Public bug reported:
Binary package hint: base-installer
Using Edgy to build a couple servers, amd64 and i386... found that I
had to fool around in a shell to adjust the chunksize of the RAID 5
arrays I built on these servers, and also found that mdadm is being
called without the --assume-clean flag when telling the installer to
create new file systems on the array, which does not bypass array
reconstruction (which is very annoying). The last bit is problematic
because when it tells you to reboot and you do it, the arrays will start
reconstruction all over again after reboot, slowing down the whole
install process.
It would be extremely helpful to be prompted for chunksize, with a blurb
of course that says if you don't know what this is for, just use the
default (64). I have big arrays that work much better (30-40% faster)
with 256 chunksize and would have preferred not having to shell out and
umount/mount stuff and continue.
** Affects: base-installer (Ubuntu)
Importance: Undecided
Status: Unconfirmed
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Initial install, RAID; use --assume-clean with mdadm, and prompt for chunk size
https://launchpad.net/bugs/77470
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