Mészáros Tamás's blog

CentOS / Ubuntu minimal server install for oVirt (howto)

1. Grab a minimal distribution ISO image and download it to your oVirt ISO domain

CentOS 7: CentOS-7-x86_64-Minimal-.....iso) from http://isoredirect.centos.org/centos/7/isos/x86_64/

Ubuntu: mini.iso from http://cdimage.ubuntu.com/netboot/

2. Create a virtual machine (512MB RAM is enough at first) and boot it from the downloaded ISO image

Don't forget to assign a network interface (and a IP address or a working DHCP server).

Migrating physical machines to oVirt with relax-and-recover (p2v using rear)

Relax-and-recover offers a fairly easy way to migrate physical (UNIX) machines to a virtualized environment.

oVirt 3.6 + CentOS7 experiments

... recording random tips while installing/configuring oVirt on CentOS 7 ...

Installation tips

I decided to follow the self-hosted engine setup with local nfs4 storage...

Easy mapping+mounting rbd images on CentOS 7 with Systemd

Warning: Things change a lot around Ceph. The guide below might not work with the current release.

Following Laurent Barble guide about mapping rbd images without installing ceph-common I've played with the systemd + fstab on CentOS7 (other distributions with kmod-rbd and systemd might also support this method). Systemd adds some interesting new features to regular fstab entries to automount filesystems.

UNIX for old (atom-based) netbooks

We have an Acer Aspire One (Intel Atom with 1GB RAM) which was running Windows XP. Since it is no longer supported by MS I've spent some time to find a replacement.

For this hardware MS has no viable alternative I know of. There are, however, several Linux distributions that aim old netbook hardware.

I've checked these:

Ubuntu Gnome Desktop

After dropping Fedora I switched to Ubuntu Gnome Desktop. It works pretty well, even my kids can use it.
This page contains some random tips about it. See my other pages about Gnome and Fedora on Lenovo.

Forget Fedora

I've been using Fedora for a couple of years now. I was kind of happy with it. I liked Gnome3 and I could handle the minor annoyances. It was stable enough to serve as my work, travel and home opsys.

As F16 reaches its EOL, I installed F18 on a clean PC. Well....

It is a disaster

The installer tries to be simple and intuitive but it is oversimplfied and not handy at all.
It crashed two times before I managed to install Fedora. F16 installed on the same PC without any problems.

Linux laptop tips (Lenovo T420)

This a set of random tips, suggested settings and programs I've collected during the setup of Fedora on a Lenovo T420 notebook.


  • Btrfs has many advantages over ext4 but it is not quite stable yet.

Gnome3 - worth a try

I was using KDE until it broke me down with its poor networking (you cannot open+save an Openoffice document from/to the network), then I switched to Gnome + Compiz Fusion which is actually quite good but a little bit unstable sometimes (at least with the open source ATI driver).

I watched a video introducing Gnome3 and its new features and read an excellent article about its basics. I gave it a try by installing Fedora15 on my home desktop and laptop.

Vmware Workstation (Player) and Linux

VMWare Workstation has some problems with Linux. I am collecting solutions on this page.

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