See if its mounted/etc first, if not: mdadm -S /dev/md0 (stop it) Then try again. On Sat, 14 Oct 2006, Ray Greene wrote: > I am having problems creating a RAID 5 array using 3x400GB SATA drives > on a Dell SC430 running Xandros 4. > > I created this once with Webmin and it worked OK but then I deleted it > and started again as I believe the chunk size was too small at 4kb, > the default size with Webmin. > > I have repartitioned and formatted the drives. I have tried creating > the array with Webmin and at the console but it always fails with the > same error. > > This is the command I use: > mdadm --create --verbose /dev/md0 --level=raid5 --chunk=256 --run > --raid-devices=3 /dev/sdb1 /dev/sdc1 /dev/sdd1 > > mdadm: layout defaults to left-symmetric > mdadm: /dev/sdb1 appears to contain an ext2fs file system > size=390708800K mtime=Wed Dec 31 19:00:00 1969 > mdadm: /dev/sdc1 appears to contain an ext2fs file system > size=390708800K mtime=Wed Dec 31 19:00:00 1969 > mdadm: /dev/sdd1 appears to contain an ext2fs file system > size=390708800K mtime=Wed Dec 31 19:00:00 1969 > mdadm: size set to 390708736K > mdadm: creation continuing despite oddities due to --run > mdadm: SET_ARRAY_INFO failed for /dev/md0: Device or resource busy > > > This is the output from fdisk -l : > Disk /dev/sdb: 400.0 GB, 400088457216 bytes > 255 heads, 63 sectors/track, 48641 cylinders > Units = cylinders of 16065 * 512 = 8225280 bytes > > Device Boot Start End Blocks Id System > /dev/sdb1 1 48641 390708801 fd Linux raid autodetect > > Disk /dev/sdc: 400.0 GB, 400088457216 bytes > 255 heads, 63 sectors/track, 48641 cylinders > Units = cylinders of 16065 * 512 = 8225280 bytes > > Device Boot Start End Blocks Id System > /dev/sdc1 1 48641 390708801 fd Linux raid autodetect > > Disk /dev/sdd: 400.0 GB, 400088457216 bytes > 255 heads, 63 sectors/track, 48641 cylinders > Units = cylinders of 16065 * 512 = 8225280 bytes > > Device Boot Start End Blocks Id System > /dev/sdd1 1 48641 390708801 fd Linux raid autodetect > > > Why does it always give the error "Device or resource busy", and what > can I do about it? > > - > Ray Greene > > - > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
