If i don't have raid disks can i shut down dmraid device-mapper?

system · April 8, 2011, 1:53pm

hello
my centOS newly installed system loading dmraid modules on startup
I did remove all LVM/raid things from system installation menus and after installation too but dmraid is still there
and he says: no raid disks found

also I did modprobe -r dm_raid45 and it do remove it but only until next boot

I've add to /etc/modprobe.d/blacklist string "blacklist dm-raid45" (it's file name with - not _)but it still loading on startup..

so my question is: how to remove this useless soft(or fake)raid thing from the system? from loading?

Corona688 · April 8, 2011, 4:23pm

Is an extra line on bootup really that important to you? These things are loaded on boot to make the system more flexible and really aren't a drain on resources; you could do more harm than good digging deep enough to remove it that completely.

system · April 9, 2011, 4:07am

in that case it, of course, not necessary
but what flexible in the raid when there's no raid?

Corona688 · April 11, 2011, 11:22am

It allows you to use RAID disks without having to hand-edit your system configuration files beforehand. This is not a particularly easy thing to do. If you change your mind now, you'll probably have to undo all the work you did.

system · April 13, 2011, 6:40am

which work? i've done NO work with raids at all

Corona688 · April 13, 2011, 11:12am

I'm just saying why work so hard to break something that was difficult to make?

system · April 13, 2011, 12:32pm

what was 'difficult to make' ?

Corona688 · April 13, 2011, 1:05pm

Getting RAID to properly autodetect isn't trivial, which is probably why they decided to get that working for them if anyone needed it.