LVM again

[dens]

I tried to backup linux server (ubuntu-server 6.06) using LVM with no success. Well, Clonezilla offered to do it using dd which i did not want to accept..

Since it is a server, i cannot make breaks to often to test different options, but, with lvm tools that are available while uptime i got the following:

lvscan:
  ACTIVE            '/dev/disks/boot' [100.00 MB] inherit
  ACTIVE            '/dev/disks/usr' [5.00 GB] inherit
  ACTIVE            '/dev/disks/tmp' [2.00 GB] inherit
  ACTIVE            '/dev/disks/var' [20.00 GB] inherit
  ACTIVE            '/dev/disks/swap' [1.00 GB] inherit
  ACTIVE            '/dev/disks/treeroot' [46.43 GB] inherit

lvmdiskscan:

  /dev/ram0                     [       64.00 MB]
  /dev/dm                       [      100.00 MB]
  /dev/ram1                     [       64.00 MB]
  /dev/hda1                     [       74.53 GB] LVM physical volume
  /dev/disks/usr                [        5.00 GB]
  /dev/ram2                     [       64.00 MB]
  /dev/disks/tmp                [        2.00 GB]
  /dev/ram3                     [       64.00 MB]
  /dev/disks/var                [       20.00 GB]
  /dev/ram4                     [       64.00 MB]
  /dev/disks/swap               [        1.00 GB]
  /dev/ram5                     [       64.00 MB]
  /dev/root                     [       46.43 GB]
  /dev/ram6                     [       64.00 MB]
  /dev/ram7                     [       64.00 MB]
  /dev/evms/lvm2/disks/boot     [      100.00 MB]
  /dev/ram8                     [       64.00 MB]
  /dev/evms/lvm2/disks/swap     [        1.00 GB]
  /dev/ram9                     [       64.00 MB]
  /dev/evms/lvm2/disks/tmp      [        2.00 GB]
  /dev/ram10                    [       64.00 MB]
  /dev/evms/lvm2/disks/treeroot [       46.43 GB]
  /dev/ram11                    [       64.00 MB]
  /dev/evms/lvm2/disks/usr      [        5.00 GB]
  /dev/ram12                    [       64.00 MB]
  /dev/evms/lvm2/disks/var      [       20.00 GB]
  /dev/ram13                    [       64.00 MB]
  /dev/ram14                    [       64.00 MB]
  /dev/ram15                    [       64.00 MB]
  12 disks
  16 partitions
  0 LVM physical volume whole disks
  1 LVM physical volume

fdisk -l /dev/hda:
Disk /dev/hda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/hda1   *           1        9729    78148161   8e  Linux LVM

vgscan:
  Reading all physical volumes.  This may take a while...
  Found volume group "disks" using metadata type lvm2

vgdisplay:
  --- Volume group ---
  VG Name               disks
  System ID
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  7
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                6
  Open LV               6
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               74.53 GB
  PE Size               4.00 MB
  Total PE              19079
  Alloc PE / Size       19079 / 74.53 GB
  Free  PE / Size       0 / 0
  VG UUID               FQUpRb-S3JZ-Obrn-B2OO-7BGu-jwJx-cQaGpp

If there is any other check i can perform while online... i'll do it...

Regards,

[Steven Shiau]

1. Please use "/opt/drbl/sbin/dcs" to switch clients into remote-linux-txt mode,
2. PXE boot the client, login as root
3. cat /proc/partitions
4.
/opt/drbl/sbin/get_part_info /dev/disks/boot fs
/opt/drbl/sbin/get_part_info /dev/disks/usr fs
/opt/drbl/sbin/get_part_info /dev/disks/tmp fs
/opt/drbl/sbin/get_part_info /dev/disks/var fs
/opt/drbl/sbin/get_part_info /dev/disks/swap fs
/opt/drbl/sbin/get_part_info /dev/disks/treeroot fs

Please post the results of (3) and (4).

[dens]

Hm...

this could be a non easy task since i am using a liveCD version only.

Any other action i could take using tools available on live CD?

Should i add that i was able to create an image of centos server using LVM with no problem...

Regards

[Steven Shiau]

I thought you were talking about Clonezilla server edition. Never mind, actually you can just run the following in clonezilla live:
1.. cat /proc/partitions
2. 
/opt/drbl/sbin/get_part_info /dev/disks/boot fs
/opt/drbl/sbin/get_part_info /dev/disks/usr fs
/opt/drbl/sbin/get_part_info /dev/disks/tmp fs
/opt/drbl/sbin/get_part_info /dev/disks/var fs
/opt/drbl/sbin/get_part_info /dev/disks/swap fs
/opt/drbl/sbin/get_part_info /dev/disks/treeroot fs

Please do that then post the results.

[dens]

Well, there maybe some reason why LVM is not seen properly... or maybe not...

I saw the following line in lvscan output (and i am not happy about it):

ACTIVE '/dev/disks/boot' [100.00 MB] inherit

As one can see... boot partition is included in LVM and it shoud not be. That is a rule as i know. But, it is strange that Clonezilla could not see it as it reads the disk in more "passive" way than actual Linux OS when server is up and running.

Now i see why LILO is complaining that could not access some files...

Anyway... any idea, hint or trick how to move boot partition form LVM to physical?

May i resize existing partitions with GPARTED to obtain some 100MB for new physical /boot partition?

Regards,