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I'm trying to install Ubuntu server on a R210 with a S100 raid controller. It's a software controlled RAID, and it's not recognized in Ubuntu. So I guess I have to disable it and use the software raid provided in Ubuntu (mbabm).

I'm a bit lost about the process. In the BIOS, I can select RAID or AHCI. I don't know which one to choose. Then in the booting, I can press CTRL+R to access the RAID options. Should I use the nonRaid option again there ?

It seems that the appropriate driver (mtp2sas) is not present on the server version. So I have downloaded the desktop version, on which I'll add the ubuntu-server package. Am I right there ? Should I follow this procedure to configure the raid ? (

Thank for your guidance !

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As Hubert said, I disabled the Raid option and created a software RAID during the installation. After first restart, I get an error message, saying mounting /dev/disk/by-uuid/[...] on /root failed. – Jonathan Sep 30 '10 at 11:42
The bug is explained here: - to fix it, partitions have to be installed manually, with some space left on each disk. – Jonathan Sep 30 '10 at 11:59
up vote 1 down vote accepted

The RAID/AHCI setting is for the controller integrated in the mainboard, not the add-on card.

And yes, you need to disable all RAID settings in the add-on card, this way it should be seen as a simple SATA controller which are supported in linux. The howto you provided should guide you through the configuration.

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So the first setting (RAID/AHCI) has no influence whatsoever on my configuration ? – Jonathan Sep 30 '10 at 8:47
Yes, in fact, most mainboards from linux perspective don't behave differently with RAID and AHCI setting. Though it's better to leave this setting at AHCI, just to be safe. – Hubert Kario Sep 30 '10 at 9:04
Thanks for the advice ! – Jonathan Sep 30 '10 at 10:09

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