On 05/22/2015 07:06 PM, ToddAndMargo wrote:
> Hi All,
>
> I am trying to run 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)
>
> Anyone know what is wrong with this menuentry?
>
> Many thanks,
> -T
>
>
>
> menuentry 'Scientific Linux 7.1 (Nitrogen), with Linux
> 3.10.0-229.1.2.el7.x86_64' --class fedora --class gnu-linux --class gnu
> --class os --unrestricted $menuentry_id_option
> 'gnulinux-3.10.0-229.1.2.el7.x86_64-advanced-562d91f4-7086-451e-abc1-870f59bf3c41'
> {
>      load_video
>      set gfxpayload=keep
>      insmod gzio
>      insmod part_msdos
>      insmod xfs
>      set root='hd0,msdos1'
>      if [ x$feature_platform_search_hint = xy ]; then
>        search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1
> --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1'
>   1d99df0a-09aa-40b8-88a3-67c0c31c4dbf
>      else
>        search --no-floppy --fs-uuid --set=root
> 1d99df0a-09aa-40b8-88a3-67c0c31c4dbf
>      fi
>      linux16 /vmlinuz-3.10.0-229.1.2.el7.x86_64 root=/dev/sda2 ro rhgb
> quiet LANG=en_US.UTF-8
> }
>

Figured it out.

In the Nitogen menuentry, I made this change (linux16) and addition 
(initrd16):

#	linux16 /vmlinuz-3.10.0-229.1.2.el7.x86_64 root=/dev/sda2 ro rhgb 
quiet LANG=en_US.UTF-8
	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

[editorial comment] AAAAAAAAAAAAAHHHHHHHHHHH!!!!![/editorial comment]

-T

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