Remove extra entry from rEFIt [closed] - linux

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I created an extra partition in my macbook and then updated refit. After I couldn't start linux from usb again. Also after deleting partition entry is still appearing.
I allredy tried to reinstall refit.

Just execute this line in os x terminal
sudo fdisk -u /dev/disk0

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How to edit the "File Management Preferences" via command line in Centos Desktop [closed]

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is it possible to edit the
File Management Preferences
via vi or something ?
No, but it is possible with gconftool-2. Just frob the values under /apps/nautilus; look in gconf-editor for details.

How to lock my monitor with command in linux? [closed]

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I want to lock my desktop with a shell command. How can I do this?
What desktop environment are you using?
Using GNOME:
gnome-screensaver-command -l
Using KDE:
qdbus org.freedesktop.ScreenSaver /ScreenSaver Lock
Using xfce:
xflock4
if you have xscreensaver installer this will work:
xscreensaver -lock
Other then that it is depending on which DE you have.

how to make a multi boot dvd for linux [closed]

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Is it possible to make a single bootable dvd with multiple linux distros in it? we should be able to select which os to boot by a menu.
There are several tutorials for this:
http://www.justlinux.com/forum/showthread.php?t=150078
http://pcquest.ciol.com/content/enterprise/2005/105070101.asp

RAM value of a computer in LINUX [closed]

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how can we determine the RAM value of a computer in LINUX ?
regards
Inspect output of
free
lshw
Good luck

Reinstall Ubuntu [closed]

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Closed 12 years ago.
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I have a question.
I have partition for home with directory "abc". So /home/abc
If I will reinstall Ubuntu and create the same user "abc" my data will be OK? Will this folder be cleared and created again?
https://askubuntu.com/search?q=reinstall+home
Thanks #bobince, if it is a SEPARATE partition, no problem. If you are trying to install over that partition it is going to get wiped.

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