Can a VM be copied and ran on same server?

[tmoran000]

Is it possible to make a copy of a VM that I have and run it as a second VM?, I have this VM set up and is working flawless and would like to make a copy of it and run a second VM for other tasks. is this possible?

[bigwah]

cp --reflink /path/to/vdisk.img /path/to/snapshot.img

I use this method to have essentially 3 VMs running at the same time but not using 3 times as much space, since they are all identical windows VMs.

 

Edited January 6, 2019 by bigwah

[tmoran000]

I will give this a try, Thanks!

 

 

[tmoran000]

I get this when running command in Terminal

 

root@Tower:~# cp --reflink /mnt/disks/Samsung_SSD_850_EVO_500GB_S3PTNB0J938117M/Win7-Distro/vdisk1.img

/mnt/disks/Samsung_SSD_850_EVO_500GB_S3PTNB0J938117M/Win7-FTP/snapshot.img

cp: failed to clone '/mnt/disks/Samsung_SSD_850_EVO_500GB_S3PTNB0J938117M/Win7-FTP/snapshot.img' from '/mnt/disks/Samsung_SSD_850_EVO_500GB_S3PTNB0J938117M/Win7-Distro/vdisk1.img': Operation not supported

[david279]

I think cp --reflink can only be done of btrfs volumes. Is the operation taking place on a btrfs formatted drive?

[tmoran000]

I have no clue, Its a mounted SSD, XFS

 

 

[JorgeB]

39 minutes ago, david279 said:

I think cp --reflink can only be done of btrfs volumes.

Correct, it won't work on an XFS formatted drive.

[bigwah]

9 hours ago, johnnie.black said:

Correct, it won't work on an XFS formatted drive.

Definitely needs to be BTRFS to work.

 

This link is where I pulled that command from.  Pretty sure when I first added the cache drives I added them specifically as BTRFS to utilize that command.