Many thanks for reporting. I will take a look.

	Urs



On 05/29/2015 02:28 AM, ToddAndMargo wrote:
> Dear Live DVD developers:
>
> I installed SL7.1 as a VM from SL6.6 KVM using
> SL-71-x86_64-2015-03-27-LiveDVDgnome.iso
>
> The Nitrogen menuentry in grub.cfg causes a kernel
> panic (the rescue modes do work after fixing a typo).
>
> kernel panic:
>
>        Failed to access perfctr msr (MSR c1 is 0)
>        kernel panic -- not syncing:L VFS: Unable to mount root fs on
> unknown-block(0,0)
>
>
> This issue its corrected by the following change and addition
> in /boot/grub2/grub.cfg "Nitrogen menuentry".
>
> Old:
>      linux16 /vmlinuz-3.10.0-229.1.2.el7.x86_64 root=/dev/sda2 ro rhgb quiet LANG=en_US.UTF-8
>
>
> New:
>      linux16 /vmlinuz-3.10.0-229.1.2.el7.x86_64 root=/dev/sda2 ro quiet LANG=en_US.UTF-8
>      initrd16 /initramfs-3.10.0-229.1.2.el7.x86_64.img
>
>
> To summarize:
>     on the "linux16" line, I dropped "rhgb"
>     and I added an "initrd16" line under the "linux16" line
>
> Many thanks,
> -T
>
>
>