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I bought a MSI laptop recently and I struggled to install Ubuntu. Now I have it installed and I have two problems. One of the is that I need to modify the grub file but when I try(update-grub) it doesn't let me change the file it says this: 

root@equipo-GL62-6QF:~# update-grub  
Generando archivo de configuración grub...
/etc/grub.d/10_linux_proxy: 3: /etc/grub.d/10_linux_proxy: /etc/grub.d/bin/grubcfg_proxy: Permission denied

These are the only changes I made into the grub file:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=force apm=power_off"

Does anyone know why is this happening? If I don't modify these lines I won't be able to shutdown the laptop without a crash.

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1 Answer 1

Reset to default
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The problem seems to be with the specific file /etc/grub.d/bin/grubcfg_proxy. Press Alt + F2 or open a terminal and run gksu nautilus. Browse to /etc/grub.d/bin/ and edit the permissions of grubcfg_proxy.

  • It should run fine but if sudo update-grub displays error for some other file, repeat the process for that file.
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