executables changing permissions while running

Discussions about using Linux guests in VirtualBox.
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CptnPancakes
Posts: 1
Joined: 3. Jul 2019, 22:36

executables changing permissions while running

Post by CptnPancakes »

I am running a centos 7.6 guest on a windows host. When trying to run multiple instances of any executable from a shared folder (to include shell scripts) the first one will start but then change the permissions on itself such that a second attempt to start fails. This only occurs on executables in the shared folder between windows and centos. If I move the executables on to the guest partition then I am able to run multiple instances simultaneously without issue. Has anyone else experienced this problem or know of a solution?
socratis
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Posts: 27330
Joined: 22. Oct 2010, 11:03
Primary OS: Mac OS X other
VBox Version: PUEL
Guest OSses: Win(*>98), Linux*, OSX>10.5
Location: Greece

Re: executables changing permissions while running

Post by socratis »

VirtualBox's Shared Folders present a very simplified file system implementation, just enough to read/write files from/to the guest. Many applications can error when using Shared Folders, because they expect advanced features, for example file locking, access controls, etc., which don't exist as a concept for Shared Folders.

I would use a a true network share (SaMBa).
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