Score:0

Ubuntu

Ubuntu is opening in a black screen

Willy Gooris

10/20/23, 8:24 AM

Yesterday mi wife did an update and halfway the update she closed the computer. When starting up again, the screen remains black with only a "-" in the left top corner. However, if i start in recovery mode, the screen comes on normally.

Ubuntu is installed on an acer aspire 7520 I see also: Ubuntu with Linux 4.15.0-194-generic

Then i start in recovery mode, and used all the tools that are available for eventual recovery namely: clean, dpkg, fsck, grub and network,
Wat can I do? Do you need more information? Thanks, PS, I am not very good on computer.

450

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boot

screen

David

10/20/23, 8:28 AM

A version of Ubuntu might help. That is a kernel version you have given not the OS. The update "might" have been a new kernel mine did a kernel update in last day or two. If you can get to the Grub menu you can choose advanced options and try and load a slightly older kernel.

Willy Gooris

10/20/23, 8:45 AM

I have Ubuntu 18.04.6 LTS

Willy Gooris

10/20/23, 8:45 AM

How can i get to the grub menu?

David

10/20/23, 8:59 AM

If it is not dual boot you can still access the Grub menu by pressing shift as it is starting up the OS. You may have to try more then once to hit the right spot in the startup.

Willy Gooris

10/20/23, 9:28 AM

I did start with the Shift key en used : Linux 4.15.0-188-generic in stead of Linux 4.15.0-194-genericand. That worked. How can I make it start in Linux 4.15.0-188-generic from scratch?

David

10/20/23, 9:46 AM

This site will give the step by step. Ignore the first step as you already have the kernel that works on the disk. https://gist.github.com/chaiyujin/c08e59752c3e238ff3b1a5098322b363

Will

10/20/23, 10:04 AM

@David - I think that’s worthy of an upvote if you want to post as an answer.

David

10/20/23, 10:11 AM

@Will was thinking same thing

David

10/20/23, 11:32 AM

@Will done and thanks.

Score:1

Ubuntu

David

10/20/23, 10:19 AM

After finding that your Ubuntu machine will work better after changing the active kernel you may want to make that the default kernel.

Follow these steps. I have also included a web site for reference.

Install the default kernel:

sudo apt install @the kernel you want@

Set GRUB Default Kernel

Find entrance from /boot/grub/grub.cfg Get the $menuentry_id_option: grep submenu /boot/grub/grub.cfg

Example output:

submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-4591a659-55e2-4bec-8dbe-d98bd9e489cf' { 'gnulinux-advanced-4591a659-55e2-4bec-8dbe-d98bd9e489cf' is what we need. Get the specific kernel option: grep gnulinux-4.15.0 /boot/grub/grub.cfg

Example output:

menuentry 'Ubuntu, with Linux 4.15.0-126-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-126-generic-advanced-4591a659-55e2-4bec-8dbe-d98bd9e489cf' { 'gnulinux-4.15.0-126-generic-advanced-4591a659-55e2-4bec-8dbe-d98bd9e489cf' is what we need.

Set GRUB_DEFAULT in /etc/default/grub Join two entry strings obtained above by '>', set to GRUB_DEFAULT. GRUB_DEFAULT='gnulinux-advanced-4591a659-55e2-4bec-8dbe-d98bd9e489cf>gnulinux-4.15.0-126-generic-advanced-4591a659-55e2-4bec-8dbe-d98bd9e489cf'

Update grub sudo update-grub

Reboot the machine

web link for reference. https://gist.github.com/chaiyujin/c08e59752c3e238ff3b1a5098322b363

+ 2

Willy Gooris

10/20/23, 1:49 PM

Dear All, Thank you for all the help. with reading al the help notes, i found wat to do.

David

10/20/23, 1:53 PM

If the answer helped please accept the answer.

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Ubuntu is opening in a black screen

Post an answer

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