[SOLVED] Convert LVM to vmdk

[cosmos]

Hello all,

I've got a VM running on LVM storage. The storage is /dev/vmstorage/vm-102-disk-0. I want to convert this to vmdk for import to an ESXi 7.0U1 host. What/which commands can I use to get this done as fast as possible?

The VM is down, so there is no issue copying storage to vmdk. Searching around I've found a solution involving two steps: first use dd to copy the image to a raw file and then use qemu-img to convert it to vmdk (not sure about the options to use in the latter case).

Is there a single command that can accomplish both steps above?

TIA!

 

[Tux_1024]

Hey cosmos,

did you already tried the following via CLI?:

qemu-img convert -p $INPUTDISK -O $FORMAT -o subformat=streamOptimized $NEWDISK

qemu-img convert -p /dev/vmstorage/vm-102-disk-0 -O vmdk -o subformat=streamOptimized /tmp/ExportedDisk-0.vmdk

-p stands for Progress,
-O specifies the output format
-o is for use of an dynamic allocated image

hope i could help

 

[cosmos]

I tried that, it failed with
qemu-img: Could not open '/dev/vmstorage/vm-102-disk-0': Could not open '/dev/vmstorage/vm-102-disk-0': No such file or directory

Any other idea on using qemu-img to convert LVM block storage to vmdk?

EDIT: Strike that out, on another LVM image it works just fine. I'll have to figure out what is wrong here...

 

[cosmos]

I still can't figure how I can convert this LVM image. Doing an lvdisplay it shows it alright:

 --- Logical volume ---
  LV Path                /dev/vmstorage/vm-106-disk-1
  LV Name                vm-106-disk-1
  VG Name                vmstorage
  LV UUID                P3284v-yK3v-GSWf-QbOf-fH5Q-8a8m-FzO2EC
  LV Write Access        read/write
  LV Creation host, time pve-1, 2018-03-06 14:40:42 +0200
  LV Status              available
  # open                 1
  LV Size                20.00 GiB
  Current LE             5120
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:3



# ls -laF /dev/vmstorage/vm-106-disk-1
lrwxrwxrwx 1 root root 7 May 26 09:33 /dev/vmstorage/vm-106-disk-1 -> ../dm-3
# ls -laF /dev/dm-3
brw-rw---- 1 root disk 253, 3 May 26 10:18 /dev/dm-3

Ideas?

 

[cosmos]

Searching around, it seems that creation of these links are made by udev. I restarted the pve node and the links got recreated alright.