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somebears
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Joined: 22 Feb 2012
Posts: 3

PostPosted: Tue Oct 29, 2013 9:01 am    Post subject: Gentoo hardened as KVM guest Reply with quote

Hello :)
I am trying to install gentoo hardened on a KVM Vserver. I did switch to the hardened toolchain und did a whole system rebuild. So far everything worked without a problem. The only problem is, when I use the hardened kernel, the system does not boot.
There is no output into logfiles, nor can I see the output at boottime.
I tried various .configs; one with gernkernel, one 99% copied from the working vanilla-kernel and one made from scratch. same result

Does anyone have any experience witch such issues? Do you want all the .config files?

[Edit:] sorry, got cut off there!
As previously stated, I have no issues at all, when I am using the vanilla kernel. But using the hardened kernel, even with all the "hardened stuff" disabled results in an unbootable system. I think one of the secutity patches conflicts with my system. Is there any way to find out, what it is?
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nix213
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Joined: 08 Feb 2013
Posts: 23
Location: Illinois

PostPosted: Tue Oct 29, 2013 12:06 pm    Post subject: Reply with quote

This may be a long shot, but I was looking at this page over here ("Setting up grsecurity + gentoo in a VM"), and noticed this part:
Quote:
Make sure you disable Paravirtualized guest support under Processor type and features in any case. Enabling that causes the system to not boot.

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somebears
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Joined: 22 Feb 2012
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PostPosted: Thu Oct 31, 2013 8:37 am    Post subject: Reply with quote

Thanks for sour reply!

The option was disabled in all my Kernels :/

I tried a never version of hardened-sources, no improvement

I will reinstall my system once again tomorrow.... maybe it helps
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Hu
Watchman
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Joined: 06 Mar 2007
Posts: 8592

PostPosted: Thu Oct 31, 2013 9:40 pm    Post subject: Reply with quote

If the system boots correctly under vanilla, then the problem is almost certainly related to the hardened kernel itself. A full system reinstall is unlikely to fix things. Please try to obtain the boot output.
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