I posted this issue first to http://scientificlinuxforum.org/index.php?act=ST&f=16&t=1803
Here is a copy/paste for your convenience: > I have been happily using SL 6.0 for about a year now, happily running on my > Mac in a Parallels Desktop virtual environment. > What works: > SciLinux 2.6.32-220.23.1.el6.i686 #1 SMP Mon Jun 18 09:58:35 CDT 2012 i686 > i686 i386 GNU/Linux > xorg-x11-server-Xorg Version : 1.10.6 Release : 1.sl6 > Parallels Desktop 7.0.15104(778994) > Mac OS X 10.6.8 (10K549) > > About 1 month ago, some updates were issued through one of > epel Extra Packages for Enterprise Linux 6 - i386 6,306 > rpmforge RHEL 6.0 - RPMforge.net - dag 4,448 > sl Scientific Linux 6.0 - i386 4,630 > sl-security Scientific Linux 6.0 - i386 - security updates 2,180 > to update the kernel, xorg, MySQL, and a few other applications. > > After a lot of trial and error, I have installed all updates except for: > > kernel.i686 2.6.32-279.1.1.el6 sl-security > kernel-devel.i686 2.6.32-279.1.1.el6 sl-security > kernel-firmware.noarch 2.6.32-279.1.1.el6 sl-security > kernel-headers.i686 2.6.32-279.1.1.el6 sl-security > xorg-x11-drv-ati-firmware.noarch 6.14.2-9.el6 sl-security > > If I install any of these updates, I can boot into single user just fine, but > the system hangs where the character graphics stop and the xorg graphics > normally begin. If Parallels sends a shutdown or reboot message, the system > shuts down normally most of the time so the kernel is not infinite looping > > /var/log/messages shows a variety of errors, usually after the system has > started shutting down but I don't entire trust them. > > I can live with this. I am mostly reporting it for the benefit of others, but > if some one has an idea, I would be interested. > > In the mean time, I am going to make a backup copy of the virtual disk, and > upgrade to SL6.2 just to see if that helps. and > After upgrading to SL 6.2, startup halts at the same place. > > In the /var/log/Xorg.0.log file, I see that the Parallels video driver > "prlvideo" cannot load because it includes an undefined symbol: > "miEmptyData". The Parallels mouse driver cannot load because of the > undefined symbol: "dixScreenOrigins". > > Then Xorg aborts because it cannot find any screens. I am not sure it is a SL bug. Parallels is known for being behind the cutting edge. But I don't think of SL as cutting edge either. I have also posted this to the Parallels support forum here: http://forum.parallels.com/showpost.php?p=633981&postcount=9 -=O=- Randy
