lightnb
May 25th, 2009, 04:11 AM
I have two identical physical hard drives, each one partitioned into three sections.
Then, I created three software raid 1 (mirror) devices, that grouped each of those matching sections into arrays.
Then I made one array the /boot partition.
With the other two, I turned them into encrypted drives. One for root, the other swap.
The system does actually boot, but I find the message "Disk /dev/md1 doesn't contain a valid partition table" in the output of "fdisk -l".
Is that anything to worry about?
Will the virtual encryption drive on the raid array cause problems with replacement or damaged raid disks later on?
Is this a supported/recommend way to get drives that are encrypted AND on RAID 1?
fdisk -l:
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0003af27
Device Boot Start End Blocks Id System
/dev/sda1 * 1 24 192748+ fd Linux raid autodetect
/dev/sda2 60559 60801 1951897+ fd Linux raid autodetect
/dev/sda3 25 60558 486239355 fd Linux raid autodetect
Partition table entries are not in disk order
Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0003d17f
Device Boot Start End Blocks Id System
/dev/sdb1 * 1 24 192748+ fd Linux raid autodetect
/dev/sdb2 60559 60801 1951897+ fd Linux raid autodetect
/dev/sdb3 25 60558 486239355 fd Linux raid autodetect
Partition table entries are not in disk order
Disk /dev/md1: 497.9 GB, 497908973568 bytes
2 heads, 4 sectors/track, 121559808 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Disk identifier: 0x08040000
Disk /dev/md1 doesn't contain a valid partition table
Disk /dev/md0: 197 MB, 197263360 bytes
2 heads, 4 sectors/track, 48160 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Disk identifier: 0x00000000
Disk /dev/md0 doesn't contain a valid partition table
Disk /dev/md2: 1998 MB, 1998651392 bytes
2 heads, 4 sectors/track, 487952 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Disk identifier: 0x89983a19
Disk /dev/md2 doesn't contain a valid partition table
Then, I created three software raid 1 (mirror) devices, that grouped each of those matching sections into arrays.
Then I made one array the /boot partition.
With the other two, I turned them into encrypted drives. One for root, the other swap.
The system does actually boot, but I find the message "Disk /dev/md1 doesn't contain a valid partition table" in the output of "fdisk -l".
Is that anything to worry about?
Will the virtual encryption drive on the raid array cause problems with replacement or damaged raid disks later on?
Is this a supported/recommend way to get drives that are encrypted AND on RAID 1?
fdisk -l:
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0003af27
Device Boot Start End Blocks Id System
/dev/sda1 * 1 24 192748+ fd Linux raid autodetect
/dev/sda2 60559 60801 1951897+ fd Linux raid autodetect
/dev/sda3 25 60558 486239355 fd Linux raid autodetect
Partition table entries are not in disk order
Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0003d17f
Device Boot Start End Blocks Id System
/dev/sdb1 * 1 24 192748+ fd Linux raid autodetect
/dev/sdb2 60559 60801 1951897+ fd Linux raid autodetect
/dev/sdb3 25 60558 486239355 fd Linux raid autodetect
Partition table entries are not in disk order
Disk /dev/md1: 497.9 GB, 497908973568 bytes
2 heads, 4 sectors/track, 121559808 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Disk identifier: 0x08040000
Disk /dev/md1 doesn't contain a valid partition table
Disk /dev/md0: 197 MB, 197263360 bytes
2 heads, 4 sectors/track, 48160 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Disk identifier: 0x00000000
Disk /dev/md0 doesn't contain a valid partition table
Disk /dev/md2: 1998 MB, 1998651392 bytes
2 heads, 4 sectors/track, 487952 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Disk identifier: 0x89983a19
Disk /dev/md2 doesn't contain a valid partition table