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Key installer functionality for F18: rescue mode, text/serial console mode

Hey, folks. Since there's been some discussion on test@ about
possibly-missing features with the f18 newUI transition, I wanted to
make sure we're all on the same page about what needs to be in for f18.

the two features QA was worried about missing are text mode
installation, and the rescue mode that's present on the DVD/netinst

on text install: apparently it's now the plan that a basic text mode
will be included in f18 and may even make Alpha. As long as that's a
commitment then that should work out fine and is no longer a worry.

on rescue mode: we would like to see a roughly functional equivalent
replacement for rescue mode present in f18, with considerable
flexibility as to the exact form.

as far as I can tell, these are the major features of rescue mode:

1) bring up network
2) mount installed system partitions
3) provide rescue shell with binaries from installed system in $PATH

it also has a 'diagnostics' thing, but that seems somewhat obscure - it
gives you a screen full of cryptic output when you run it, but that
output almost all appears to come from some sort of mdraid analysis
thingy. It doesn't seem to do much beyond that. Anyone have more details
on the 'diagnostics' feature and how it's supposed to work?

Anyway, diagnostics aside, it shouldn't be too much effort to implement
something that does 1, 2 and 3. One idea has been to make it as a module
for dracut. wwoods suggested "personally what I'd want to do is use
lorax and make a rescue runtime, or just add stuff to a rescue target in
the normal anaconda runtime". I'm not making any suggestion for what
method would be best - anything works so long as there's something =)

If anaconda team can commit to a rescue mode replacement for f18 final
at least, that'd be great. thanks. Also, if anyone's aware of any other
major functionality that might go away with newUI - besides what's
already been discussed or called out on the feature page - please let us
know. thanks!
Adam Williamson
Fedora QA Community Monkey
IRC: adamw | Twitter: AdamW_Fedora | identi.ca: adamwfedora

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