Burn a VM disk from raw image

O

oknet

Member
Oct 13, 2022
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Outside VE I write my image file directly into disk to obtain a fresh working linux machine:
Code: 
dd if=myfile.img of=/dev/sdx

Is it possible to do the same using a mounted usb storage as source and a Virtual Machine disk as target ?
Pratically speaking, to create a VM (not yet started) with disk cloned from image.

Thanks
 
I've mounted my USB disk on /mnt/disk
I've created a VM with a 46GB scsi0 disk seen as: local-zfs:vm-100-disk-0,iothread=1,size=46G
then I issued the command
dd if=/mnt/disk/myimage.img of=/dev/rpool/data/vm-100-disk-0 status=progress
It completes without issues but disk vm-100-disk-0 is not bootable or mountable neither.....

What's wrong ?
 
Code: 
fdisk -l /dev/rpool/data/vm-100-disk-0

Disk /dev/rpool/data/vm-100-disk-0: 46 GiB, 49392123904 bytes, 96468992 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 8192 bytes
I/O size (minimum/optimal): 8192 bytes / 8192 bytes

nothing more.

Well.... it seems no partition or anything written/created.....

Perhaps of=/dev/rpool/data/vm-100-disk-0 is a wrong target or syntax ?
 
/dev/rpool/data/vm-100-disk-0 is a link to /dev/zd0, which is a block device:

ls -l /dev/zd0
brw-rw---- 1 root disk 230, 0 Nov 29 09:52 /dev/zd0
 
fdisk -l /mnt/disk/pbx/fpbx.img

GPT PMBR size mismatch (488397167 != 83154943) will be corrected by write.
Disk /mnt/disk/pbx/fpbx.img: 39.65 GiB, 42575331328 bytes, 83154944 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00000000

Device Boot Start End Sectors Size Id Type
/mnt/disk/pbx/fpbx.img1 1 83154943 83154943 39.7G ee GPT
 
That image with that error works works flawlessly with dd if= of= to produce a working physical disk
I'll correct it anyway...
 
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