#Check for bad sectors mac software series#

So I recommend you leave the computer and prepare a good series marathon if your disk is badly damaged. We just have to have a lot of patience for this as depending on the damage and the size of the disc it can take from hours to days. In my case it is a disk to which the information has already been backed up, so I have no problem with the data so all the data will be overwritten, block by block I execute the following: sudo badblocks -wvs /dev/sdb

It puts us in non-destructive mode, this means that the damaged sectors will be recovered and the information on the hard disk will not be damaged or deleted. It shows us the process of scanning the disk, showing us the sectors already checked. Mount point already identified we proceed to execute badblocks from the terminal, in my case the disk that I am going to repair has the mount in / dev / sdb sudo badblocks -s -v -n -f /dev/sdb Once this is done, we will see the mounting point that our disk has, now it is important that the disk that we are going to analyze and repair with badblocks is not in use, so it is the disk where you currently have your system, I recommend you use a Live CD / USB of your system.

2 How to isolate bad sectors of the hard drive?įor the use of this tool the first thing is to identify the disk that we are going to repair, for this we will open a terminal and execute: sudo fdisk -l.

1 Use of badblocks to repair hard drive.

Now inside d and the tools that we will use this badblocks, this powerful tool will help us locate those sectors with failures or that are no longer optimal for storing information and try to recover them. I must mention that The following tools will only detect the damages in the sectors Therefore, if there is any physical damage to the disk or problems with the heads, this type of damage can no longer be easily repaired, so it is recommended that you change the hard disk. In Linux they do the same thing that is to encapsulate or isolate the sectors that are damaged, in this way the disk will avoid storing the information in these sectors that are no longer optimal for it. While in Linux we have some very effective tools and quite powerful for this type of task, this is excellent since we are not going to break our heads looking among the many that exist for Windows and most of them are based on the same method. I have recently given myself the task of maintaining my equipment, so, within the tasks, identify that my hard drive already has some bad sectors which has been the cause that has slowed down its operation a bit.