[Bug 301028] Re: Cannot set resolution higher than 800x600 when running Jaunty Jackalope through VirtualBox

[Alain Kalker]

Ok, after some searching, I think I've found the source of the problem:
VBoxClient failed to start at login, probably because it couldn't access
/dev/vboxadd, which is only accessible by root:root.

>From the VirtualBox site and changelog.Debian.gz I gathered that
VirtualBox 2.0.0 and up are built with 'hardening' enabled by
default[1]. which requires all binaries to be setuid root. Changing the
VBoxClient to be setuid root and restarting the guest solved my problem.

[1]: See configure, lines 68, 2131-2149
...

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Cannot set resolution higher than 800x600 when running Jaunty Jackalope through VirtualBox
https://bugs.launchpad.net/bugs/301028
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