unique disk and partition identifiers please

Is your feature request related to a problem? Please describe.

AFAIK There is a chance that the drive numbering changes between boots. The current --mount uses \.\PHYSICALDRIVE[X] ( --partition [Y] )to identify a drive (partition). But the PHYSICALDRIVE can change between boots and this make scripting more involved.

Describe the solution you'd like

Make a mount option that can use some form of disk identifier - a serialnumber, UUID or Label.

Something like:

 wsl --mount --UUID a8feece7-338d-4efa-b90b-5de44564cb0d --type ext4
 wsl --mount --UUID 432d7059-2211-4c37-ad13-a24ff60d38ff --type ext4

Maybe that is allready a routine task for the advanced windows user, but I need some help figureing out how to script adding the right partitions to WSL.

I do:

wsl --mount \\.\PHYSICALDRIVE8 --partition 1 --type ext
wsl --mount \\.\PHYSICALDRIVE9 --partition 1 --type ext

and so far, they keep their numbering between boots - but is that guaranteed ?

Here's what I have in Ubuntu Linux

jpn@pc01:~$ sudo lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
sda      8:0    0 363.1M  1 disk
sdb      8:16   0     8G  0 disk [SWAP]
sdc      8:32   0     1T  0 disk /var/lib/docker
                                 /mnt/wslg/distro
                                 /
sdd      8:48   0   7.3T  0 disk
└─sdd1   8:49   0   7.3T  0 part /mnt/wsl/PHYSICALDRIVE8p1
sde      8:64   0   7.3T  0 disk
└─sde1   8:65   0   7.3T  0 part
jpn@pc01:~$ sudo blkid /dev/sdd
/dev/sdd: PTUUID="e44f910e-5225-0841-bb2b-156c3c0f796b" PTTYPE="gpt"
jpn@pc01:~$ sudo blkid /dev/sdd1
/dev/sdd1: LABEL="ZCT1HV6A" UUID="a8feece7-338d-4efa-b90b-5de44564cb0d" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="eb686024-df27-443c-9d6c-e2faf47cf523"
jpn@pc01:~$
jpn@pc01:~$
jpn@pc01:~$ sudo blkid /dev/sde
/dev/sde: PTUUID="41e34ee0-52e7-43e9-800a-0b97ebcf759c" PTTYPE="gpt"
jpn@pc01:~$ sudo blkid /dev/sde1
/dev/sde1: LABEL="ZCT31MZ2" UUID="432d7059-2211-4c37-ad13-a24ff60d38ff" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="43cc75e2-75a3-439b-a2b8-1623230aefa6"

and I can use the UUID's in my fstab (see man page)
and the UUID can be changed using tune2fs (see man page)

Start from the wsl --mount command and the current PHYSICALDRIVE and --partition arguments described in the issue. Compare the available disk identifiers—UUID, PARTUUID, serial number, and label—using the shown blkid and fstab examples, then define and implement stable identifier-based selection while preserving filesystem type and partition support. Done means the same disk or partition can be mounted reliably after drive numbering changes.