Staring with Fedora 18, the hostname is longer set it /etc/sysconfig/network but in /etc/hostname. To manipulate the hostname there’s a small tool named hostnamectl which is part of Fedora’s systemd package. The following table (taken from the Fedora 18 Release Notes) shows a few basic hostnamectl commands to set or change a host’s name: See also hostnamectl manpage.
The Arudino IDE Support package also contains different bootloaders for quite a few variations of the Generation 7 Electronics RepRap controller board. The Arudino IDE Support wiki page at the RepRap wiki also contains a paragraph on how to flash the bootloader onto the Gen7 board with avrdude. It suggest to write the fuses first, the flash the hex file… Read more »
To remove entries from the places panel in Dolphin, press F9 to open the panel, right-click on the entry and select Remove. Alternatively, you can simply edit ~/.local/share/user-places.xbel.