Comment 45 for bug 97655

Aaaaah, I definitely see why you should never modify the config manually. Forgive me, after 2+ solid years running an Ubuntu box at home, I am still a complete n00b in many situations. This is actually my first time building a custom kernel. ;)

"RAID-4/RAID-5/RAID-6 mode" was already included and I have added "RAID 4/5 target (EXPERIMENTAL)" via menuconfig, as well as "Device mapper debugging support", just in case. Looks like now the config has everything it's supposed to. Whereas I was getting "# CONFIG_DM_RAID45 is not set" previously grepping the config, I now get...

root@IN-FS-N01:/usr/src/linux# grep RAID ./.config
[...cut...]
# Multi-device support (RAID and LVM)
[...cut...]
CONFIG_MD_RAID456=m
CONFIG_MD_RAID5_RESHAPE=y
CONFIG_DM_RAID45=m
[END]

And I no longer receive the warning, ".config:1380:warning: trying to reassign symbol DM_RAID45". ;-P Fantabulous! I'm in the process of compiling the kernel source now, and I will keep you posted on any updates. Thanks!