Hi,
since i read this post while i was playing with my own O2 and was able to test things out, let me be (un)helpfull.
there is in fact a sort of live cd for sgi, the Gentoo Mips live cd. just google for it. it works great on my O2. just hit esc for maintenance and install from cd.
the only problem is is that it won't mount the xfs disks, wich makes it completly useless for your problem.
i seem to remember that i once mounted an xfs disk on a pc, booting from a recent knoppix live cd. but i could be mistaken.
this post has some info about mounting xfs under linux.
http://forums.gentoo.org/viewtopic-t-24 ... 39fef8376b
so, my post is not very helpfull i'm afraid, although the gentoo boot cd might give you some info about the system.
but, since i'm swapping disks in my O2 as well i'd be mo than happy to try stuff out for you.
or, if you happen to be close to wellington, new zealand you should stop by and we could try to tackle this dragon together
)
my suggestion to get root (as was probably mentioned before)
- attach te disk to another sgi machine as second disk adn reset root passwd
- attach disk to pc, boot knoppix and reset passwd
- i'm not sure what the dd would acomplish that you would not get from physically moving the disk?
thijs