Re: [Clonezilla-live] Using CZ with Logocal Volumes

[Steven S. <st...@nc...>]

Johnny Stork wrote:
> Morning Steven. So I rebuilt the image/clone (disk to disk), and 
> notice very briefly while rebooting and exiting CZ, a brief message 
> scrolled past the screen indicating something about "Duplicate Volume 
> Group...." or something to that effect, it went by fast. But I guess 
> this is likely normal since the VG's on the source were duplicated on 
> the target?
After you cloned that, remove the original (source) disk, then reboot. 
Do not reboot with both of them attached.
Maybe doing so makes the system confused?
BTW, for LVM, disk to disk is really done by dd in Clonezilla, so it's 
very inefficient... If you can, maybe save the source disk as an image, 
remove the source disk, then restore the image to the new disk. Maybe 
this is faster.

Steven.
>
> I then disconnected the original source drives and booted from the 
> cloned drive alone in the system. Once again it kernel panicked and 
> could not find "VolGroup00"
>
> I then rebooted the CZ disk and went to the shell, and ran the following:
>
>
> pvscan:
>
> PV /dev/sda2 VG VolGroup 00 lvm2 [297.91 GiB /  0 free]
> Total:1 [297.91 GiB] / in use:1 [297.91 GiB] / in no VG: 0 [0  ]
>
> vgscan:
>
> Found Volume Group "VolGroup00" using metadata type lvm2
>
> lvscan
>
>
> ACTIVE    'dev'VolGroup00/LogVol00' [20.00 Gib] inherit
> ACTIVE    'dev'VolGroup00/LogVol02' [233.91 Gib] inherit
> ACTIVE    'dev'VolGroup00/LogVol03' [20.00 Gib] inherit
> ACTIVE    'dev'VolGroup00/LogVol01' [20.00 Gib] inherit
> ACTIVE    'dev'VolGroup00/LogVol04' [4.00 Gib] inherit
>
> On 4/11/2010 7:08 PM, Steven Shiau wrote:
>> How about if you boot Clonezilla live on the cloned machine, then run:
>> 1. sudo -i
>> 2. pvscan
>> 3. vgscan
>> 4. lvscan
>>
>> Please pot the results of 2, 3, and 4.
>>
>> Steven.
>>
>> On 2010/4/9 下午 10:55, Johnny Stork wrote:
>>> I have tried dd from a LIve Ubuntu disk, and now clonezilla-live to
>>> create an identical image of a RAID-1 array with 2 mirrored drives, 
>>> onto
>>> a single SATA drive. However, both methods still cant seem to boot and
>>> have trouble finding the logical volumes? Maybe I am not using 
>>> Clonzilla
>>> correclty, or its simply not possible. I would be so grateful if 
>>> someone
>>> could let me know if this is possible with clonezilla.
>>>
>>> Below is what I tried from the Ubuntu Live disk but I also tried with
>>> Clonezilla following the onscreen prompts.
>>>
>>> Niether method seems to be able to find the local volume/groups at 
>>> boot.
>>>
>>>
>>>
>>> I have a CentOS 5.4 server with a 3ware 9500 SATA Raid card with 2x320
>>> gb drives as RAID-1.
>>>
>>> Setup included logical volumes, physical drive is seen as /dev/sda
>>>
>>> This is what fdisk sees:
>>>
>>> root@gateway:~# fdisk -l
>>>
>>> Disk /dev/sda: 319.9 GB, 319988695040 bytes
>>> 255 heads, 63 sectors/track, 38903 cylinders
>>> Units = cylinders of 16065 * 512 = 8225280 bytes
>>>
>>>      Device Boot      Start         End      Blocks   Id  System
>>> /dev/sda1   *           1          13      104391   83  Linux
>>> /dev/sda2              14       38903   312383925   8e  Linux LVM
>>>
>>>
>>>
>>> What I am trying to do is remove the 3ware RAID and run the system 
>>> off a
>>> single 320gb SATA drive which is attached.
>>>
>>>
>>> So I plugged in a basic SiL Raid card with a single 320gb drive
>>>
>>> Booted Ubuntu Live  and old RAID-1 array on the 3ware card is seen as
>>> /dev./sdb
>>>
>>> The new, single 320gb drive seen as /dev/sda
>>>
>>>   From a terminal I ran
>>>
>>> dd if=/dev/sdb of=/dev/sda
>>>
>>> copy finished with no errors
>>>
>>> Unplugged the 2x320gb drives on the 3ware controller
>>>
>>> Booted system, grub loaded (giving me so much false hope)
>>>
>>> then, the boot failed at...
>>>
>>> Volume group "VolGroup00" not found
>>> unable to access resume device (/dev/VolGroup00/LogVol04)
>>> Mount: could not find filesystem '/devroot'
>>>
>>>
>>> So the problem seems to be that the LVM's are not seen?
>>>
>>> Is there another, or better way to make a compelte, and working mirror
>>> of a drive containing logical volumes?
>>>
>>>
>>> When I reboot back in the working system, with the RAID on the 3ware
>>> card, this is what both drives now look like to fdisk.
>>>
>>> root@gateway:~# fdisk -l
>>>
>>> Disk /dev/sda: 319.9 GB, 319988695040 bytes (3ware working RAID)
>>> 255 heads, 63 sectors/track, 38903 cylinders
>>> Units = cylinders of 16065 * 512 = 8225280 bytes
>>>
>>>      Device Boot      Start         End      Blocks   Id  System
>>> /dev/sda1   *           1          13      104391   83  Linux
>>> /dev/sda2              14       38903   312383925   8e  Linux LVM
>>>
>>> Disk /dev/sdb: 320.0 GB, 320072933376 bytes (Non-booting single 
>>> drive on
>>> Sil card)
>>> 255 heads, 63 sectors/track, 38913 cylinders
>>> Units = cylinders of 16065 * 512 = 8225280 bytes
>>>
>>>      Device Boot      Start         End      Blocks   Id  System
>>> /dev/sdb1   *           1          13      104391   83  Linux
>>> /dev/sdb2              14       38903   312383925   8e  Linux LVM
>>>
>>
>
>

-- 
Steven Shiau <steven _at_ nchc org tw> <steven _at_ stevenshiau org>
National Center for High-performance Computing, Taiwan.
http://www.nchc.org.tw
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