My new notebook came from the factory with Windows 8 on two 128GB SSDs in RAID 0 mode. I wanted to dual boot it with a Linux distro, I settled on Debian, so I resized my C: drive as one normally would to free up some space for the Linux install. I installed from debian-live-7.8.0-amd64-kde-desktop which runs on Linux kernel 3.2.0-4. I initially followed these instructions on Debian wiki for installing on SataRAID aka BIOS RAID.

I deviated from the instructions on the wiki in step 8, as the Debian rescue install console did not give me the option to mount and use /dev/dm-? as the root fs and I needed to set up Debian to boot in UEFI mode via Ubuntu Live anyway, primarily using instructions in this video, which basically involve using Ubuntu to mount the Debian filesystem, mounting the EFI partition in the Debian file system, then bind mounting /dev/, /dev/pts, /proc/, and /sys, and finally chroot to the Debian directory to update the sources.list and updating all of Debian's packages.

Lastly, apt-get install --reinstall grub-efi followed by install-grub /dev/mapper/isw_<somechars>_Volume1 to make sure to use the raid volume and not /dev/sdx.

So now I am able to boot into Grub but when I select Debian it fails to load, giving me 'Gave up waiting for root device' error, and claiming the 'isw_...' disk does not exist. Can anyone offer some guidance on how to troubleshoot further? I also was not clear about a line on the original page I linked that says, "install Debian as usual, until you get to the disk partitioner. You will see your fake RAID as one disk with a confusing long name. Use it as if it were a single disk and configure your partitions any way you want, including LVM and friends." What does it mean by "including LVM and friends? Did I need to explicitly make the drive an LVM drive when I performed the partitioning during the original install? Any help would be appreciated. Thanks!

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