Installed by Ubuntu 14.04 LTS Installer:
I have installed Ubuntu 14.04 LTS Desktop onto my notebook PC, and I made a wrong decision to alter the file ownership and permissions from the root drive as I wanted to access my notebook files via my desktop PC.
The result is that now I cannot access my disk. My notebook has two hard drives, one flash boot flash drive enough for the system, and a hard drive for storage which I made into to partitions, /Home and /Var.
Below is a reference of commands with disk information output:
sudo fdisk -l /dev/sda
WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted. Device Boot Start End Blocks Id System /dev/sda1 ? 6579571 1924427647 968924038+ 70 DiskSecure Multi-Boot Partition 1 does not start on physical sector boundary. /dev/sda2 ? 1953251627 3771827541 909287957+ 43 Unknown Partition 2 does not start on physical sector boundary. /dev/sda3 ? 225735265 225735274 5 72 Unknown Partition 3 does not start on physical sector boundary. /dev/sda4 ? 2642411520 2642463490 25945 0 Empty Partition table entries are not in disk order
sudo cryptsetup -v luksDump /dev/sda1
Device /dev/sda1 is not a valid LUKS device. Command failed with code 22: Device /dev/sda1 is not a valid LUKS device.
sudo cryptsetup -v luksDump /dev/sda2
Device /dev/sda1 is not a valid LUKS device. Command failed with code 22: Device /dev/sda2 is not a valid LUKS device.
It seems that there's also /dev/sda3 and /dev/sda4, but these partitions contain nothing and /sda3 has 5 blocks, /sda4 has 25945 blocks being empty. This was all done via Ubuntu 14.04 LTS desktop installation.
Section 1. Command Output
sudo gdisk -l /dev/sda
GPT fdisk (gdisk) version 0.8.8 Caution: invalid main GPT header, but valid backup; regenerating main header from backup! Caution! After loading partitions, the CRC doesn't check out! Warning! Main partition table CRC mismatch! Loaded backup partition table instead of main partition table! Warning! One or more CRCs don't match. You should repair the disk! Partition table scan: MBR: MBR only BSD: not present APM: not present GPT: damaged Found valid MBR and corrupt GPT. Which do you want to use? (Using the GPT MAY permit recovery of GPT data.) 1 - MBR 2 - GPT 3 - Create blank GPT Your answer: 2 Disk /dev/sda: 1953525168 sectors, 931.5 GiB Logical sector size 512 bytes Disk identifier (GUID): 37C12505-96AB-4193-AD2F-A86ECEE7A8F9 Partition table holds up to 128 entries First usable sector is 34, last uable sector is 1953525134 Partitions will be aligned on 2048-sector boundaries Total free space is 3437 sectors (1.7 MiB) Number Start (sector) End (sector) Size Code Name 1 2048 1054685183 502.9 GiB 8300 2 1054685184 1953523711 428.6 GiB 8300
Section 2. Command Output
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 931.5G 0 disk |-sda1 8:1 0 811.6G 0 part |-sda2 8:2 0 346.1G 0 part sdb 8:16 0 22.4G 0 disk |-sdb1 8:17 0 512M 0 part /boot/efi |-sdb2 8:18 0 14G 0 part / |-sdb3 8:19 0 7.8G 0 part [SWAP]
sudo parted -l
Model: ATA WDC WD10JPVT-08A (scsi) Disk /dev/sda: 1000GB Sector size (logical/physical): 412B/4096B Partition Table: loop Number Start End Size File system Flags 1 0.00B 1000GB 1000GB ntfs Model: ATA LITEONIT LSS-24L (scsi) Disk /dev/sdb: 24.0GB Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags 1 1049kB 538MB 537MB fat32 boot 2 538MB 15.6GB 15.1GB ext4 3 15.6GB 8398MB linux-swap(v1) Warning: Unable to open /dev/sr0 read-write (Read-only file system). /dev/sr0 has been opened read-only. Error: /dev/sr0: unrecognised disk label
sudo fdisk -l /dev/sda
Disk /dev/sda: 1000.2 gb, 1000204886016 bytes 255 heads, 63 sectors/tracks, 121601 cylinders, total 1953525168 sectors Units = sectors of 1 * 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x2052474d This doesn't look like a partition table Probably you selected the wrong device. Device Boot Start End Blocks Id System /dev/sda1 ? 6579571 1924427647 968924038+ 70 DiskSecure Multi-Boot Partition 1 does not start on physical sector boundary. /dev/sda2 ? 1953251627 3771827541 909287957+ 43 Unknown Partition 2 does not start on physical sector boundary. /dev/sda3 ? 225735265 225735274 5 72 Unknown Partition 3 does not start on physical sector boundary. /dev/sda4 ? 2642411520 2642463490 25945 0 Empty
*In this case (/dev/sdb) is my system boot drive, while (/dev/sda) is the storage hard drive in which I'm trying to remount, and it has been set as 'DiskSecure Multi-Boot' by Ubuntu 14.04 LTS Installer.
Now, why is it that '#lsblk' shows differing sizes (even greater than the disk drive max size)?
My booting hard drive (/dev/sdb) is already set as the boot drive with GPT. Do I still need a GPT partition on my non-booting hard drive?
Also how may I mount my storage drive with the two partitions if '#parted -l' is only able to see one partition that is spanning the whole drive as ntfs?
Section 3. Command Output
sudo blkid /dev/sda
/dev/sda: UUID="58DEF9CB30F761D5" TYPE="ntfs"