For whatever reason I find that seeing gaps in IDs between VMs annoying. I don't like seeing gaps such as:
VM100 - 100
VM101 - 101
VM103 - 103
VM104 - 104Thankfully there's a bit of a way to adjust the IDs for VMs. I would recommend taking a backup of the VM and it's configuration file(s) beforehand. Once you're ready you can run the following command to display information about your logical volumes.
lvs -aThis should display something similar to:
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
vm-100-disk-0 data -wi-ao---- 120.00g
vm-101-disk-0 data -wi-ao---- 80.00g
vm-101-disk-1 data -wi-ao---- 120.00g
vm-102-disk-0 data -wi-a----- 120.00g
vm-103-disk-0 data -wi-ao---- 80.00g
vm-104-disk-0 data -wi-ao---- 80.00g
vm-105-disk-0 data -wi-ao---- 320.00g
vm-105-disk-1 data -wi-ao---- 120.00g
vm-105-disk-2 data -wi-ao---- 120.00g
vm-106-disk-0 data -wi-ao---- 80.00g
vm-107-disk-0 data -wi-ao---- 120.00g
data pve twi-a-tz-- 59.66g 0.00 1.59
[data_tdata] pve Twi-ao---- 59.66g
[data_tmeta] pve ewi-ao---- 1.00g
[lvol0_pmspare] pve ewi------- 1.00g
root pve -wi-ao---- 27.75g
swap pve -wi-ao---- 8.00g Next, determine which VM you're wanting to change the ID of. In the following commands I will be changing the VM ID of 101 to 100.
MAKE SURE TO SHUTDOWN THE VM BEFORE RUNNING ANY OF THESE COMMANDS!!!
This command will update the name of the logical volume:
lvrename data/vm-101-disk-0 vm-100-disk-0Next we want to update the ID in the VMs configuration file:
sed -i "s/101/100/g" /etc/pve/qemu-server/101.confAfter that we want to rename the VMs configuration file:
mv /etc/pve/qemu-server/101.conf /etc/pve/qemu-server/100.confOnce those commands have been run you can start the VM up again.
This is a companion discussion topic for the original entry at https://jimmyb.ninja/post/1619122070