Inaccessible Partitions
by America's Sweetheart from LinuxQuestions.org on (#5C3GB)
Hi,
I have a couple of SSDs in my system that are connected to an LSI RAID card. I created a RAID 0 virtual drive for each SSD. One has Windows and the other has Linux installed. I have a third OS (also Linux) that I normally use. The fdisk, partprobe, and blkid commands only see a single partition on each of them. When I run partprobe, this error appears:
Code:Error: Invalid argument during seek for read on /dev/sdf
Error: Invalid argument during seek for read on /dev/sdgIf I run fdisk -l, this appears:
Code:Disk /dev/sdf: 237.99 GiB, 255516999680 bytes, 499056640 sectors
Disk model: MR9361-8i
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 262144 bytes / 262144 bytes
Disklabel type: dos
Disk identifier: 0x00000000
Device Boot Start End Sectors Size Id Type
/dev/sdf1 1 4294967295 4294967295 2T ee GPT
Partition 1 does not start on physical sector boundary.
GPT PMBR size mismatch (500118191 != 499056639) will be corrected by write.
Disk /dev/sdg: 237.99 GiB, 255516999680 bytes, 499056640 sectors
Disk model: MR9361-8i
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 262144 bytes / 262144 bytes
Disklabel type: dos
Disk identifier: 0x00000000
Device Boot Start End Sectors Size Id Type
/dev/sdg1 1 499056639 499056639 238G ee GPT
Partition 1 does not start on physical sector boundary.However, if I run gdisk -l, they appear correctly:
Code:****************************************************************************
Caution: Found protective or hybrid MBR and corrupt GPT. Using GPT, but disk
verification and recovery are STRONGLY recommended.
****************************************************************************
Disk /dev/sdf: 499056640 sectors, 238.0 GiB
Model: MR9361-8i
Sector size (logical/physical): 512/512 bytes
Disk identifier (GUID): E17E2ACE-4A78-49DC-8A8E-8E527BF9ADB3
Partition table holds up to 128 entries
Main partition table begins at sector 2 and ends at sector 33
First usable sector is 34, last usable sector is 500118158
Partitions will be aligned on 2048-sector boundaries
Total free space is 4774 sectors (2.3 MiB)
Number Start (sector) End (sector) Size Code Name
1 2048 206847 100.0 MiB EF00 EFI system partition
2 206848 239615 16.0 MiB 0C01 Microsoft reserved ...
3 239616 499095494 237.9 GiB 0700 Basic data partition
4 499095552 500115455 498.0 MiB 2700
desktop2 /home/user # gdisk -l /dev/sdg
GPT fdisk (gdisk) version 1.0.4
Warning! Disk size is smaller than the main header indicates! Loading
secondary header from the last sector of the disk! You should use 'v' to
verify disk integrity, and perhaps options on the experts' menu to repair
the disk.
Caution: invalid backup GPT header, but valid main header; regenerating
backup header from main header.
Warning! One or more CRCs don't match. You should repair the disk!
Main header: OK
Backup header: ERROR
Main partition table: OK
Backup partition table: ERROR
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: damaged
****************************************************************************
Caution: Found protective or hybrid MBR and corrupt GPT. Using GPT, but disk
verification and recovery are STRONGLY recommended.
****************************************************************************
Disk /dev/sdg: 499056640 sectors, 238.0 GiB
Model: MR9361-8i
Sector size (logical/physical): 512/512 bytes
Disk identifier (GUID): 02119722-C083-41EF-B9D0-6A92172793D7
Partition table holds up to 128 entries
Main partition table begins at sector 2 and ends at sector 33
First usable sector is 34, last usable sector is 500118158
Partitions will be aligned on 2048-sector boundaries
Total free space is 2669 sectors (1.3 MiB)
Number Start (sector) End (sector) Size Code Name
1 2048 1230847 600.0 MiB EF00 EFI System Partition
2 1230848 3327999 1024.0 MiB 8300
3 3328000 500117503 236.9 GiB 8300I'd like to be able to mount them and browse them, but mount says the partitions don't exist:
Code:mount: /mnt/fedora: special device /dev/sdg3 does not exist.Is there any way I can mount them in fstab?
Thanks,
Rich


I have a couple of SSDs in my system that are connected to an LSI RAID card. I created a RAID 0 virtual drive for each SSD. One has Windows and the other has Linux installed. I have a third OS (also Linux) that I normally use. The fdisk, partprobe, and blkid commands only see a single partition on each of them. When I run partprobe, this error appears:
Code:Error: Invalid argument during seek for read on /dev/sdf
Error: Invalid argument during seek for read on /dev/sdgIf I run fdisk -l, this appears:
Code:Disk /dev/sdf: 237.99 GiB, 255516999680 bytes, 499056640 sectors
Disk model: MR9361-8i
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 262144 bytes / 262144 bytes
Disklabel type: dos
Disk identifier: 0x00000000
Device Boot Start End Sectors Size Id Type
/dev/sdf1 1 4294967295 4294967295 2T ee GPT
Partition 1 does not start on physical sector boundary.
GPT PMBR size mismatch (500118191 != 499056639) will be corrected by write.
Disk /dev/sdg: 237.99 GiB, 255516999680 bytes, 499056640 sectors
Disk model: MR9361-8i
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 262144 bytes / 262144 bytes
Disklabel type: dos
Disk identifier: 0x00000000
Device Boot Start End Sectors Size Id Type
/dev/sdg1 1 499056639 499056639 238G ee GPT
Partition 1 does not start on physical sector boundary.However, if I run gdisk -l, they appear correctly:
Code:****************************************************************************
Caution: Found protective or hybrid MBR and corrupt GPT. Using GPT, but disk
verification and recovery are STRONGLY recommended.
****************************************************************************
Disk /dev/sdf: 499056640 sectors, 238.0 GiB
Model: MR9361-8i
Sector size (logical/physical): 512/512 bytes
Disk identifier (GUID): E17E2ACE-4A78-49DC-8A8E-8E527BF9ADB3
Partition table holds up to 128 entries
Main partition table begins at sector 2 and ends at sector 33
First usable sector is 34, last usable sector is 500118158
Partitions will be aligned on 2048-sector boundaries
Total free space is 4774 sectors (2.3 MiB)
Number Start (sector) End (sector) Size Code Name
1 2048 206847 100.0 MiB EF00 EFI system partition
2 206848 239615 16.0 MiB 0C01 Microsoft reserved ...
3 239616 499095494 237.9 GiB 0700 Basic data partition
4 499095552 500115455 498.0 MiB 2700
desktop2 /home/user # gdisk -l /dev/sdg
GPT fdisk (gdisk) version 1.0.4
Warning! Disk size is smaller than the main header indicates! Loading
secondary header from the last sector of the disk! You should use 'v' to
verify disk integrity, and perhaps options on the experts' menu to repair
the disk.
Caution: invalid backup GPT header, but valid main header; regenerating
backup header from main header.
Warning! One or more CRCs don't match. You should repair the disk!
Main header: OK
Backup header: ERROR
Main partition table: OK
Backup partition table: ERROR
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: damaged
****************************************************************************
Caution: Found protective or hybrid MBR and corrupt GPT. Using GPT, but disk
verification and recovery are STRONGLY recommended.
****************************************************************************
Disk /dev/sdg: 499056640 sectors, 238.0 GiB
Model: MR9361-8i
Sector size (logical/physical): 512/512 bytes
Disk identifier (GUID): 02119722-C083-41EF-B9D0-6A92172793D7
Partition table holds up to 128 entries
Main partition table begins at sector 2 and ends at sector 33
First usable sector is 34, last usable sector is 500118158
Partitions will be aligned on 2048-sector boundaries
Total free space is 2669 sectors (1.3 MiB)
Number Start (sector) End (sector) Size Code Name
1 2048 1230847 600.0 MiB EF00 EFI System Partition
2 1230848 3327999 1024.0 MiB 8300
3 3328000 500117503 236.9 GiB 8300I'd like to be able to mount them and browse them, but mount says the partitions don't exist:
Code:mount: /mnt/fedora: special device /dev/sdg3 does not exist.Is there any way I can mount them in fstab?
Thanks,
Rich