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locale

Sun, 21 Feb 2021 00:00:00 +0000

Per user configuration #

The manual man 5 locale is very brief, but it lists man 7 locale under SEE ALSO. The main purpose of the manual is to describe the format of /etc/locale.conf. The xdg-standard however also allows per-user locale settings in a file ~/.config/locale.conf with a similar format.

LANG=de_DE.utf8
LC_CTYPE=de_DE.utf8
LC_NUMERIC=de_DE.utf8
LC_TIME=de_DE.utf8
LC_COLLATE=C
LC_MONETARY=de_DE.utf8
LC_MESSAGES=en_US.utf8
LC_PAPER=de_DE.utf8
LC_NAME=de_DE.utf8
LC_ADDRESS=de_DE.utf8
LC_TELEPHONE=de_DE.utf8
LC_MEASUREMENT=de_DE.utf8
LC_IDENTIFICATION=de_DE.utf8
LC_ALL=de_DE.utf8

fedora

Thu, 03 Dec 2015 04:28:24 +0100

How to migrate from a virtual machine to a native host #

Normally one might simply take a disk, put it in another computer and start it there as a virtual machine e.g. by using kvm, xen or virtualbox. But in some cases the system hangs while booting and if you are very patient you will eventually get a message, that the UUID of the disk could not be found. The dracut shell helped me to find the cause of that error: ls /dev/ simply showed no active disk devices (were you would expect hdX, sdX or vdX devices). This implies that their drivers are missing in the kernel. As this whole rescue shell comes from the initramfs image: How to add those drivers to it? Well: Start your virtual machine again using a virtual IDE interface and issue:

network

Sat, 04 Jul 2015 11:44:56 +0200

netctl #

Using netctl is the preferred way over NetworkManager for servers. The main reason is, that normal users should not be allowed to alter the network configuration in case of a server.

VLANs #

VLANs are used when you only have one Network adapter and want to use it for multiple ip networks at a time. A router with VLAN support is also needed. TCP-Packages get a special Tag attached, which identifies the virtual interface they belong to. With netctl it is pretty simple to setup and examples can be found unter /etc/netctl/examples/.

arch

Wed, 08 Apr 2015 14:55:41 +0200

This is specifically written for Arch Linux users, even so many of those methods can be applied to other distributions as well, because they are using the same packages. Little changes might be needed depending on the configuration of those packages.

force preboot environment #

In order to get into the base hook of mkinitcpio even so nothing is broken

break=premount

can be specified as kernel parameter. It is called APPEND ... break=premount when using syslinux as boot manager.

network bridging

Tue, 30 Dec 2014 00:47:57 +0100

One major case in which you want network bridging is when using virtualization. Because it allows you to expose your virtual machines to the rest of the network as if they were physically there. One limitation I found is that the bridge cannot be configured to have an own ip address. This justified using network bonding even less in my case, but read on!

NetworkManager #

Current versions of Network Manager let you configure bridges with the mouse, but they ain't well pre configured and you have to manually disable dhcp on the bridge.