Feizhou wrote: >>>> Is there a way to get it to use the raid that's part of the bios >>>> chip? >>> >>> Repeat after me. There is no raid that is part of the bios chip. It >>> is just a simple table. >> Yes, I know this is fakeraid, aka softraid, but I was hoping that >> using the drivers would make it easier to support raid 10 then with >> mdadm, which seems to be impossible to get to work with the >> installer. I'm not even sure why the raid10 personality is not >> loaded, as it seems to have been part of the mdadm since version 1.7. > > I don't know about a raid10 personality but on boxes I used to run, I > had raid1 and raid0 personalities loaded... According to this, as well as other sources, the raid10 personality should be in the kernel by now: http://cgi.cse.unsw.edu.au/~neilb/01093607424 I do have raid1 and raid0 personalities, but I can't seem to combine them in the way that the installer would let me install on it. I did 2 drives in md11 as raid1 2 drives in md12 as raid1 md11 and md12 in md10 as raid0 Anaconda only sees md11 and md12 I can set up LVM on top of md11 and md12. Is that really raid10 though? >>>> Something about device mapper? >>> >>> >>> You need the fake raid driver dmraid if you are going to set up >>> stuff in the bios. What version of centos are you trying to install? >>> libata in Centos 5 should support this without having to resort to >>> the ide drivers. >>> _________________________________ >> I'm trying to install centos 5 - the latest. How would I go about >> using dmraid and/or libata? The installer picks up the drives as >> individual drives. There is a drive on the silicon image website, >> but it's for RHEL4, and I couldn't get it to work. I'm open to using >> md for raid, or even LVM, if it supports it. I just want to be able >> to use raid10, as I can't trust raid5 anymore. > > There you go. The installer picks up the drives individually so the > installation process treats them as such but the raid bios does not > and so leads to booting problems. Just blow the raid array configured > in the si311x bios the thing should be able to boot. Check also your > motherboard bios settings too. > _______________________________________________ I will try this. I do know it loads up the SIL3112 driver during the installation process. Is this only so it can read the drives? I though the whole process was transparent and didn't need special drivers if it's just seeing them as single drives? Russ