[gentoo-user] Filesystem failure

[Willie Wong]

The root partition on my laptop just crapped out today. The kernel
logs report a problem with reiserfs. Reiserfsck suggests
--rebuild-tree, which AFAICT has a rather non-zero failure rate. So I
am getting myself mentally prepped for the perhaps necessary
re-install. 

I would appreciate greatly if people can offer me some advice/caveats
of any sort with regards to my plan. 

The run-down of the state of my laptop:

  1. Luckily/unluckily, I had separate partitions for /var and /home,
  neither of which seems to be affected (I need to still run smartctl
  and reiserfsck to verify that).
  2. It seems that the damage is limited to /usr (which is not mounted
  separately, so is a sub-directory of /)

The plan would be to bootstrap the system using a liveCD, I seem to
already have a workable /var (and hence an okay edb/cache and world
file), does it sound workable to just 
  a) get portage, system, toolchain running
  b) emerge -e world
?

Assuming my /etc isn't hosed, the system should still be bootable, if
I recover all the right files, right?

Thanks, 

Willie


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