Editing Boot Menu

Nukester

Everytime I boot Ubuntu, it goes to a menu which has Regular Ubuntu then 2 other lines( Ubuntu kernel 2.6.17-10-generic (recovery mode),Ubuntu, memtest86+). I am wondering how I remove those 2 entries and make it so that the first choice is always selected automatically. Are there any risks, and also, what are those other 2 options for?

roobal

Nukester wrote:

I am wondering how I remove those 2 entries

Edit /etc/default/grub file and uncomment the line:

# GRUB_DISABLE_LINUX_RECOVERY="true"

It should look like this one:

GRUB_DISABLE_LINUX_RECOVERY="true"

And it removes recovery mode from list. To remove memtest make this command:

sudo chmod -x /etc/grub.d/20_memtest86+

and make it so that the first choice is always selected automatically.

Once again in /etc/default/grub file in line:

GRUB_DEFAULT=0

You define which system from list will boot automatically.

After that you must update your Grub configuration:

sudo update-grub

And that's all

mfillpot

roobal gave great information.

The risk associate with your actions would be inaccessibility to the recovery console, which unless you play around a lot with the administrative features it should not impact you.