VirtualBox

Ticket #1890 (new defect)

Opened 6 years ago

VBoxHeadless does not set the user correctly when run from SysV init script

Reported by: greenpossum Owned by:
Priority: minor Component: VM control
Version: VirtualBox 1.6.2 Keywords: vboxheadless ipc username
Cc: Guest type: other
Host type: other

Description

I'm starting a VM from a Ubuntu init script which uses the helper program start-stop-daemon. Although I used the --chuid user option, the resulting instance of VBoxHeadless does not appear to know the username. In particular this affects the VBoxXPCOMIPCD service which created a directory called /tmp/.vbox--ipc (notice the empty string between the hyphens, normally when VBoxHeadless is started from a terminal, the directory is /tmp/.vbox-user-ipc). This means that VBoxManage cannot find the instance of the VM to send IPC to, for example, to send Ctrl-Alt-Del scancodes. Setting LOGNAME to the intended username seems to fix this, as in:

LOGNAME=user start-stop-daemon ...

The correct fix would be for the service to check its uid and map it back to the username.

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