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Old 03-23-2006, 12:42 AM   #1
Registered: Dec 2005
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FC5 disbale device mapper during install


I'm trying to install Fedora Core 5, but it thinks my harddrives are a raid 0 array and mounts them with device mapper.

I have a gigabyte 8inxp board with a onboard promise ide raid controller and that seems to be the problem.

Well however, I have disabled controller in bios and my harddrives ( 2 x 40GB Maxtor) are connected to normal onboard ide controller. But when I start install, it always shows me some devicemapper device with my harddrives put together as a raid 0 array. Switching to a console, and using fdisk -l it shows me my two harddrives with their partitions correct.

So how can I disable devicemapper and tell the installer that I have just two normal ide hdds?

I also tried to put the drives on the onboard raid controller and setting it up to run in ata mode in BIOS, but no success.
Old 04-06-2006, 03:15 PM   #2
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Do you need both drives connected during you install? If not, unplug one of them (be sure to remove both the drive connector and power cable) and install to the other one. You can always change the udev configuration files (and fstab) later, after you finish the install.
Old 05-06-2006, 10:43 AM   #3
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I am trying to install FC5 on a Gigabyte 7VRXP with a Promise IDE RAID controller, which was managing my 2xMaxtor 120GB disks as 2 separate IDE drives. I had heard that the Promise controller was a bit cheap and nasty, and so didn't care much anyway for the onboard RAID function. FC4 installs just fine - and sees the 2 disks as such (hde hdg). FC5 only sees them as a single RAID0 array irrespective of the BIOS setting for the Promise controller. However, after installation, the boot to GRUB just hangs at:


(if the controller is set to ATA)
If the controller is set to RAID, then the boot partition is recognised, Grub boots, but the kernel can't mount the drive and fails with a kernel panic (after many lines saying Buffer I/O error on logical block...)

So - someone at Fedora has broken the install process for FC5 when compared to FC4 for these types of controllers.



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