fix: return all partitions in linux, regardless of mount status

[SunPodder]

fix #1181

It lists all the actual disks in the first place, so pseudo fs checks can be avoided altogether.

[GuillaumeGomez]

Here's a part of the output on my computer:

Disk("/dev/loop30")[FS: "squashfs"][Type: SSD][removable: no] mounted on "/snap/core20/2264": 0/67108864 B
Disk("/dev/loop0")[FS: "squashfs"][Type: SSD][removable: no] mounted on "/snap/amberol/30": 0/6291456 B
Disk("/dev/loop10")[FS: "squashfs"][Type: SSD][removable: no] mounted on "/snap/core22/1122": 0/77856768 B
Disk("/dev/loop14")[FS: "squashfs"][Type: SSD][removable: no] mounted on "/snap/firefox/3972": 0/281411584 B
Disk("/dev/loop13")[FS: "squashfs"][Type: SSD][removable: no] mounted on "/snap/firefox/3941": 0/280494080 B
Disk("/dev/nvme0n1p1")[FS: "vfat"][Type: SSD][removable: no] mounted on "/boot/efi": 521060352/535805952 B
Disk("/dev/loop9")[FS: "squashfs"][Type: SSD][removable: no] mounted on "/snap/core22/1033": 0/77725696 B
Disk("/dev/nvme0n1p3")[FS: ""][Type: SSD][removable: no] mounted on "": 0/0 B
Disk("/dev/loop22")[FS: "squashfs"][Type: SSD][removable: no] mounted on "/snap/just/1": 0/1441792 B
Disk("/dev/loop25")[FS: "squashfs"][Type: SSD][removable: no] mounted on "/snap/quadrapassel/483": 0/655360 B
Disk("/dev/nvme0n1")[FS: ""][Type: SSD][removable: no] mounted on "": 0/0 B
Disk("/dev/loop15")[FS: "squashfs"][Type: SSD][removable: no] mounted on "/snap/gnome-3-38-2004/140": 0/366739456 B
Disk("/dev/loop4")[FS: "squashfs"][Type: SSD][removable: no] mounted on "/snap/chromium/2805": 0/168427520 B
Disk("/dev/dm-2")[FS: ""][Type: SSD][removable: no] mounted on "": 0/0 B

It's definitely not actual disks, just all FS.

[SunPodder]

Sorry I wasn't aware that /proc/partitions also contains loop devices. Fixed it.

[GuillaumeGomez]

Now my disk isn't listed anymore and I have:

Disk("/dev/nvme0n1p1")[FS: "vfat"][Type: SSD][removable: no] mounted on "/boot/efi": 521060352/535805952 B
Disk("/dev/nvme0n1p2")[FS: "ext4"][Type: SSD][removable: no] mounted on "/boot": 400248832/737214464 B
Disk("/dev/loop8")[FS: ""][Type: SSD][removable: no] mounted on "": 0/0 B
Disk("/dev/loop4")[FS: ""][Type: SSD][removable: no] mounted on "": 0/0 B
Disk("/dev/dm-2")[FS: ""][Type: SSD][removable: no] mounted on "": 0/0 B
Disk("/dev/loop24")[FS: ""][Type: SSD][removable: no] mounted on "": 0/0 B
Disk("/dev/loop15")[FS: ""][Type: SSD][removable: no] mounted on "": 0/0 B
Disk("/dev/loop3")[FS: ""][Type: SSD][removable: no] mounted on "": 0/0 B
Disk("/dev/loop13")[FS: ""][Type: SSD][removable: no] mounted on "": 0/0 B
Disk("/dev/loop10")[FS: ""][Type: SSD][removable: no] mounted on "": 0/0 B