> On Tuesday 11 December 2012 05:18 PM, J. Roeleveld wrote: >> >> Ouch, auto-detect does not work with metadata 1.2. >> Please read the man-page section: >> === >> --auto-detect >> Request that the kernel starts any auto-detected arrays. This can >> only >> work if md is compiled into the kernel - not if it is a module. Arrays >> can be auto-detected by the kernel if all the components are in >> primary MS-DOS partitions with partition type FD, and all use v0.90 >> metadata. In-kernel autodetect is not recommended for new >> installations. Using mdadm to detect and assemble arrays - possibly in >> an initrd - is substantially more flexible and should be preferred. >> === >> >> Please rebuild the raid-device using v0.90 metadata and try again. >> > > I never had mdadm running in boot runlevel and I don't have a modular > kernel. I have compiled everything into the kernel and hence no initrd > either as I said earlier. > > Raid autodetection seems to work even _without_ mdadm running. > > ------------------------------ > > [ 1.202481] md: Waiting for all devices to be available before > autodetect > [ 1.204268] md: If you don't use raid, use raid=noautodetect > [ 1.206201] md: Autodetecting RAID arrays. > [ 1.232482] md: invalid raid superblock magic on sdb1 > [ 1.234306] md: sdb1 does not have a valid v0.90 superblock, not > importing! > [ 1.263187] md: invalid raid superblock magic on sdd1 > [ 1.265034] md: sdd1 does not have a valid v0.90 superblock, not > importing! > [ 1.285106] md: invalid raid superblock magic on sdc1 > [ 1.286960] md: sdc1 does not have a valid v0.90 superblock, not > importing! > [ 1.288787] md: Scanned 3 and added 0 devices.
This clearly indicates that the "autostart" is not working > [ 3.087705] md/raid0:md0: md_size is 2266111488 sectors. > [ 3.087708] md: RAID0 configuration for md0 - 3 zones > [ 0.524821] ACPI: Invalid Power Resource to register! > [ 3.087711] md: zone0=[ > [ 3.087714] sdb1/sdc1/sdd1] > [ 3.087721] zone-offset= 0KB, device-offset= > 0KB, size= 468863328KB > [ 3.087723] md: zone1=[sdb1/sdc1] > [ 3.087730] zone-offset= 468863328KB, device-offset= > 156287776KB, size= 664191360KB > [ 3.087732] md: zone2=[sdb1] > [ 3.087737] zone-offset=1133054688KB, device-offset= > 488383456KB, size= 1056KB > > [ 3.087752] md0: detected capacity change from 0 to 1160249081856 > [ 3.098375] md0: unknown partition table Something found and started md0 after the autoraid-detect clearly failed. > Where did md0 come from if it was not setup by mdadm? What does "rc-status" show right after boot? -- Joost
