Unable to mount a filesystem (loop device)

[kwyjibos]

Steps to reproduce;
1: Create a raw file with dd;
dd if=/dev/zero of=/tmp/test bs=1M count=200
2: Make an ext4 partion on the raw file
mkfs.ext4 /tmp/test
3: Make a mount point
mkdir /mnt/test
4: Mount the new file
mount -t ext4 /tmp/test /mnt/test

Expected result
Device is mounted

Actual Result
mount: Could not find any loop device. Maybe this kernel does not know about the loop device? (If so, recompile or 'modprobe loop'.)

If you do try to 'modprobe loop', you get the following;
modprobe: ERROR: ../libkmod/libkmod.c:556 kmod_search_moddep() could not open moddep file '/lib/modules/3.4.0+/modules.dep.bin'

Though I would not expect modprobe to work based on the implementation anyway, i've added the result for reference.

[sunilmut]

mounting is currently not supported and something that we are aware of. We will be looking at the User Voice page to prioritize what features to light up next. So, please do provide your feedback there as well.

[SamSaffron]

+1 this is a huge blocker for me... was looking at a way of working around very slow filesystem in ubuntu on windows but am blocked on mounting my raw file

[maaatts]

Could we get FUSE support?

[ptitSeb]

Mounting a cifs share doesn't seems possible either.

[Adraesh]

I confirm mount cifs is not working with the actual 14901 build.

[bitcrazed]

Thanks for your feedback on this, but supporting FUSE is not on our immediate roadmap. Closing for now.

If you'd like us to reconsider, please find/upvote this issue on UserVoice and share a little background on your scenarios.

[ptitSeb]

This ticket was not really about FUSE, but about the inability to mount filesystem. FUSE was just a potential workaround.

[bitcrazed]

Understood - but mounting removable/external storage devices, network drives, drive images, etc. are not planned at this time.

[WSLUser]

@sunilmut or @bitcrazed Quite a bit has changed since this last statement. We have any idea about when this can be looked at or if it currently is and what the timeline of that (a haphazard guess) is?

[bitcrazed]

Hey @DarthSpock - no news to report as yet. Do follow Tara on Twitter - if and when there's news on this front, you'll likely see it there first ;)

[stijnherreman]

I guess this will work out of the box with WSL 2?

[jmiahman]

I guess this will work out of the box with WSL 2?

It does not.. at least for loop support.

[felipecrs]

This would be super helpful for dealing with Android system images.

[DjArt]

So, when it will be implemented in WSL1?