Usefull Commands: Hardware

Published 3 years, 9 months ago. 0 Comments Tags: CLI, hardware, kernel, linux, X.org.

Low-level format of the hda device:
```
dd if=/dev/zero of=/dev/hda
```
Same as above but for paranoïd, as random bits will be written 3 times before performing the “low-level format” (i.e. writting zeros):
```
shred --verbose --force --iterations=3 --zero /dev/hda
```
To add touchpad kernel support, add the following option to kernel at boot time:
```
psmouse.proto=imps
```
Sometimes, depending of the laptop I use, the mouse pointer disappear from the screen when I plug a VGA cable to a projector. In this case, I do a CTRL + ALT + F1, then I login as a normal user and finally I start a new X session:
```
startx -- :1
```