Edit file advice
 

Hi,

I need to add

rootdelay=130 permanently to a file for my os to load, but i can't remember which file or how to edit.

Can you remind me please?
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Your boot-loader config file. If Ubuntu 10.04, probably best to set up a custom menu entry, else you'll keep losing your change. Have a read of this

Thanks,

I've found the file i need to edit

/boot/grub/grub.cfg

But I'm told:

Do not edit

and permission is denied anyway. I cant remember how I should proceed from here.

Go back and read all of that link - set up a custom entry.