Score:2

Why do I appear to have lots of Snap mount points when I don't even use Snap?

mp flag

I am a long time Ubuntu user who regularly updates my OS after a new release has been available for a while. I recently updated this laptop to 21.10, having installed incrementally from 16.10 when it was brand new.

During an idle moment I looked at the directory system under the system profiler and was surprised to see so many mount points for Snap, all with "100.00% (0.0 Byte(s) of XXX MB) and all with a mount point on /dev/loopX" see screenshot.

Whatever does this mean? I have never knowingly installed a snap application.

Screenshot

Edit: There is an answer to my question below which I have accepted. However if you prefer to delete the question please just go ahead and do that.

ChanganAuto avatar
us flag
Newer releases have some snaps by default. In 21.10 even Firefox is a snap but if upgraded from a previous release then it's still deb.
mp flag
Yes, but what does "100.00% (0.0 Byte(s) of 219.0 MB)" even mean? How can 0.0 Bytes of 219MB be 100% ?. It doesn't make any sense to me.
mp flag
@mook765 This answers my question. if you submit as an answer I will mark it as such.
vanadium avatar
cn flag
@N0rbert I consider it intellectually
Score:4
cn flag

Depending on your Ubuntu version and flavour some applications in your system are installed as snaps by default.

A snap is a single file which contains a filesystem (squashfs), this filesystem is mounted in a way similar to block devices and it is always mounted read-only.

Since it's mounted read-only, you can not save any data in this filesystem, it's always 100% full with 0 bytes free space available. That's what is displayed in your screenshot, usage in percent and available space in bytes.

mangohost

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