[SOLVED] how to fix booting linux?

windstory · 11-08-2015, 07:34 AM

I've install centos 7.1 x64 as guest on windows 10 x64' virtualbox as host.

And I installed xampp and updated, and installed Virtualbox' guest additions.

Then, After rebooting I got wierd screen as this photo.

I want to boot the 3rd one.

Please let me know how to fix this.

Thanks in advance.

Emerson · 11-08-2015, 07:55 AM

Hit 'b' key?

berndbausch · 11-08-2015, 08:17 AM

Quote:

Originally Posted by Emerson

Hit 'b' key?

Or ENTER.

But if your question is how to boot the third line without interrupting the boot process and interacting with the boot loader, you will have to set the default boot entry.

See the grub manual http://www.gnu.org/software/grub/man...b.html#default
or the very good Arch Linux wiki on this subject https://wiki.archlinux.org/index.php/GRUB#Configuration

jamison20000e · 11-08-2015, 08:26 AM

Hi.

Yes. In Debian it's in /etc/default/grub

Code:

GRUB_DEFAULT=0

0 is the first line so make it say 2, need sudo to do that then (at lest here) run:

Code:

update-grub

windstory · 11-08-2015, 10:20 AM

My box' grub shows this.

Code:

GRUB_TIMEOUT=5
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet"
GRUB_DISABLE_RECOVERY="true"

windstory · 11-08-2015, 10:21 AM

Quote:

Originally Posted by berndbausch

Or ENTER.

But if your question is how to boot the third line without interrupting the boot process and interacting with the boot loader, you will have to set the default boot entry.

See the grub manual http://www.gnu.org/software/grub/man...b.html#default
or the very good Arch Linux wiki on this subject https://wiki.archlinux.org/index.php/GRUB#Configuration

Thanks for your kindness, but it's so difficult for me.

jamison20000e · 11-08-2015, 10:59 AM

Interesting. I assume save will remember which one you arrowed up or down to last? I will have to try that,

I have my grub set to 3 so it boots to (2nd one in my GRUB list) GRUB-invaders if I miss the GRUB_TIMEOUT=15 that I set,,, I used:

Code:

sudo vi /etc/default/grub

...

windstory · 11-08-2015, 11:06 AM

Quote:

Originally Posted by jamison20000e

Interesting. I assume save will remember which one you arrowed up or down to last? I will have to try that,

I have my grub set to 3 so it boots to (2nd one in my GRUB list) GRUB-invaders if I miss the GRUB_TIMEOUT=15 that I set,,, I used:

Code:

sudo vi /etc/default/grub

...

jamison20000e, you're right! It works!

At "/etc/default/grub", I changed "saved" to"4".

Quote:

GRUB_TIMEOUT=5
GRUB_DEFAULT=4
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet"
GRUB_DISABLE_RECOVERY="true"

And after reboot, I got my booting screen.

Thanks a lot!

jamison20000e · 11-08-2015, 11:32 AM

Cool.