I was checking the patch, In the vanilla kernel 3.11.6 the symbols have changed
Symbol: MD_RAID456 [=m] │ Type : tristate │ Prompt: RAID-4/RAID-5/RAID-6 mode │ Location: │ -> Device Drivers │ -> Multiple devices driver support (RAID and LVM) (MD [=y]) │ -> RAID support (BLK_DEV_MD [=y]) │ Defined at drivers/md/Kconfig:121 │ Depends on: MD [=y] && BLK_DEV_MD [=y] │ Selects: RAID6_PQ [=m] && ASYNC_MEMCPY [=m] && ASYNC_XOR [=m] && ASYNC_PQ [=m] && ASYNC_RAID6_RECOV[=m] │ Selected by: DM_RAID [=m] && MD [=y] && BLK_DEV_DM [=y] and on the mainline 3.12-rc6 there are some modifications to raid5 https://www.kernel.org/diff/diffview.cgi?file=%2Fpub%2Flinux%2Fkernel%2Fv3.x%2Ftesting%2Fpatch-3.12-rc6.xz;z=3624 building a mainline 3.12-rc6 kernel package to see if any of the changes, bring my raid5 back online -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1241086 Title: dmraid-4-5 is not built for Saucy Status in “linux” package in Ubuntu: Fix Committed Status in “linux” source package in Saucy: Fix Committed Bug description: dm-raid45 depended on EXPERIMENTAL which was removed in 3.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1241086/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp