Cannot refresh snaps if home is in NFS with root_squash

[Santiago Castro]

"snap refresh" fails to execute if /home is in an NFS with the root_squash option (comes by default) because it tries to update the /home/*/snap directory using the root user, which doesn't have permissions because of the option.

It could be worked around with no_root_squash, but this is insecure.

[Santiago Castro (bryant1410)]

I've found that if I move /home/*/snap outside NFS and make it a symlink, refresh works. However, running the snap doesn't: "cannot create user data directory: /home/[user]/snap/[snap_name]/[version]: Not a directory"

[Santiago Castro (bryant1410)]

I created a workaround in https://gist.github.com/bryant1410/93474806716eeff537257518842bcff1

[Zygmunt Krynicki (zyga)]

Dear reporter, can you please check if the issue persists? I recall that we switched snapd to use the identity of the user when operating on user files. Perhaps this is fixed now?

[Launchpad Janitor (janitor)]

[Expired for snapd because there has been no activity for 60 days.]