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Old 07-21-2010, 09:50 AM   #1
GreeNix
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Raid problem with Ubuntu 8.04


I'm attempting to install Ubuntu 8.04 on an old Iomega StorcenterPro 200r (NAS server with 4 disks). The problem that I'm having is that during the installation the partitioner doesn't see the RAID array, it only sees the individual disks. I've attempted to rebuild the array with different configurations; Mirror, Stripe, Stripe w/ Parity, etc but it only ever sees the individual disks. I can install on one of the disks but when the installation reboots it won't boot unless I go into the BIOS and take the controller out of RAID mode and put it in IDE or AHCI mode.

I know that Iomega uses somewhat proprietary hardware but at its core it uses a 3.2Ghz Celeron D processor, 945G chipset and Intel ICH7R RAID controller (firmware v5.6.2.1002)

Additionally, I'm building this server to play around with Zimbra mail server and it needs Ubuntu 8.04. However I could also use Fedora 11 or Debian 5 if either of those would work better.

Any suggestions would be appreciated - Thanks!
 
Old 07-21-2010, 10:03 AM   #2
alli_yas
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Registered: Apr 2010
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Distribution: Fedora 14, RHEL 5.5, CentOS 5.5, Ubuntu 10.04
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Quote:
the RAID array, it only sees the individual disks
This is actually correct for a HW RAID controller. You should have a BIOS for the controller; and should configure your disks into a RAID configuration first; and then do your Linux installation.

Post install; certain controllers do have utilities (HP Smart Array is one example) for Linux for you to make changes via the command line.

Lastly is there a particular reason for installing 8.04? I would recommend you go with the latest 10.04 if possible since it would be the most secure for you at this stage.
 
Old 07-21-2010, 10:21 AM   #3
GreeNix
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Thanks for the fast reply.

Quote:
Originally Posted by alli_yas View Post
This is actually correct for a HW RAID controller. You should have a BIOS for the controller; and should configure your disks into a RAID configuration first; and then do your Linux installation.
Right, I've gone into the BIOS of the RAID controller and attempted to rebuild the array a with different configurations (stripe, mirror, stripe+parity) to no avail. The installer only sees in the individual disks, not the single RAID'd disk. And this is with the "RAID" mode option selected in the BIOS.

Quote:
Originally Posted by alli_yas View Post
Post install; certain controllers do have utilities (HP Smart Array is one example) for Linux for you to make changes via the command line.
I've seen post-install utilities for Server class controllers, but I don't think this is applicable for a consumer grade RAID controller.

Quote:
Originally Posted by alli_yas View Post
Lastly is there a particular reason for installing 8.04? I would recommend you go with the latest 10.04 if possible since it would be the most secure for you at this stage.
From my original post:
"Additionally, I'm building this server to play around with Zimbra mail server and it needs Ubuntu 8.04. However I could also use Fedora 11 or Debian 5 if either of those would work better."
 
Old 07-21-2010, 10:25 AM   #4
alli_yas
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Well that certainly is weird. If you have 2 disks for example, configured as a RAID 1 mirror; the installer should only see a single device (well that's what I came across in my experience).

Maybe check out the controller manual for anything that relates to this - Good Luck
 
Old 07-21-2010, 10:49 AM   #5
GreeNix
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Ugh, it's a compatibility problem.

From Intel:
"Beginning with Linux* kernel version 2.6.18*, the dmraid* utility 1.0.0-rc15 supports RAID 0, RAID 1, and RAID 10.
Beginning with Linux kernel version 2.6.27*, the mdadm* utility 3.0 supports RAID 0, RAID 1, RAID 10, and RAID 5."
http://www.intel.com/support/chipset.../cs-020663.htm

I believe that Ubuntu 8.04 uses a 2.6.24 kernel, dmraid 1.0.0-rc14 and mdadm 2.6.3

I can't find a package list for Fedora 11 that actually has the version #s of the packages it includes, but 11 does have the 2.6.29 kernel so hopefully dmraid and mdadm should be upgraded accordingly.
 
  


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