Sat, 03 Jul 2010
Keywords: Windows floating menu items left screen dwm
Sometimes, under Windows, a floating menu item gets left on the screen. It's possible it may have something to do with Chrome. The only way to get rid of it is to reboot the machine. (Or maybe logging out works, I don't think I ever tried.) Well, obviously neither of those options is particularly attractive, but it turns out there is another. better option. Killing the dwm.exe process fixes the problem far more satisfactorily.
dwm.exe is the Desktop Window Manager which looks after thiings such as the 3D effects and transparencies. When it is killed it simply restarts itself.
Fri, 02 Jul 2010
Keywords: copy mysql database db directory files disk partition machine
I wanted to copy a MySQL database on a disk that used to be attached to a Ubuntu machine that died, to its replacement. It turns out not to be too difficult.
# stop mysql # mv /var/lib/mysql /var/lib/mysql.orig # cp -a /media/old-disk/var/lib/mysql /var/lib # chown -R mysql:mysql /var/lib/mysql
There were a couple of files in /var/lib/mysql that were owned by root - mysql_upgrade_info and debian-5.1.flag in my case. Change them back to being owned by root.
# start mysql
I actually had to reboot since something hung on restarting mysql. I have no idea why. Logs can be found in /var/log/mysql/error.log if required.