How to move a physical volume on LVM
If you need to move data from one disk to another one you could think in copying the data with cp, rsync, or any other tool, and then umount the partition,...
SysAdmin
Debmirror problem: gpgv: Can’t check signature: public key not found
I have a mirror where Debian and Ubuntu packages are hosted, so people in the internal network can upgrade their software using this mirror. But the other...
How to create a ramdisk in Linux
A ramdisk is like a disk partition but running directly from the system’s RAM. All data read and written will be faster, and as drawback all data will be e...
How to build a Debian packge in 3 steps
There are several ways of making a Debian package. In this article you will learn how to create it using equivs tools, to create a simple package (for exam...
How to make big file system partitions
Sometimes you’ll see on hard drives some inconsistencies with size, used value and the available space. The problem occurs when the operating system report...
Daemontools or how to relaunch a process if it dies
Maybe you have been in the situation where a process (program or service) in the system dies or ends abruptly and needs to be relaunched no matter what. Y...
Logical Volume Manager (LVM)
In the traditional disk partitioning scheme, administrators plan ahead the use of each partition. For instance, a laptop with 120 GB hard drive, 1 GB RAM ...
Kernel compiling the old-fashion way
There are several reasons for compiling a kernel. For instance you might be interested in adding support for a new hardware or functionality, or for tuning...
Installing VirtualBox Guest Additions
After installing your virtual machine in VirtualBox you should install the Guest Additions…what is that for? It lets you use your virtual machine at fullsc...
apt vs aptitude
Both, apt (apt-get, apt-cache) and aptitude are commands for package administration from the text on Debian and spin-off distros like Ubuntu. In fact, both...