Clonezilla / Discussion / Help: convert qcow2 to Clonezilla image

Mircea Dan - 2016-05-09

so i have a test.qcow2 image

modprobe nbd max_part=63
qemu-nbd --connect=/dev/nbd0 /home/test/test.qcow2

now i have the nbd0 device working perfectley.
and i usualy use dd to write this image to a hdd
dd if=/dev/nbd0 of=/dev/sda bs=8M
but this takes time becuase the dd it's just doing bit by bit copy

now i would like to use clonezilla to create an disk to image and also do a disk to disk

if i start clonezilla /dev/nbd0 device is not seen. in the gui only /dev/sda is seen
if i use ocs-sr i get an error "no input device"

test@PC:~$ sudo ocs-sr savedisk test1.clz nbd0
Setting the TERM as xterm
Starting /usr/sbin/ocs-sr at 2016-05-09 15:11:50 PDT...
********.
Clonezilla image dir: /home/partimag*******.
Shutting down the Logical Volume Manager
Finished Shutting down the Logical Volume Manager
Selected device [nbd0] found!
The selected devices: nbd0
**********.
setterm: terminal xterm does not support --blank
Activating the partition info in /proc... done!
Selected device [nbd0] found!
The selected devices: nbd0
Searching for data partition(s)...
Excluding busy partition or disk...
Unmounted partitions (including extended or swap):
Collecting info. done!
Searching for swap partition(s)...
Excluding busy partition or disk...
Unmounted partitions (including extended or swap):
Collecting info. done!
The data partition to be saved:
The swap partition to be saved:
setterm: terminal xterm does not support --blank
Activating the partition info in /proc... done!
No input device!

test@PC:~$ sudo parted -s /dev/nbd0 print
Model: Unknown (unknown)
Disk /dev/nbd0: 494GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:

Number Start End Size Type File system Flags
1 1049kB 525MB 524MB primary fat16
2 525MB 1050MB 524MB primary ext4 boot
3 1050MB 34.6GB 33.6GB primary ext4
4 34.6GB 480GB 445GB extended
5 34.6GB 68.2GB 33.6GB logical
6 68.2GB 102GB 33.6GB logical ext4
7 102GB 480GB 378GB logical lvm

test@PC:~$ cat /proc/partitions
major minor #blocks name

1 0 65536 ram0
1 1 65536 ram1
1 2 65536 ram2
1 3 65536 ram3
1 4 65536 ram4
1 5 65536 ram5
1 6 65536 ram6
1 7 65536 ram7
1 8 65536 ram8
1 9 65536 ram9
1 10 65536 ram10
1 11 65536 ram11
1 12 65536 ram12
1 13 65536 ram13
1 14 65536 ram14
1 15 65536 ram15
8 0 156290904 sda
8 1 153163776 sda1
8 2 3125248 sda2
11 0 1048575 sr0
8 32 60653568 sdc
8 33 58061824 sdc1
8 37 2588672 sdc5
43 0 482344960 nbd0
43 1 512000 nbd0p1
43 2 512000 nbd0p2
43 3 32768000 nbd0p3
43 5 32768000 nbd0p5
43 6 32768000 nbd0p6
43 7 369518592 nbd0p7

test@PC:~$ blkid
/dev/sda1: UUID="c1e522a2-1941-47fb-967f-28da7b8f37ef" TYPE="ext4" PARTUUID="5251f42b-01"
/dev/sda2: UUID="ac9fbe8e-c4a9-4f35-938e-ebabeb71b3f7" TYPE="swap" PARTUUID="5251f42b-02"
/dev/sdc1: UUID="21c443e4-7ae1-4b37-a426-e9e5b497e162" TYPE="ext4" PARTUUID="461bb889-01"
/dev/sdc5: UUID="c8db8cde-9df5-4c93-8183-1f0f819364f3" TYPE="swap" PARTUUID="461bb889-05"

see also this i think same question was asked in teh past but has not been answered:
https://sourceforge.net/p/clonezilla/discussion/Help/thread/41850f6d/

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Steven Shiau - 2016-05-15

Good point. The device name /dev/nbd* is not supported by Clonezilla. We should add that in the future. However, if you can make your virtual disk as /dev/sd* format, the you can use Clonezilla without any issue.
For the time being, you can use partclone to specify the device you want to save. Partclone is very similar to dd, so I believe there is no problem for you to use that.

Steven

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Mircea Dan - 2016-05-16

If you have permision can you please add this feature request.
Thanks very much.

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Steven Shiau - 2016-05-21

OK, sure. In the future we will add that.
BTW, could you show me the whole command to start virtual machine?
Thanks.

Steven

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Mircea Dan - 2016-06-07

all you need is

modprobe nbd max_part=63 qemu-nbd --connect=/dev/nbd0 /home/test/test.qcow2

this will create /dev/nbd0 and from here just use clonezilla to clone or restore it like any other disk.

Last edit: Mircea Dan 2016-06-09
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Steven Shiau - 2016-06-13

OK, I will try to add support for nbd device in the future release.
Thanks.

Steven

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Steven Shiau - 2016-06-21

The device name /dev/nbd* is now supported in Clonezilla live 2.7.1 or 20160621-* .
http://clonezilla.org/downloads.php
Please give it a try and let us know the results.
Thanks.

Steven

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Mircea Dan - 2016-06-22

i tried device to device and i woudl say it worked. Thank you very much for implementing this.

1 issue i have to solve on my side is to make the lvm2 available in the nbd device and try again, curentley the lvm2 partition is copied with dd (not a clonezilla issue)

Last edit: Mircea Dan 2016-06-22

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Mircea Dan - 2016-06-23

ok debugged more and looks like a clonezilla problem, it fails to clone the LVM ( i used sda drive to eliminate any doubt on nbd/lvm combo) using the version specified by you above "20160621-* ."

clonezilla log:
/usr/sbin/ocs-sr -q2 -c -j2 -z1p -i 4096 -fsck-y -p choose savedisk test-img sda
......
Run partclone: partclone.ext4 -z 10485760 -N -L /var/log/partclone.log -c -s /dev/sda6 --output - | pigz -c --fast -b 1024 -p 16 --rsyncable | split -a 2 -b 4096MB - /home/partimag/test-img/sda6.ext4-ptcl-img.gz. 2> /tmp/split_error.Ncaz7o
Cloned successfully.
Checking the disk space...

Time elapsed: 99.20 secs (~ 1.653 mins)
********.
Finished saving /dev/sda6 as /home/partimag/test-img/sda6.ext4-ptcl-img.gz********.
Setting up the Logical Volume Manager
2 logical volume(s) in volume group "vg_01" now active
Parsing LVM layout for sda1 sda2 sda3 sda5 sda6 sda7 ...
vg_01 /dev/sda7 IG6O6X-LdCN-LVEw-RfGS-lY13-cR5u-H4UAfl
Parsing logical volumes...
/dev/vg_01/lv_home Linux rev 1.0 ext4 filesystem data, UUID=9b796507-03c0-4b08-a98f-3e9a5c6ee2fa (extents) (64bit) (large files) (huge files)
/dev/vg_01/lv_swap Linux/i386 swap file (new style), version 1 (4K pages), size 1048575 pages, no label, UUID=9f6db424-f55d-42b0-84a3-1dd552844a75
Saving the VG config...
Volume group "vg_01" not found
Cannot process volume group vg_01
Program terminated!.
Press "Enter" to continue......

test@test:~$ sudo -i
root@test:~# parted -s /dev/sda print
Model: ATA ST91000640NS (scsi)
Disk /dev/sda: 1000GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:

Number Start End Size Type File system Flags
1 1049kB 525MB 524MB primary fat16
2 525MB 1050MB 524MB primary ext4 boot
3 1050MB 34.6GB 33.6GB primary ext4
4 34.6GB 988GB 953GB extended
5 34.6GB 68.2GB 33.6GB logical
6 68.2GB 102GB 33.6GB logical ext4
7 102GB 988GB 886GB logical lvm

root@test:~# blkid
/dev/sda1: SEC_TYPE="msdos" UUID="A42A-0924" TYPE="vfat" PARTUUID="00092660-01"
/dev/sda2: UUID="10ff2b97-4d73-4a9d-849a-a9f0209bd5d2" TYPE="ext4" PARTUUID="000
/dev/sda3: UUID="738210cc-dec4-4bd0-8cd8-1b1e21b25e91" TYPE="ext4" PARTUUID="000
/dev/sda6: UUID="d2fee0d5-0943-457c-a3f3-d5430a6cd5e9" TYPE="ext4" PARTUUID="000
/dev/sda7: UUID="IG6O6X-LdCN-LVEw-RfGS-lY13-cR5u-H4UAfl" TYPE="LVM2_member" PART
/dev/sdb1: UUID="21c443e4-7ae1-4b37-a426-e9e5b497e162" TYPE="ext4" PARTUUID="461
/dev/sdb5: UUID="c8db8cde-9df5-4c93-8183-1f0f819364f3" TYPE="swap" PARTUUID="461
/dev/mapper/vg_01-lv_home: UUID="9b796507-03c0-4b08-a98f-3e9a5c6ee2fa" TYPE="ext
/dev/mapper/vg_01-lv_swap: UUID="9f6db424-f55d-42b0-84a3-1dd552844a75" TYPE="swa
/dev/sda5: PARTUUID="00092660-05"
root@test:~# pvscan
PV /dev/sda7 VG vg_01 lvm2 [825.27 GiB / 40.00 MiB free]
Total: 1 [825.27 GiB] / in use: 1 [825.27 GiB] / in no VG: 0 [0 ]
root@test:~# lvscan
ACTIVE '/dev/vg_01/lv_home' [821.23 GiB] inherit
ACTIVE '/dev/vg_01/lv_swap' [4.00 GiB] inherit
root@test:~#

Last edit: Mircea Dan 2016-06-23

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Steven Shiau - 2016-06-26

This is confusing. Why now your device name is sda instead of nbd?

Steven

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Steven Shiau - 2016-06-26

Oh, ok, just to test it. Next time please open another thread. Otherwise it's very confusing.

Steven

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convert qcow2 to Clonezilla image

A partition and disk imaging/cloning program

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convert qcow2 to Clonezilla image

convert qcow2 to Clonezilla image

A partition and disk imaging/cloning program

Forums

Help

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convert qcow2 to Clonezilla image