[linux-lvm] won't dual boot: 2 disks and LVM

[cs]

On Tue, 2007-12-18 at 17:02 -0600, Chris Cox wrote:
> On Tue, 2007-12-18 at 14:28 +0000, michael wrote:
> > I'm looking for a solution for (re-)installing WinXP on my slave disk
> > when I have Fedora and LVM on the master disk. In the past I've opened
> > up the box and unplugged the Fedora/LVM disk in order for WinXP to
> > install okay. But this seems much too drastic. Even swapping disk order
> > (in BIOS) doesn't help - WinXP installation sits there "forever" when
> > checking current config.
> > 
> > Whilst I cannot find any definite reference stating "MS WinXP cannot
> > handle LVM" it does seem to be the culprit. 
> > 
> > Anybody got any such definitive references or other help?
> 
> Do the "remove the Linux disk and move he XP disk" technique
> you mentioned to install WinXP onto
> what it believes will be the primary disk.... then...
> 
> Then switch things to put the Linux drive back as the
> primary and the WinXP as the secondary.
> 
> You can try something like this inside of grub.  Notice the
> map commands in particular.
> 
> title WinXP
> map (hd0) (hd1)
> map (hd1) (hd0)
> root (hd1,0)
> savedefault
> makeactive
> chainloader +1
> 
> Let us know if this works for you.

It doesn't! This is exactly what I tried and it just hangs...