[PATCH] Grub2 cannot find LVM volume groups with a dash (-) in the name

[Felix Zielcke]

I still can't see any use in this `escape a dash with a dash because we
use a dash to seperate the vg part from the lv one' from LVM.
As I already wrote, grub-probe works fine if you remove that double
escaping from the file name and remount it.
LVM (lv* vg* commands) shouldn't use the filename to get the vg and lv
part ...

fz-vm:/dev# lvdisplay
  --- Logical volume ---
  LV Name                /dev/m-y--vg/l-vol--0
  VG Name                m-y--vg

lvdisplay is even showing the unescaped directory + symlink

Well attached is now my cute little asprintf patch with a very ugly LVM
part.

It works for

volumegroup: linuxvg
logicalvolume: lvol0
/dev/mapper/linuxvg-lvol0

volume group: m-y--vg
logical volume: l-vol--0
/dev/mapper/m--y----vg-l--vol----0


Please comment this, please give me hints how to make it better.
I don't like the code myself but it seems like we should handle this
double dash problem :(

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