[SLL] Etch install: "waiting for root file system" post-inst with I2O RAID

[Rob Smith]

On 8/21/07, Glenn Stone <technoshaman at liawol.org> wrote:
> Really?  When did that change?  I'd always thought that it had to map swapfs
> to whatever filesystem you were running on, and that slowed it down...
>
> Interesting.  How would one set that up during an install?
>
> -- Glenn

The during the middle of the 2.5.x kernels, so anything newer then say
2.6.0 will be this way.

"The kernel generates a map of swap offset -> disk blocks at swapon
time and from then on uses that map to perform swap I/O directly
against the underlying disk queue, bypassing all caching, metadata and
filesystem code."

see:
http://www.kerneltraffic.org/kernel-traffic/kt20050828_319.html#3
or for the full thread
http://groups.google.com/group/fa.linux.kernel/browse_thread/thread/801af09eaf08147c/926b53e8dcf0a11a?hl=en#926b53e8dcf0a11a

For installs, you just really can't right now. What I do is just skip
all swap during the install and then set it up by hand. it's really
not all that hard to do, and saves me headaches in the long run.

~Rob