Linux - Configuration Grub

Good for the modification of preference launch dual boot in Grub, It is located in file / boot / grub / menu.

My question:
But upon confirmation of registration of change, it tells me I can not do for lack of "permission" ...

"You do not have the necessary permissions to save this file. Make sure you have typed the correct location and try again."

Thank you !!

you must change the file chmod putting

Quote:

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Code:

chmod a + w "absolute path"

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or for ubuntu you put a sudo in front of your command line.

Excuse me, what you use Linux?
if not stupid, you type the code in the terminal (in your accessories).

Code:

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Code:

 cd / cd /

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to return to the root
then

Code:

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Code:

 su

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after you type your admin password (if you see "root" is that good) you finally codes

Code:

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Code:

 chmod a+w boot/grub/menu.lst chmod a + w boot / grub / menu.lst

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give permission for everyone to change it.