Language Selection

English French German Italian Portuguese Spanish

Upgrade from 32-bit to 64-bit Fedora Linux without a system reinstall

Filed under
Linux

One great thing about Linux is that you can transplant a hard disk from a machine that runs a 32-bit AMD XP processor into a new 64-bit Intel Core 2 machine, and the Linux installation will continue to work. However, if you do this, you'll be running a 32-bit kernel, a C library, and a complete system install on a processor that could happily run 64-bit code. You'll waste even more resources if your new machine has 4GB or more of system memory, and you'll be forced to either not use some of it or run a 32-bit Physical Address Extension (PAE) kernel. Cross-grading to the 64-bit variant of your Linux distribution can help you use your resources more wisely.

This happened to me with a Fedora Linux installation, and I finally decided to migrate. Over the years, I've talked to Fedora enthusiasts and Red Hat employees at Linux conferences about doing a cross-grade to 64-bit. I generally heard one solution: reinstall. However, I like to reserve this approach for when a critical number of system disks fail at once and I have absolutely no other option. I wanted to see if a cross-grade was feasible at a whole distribution level.

More Here




More in Tux Machines

Matching databases to Linux distros

Relational database management systems (RDBMSs) aren’t the sort of thing to get most folk out of bed in the morning – unless, of course, you happen to think they’re one of the most brilliant concepts ever dreamed up. These days you can’t sneeze without someone turning it into a table value in a database somewhere - and in combination with the freely available Linux operating system, there’s no end to them. Most Linux distros make it almost trivial to add popular DBMSs to your system, such as MySQL and MariaDB, by bundling them in for free in their online app stores. But how do you tell which combination - which Linux distro and which DBMS - will give you the best performance? This week we've revved up the Labs servers to ask the question: what level of performance do you get from OS repository-sourced DBMSs? Read more

The Curious Case of Raspberry Pi Consumerism

I find the attitude of many within the Raspberry Pi community to be strange and offensive. I first discovered this odd phenomenon (odd because it contradicts the ethos of the project's academic foundations) back when it first started, as many within the Raspberry Pi community took an extremely hostile attitude toward academic freedom, apparently in defence of various parties' highly dubious intellectual monopolies (Broadcom and MPEG-LA, for example). I pointed out the irony and hypocrisy of their attitude at the time, explaining that they were more than happy to leech Free (as in freedom) Software for their own benefit, but then balked at the prospect of freely sharing the results, and in particular this contradicted their stated academic goal of facilitating better computer education in UK schools, an environment that rightly demands open access to knowledge. Read more

Google Chrome 38 Beta Brings New Guest Mode and Easier Incognito Mode Switching

The developers have explained that the user switching feature has been redesigned and it will make changing profiles and into the incognito mode a lot simple. They have also added a new experimental Guest mode, a new experimental UI for Chrome supervised users has been implemented, and numerous under-the-hood changes have been made for stability and performance. "This release adds support for the new element thanks to the hard work of community contributor Yoav Weiss, who was able to dedicate his time to implementing this feature in multiple rendering engines because of a successful crowd-funding campaign that raised more than 50% of its funding goal." Read more

PfSense 2.1.5 Is a Free and Powerful FreeBSD-Based Firewall Operating System

PfSense is a free network firewall distribution based on the FreeBSD, it comes with a custom kernel, and a few quite powerful applications that should make its users’ life a lot easier. Most of the firewall distros are Linux-based, but PfSense is a little bit different and is using FreeBSD. Regular users won't feel anything out of the ordinary, but it's an interesting choice for the base. The developers of PfSense are also saying that their distro has been successful in replacing a number of commercial firewalls such as Check Point, Cisco PIX, Cisco ASA, Juniper, Sonicwall, Netgear, Watchguard, Astar, and others. Read more