Linux Volume Manager [LVM] on DietPi?

Troubleshooting
1

I’d like to use my Rock64 as a file repository by attaching an external SSD to the USB3 interface.

And, for a couple of different reasons, I would like to allocate space on the external SSD using the Linux Volume Manager [LVM].

  1. Is LVM supported by DietPi?
  2. What are the recommendations for using LVM on DietPi?

I only ask because I noticed that LVM doesn’t seem to be an option that’s available in dietpi-software or dietpi-drive_manager. But it is available via APT.

TIA,

2

FWIW: Installation was a breeze…

dietpi@DietPi:~$ sudo apt install thin-provisioning-tools lvm2
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following additional packages will be installed:
  dmeventd libaio1 libdevmapper-event1.02.1 liblvm2cmd2.03 libreadline5
The following NEW packages will be installed:
  dmeventd libaio1 libdevmapper-event1.02.1 liblvm2cmd2.03 libreadline5 lvm2 thin-provisioning-tools
0 upgraded, 7 newly installed, 0 to remove and 1 not upgraded.
Need to get 2,090 kB of archives.
After this operation, 8,324 kB of additional disk space will be used.
Do you want to continue? [Y/n]

And LVM seems to work as it usually does…

dietpi@DietPi:~$ sudo pvcreate /dev/sda1
WARNING: ext4 signature detected on /dev/sda1 at offset 1080. Wipe it? [y/n]: y
  Wiping ext4 signature on /dev/sda1.
  Physical volume "/dev/sda1" successfully created.

dietpi@DietPi:~$ sudo vgcreate Rock64 /dev/sda1
  Volume group "Rock64" successfully created

dietpi@DietPi:~$ sudo lvcreate -L 100G -n WD500 /dev/Rock64
  Logical volume "WD500" created.

dietpi@DietPi:~$ sudo pvs
  PV         VG     Fmt  Attr PSize    PFree   
  /dev/sda1  Rock64 lvm2 a--  <465.73g <365.73g

dietpi@DietPi:~$ sudo vgs
  VG     #PV #LV #SN Attr   VSize    VFree   
  Rock64   1   1   0 wz--n- <465.73g <365.73g

dietpi@DietPi:~$ sudo lvs
  LV    VG     Attr       LSize   Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  WD500 Rock64 -wi-a----- 100.00g

In conclusion: It seems to “work right out of the box”! I’ll put it through a few paces and report back!

3

I did a LVM test installation in the past. Some information on this post https://dietpi.com/forum/t/2nd-usb-drive/4582/2