Opened 7 years ago

Closed 7 years ago

Last modified 7 years ago

#16564 closed defect (fixed)

Shared folder mount fails with "No such file or directory" after upgrade

Reported by: Aleko Owned by:
Component: guest additions Version: VirtualBox 5.1.16
Keywords: shared mount vagrant Cc:
Guest type: Linux Host type: Windows


I have a Windows 10 host and several Linux (mostly Ubuntu) virtual machines created by Vagrant. After upgrading from 5.1.14 to 5.1.16 shared folder mount stopped working:

# mount -t vboxsf vagrant /vagrant
/sbin/mount.vboxsf: mounting failed with the error: No such file or directory

I noticed that Vagrant registered shared folder paths in the following format:


As soon as I removed the leading "\\?\" from the path, the mount command worked again.

After downgrading back to 5.1.14, the mount works again without any issues, so this looks like a regression in 5.1.16.

Change History (7)

comment:1 by Socratis, 7 years ago

A quick search could have revealed the following:

  1. There is already an open ticket about this, #14651: Shared folders with long path are not mounted properly.
  2. There is already a fix in the test builds section (>= 113974). Give it a shot.

Duplicate of #14651.

comment:2 by Frank Mehnert, 7 years ago

Right. Thanks socratis.

comment:3 by Socratis, 7 years ago

Thanks for what? Not closing the ticket? Unfortunately I can't close the ticket, you can...

comment:4 by Frank Mehnert, 7 years ago

I will leave this ticket open until the new release is available. It is true that the same problem was reported in #14651 but I would have preferred to open a new ticket (like this one) instead of re-opening #14651.

comment:5 by Aleko, 7 years ago

Thank you! I did search for tickets but the problem was clearly a regression in the most recent version so I didn't even look at tickets opened against 5.0.4. Also, #14651 itself describes a completely different issue so I disagree it's a duplicate. Yes, the recent comments do bring up the new issue, but one wouldn't easily find those with a quick search.

comment:6 by Frank Mehnert, 7 years ago

Resolution: fixed
Status: newclosed

Fixed in VBox 5.1.18.

comment:7 by Aleko, 7 years ago

Cool, will check it out when I get a chance! There is a problem with the change log:

Shared Folders: fixed access to long pathes (5.1.16 regression; Windows guests only; bugs #14651, #16564)

Should it say "Windows hosts only"?

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