Hello members, how can I install a Linux Software-RAID 1 on Debian Squeeze using mdadm (2 disks: sda sdb)? On google and a lot of linux sites I can find just old tutorials that do not work or destined for a LVM System. Can anybody help as so far, im not doing very well, appreciated if you can help. Louis
I didn't find the solution to this problem, I try many old tutorials and in a haphazard way. Did you think it's cool to install my Open Virtuozzo setup now and build the software RAID 1 when a tutorial is available in the World Wide Web for this? Works this or is that too risky?
Here's the tutorial for non-LVM systems: http://www.howtoforge.com/how-to-se...ystem-incl-grub2-configuration-debian-squeeze
-.- phew I'm sorry, next time I don't use the google search to find tutorials on your site ("site:howtoforge.com debian 6 software raid"). Thanks.
Sorry for another posting today, but I got a problem. I get the following error: "You cannot change a partition into an extended one or vice versa. Delete it first." in 2008 you said this, I change it correctly (probably) but it's not work. Now I notice this on a fully fresh Debian 6 64 Bit System without any manual changes: Code: root@nl:~# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/nl-root 455G 736M 431G 1% / tmpfs 1007M 0 1007M 0% /lib/init/rw udev 1001M 132K 1001M 1% /dev tmpfs 1007M 0 1007M 0% /dev/shm /dev/sda1 228M 16M 200M 8% /boot root@nl:~# Code: root@nl:~# fdisk -l Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00018c21 Device Boot Start End Blocks Id System /dev/sda1 * 1 32 248832 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 32 60802 488134657 5 Extended /dev/sda5 32 60802 488134656 8e Linux LVM Disk /dev/sdb: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sdb1 * 1 32 248832 fd Linux raid autodetect Partition 1 does not end on cylinder boundary. /dev/sdb2 32 60802 488134657 5 Extended /dev/sdb5 32 60802 488134656 fd Linux raid autodetect Disk /dev/md0: 254 MB, 254791680 bytes 2 heads, 4 sectors/track, 62205 cylinders Units = cylinders of 8 * 512 = 4096 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/md0 doesn't contain a valid partition table Disk /dev/dm-0: 495.7 GB, 495724789760 bytes 255 heads, 63 sectors/track, 60268 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/dm-0 doesn't contain a valid partition table Disk /dev/dm-1: 4123 MB, 4123000832 bytes 255 heads, 63 sectors/track, 501 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/dm-1 doesn't contain a valid partition table root@nl:~# Code: root@nl:~# cat /proc/mdstat Personalities : [raid1] md0 : active (auto-read-only) raid1 sdb1[1] 248820 blocks super 1.2 [2/1] [_U] unused devices: <none> root@nl:~# mdadm was already installed, it's a pre-installed RAID 1 or? The support says explicitly that RAID software would not be automatically installed, so I ask you...
Looks like your /boot partition is using RAID1, but it's a degraded array (it's only using /dev/sdb1, and /dev/sda1 is missing). BTW, your system is using LVM, so you must use the LVM tutorial.
Oh, o.k. seems a little bit complicated. I now try the LVM setup for many hours but it fails (even if I change or skipping steps, in any case). My hoster offers Debian unfortunately not without this, it is possible that I clean remove the /boot partition RAID1 or it is permanently? I think then would work your tutorial.
