Re: RFC: proposal for handling isw dmraid -> mdraid upgrade path

[Bill Nottingham <notting redhat com>]

Hans de Goede (hdegoede redhat com) said: 
> I've been thinking about $SUBJECT lately, and I would like to propose the
> following way to handle this:
>
> 1) Make the use of mdraid or dmraid for BIOS-raid supported by both
>    configurable both in anaconda (it already is) and in the installed OS
>    (so in relevant udev rules and / or in rc.sysinit).
>
>    anaconda will have a cmdline option to override the defaults, and the
>    installed system will have a /etc/sysconfig/biosraid file, with a
>    single setting:
>    PREFERRED_BIOSRAID_HANDLER
>
>    Which can be either dmraid or mdraid

... why do we want to do this? Supporting two entirely separate code paths
for a single device is *bad*.

Bill