This question already has an answer here:
I can not access my 1 TB HDD in any system ubuntu or windows after I recently tried to backup my ubuntu system on the external HDD using inbuilt applications (Backups, Deja Dup) . Backup was taking place smoothly in the middle of that it stopped working and I force quit all operations and restarted my laptop but now the hard disk can not be accessed and making my laptop hang whenever trying to access it.
As the data is important to me I tried using Photorec running it on a live usb stick. I went through this tutorial step by step, want to mention, each step was taking more than half an hour sometimes a whole hour but as they said, to be patient I was following each step carefully, now at the recovery step most of the sectors are showing reading error and estimated time is 133895h54m25 and keeps on increasing. Right now it is
> Photorec 7.0 Data Recovery Utility, April 2015Christophe GRENIER <email@example.com>http://www.cgsecurity.orgDisk /dev/sdd - 1000 GB / 931 GiB (RO) - Seagate BUP Slim BK Partition Start End Size in sectorsP unknown 0 0 1 953869 45 15 1953525167 Pass 0 - Reading sector 20631/1953525167, 0/10 headers found Elapsed time 1h27m30s -Estimated time to completion 132332h45m05 Error reading sector 21528 >
What should I do in this situation? thanks.