I've been having problems with my HDD since I tried dual booting ubuntu 14.04 with windows 8.1. When I was installing from the ubuntu installer I was receiving "input/output error during write on /dev/sda".
I can't do anything in gdisk, it seems that both the main and the back up GPT header are corrupt. It seems that the back up header is unable to save whenever I do anything and try to write to the disk. At this point, I've already lost all my data, I don't have any of my windows partitions, and I just want to start fresh and be able to reinstall either windows or linux. Any help is greatly appreciated
When I try using fdisk:
$ sudo fdisk /dev/sda
I get "The backup GPT table is corrupt, but the primary appears OK, so that will be used." I tried to use
g create a new empty GPT partition table
w write table to disk and exit
I get "failed to write disklabel: Input/output error"
v verify the partition table
No errors detected.
Header version: 1.0
Using 0 out of 128 partitions.
A total of 1953525101 free sectors is available in 1 segment.
$ sudo gdisk /dev/sda
Warning! Error 5 reading partition table for CRC check!
Warning! One or more CRCs don't match. You should repair the disk!
Partition table scan:
BSD: not present
APM: not present
Caution: Found protective or hybrid MBR and corrupt GPT. Using GPT, but disk verification and recovery are STRONGLY recommended.
when I enter v to verify my disk i get
Caution: The CRC for the backup partition table is invalid. This table may
be corrupt. This program will automatically create a new backup partition
table when you save your partitions.
Identified 1 problems!
I have tried loading back up and main gpt tables but no matter what I do, when I enter w to write table to disk and exit I receive this error:
Unable to save backup partition table! Perhaps the 'e' option on the experts' menu will resolve this problem.
Warning! An error was reported when writing the partition table! This error
MIGHT be harmless, or the disk might be damaged! Checking it is advisable.