How can i fix my dual boot if i have selected the wrong one? P.ex. Grub-Customizer allow you to choose wich boot do you want when you turn your pc… but, how can i fix if i select the wrong choice!?
Ubuntu – Grub-Customizer (How to fix your dual-boot in case you miss the right boot option)
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Ok .. Decided to give it Grub Customizer a try on a VM box so I didn't screw anything up. I was able to change the default kernel without any issues. Here is how I did it.
In the General settings tab I clicked the pulldown for predefined. It listed all the kernels available. I chose the 3.19.0-58-generic and clicked save ... I rebooted into that kernel. Even though I was worried about it putting the name instead of the numeric value .. it seems to work fine.
So you would have no problems doing the same thing .. just choose the generic one for the kernel you want to use .. not the (upstart) or (recovery mode)
In your case .. the pulldown would probably say either Ubuntu, with Linux 4.4.0-21-generic or Advanced options for Ubuntu>Ubuntu, with Linux 4.4.0-21-generic
Best Answer
(convert comment to answer)
Boot cd with your Ubuntu (If you have Natty 11.04 you can simply use your 10.04 cd...) try the experiment mode
Then install (as you have made in your system)
Grub-Customizer packages
in update manager select the option "open source code software (Universal)"
In the terminal, install the packages (
sudo apt-get install grub-customizer)Access to Grub and select root.
Your boot option (in case you have dual or triple boot) will appear again