On 21.12.20 13:45, Laszlo Ersek wrote:
On 12/21/20 13:06, Max Reitz wrote:
I can share sshfs through sshfs, so it must be something virtiofs-specific.
Your insight proved crucial to solving the riddle.
Chaining sshfs with sshfs made me think that you must have used a normal
(non-root) user account on the first remote computer (where you ran the
2nd sshfs command).
And that reminded me of the "allow_root" option which I seemed to have
read somewhere around the FUSE manuals.
Oh, that makes sense. Right.
So indeed I set up another sshfs mount on my laptop, with my normal UID,
and tried to access the mount point from a plain root shell (with
virtiofsd completely out of the picture) -- it failed with "Permission
denied". :) It's apparently intentional on sshfs's / FUSE's part, to
protect the local root user from "remote nastiness injection".
Then I re-did the sshfs mount, but with "-o allow_root" this time. The
plain root shell can now access the mount point.
Indeed, that works better.
... So can virtiofsd :) It's *amazing* to see remote files in the UEFI
shell. I never thought "filesystem as a service" could feel this empowering.
Thanks, Max!
Er, *cough*, my pleasure! O:)
Max
