Data Recovery with ddrescue: Not Even Printing Terminal Anything?

Title: Recovering Data from an Unmounted Hard Drive using ddrescue

In this article, we will guide you through the process of recovering data from an unmounted hard drive using the ddrescue tool. This guide assumes that your hard drive is located at /dev/sdc according to the lsblk command.

Prerequisites

Before we begin, ensure that your system has the ddrescue tool installed. If it's not installed, you can install it using your distribution's package manager. For example, on Ubuntu, you can use the following command:

sudo apt-get install ddrescue

Recovering Data

1. First, create a log file and a rescue file for ddrescue. You can name them as per your preference, but for this example, we'll use logfile.log and rescuefile.

ddrescue -n /dev/sdc /path/to/imagefile.img /path/to/logfile.log /path/to/rescuefile

In the above command, -n tells ddrescue not to write data to the output file, but instead, only read it. This is useful when you want to create a log file and rescue file for future use.

2. Once the log file and rescue file are created, you can start the recovery process with the following command:

ddrescue -r3 /path/to/imagefile.img /dev/sdc /path/to/logfile.log /path/to/rescuefile

In the above command, -r3 tells ddrescue to retry reading three times for each bad block. You can adjust this value according to your needs.

Understanding the Output

The ddrescue tool will output a lot of information, including the progress of the recovery, the number of bad blocks encountered, and the recovery status. Here's an example of the output:

ddrescue: reading from /dev/sdc, 64 kB at a time
ddrescue: log file is /path/to/logfile.log
ddrescue: rescue file is /path/to/rescuefile
ddrescue: trying to read 31284800 kB (30 GB)
ddrescue: [  0] /dev/sdc:  0 kB rescued at time 1599325553, 0 kB/s
ddrescue: [  1] /dev/sdc: 32 kB rescued at time 1599325554, 32 kB/s
...

Post-Recovery Steps

After the recovery process is complete, you can mount the image file and access your data. If you encounter any issues, you can refer to the log file created by ddrescue for more information.

References

• ddrescue Manual: https://www.gnu.org/software/ddrescue/manual/ddrescue_1.html
• Recovering Data from a Hard Drive: https://www.tecmint.com/recover-data-from-unmountable-hard-drive-using-ddrescue/
• Recovering Data from a Dead Hard Drive: https://www.howtoforge.com/tutorial/recovering-data-from-a-dead-hard-drive-with-ddrescue/