From: birnenkram@posteo.de
To: virtio-fs@redhat.com
Subject: [Virtio-fs] write permissions for Windows host on Linux guest
Date: Sun, 24 Oct 2021 06:24:33 +0000 [thread overview]
Message-ID: <5e79ba8579b33e60e9670f2fd99b1c1b@posteo.de> (raw)
Hello list,
thanks for a great project which will simplify my workflow a lot once I
get everything working.
I am trying to share a folder from an Ubuntu 20.04.3 host with a Windows
10 build 19042 (20H2) guest, using QEMU 5.2 / libvirt 7.0.0 on the host
and virtio-win 0.1.208 (driver 100.85.104.20800 and associated virtiofs
service) on the guest. I got the Windows drivers from
https://github.com/virtio-win/virtio-win-pkg-scripts/blob/master/README.md
(stable virtio-win ISO).
So far I am able to read files in this host folder without problems from
the guest. However I can only create/write/delete files on the host if
I use a shell (Windows CMD or Cygwin bash) with *Administrator*
rights on the guest
OR
I change the folder permissions on the host, giving write
permissions to "other". Neither of these options is acceptable as a
permanent solution.
I already toyed with various settings for "user" in
/etc/libvirt/qemu.conf, including root and the user owning the shared
folder (myself), without success. I struggle to understand what
ultimately determines the write permissions on the host folder. I had
assumed this to be related to the UID of one of the hypervisor
processes, so I do not see why running as Administrator or not on the
guest should make a difference. Also, virtiofsd seems to be running as
root anyway, so should have the necessary permissions. There's no
SELinux on my system.
My Windows and Linux user names are different. I don't know if that
matters, and whether the software attempts to map the two (as Cygwin
does).
Do you have any ideas what the problem could be? I have seen various
users reporting issues with write permissions from Windows guests in the
recent past, but no solution which would solve the issue for me.
Best regards, Michael
next reply other threads:[~2021-10-24 6:24 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-24 6:24 birnenkram [this message]
2021-10-24 6:40 ` [Virtio-fs] write permissions for Windows host on Linux guest birnenkram
2021-10-24 8:58 ` birnenkram
2021-10-25 13:16 ` Vivek Goyal
[not found] ` <0c4d0bb990217000fe24f4a8522dcfa3@posteo.de>
2021-10-25 17:32 ` Vivek Goyal
2021-10-25 17:52 ` birnenkram
2022-05-06 7:23 ` Nyquist
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5e79ba8579b33e60e9670f2fd99b1c1b@posteo.de \
--to=birnenkram@posteo.de \
--cc=virtio-fs@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.