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Old 06-23-2013, 03:26 PM   #1
jlowel
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Registered: Jun 2013
Posts: 1

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Question Hard Disks MIA on Ubuntu 13.04


Hello. I am new to Linux and decided to run Ubuntu based on recommendations. I installed it just fine, but I am running into a problem where two of my hard drives are not showing up. I have Ubuntu dual boot with a windows install. The two hard drives in question are identical Samsung 1TB drives formated with NTFS. They work just fine under windows as well as two other NTFS partitions that are showing up under Ubuntu just fine. I googled around and learned the commands to list my drives. It appears that the two Samsungs are showing up as "promise_fasttrack_raid_member" under Ubuntu. I do not have these drives setup in raid so I don't understand what is going on. I tried to mount them /dev/sdc and /dev/sdd directly with no luck. Please help. I've attached the listings from the commands blkid and fdisk -l respectively.

sudo blkid:

/dev/sda1: LABEL="Sys" UUID="8C447C48447C36D4" TYPE="ntfs"
/dev/sdb1: UUID="c47a966e-9005-4f45-bbfe-f2ca4af2d13b" TYPE="ext4"
/dev/sdb2: LABEL="Backup" UUID="445DC5E22BF71702" TYPE="ntfs"
/dev/sdb3: UUID="0c967f78-f3ef-44e5-bb6d-f25a58d6f7d8" TYPE="swap"
/dev/sdc: TYPE="promise_fasttrack_raid_member"
/dev/sdd: TYPE="promise_fasttrack_raid_member"

sudo fdisk -l:

Disk /dev/sda: 90.0 GB, 90028302336 bytes
255 heads, 63 sectors/track, 10945 cylinders, total 175836528 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xb180ca99

Device Boot Start End Blocks Id System
/dev/sda1 * 2048 175835135 87916544 7 HPFS/NTFS/exFAT

Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0009a86a

Device Boot Start End Blocks Id System
/dev/sdb1 * 2048 165754001 82875977 83 Linux
/dev/sdb2 204818432 1953523711 874352640 7 HPFS/NTFS/exFAT
/dev/sdb3 165754880 204816383 19530752 82 Linux swap / Solaris

Partition table entries are not in disk order

Disk /dev/sdc: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000eac4f

Device Boot Start End Blocks Id System
/dev/sdc1 2048 1953523711 976760832 7 HPFS/NTFS/exFAT

Disk /dev/sdd: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0009b807

Device Boot Start End Blocks Id System
/dev/sdd1 2048 1953523711 976760832 7 HPFS/NTFS/exFAT

Disk /dev/mapper/pdc_baihciifa: 2000.3 GB, 2000275505152 bytes
255 heads, 63 sectors/track, 243186 cylinders, total 3906788096 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 131072 bytes
Disk identifier: 0x000eac4f

Device Boot Start End Blocks Id System
/dev/mapper/pdc_baihciifa1 2048 1953523711 976760832 7 HPFS/NTFS/exFAT

Disk /dev/mapper/pdc_baihciifa1: 1000.2 GB, 1000203091968 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953521664 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 131072 bytes
Disk identifier: 0xb4a949ad

Disk /dev/mapper/pdc_baihciifa1 doesn't contain a valid partition table
 
Old 06-24-2013, 10:02 AM   #2
thedaver
Member
 
Registered: Jan 2010
Posts: 65

Rep: Reputation: 21
Your information indicates that the two NTFS drives do not have any partitions that linux recognizes.

You have two 1GB drives at /dev/sdc and /dev/sdd

Windows may have formatted as NTFS without partitioning. Under linux, you would not normally mount /dev/sdc but rather /dev/sdc1 or sdc2, etc.

NTFS file system support on linux has improved quite a bit and should work normally, but it's still proprietary to M$, so you may uncover uniquenesses that affect your experience.

As to the promise_raid... you should google for that, it can arise from a number of factors http://forums.fedoraforum.org/archiv.../t-271742.html
 
  


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