Unable to force disk geometry past 8TB for recovery
Posted: 20 Jun 2012, 02:11
I was hoping someone might be able to help me recover an EXT4 partition. I lost 2 drives in my RAID5 the other day and trying to find some instructions online led me to hose the existing file system. For some reason, all the tools complain that my partition is larger than the space allowed, not by much, but it's still larger. I tried going to the section of the tool to adjust the disk geometry to try and get it to work but it doesn't let me enter any cylinder values that would result in a partition larger than 8 TiB. The partitions it finds I think are the correct ones.
Any assistance would be greatly appreciated. I'm copying some screen dumps below of the RAID itself and the output of the tool:
======================================================================
RAID rebuild
======================================================================
medusa ~ # mdadm --verbose --create /dev/md5 --level=5 --raid-devices 8 /dev/sd{c..i}1 missing
mdadm: layout defaults to left-symmetric
mdadm: layout defaults to left-symmetric
mdadm: chunk size defaults to 512K
mdadm: /dev/sdc1 appears to be part of a raid array:
level=raid5 devices=8 ctime=Mon Jun 18 19:20:37 2012
mdadm: layout defaults to left-symmetric
mdadm: /dev/sdd1 appears to be part of a raid array:
level=raid5 devices=8 ctime=Mon Jun 18 19:20:37 2012
mdadm: layout defaults to left-symmetric
mdadm: /dev/sde1 appears to be part of a raid array:
level=raid5 devices=8 ctime=Mon Jun 18 19:20:37 2012
mdadm: layout defaults to left-symmetric
mdadm: /dev/sdf1 appears to be part of a raid array:
level=raid5 devices=8 ctime=Mon Jun 18 19:20:37 2012
mdadm: partition table exists on /dev/sdf1 but will be lost or
meaningless after creating array
mdadm: layout defaults to left-symmetric
mdadm: /dev/sdg1 appears to be part of a raid array:
level=raid5 devices=8 ctime=Mon Jun 18 19:20:37 2012
mdadm: layout defaults to left-symmetric
mdadm: /dev/sdh1 appears to contain an ext2fs file system
size=1863368260K mtime=Sun Feb 26 11:52:06 2012
mdadm: /dev/sdh1 appears to be part of a raid array:
level=raid5 devices=8 ctime=Mon Jun 18 19:20:37 2012
mdadm: partition table exists on /dev/sdh1 but will be lost or
meaningless after creating array
mdadm: layout defaults to left-symmetric
mdadm: /dev/sdi1 appears to be part of a raid array:
level=raid5 devices=8 ctime=Mon Jun 18 19:20:37 2012
mdadm: size set to 1953510400K
Continue creating array? y
mdadm: Defaulting to version 1.2 metadata
mdadm: array /dev/md5 started.
medusa ~ # mount /mnt/raid2/
======================================================================
Screen output
======================================================================
Disk /dev/md5 - 14 TB / 12 TiB - CHS 3418643200 2 4
The harddisk (14 TB / 12 TiB) seems too small! (< 14 TB / 12 TiB)
Check the harddisk size: HD jumpers settings, BIOS detection...
The following partitions can't be recovered:
Partition Start End Size in sectors
ext4 28743 1 2 3418674631 1 1 27349167104
ext4 1602567 1 2 3420248455 1 1 27349167104
> ext4 2651143 1 2 3421297031 1 1 27349167104
======================================================================
Log output
======================================================================
Tue Jun 19 08:57:06 2012
Command line: TestDisk
TestDisk 6.13, Data Recovery Utility, November 2011
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org
OS: Linux, kernel 3.0.6-gentoo (#3 SMP PREEMPT Sat Nov 5 22:28:43 PDT 2011) x86_64
Compiler: GCC 4.4
Compilation date: 2011-11-15T02:42:19
ext2fs lib: 1.41.9, ntfs lib: libntfs-3g, reiserfs lib: 0.3.1-rc8, ewf lib: 20100226
/dev/sda: LBA, HPA, LBA48, DCO support
/dev/sda: size 117210240 sectors
/dev/sda: user_max 117210240 sectors
/dev/sda: native_max 117210240 sectors
/dev/sda: dco 117210240 sectors
/dev/sdb: LBA, HPA, LBA48, DCO support
/dev/sdb: size 117210240 sectors
/dev/sdb: user_max 117210240 sectors
/dev/sdb: native_max 117210240 sectors
/dev/sdb: dco 117210240 sectors
/dev/sdc: LBA, HPA, LBA48, DCO support
/dev/sdc: size 3907029168 sectors
/dev/sdc: user_max 3907029168 sectors
/dev/sdc: native_max 3907029168 sectors
/dev/sdc: dco 3907029168 sectors
/dev/sdd: LBA, HPA, LBA48, DCO support
/dev/sdd: size 3907029168 sectors
/dev/sdd: user_max 3907029168 sectors
/dev/sdd: native_max 3907029168 sectors
/dev/sdd: dco 3907029168 sectors
/dev/sde: LBA, HPA, LBA48, DCO support
/dev/sde: size 3907029168 sectors
/dev/sde: user_max 3907029168 sectors
/dev/sde: native_max 3907029168 sectors
/dev/sde: dco 3907029168 sectors
/dev/sdf: LBA, HPA, LBA48, DCO support
/dev/sdf: size 3907029168 sectors
/dev/sdf: user_max 3907029168 sectors
/dev/sdf: native_max 3907029168 sectors
/dev/sdf: dco 3907029168 sectors
/dev/sdg: LBA, HPA, LBA48, DCO support
/dev/sdg: size 3907029168 sectors
/dev/sdg: user_max 3907029168 sectors
/dev/sdg: native_max 3907029168 sectors
/dev/sdg: dco 3907029168 sectors
/dev/sdh: LBA, HPA, LBA48, DCO support
/dev/sdh: size 3907029168 sectors
/dev/sdh: user_max 3907029168 sectors
/dev/sdh: native_max 3907029168 sectors
/dev/sdh: dco 3907029168 sectors
/dev/sdi: LBA, HPA, LBA48, DCO support
/dev/sdi: size 3907029168 sectors
/dev/sdi: user_max 3907029168 sectors
/dev/sdi: native_max 3907029168 sectors
/dev/sdi: dco 3907029168 sectors
/dev/sdj: LBA, HPA, LBA48, DCO support
/dev/sdj: size 3907029168 sectors
/dev/sdj: user_max 3907029168 sectors
/dev/sdj: native_max 3907029168 sectors
/dev/sdj: dco 3907029168 sectors
/dev/sdk: LBA, HPA, LBA48, DCO support
/dev/sdk: size 3907029168 sectors
/dev/sdk: user_max 3907029168 sectors
/dev/sdk: native_max 3907029168 sectors
/dev/sdk: dco 3907029168 sectors
/dev/sdl: LBA, HPA, LBA48, DCO support
/dev/sdl: size 3907029168 sectors
/dev/sdl: user_max 3907029168 sectors
/dev/sdl: native_max 3907029168 sectors
/dev/sdl: dco 3907029168 sectors
/dev/sdm: LBA, HPA, LBA48, DCO support
/dev/sdm: size 3907029168 sectors
/dev/sdm: user_max 3907029168 sectors
/dev/sdm: native_max 3907029168 sectors
/dev/sdm: dco 3907029168 sectors
/dev/sdn: LBA, HPA, LBA48, DCO support
/dev/sdn: size 3907029168 sectors
/dev/sdn: user_max 3907029168 sectors
/dev/sdn: native_max 3907029168 sectors
/dev/sdn: dco 3907029168 sectors
/dev/sdo: LBA, HPA, LBA48, DCO support
/dev/sdo: size 3907029168 sectors
/dev/sdo: user_max 3907029168 sectors
/dev/sdo: native_max 3907029168 sectors
/dev/sdo: dco 3907029168 sectors
/dev/sdp: LBA, HPA, LBA48 support
/dev/sdp: size 3907029168 sectors
/dev/sdp: user_max 3907029168 sectors
/dev/sdp: native_max 3907029168 sectors
/dev/sdq: LBA, HPA, LBA48, DCO support
/dev/sdq: size 3907029168 sectors
/dev/sdq: user_max 3907029168 sectors
/dev/sdq: native_max 3907029168 sectors
/dev/sdq: dco 3907029168 sectors
/dev/sdr: LBA, HPA, LBA48, DCO support
/dev/sdr: size 3907029168 sectors
/dev/sdr: user_max 3907029168 sectors
/dev/sdr: native_max 3907029168 sectors
/dev/sdr: dco 3907029168 sectors
Warning: can't get size for Disk /dev/mapper/control - 0 B - CHS 1 1 1, sector size=512
Hard disk list
Disk /dev/sda - 60 GB / 55 GiB - CHS 7296 255 63, sector size=512 - TOSHIBA MK6037GSX, S/N:674MT0A4T, FW:DL330G
Disk /dev/sdb - 60 GB / 55 GiB - CHS 7296 255 63, sector size=512 - TOSHIBA MK6037GSX, S/N:674MT0A5T, FW:DL330G
Disk /dev/sdc - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-00R6B0, S/N:WD-WCAVY1357327, FW:01.00A01
Disk /dev/sdd - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-00R6B0, S/N:WD-WCAVY1333756, FW:01.00A01
Disk /dev/sde - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EARX-00PASB0, S/N:WD-WMAZA6953333, FW:51.0AB51
Disk /dev/sdf - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-22R6B0, S/N:WD-WCAVY5208359, FW:01.00A01
Disk /dev/sdg - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-22R6B0, S/N:WD-WCAVY5187468, FW:01.00A01
Disk /dev/sdh - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-00R6B0, S/N:WD-WCAVY5447218, FW:01.00A01
Disk /dev/sdi - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-00S2B0, S/N:WD-WCAVY5376419, FW:01.00A01
Disk /dev/sdj - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-00S2B0, S/N:WD-WCAVY4671438, FW:01.00A01
Disk /dev/sdk - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EARX-00PASB0, S/N:WD-WMAZA6949978, FW:51.0AB51
Disk /dev/sdl - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-00R6B0, S/N:WD-WCAVY1067600, FW:01.00A01
Disk /dev/sdm - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EARX-00PASB0, S/N:WD-WMAZA6948967, FW:51.0AB51
Disk /dev/sdn - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-00R6B0, S/N:WD-WCAVY1358850, FW:01.00A01
Disk /dev/sdo - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-00S2B0, S/N:WD-WCAVY1316914, FW:01.00A01
Disk /dev/sdp - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-00W4B0, S/N:WD-WCAVY4624704, FW:01.00A01
Disk /dev/sdq - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EARX-00PASB0, S/N:WD-WMAZA6836631, FW:51.0AB51
Disk /dev/sdr - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EARX-00PASB0, S/N:WD-WCAZAD171957, FW:51.0AB51
Disk /dev/md1 - 41 MB / 39 MiB - CHS 10016 2 4, sector size=512
Disk /dev/md2 - 12 GB / 11 GiB - CHS 2931840 2 4, sector size=512
Disk /dev/md3 - 47 GB / 44 GiB - CHS 11709360 2 4, sector size=512
Disk /dev/md4 - 14 TB / 12 TiB - CHS 3418645888 2 4, sector size=512
Disk /dev/md5 - 14 TB / 12 TiB - CHS 3418643200 2 4, sector size=512
Partition table type (auto): None
Disk /dev/md5 - 14 TB / 12 TiB
Partition table type: None
New options :
Dump : No
Cylinder boundary : Yes
Allow partial last cylinder : No
Expert mode : Yes
Analyse Disk /dev/md5 - 14 TB / 12 TiB - CHS 3418643200 2 4
recover_EXT2: s_block_group_nr=0/104328, s_mnt_count=3/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
Current partition structure:
P ext4 0 0 1 3418643199 1 4 27349145600
search_part()
Disk /dev/md5 - 14 TB / 12 TiB - CHS 3418643200 2 4
recover_EXT2: s_block_group_nr=0/104328, s_mnt_count=3/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Recover, 14 TB / 12 TiB
Results
P ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Recover, 14 TB / 12 TiB
interface_write()
P ext4 0 0 1 3418643199 1 4 27349145600
Write isn't available because the partition table type "None" has been selected.
search_part()
Disk /dev/md5 - 14 TB / 12 TiB - CHS 3418643200 2 4
recover_EXT2: s_block_group_nr=0/104328, s_mnt_count=3/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Recover, 14 TB / 12 TiB
recover_EXT2: s_block_group_nr=0/104328, s_mnt_count=10/30, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418645888
recover_EXT2: part_size 1579363328
ext4 28743 1 2 3418674631 1 1 27349167104
EXT4 Large file Sparse superblock Recover, 14 TB / 12 TiB
This partition ends after the disk limits. (start=229949, size=1579363328, end=1579593276, disk end=1579341824)
block_group_nr 1
recover_EXT2: part_offset problem
block_group_nr 1
recover_EXT2: "e2fsck -b 32768 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=1/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
block_group_nr 3
recover_EXT2: part_offset problem
block_group_nr 3
recover_EXT2: "e2fsck -b 98304 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=3/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
block_group_nr 5
recover_EXT2: part_offset problem
block_group_nr 5
recover_EXT2: "e2fsck -b 163840 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=5/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
block_group_nr 7
recover_EXT2: part_offset problem
block_group_nr 7
recover_EXT2: "e2fsck -b 229376 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=7/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
block_group_nr 9
recover_EXT2: part_offset problem
block_group_nr 9
recover_EXT2: "e2fsck -b 294912 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=9/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
block_group_nr 25
recover_EXT2: part_offset problem
block_group_nr 25
recover_EXT2: "e2fsck -b 819200 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=25/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
block_group_nr 27
recover_EXT2: part_offset problem
block_group_nr 27
recover_EXT2: "e2fsck -b 884736 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=27/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
recover_EXT2: s_block_group_nr=0/104328, s_mnt_count=10/30, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418645888
recover_EXT2: part_size 1579363328
ext4 1602567 1 2 3420248455 1 1 27349167104
EXT4 Large file Sparse superblock Recover, 14 TB / 12 TiB
This partition ends after the disk limits. (start=12820541, size=1579363328, end=1592183868, disk end=1579341824)
block_group_nr 49
recover_EXT2: part_offset problem
block_group_nr 49
recover_EXT2: "e2fsck -b 1605632 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=49/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
recover_EXT2: s_block_group_nr=0/104328, s_mnt_count=10/30, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418645888
recover_EXT2: part_size 1579363328
ext4 2651143 1 2 3421297031 1 1 27349167104
EXT4 Large file Sparse superblock Recover, 14 TB / 12 TiB
This partition ends after the disk limits. (start=21209149, size=1579363328, end=1600572476, disk end=1579341824)
block_group_nr 81
recover_EXT2: part_offset problem
block_group_nr 81
recover_EXT2: "e2fsck -b 2654208 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=81/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
block_group_nr 125
recover_EXT2: part_offset problem
block_group_nr 125
recover_EXT2: "e2fsck -b 4096000 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=125/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
block_group_nr 243
recover_EXT2: part_offset problem
block_group_nr 243
recover_EXT2: "e2fsck -b 7962624 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=243/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
block_group_nr 343
recover_EXT2: part_offset problem
block_group_nr 343
recover_EXT2: "e2fsck -b 11239424 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=343/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
Search for partition aborted
Disk /dev/md5 - 14 TB / 12 TiB - CHS 3418643200 2 4
Check the harddisk size: HD jumpers settings, BIOS detection...
The harddisk (14 TB / 12 TiB) seems too small! (< 14 TB / 12 TiB)
The following partitions can't be recovered:
ext4 28743 1 2 3418674631 1 1 27349167104
EXT4 Large file Sparse superblock Recover, 14 TB / 12 TiB
ext4 1602567 1 2 3420248455 1 1 27349167104
EXT4 Large file Sparse superblock Recover, 14 TB / 12 TiB
ext4 2651143 1 2 3421297031 1 1 27349167104
EXT4 Large file Sparse superblock Recover, 14 TB / 12 TiB
Results
P ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Recover, 14 TB / 12 TiB
interface_write()
P ext4 0 0 1 3418643199 1 4 27349145600
Write isn't available because the partition table type "None" has been selected.
Interface Advanced
recover_EXT2: s_block_group_nr=0/104328, s_mnt_count=3/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
P ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Recover, 14 TB / 12 TiB
TestDisk exited normally.
Any assistance would be greatly appreciated. I'm copying some screen dumps below of the RAID itself and the output of the tool:
======================================================================
RAID rebuild
======================================================================
medusa ~ # mdadm --verbose --create /dev/md5 --level=5 --raid-devices 8 /dev/sd{c..i}1 missing
mdadm: layout defaults to left-symmetric
mdadm: layout defaults to left-symmetric
mdadm: chunk size defaults to 512K
mdadm: /dev/sdc1 appears to be part of a raid array:
level=raid5 devices=8 ctime=Mon Jun 18 19:20:37 2012
mdadm: layout defaults to left-symmetric
mdadm: /dev/sdd1 appears to be part of a raid array:
level=raid5 devices=8 ctime=Mon Jun 18 19:20:37 2012
mdadm: layout defaults to left-symmetric
mdadm: /dev/sde1 appears to be part of a raid array:
level=raid5 devices=8 ctime=Mon Jun 18 19:20:37 2012
mdadm: layout defaults to left-symmetric
mdadm: /dev/sdf1 appears to be part of a raid array:
level=raid5 devices=8 ctime=Mon Jun 18 19:20:37 2012
mdadm: partition table exists on /dev/sdf1 but will be lost or
meaningless after creating array
mdadm: layout defaults to left-symmetric
mdadm: /dev/sdg1 appears to be part of a raid array:
level=raid5 devices=8 ctime=Mon Jun 18 19:20:37 2012
mdadm: layout defaults to left-symmetric
mdadm: /dev/sdh1 appears to contain an ext2fs file system
size=1863368260K mtime=Sun Feb 26 11:52:06 2012
mdadm: /dev/sdh1 appears to be part of a raid array:
level=raid5 devices=8 ctime=Mon Jun 18 19:20:37 2012
mdadm: partition table exists on /dev/sdh1 but will be lost or
meaningless after creating array
mdadm: layout defaults to left-symmetric
mdadm: /dev/sdi1 appears to be part of a raid array:
level=raid5 devices=8 ctime=Mon Jun 18 19:20:37 2012
mdadm: size set to 1953510400K
Continue creating array? y
mdadm: Defaulting to version 1.2 metadata
mdadm: array /dev/md5 started.
medusa ~ # mount /mnt/raid2/
======================================================================
Screen output
======================================================================
Disk /dev/md5 - 14 TB / 12 TiB - CHS 3418643200 2 4
The harddisk (14 TB / 12 TiB) seems too small! (< 14 TB / 12 TiB)
Check the harddisk size: HD jumpers settings, BIOS detection...
The following partitions can't be recovered:
Partition Start End Size in sectors
ext4 28743 1 2 3418674631 1 1 27349167104
ext4 1602567 1 2 3420248455 1 1 27349167104
> ext4 2651143 1 2 3421297031 1 1 27349167104
======================================================================
Log output
======================================================================
Tue Jun 19 08:57:06 2012
Command line: TestDisk
TestDisk 6.13, Data Recovery Utility, November 2011
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org
OS: Linux, kernel 3.0.6-gentoo (#3 SMP PREEMPT Sat Nov 5 22:28:43 PDT 2011) x86_64
Compiler: GCC 4.4
Compilation date: 2011-11-15T02:42:19
ext2fs lib: 1.41.9, ntfs lib: libntfs-3g, reiserfs lib: 0.3.1-rc8, ewf lib: 20100226
/dev/sda: LBA, HPA, LBA48, DCO support
/dev/sda: size 117210240 sectors
/dev/sda: user_max 117210240 sectors
/dev/sda: native_max 117210240 sectors
/dev/sda: dco 117210240 sectors
/dev/sdb: LBA, HPA, LBA48, DCO support
/dev/sdb: size 117210240 sectors
/dev/sdb: user_max 117210240 sectors
/dev/sdb: native_max 117210240 sectors
/dev/sdb: dco 117210240 sectors
/dev/sdc: LBA, HPA, LBA48, DCO support
/dev/sdc: size 3907029168 sectors
/dev/sdc: user_max 3907029168 sectors
/dev/sdc: native_max 3907029168 sectors
/dev/sdc: dco 3907029168 sectors
/dev/sdd: LBA, HPA, LBA48, DCO support
/dev/sdd: size 3907029168 sectors
/dev/sdd: user_max 3907029168 sectors
/dev/sdd: native_max 3907029168 sectors
/dev/sdd: dco 3907029168 sectors
/dev/sde: LBA, HPA, LBA48, DCO support
/dev/sde: size 3907029168 sectors
/dev/sde: user_max 3907029168 sectors
/dev/sde: native_max 3907029168 sectors
/dev/sde: dco 3907029168 sectors
/dev/sdf: LBA, HPA, LBA48, DCO support
/dev/sdf: size 3907029168 sectors
/dev/sdf: user_max 3907029168 sectors
/dev/sdf: native_max 3907029168 sectors
/dev/sdf: dco 3907029168 sectors
/dev/sdg: LBA, HPA, LBA48, DCO support
/dev/sdg: size 3907029168 sectors
/dev/sdg: user_max 3907029168 sectors
/dev/sdg: native_max 3907029168 sectors
/dev/sdg: dco 3907029168 sectors
/dev/sdh: LBA, HPA, LBA48, DCO support
/dev/sdh: size 3907029168 sectors
/dev/sdh: user_max 3907029168 sectors
/dev/sdh: native_max 3907029168 sectors
/dev/sdh: dco 3907029168 sectors
/dev/sdi: LBA, HPA, LBA48, DCO support
/dev/sdi: size 3907029168 sectors
/dev/sdi: user_max 3907029168 sectors
/dev/sdi: native_max 3907029168 sectors
/dev/sdi: dco 3907029168 sectors
/dev/sdj: LBA, HPA, LBA48, DCO support
/dev/sdj: size 3907029168 sectors
/dev/sdj: user_max 3907029168 sectors
/dev/sdj: native_max 3907029168 sectors
/dev/sdj: dco 3907029168 sectors
/dev/sdk: LBA, HPA, LBA48, DCO support
/dev/sdk: size 3907029168 sectors
/dev/sdk: user_max 3907029168 sectors
/dev/sdk: native_max 3907029168 sectors
/dev/sdk: dco 3907029168 sectors
/dev/sdl: LBA, HPA, LBA48, DCO support
/dev/sdl: size 3907029168 sectors
/dev/sdl: user_max 3907029168 sectors
/dev/sdl: native_max 3907029168 sectors
/dev/sdl: dco 3907029168 sectors
/dev/sdm: LBA, HPA, LBA48, DCO support
/dev/sdm: size 3907029168 sectors
/dev/sdm: user_max 3907029168 sectors
/dev/sdm: native_max 3907029168 sectors
/dev/sdm: dco 3907029168 sectors
/dev/sdn: LBA, HPA, LBA48, DCO support
/dev/sdn: size 3907029168 sectors
/dev/sdn: user_max 3907029168 sectors
/dev/sdn: native_max 3907029168 sectors
/dev/sdn: dco 3907029168 sectors
/dev/sdo: LBA, HPA, LBA48, DCO support
/dev/sdo: size 3907029168 sectors
/dev/sdo: user_max 3907029168 sectors
/dev/sdo: native_max 3907029168 sectors
/dev/sdo: dco 3907029168 sectors
/dev/sdp: LBA, HPA, LBA48 support
/dev/sdp: size 3907029168 sectors
/dev/sdp: user_max 3907029168 sectors
/dev/sdp: native_max 3907029168 sectors
/dev/sdq: LBA, HPA, LBA48, DCO support
/dev/sdq: size 3907029168 sectors
/dev/sdq: user_max 3907029168 sectors
/dev/sdq: native_max 3907029168 sectors
/dev/sdq: dco 3907029168 sectors
/dev/sdr: LBA, HPA, LBA48, DCO support
/dev/sdr: size 3907029168 sectors
/dev/sdr: user_max 3907029168 sectors
/dev/sdr: native_max 3907029168 sectors
/dev/sdr: dco 3907029168 sectors
Warning: can't get size for Disk /dev/mapper/control - 0 B - CHS 1 1 1, sector size=512
Hard disk list
Disk /dev/sda - 60 GB / 55 GiB - CHS 7296 255 63, sector size=512 - TOSHIBA MK6037GSX, S/N:674MT0A4T, FW:DL330G
Disk /dev/sdb - 60 GB / 55 GiB - CHS 7296 255 63, sector size=512 - TOSHIBA MK6037GSX, S/N:674MT0A5T, FW:DL330G
Disk /dev/sdc - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-00R6B0, S/N:WD-WCAVY1357327, FW:01.00A01
Disk /dev/sdd - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-00R6B0, S/N:WD-WCAVY1333756, FW:01.00A01
Disk /dev/sde - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EARX-00PASB0, S/N:WD-WMAZA6953333, FW:51.0AB51
Disk /dev/sdf - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-22R6B0, S/N:WD-WCAVY5208359, FW:01.00A01
Disk /dev/sdg - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-22R6B0, S/N:WD-WCAVY5187468, FW:01.00A01
Disk /dev/sdh - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-00R6B0, S/N:WD-WCAVY5447218, FW:01.00A01
Disk /dev/sdi - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-00S2B0, S/N:WD-WCAVY5376419, FW:01.00A01
Disk /dev/sdj - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-00S2B0, S/N:WD-WCAVY4671438, FW:01.00A01
Disk /dev/sdk - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EARX-00PASB0, S/N:WD-WMAZA6949978, FW:51.0AB51
Disk /dev/sdl - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-00R6B0, S/N:WD-WCAVY1067600, FW:01.00A01
Disk /dev/sdm - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EARX-00PASB0, S/N:WD-WMAZA6948967, FW:51.0AB51
Disk /dev/sdn - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-00R6B0, S/N:WD-WCAVY1358850, FW:01.00A01
Disk /dev/sdo - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-00S2B0, S/N:WD-WCAVY1316914, FW:01.00A01
Disk /dev/sdp - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EADS-00W4B0, S/N:WD-WCAVY4624704, FW:01.00A01
Disk /dev/sdq - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EARX-00PASB0, S/N:WD-WMAZA6836631, FW:51.0AB51
Disk /dev/sdr - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EARX-00PASB0, S/N:WD-WCAZAD171957, FW:51.0AB51
Disk /dev/md1 - 41 MB / 39 MiB - CHS 10016 2 4, sector size=512
Disk /dev/md2 - 12 GB / 11 GiB - CHS 2931840 2 4, sector size=512
Disk /dev/md3 - 47 GB / 44 GiB - CHS 11709360 2 4, sector size=512
Disk /dev/md4 - 14 TB / 12 TiB - CHS 3418645888 2 4, sector size=512
Disk /dev/md5 - 14 TB / 12 TiB - CHS 3418643200 2 4, sector size=512
Partition table type (auto): None
Disk /dev/md5 - 14 TB / 12 TiB
Partition table type: None
New options :
Dump : No
Cylinder boundary : Yes
Allow partial last cylinder : No
Expert mode : Yes
Analyse Disk /dev/md5 - 14 TB / 12 TiB - CHS 3418643200 2 4
recover_EXT2: s_block_group_nr=0/104328, s_mnt_count=3/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
Current partition structure:
P ext4 0 0 1 3418643199 1 4 27349145600
search_part()
Disk /dev/md5 - 14 TB / 12 TiB - CHS 3418643200 2 4
recover_EXT2: s_block_group_nr=0/104328, s_mnt_count=3/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Recover, 14 TB / 12 TiB
Results
P ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Recover, 14 TB / 12 TiB
interface_write()
P ext4 0 0 1 3418643199 1 4 27349145600
Write isn't available because the partition table type "None" has been selected.
search_part()
Disk /dev/md5 - 14 TB / 12 TiB - CHS 3418643200 2 4
recover_EXT2: s_block_group_nr=0/104328, s_mnt_count=3/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Recover, 14 TB / 12 TiB
recover_EXT2: s_block_group_nr=0/104328, s_mnt_count=10/30, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418645888
recover_EXT2: part_size 1579363328
ext4 28743 1 2 3418674631 1 1 27349167104
EXT4 Large file Sparse superblock Recover, 14 TB / 12 TiB
This partition ends after the disk limits. (start=229949, size=1579363328, end=1579593276, disk end=1579341824)
block_group_nr 1
recover_EXT2: part_offset problem
block_group_nr 1
recover_EXT2: "e2fsck -b 32768 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=1/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
block_group_nr 3
recover_EXT2: part_offset problem
block_group_nr 3
recover_EXT2: "e2fsck -b 98304 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=3/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
block_group_nr 5
recover_EXT2: part_offset problem
block_group_nr 5
recover_EXT2: "e2fsck -b 163840 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=5/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
block_group_nr 7
recover_EXT2: part_offset problem
block_group_nr 7
recover_EXT2: "e2fsck -b 229376 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=7/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
block_group_nr 9
recover_EXT2: part_offset problem
block_group_nr 9
recover_EXT2: "e2fsck -b 294912 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=9/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
block_group_nr 25
recover_EXT2: part_offset problem
block_group_nr 25
recover_EXT2: "e2fsck -b 819200 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=25/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
block_group_nr 27
recover_EXT2: part_offset problem
block_group_nr 27
recover_EXT2: "e2fsck -b 884736 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=27/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
recover_EXT2: s_block_group_nr=0/104328, s_mnt_count=10/30, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418645888
recover_EXT2: part_size 1579363328
ext4 1602567 1 2 3420248455 1 1 27349167104
EXT4 Large file Sparse superblock Recover, 14 TB / 12 TiB
This partition ends after the disk limits. (start=12820541, size=1579363328, end=1592183868, disk end=1579341824)
block_group_nr 49
recover_EXT2: part_offset problem
block_group_nr 49
recover_EXT2: "e2fsck -b 1605632 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=49/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
recover_EXT2: s_block_group_nr=0/104328, s_mnt_count=10/30, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418645888
recover_EXT2: part_size 1579363328
ext4 2651143 1 2 3421297031 1 1 27349167104
EXT4 Large file Sparse superblock Recover, 14 TB / 12 TiB
This partition ends after the disk limits. (start=21209149, size=1579363328, end=1600572476, disk end=1579341824)
block_group_nr 81
recover_EXT2: part_offset problem
block_group_nr 81
recover_EXT2: "e2fsck -b 2654208 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=81/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
block_group_nr 125
recover_EXT2: part_offset problem
block_group_nr 125
recover_EXT2: "e2fsck -b 4096000 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=125/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
block_group_nr 243
recover_EXT2: part_offset problem
block_group_nr 243
recover_EXT2: "e2fsck -b 7962624 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=243/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
block_group_nr 343
recover_EXT2: part_offset problem
block_group_nr 343
recover_EXT2: "e2fsck -b 11239424 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=343/104328, s_mnt_count=0/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Backup superblock, 14 TB / 12 TiB
Search for partition aborted
Disk /dev/md5 - 14 TB / 12 TiB - CHS 3418643200 2 4
Check the harddisk size: HD jumpers settings, BIOS detection...
The harddisk (14 TB / 12 TiB) seems too small! (< 14 TB / 12 TiB)
The following partitions can't be recovered:
ext4 28743 1 2 3418674631 1 1 27349167104
EXT4 Large file Sparse superblock Recover, 14 TB / 12 TiB
ext4 1602567 1 2 3420248455 1 1 27349167104
EXT4 Large file Sparse superblock Recover, 14 TB / 12 TiB
ext4 2651143 1 2 3421297031 1 1 27349167104
EXT4 Large file Sparse superblock Recover, 14 TB / 12 TiB
Results
P ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Recover, 14 TB / 12 TiB
interface_write()
P ext4 0 0 1 3418643199 1 4 27349145600
Write isn't available because the partition table type "None" has been selected.
Interface Advanced
recover_EXT2: s_block_group_nr=0/104328, s_mnt_count=3/21, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 3418643200
recover_EXT2: part_size 1579341824
P ext4 0 0 1 3418643199 1 4 27349145600
EXT4 Sparse superblock Recover, 14 TB / 12 TiB
TestDisk exited normally.