if you have an iso-image of a cd/dvd you can easily mount it with [codesyntax lang=”bash”] sudo mount /path/to/an.iso /media/cdrom -t iso9660 -o loop [/codesyntax]

If you are using special ports or different usernames on different ssh-hosts you can simplify your connect commands with a .ssh/config file like the one in the following example. Host test1 HostName 8.8.8.8 Port 12345 User myname Host test2 HostName fubuntu User horaz Host * User root ssh test1 equals ssh myname@8.8.8.8 -p 12345. The

You have a RAID-1 with 2 disks and one disk fails. You change the failed disk and everything seems good as the disk starts recovery. But recovery stops as the old disk with data on it changes into state ECC-ERROR. So you have your data on a disk with status ECC-ERROR and a new disk

To check the status of a 3ware raid you can use the following commands tw_cli /c0 show This shows the configuration of the raid with id 0 including the status of all members.

If you want to manage a software raid-1 under debian after a disk failure you have to remove the failed disk from md-device change the failed disk with a new one copy over the partition table from the remaining good disk add the new disk to the md-device install grub on the new disk If

Ubuntu 11.10 comes with two panels. One on bottom and one on top with the time widget in the middle. If you want to add new widgets or move something on the panels try pressing ALT while right-clicking something on the panel.

in Ubuntu 11.10 all window buttons are aligned left and there seems no way to change this with a GUI tool. You can move the window buttons back to the right with the following command: gconftool-2 –set /apps/metacity/general/button_layout –type string “menu:minimize,maximize,close” After this your buttons are on the right side again. I didn’t have to