Linux, programming and more
Upgrading Fedora from Version Spherical Cow version 18 to the latest Schrödinger’s Cat version 19.
The official Fedora documentation is a good friend.
All following steps as root or with sudo;)
1. Backup your system
2. Do the upgrade
1 2 | yum install fedora-upgrade
fedora-upgrade |
You will be asked at the end for a reboot
After reboot update yum to latest version available in your Fedora version
1 | yum update yum |
3. Clean up
1 | yum clean all |
Enjoy Schrodinger’s Cat
When replacing a failed disk you have to create partitions on the new one. Or simple copy them from the old one.
Clean and prepare new disk:
1 2 | dd if=/dev/zero of=/dev/sdc bs=1024 count=1024 parted --script /dev/sdc mklabel msdos |
Create Partitions overviews from old disk:
1 | sfdisk -d /dev/sda > partitions-sda.txt |
Now read in the crated partition table:
1 | sfdisk /dev/sdc < partitions-sda.txt |
Legend:
old broken disk: /dev/sda
new working one: /dev/sdc
Discard a stock Mailman message from a command line:
1 2 | cd /var/lib/mailman bin/discard data/heldmsg-your-listname-11.pck |
After installing a Solid State Drive in a Windows 7 machine to improve performance in contrast to a normal hard disk drive. I spend some time to find information about the TRIM-support.
A TRIM command allows an operating system to inform a solid-state drive about blocks of data that are no longer considered in use and can be wiped internally.
This technique improves the performance of a ssd drastically.
execute from (CMD) command line with Administrator privileges:
1 | fsutil behavior query DisableDeleteNotify |
DisableDeleteNotify = 0 will mean that TRIM is activated
DisableDeleteNotify = 1 TRIM is deactivated
Actuals Debian 7 brings a stable Kernel version 3.2.0-4. For some development reasons I need a newer Kernel version so in this way was this tutorial created.
Install the needed packages for the compilation process:
1 | apt-get install kernel-package fakeroot build-essential ncurses-dev |
1 | wget https://www.kernel.org/pub/linux/kernel/v3.x/linux-3.10.tar.xz |