Arch Linux

obitori

Member

Registered: 2014-12-27

Posts: 3

Arch kernel can't see my fakeraid SSD raid array

FakeRAID SSD Raid0 array as it appears in Ubuntu 14.10:

crw-------  1 root root  10, 236 Dec 27 09:22 control
brw-rw----  1 root disk 252,   1 Dec 27 09:22 isw_dcggggdbfb_SDDraidDrive
brw-------  1 root root 252,   0 Dec 27 09:22 isw_dcggggdbfb_SDDraidDrive1
brw-------  1 root root 252,   2 Dec 27 09:22 isw_dcggggdbfb_SDDraidDrive2
brw-------  1 root root 252,   3 Dec 27 09:22 isw_dcggggdbfb_SDDraidDrive9

I believe that I am running into the problem described here:

https://wiki.archlinux.org/index.php/In … _Fake_RAID which says that the module for fakeraid is no longer part of the bootable CD kernel.  I am guessing that this might hold true for the installed kernel too?

However, after googling various solutions, I realized that the generally recommended solution (using mdadm to make the raid0 drive) would mean reinstalling my other partitions and leave my laptop SSD unable to hold a Windows partition at a later date if work so requires.

I am able to chroot into Arch Linux using the instructions for a live linux install from Ubuntu and create my Arch linux partition on the SSD with no problem.  https://wiki.archlinux.org/index.php/In … ting_Linux

The Ubuntu grub-update script sees the Arch Linux partition and creates a grub entry for it.  When I try to boot into Arch, however, it fails.  The problem seems to be that the Arch kernel cannot see the FakeRAID SSD drive and cannot mount it.  I get a UUID not found error.  I am wondering if there is a kernel config option that I could add to the grub entry to boot it.  Alternatively, could I put a /boot partition on a regular sda hard drive and mount / from the SSD?  Any tips or help would be greatly appreciated.

Here is some additional technical specs for my Segar laptop:

00:1c.3 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #4 (rev d5)
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM87 Express LPC Controller (rev 05)
00:1f.2 RAID bus controller: Intel Corporation 82801 Mobile SATA Controller [RAID mode] (rev 05)
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 05)

Obitori