In the latest man pages I recently found: Since util-linux 2.35, mount does not exit when user permissions are inadequate according to libmount’s internal security rules. Instead, it drops suid permissions and continues as regular non-root user. This behavior supports use-cases where root permissions are not necessary (e.g., fuse filesystems, user namespaces, etc).
With this new rule the "regression" concerning `mount` is explainable. So please add a link to this note at the description of the `user(s)` options. Still existing: The buggy behaviour with `udisksctl mount`. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to util-linux in Ubuntu. https://bugs.launchpad.net/bugs/2055226 Title: mount option `users` blocks ntfs to mount Status in util-linux package in Ubuntu: New Bug description: /etc/fstab: # /media/Sicherung was on /dev/sda7 during installation UUID=2510AA16624BB80C /media/Sicherung ntfs defaults,users,noauto,windows_names,hide_dot_files 0 0 $ gio mount -d /dev/sda7 gio: /dev/sda7: Error mounting system-managed device /dev/sda7: Unknown error when mounting /media/Sicherung $ udisksctl mount -b /dev/sda7 Error mounting /dev/sda7: GDBus.Error:org.freedesktop.UDisks2.Error.Failed: Error mounting system-managed device /dev/sda7: Unknown error when mounting /media/Sicherung $ journalctl -b 0 -u udisks2.service Feb 27 23:48:51 T500 udisksd[10478]: Error opening read-only '/dev/sda7': Keine Berechtigung Feb 27 23:48:51 T500 udisksd[10478]: Failed to mount '/dev/sda7': Keine Berechtigung Feb 27 23:48:51 T500 udisksd[10478]: Please check '/dev/sda7' and the ntfs-3g binary permissions, Feb 27 23:48:51 T500 udisksd[10478]: and the mounting user ID. More explanation is provided at Feb 27 23:48:51 T500 udisksd[10478]: https://github.com/tuxera/ntfs-3g/wiki/NTFS-3G-FAQ This worked fine until Ubuntu 20.04, but since 22.04 I have these errors. Additionally, mount option `users` does not, what it should do: $ LC_ALL=C mount /media/Sicherung Error opening read-only '/dev/sda7': Permission denied Failed to mount '/dev/sda7': Permission denied Please check '/dev/sda7' and the ntfs-3g binary permissions, and the mounting user ID. More explanation is provided at https://github.com/tuxera/ntfs-3g/wiki/NTFS-3G-FAQ When removing `users` from /etc/fstab, it works fine: $ gio mount -d /dev/sda7 $ LC_ALL=C journalctl -b 0 -u udisks2.service Feb 28 00:05:31 T500 ntfs-3g[10977]: Version 2021.8.22 integrated FUSE 28 Feb 28 00:05:31 T500 ntfs-3g[10977]: Mounted /dev/sda7 (Read-Write, label "Sicherung", NTFS 3.1) Feb 28 00:05:31 T500 ntfs-3g[10977]: Cmdline options: rw,windows_names,hide_dot_files Feb 28 00:05:31 T500 ntfs-3g[10977]: Mount options: allow_other,nonempty,relatime,rw,fsname=/dev/sda7,blkdev,blksize=4096 Feb 28 00:05:31 T500 ntfs-3g[10977]: Ownership and permissions disabled, configuration type 7 Feb 28 00:05:31 T500 udisksd[583]: Mounted /dev/sda7 (system) at /media/Sicherung on behalf of uid 1000 So it seems, that option `users` virtually effectuates the opposite, than it is supposed to do. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/2055226/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
