,
	- mount /dev/<vgname>/<rootlv> /mnt/sysimage
	- mount /dev/<vgname>/<bootlv> /mnt/sysimage/boot

9) chroot to the mounts with, 'chroot /mnt/sysimage /bin/bash'

10) edit /etc/fstab

11) edit /boot/grub/grub.conf

That should do it.

-Ross

______________________________________________________________________
This e-mail, and any attachments thereto, is intended only for use by
the addressee(s) named herein and may contain legally privileged
and/or confidential information. If you are not the intended recipient
of this e-mail, you are hereby notified that any dissemination,
distribution or copying of this e-mail, and any attachments thereto,
is strictly prohibited. If you have received this e-mail in error,
please immediately notify the sender and permanently delete the
original and any copy or printout thereof.

_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
http://lists.centos.org/mailman/listinfo/centos

[Index of Archives]     [CentOS]     [CentOS Announce]     [CentOS Development]     [CentOS ARM Devel]     [CentOS Docs]     [CentOS Virtualization]     [Carrier Grade Linux]     [Linux Media]     [Asterisk]     [DCCP]     [Netdev]     [Xorg]     [Linux USB]
  Powered by Linux