GNU / Linux distributions there are many. This can work against when making the decision to migrate from the operating system, or simply to start investigating. Because of course, to know what distro we are left with, we must first test it and check if it recognizes all the hardware, what applications it has, what package managers it uses, etc.
But luckily there are LiveCD or live CDwhich is nothing but an operating system stored on a CD Able to run without installing or altering the equipment. To do this, it uses RAM as a virtual disk and the CD player as a file system.
Using a LiveCd to test the various GNU / Linux distributions is the ideal option to start migrating, as they are very easy to find, both on the Web and in magazine stands.
Also, there is no installation, so there is no need to touch the hard drive, or follow complicated procedures. Thus, data, partitions or operating systems are not lost.
In short, LiveCD distributions try to get GNU / Linux to users from other operating systems.
How to use them?To make use of a LiveCD on our computer, first of all we must download the .iso (disk image) and burn it to a CD or DVD. After this, we reboot the PC telling it to boot from the CD drive. In this way, the team will detect the LiveCD and start booting the operating system.
Most Live distributions usually have advanced hardware recognitionSo if you have a fairly new computer, it will surely work wonders.
Some distros have an installer to be able to be installed, being able to know the real performance of the distro, since the transfer speed of reading units (CD / DVD) is much lower than that of hard drives.Which to choose?The best-known Live distribution is Knoppix, based on Debian, which reinvented the LiveCD in 2003 after the Yggdrasil attempts in 1995 and DemoLinux in 2000.
But if what you are looking for are recommendations, I advise you to start testing the friendliest ones, such as Ubuntu and its derivatives, Xubuntu and Kubuntu; Fedora, OpenSuse, Linspire, GnewSense, etc.
And how to forget about Argentine live shows: Tuquito, Ututo and Musix.
And if what you want to do is revive those dusty hoards, I recommend Puppy, a Live distribution capable of running on a Pentium 200 Mhz.
And if you want more, I recommend Debian (father of so many distributions, including Ubuntu) or Gentoo.