Am 07.02.2016 um 22:00 schrieb Bear Tooth: > [Follow-ups set to gmane.linux.centos.general] > > My wife had been running CentOS 6.4 almost since > its inception; then her PC broke down. > > We got a PC from System76, and Ubuntu turned out > utterly unsuitable for us, as expected -- as bad > for us as Gnome3. (I had previously bought a System76 > net book (starling iirc), and immediately installed the > then current Fedora; all has been well with that. > > This time, alas!, I thought I should let her try Ubuntu; > so I tried running it myself for an houror two > to get it set up and tweaked. > > I couldn't even find any of the apps I wanted to tweak! > So I put in an install disk for CentOS, and rebooted. > > It never came near finishing the reboot. Up popped the > following: > > > Detected CPU family 6 model 94. > > Warning: Intel CPU model -- this hardware has not > undergone upstream testing. Please see > > http://wiki.centos.org/FAQ for more information. > > tsc: Fast TSC calibration failed. > > I have consulted that FAQ and more, and also System76's. > I've consulted and tried more other things than most of you > likely want to hear about. No joy. > > I've also tried rebooting without any install disk, with a > Fedora install disk, with various helps such as super grub disk, > and finally even with DBAN. > > The machine doesn't even find any of those. On any reboot, it > just goes to that CentOS error message, and stops. > > I've also googled for '"upstream testing" hardware' > > Any thoughts or experience??. > > Did you try adding to the kernel line the parameter "clocksource=tsm" or "clocksource=acpi_pm"? Alexander