Unable to boot the operating system after trying to sign kernel - Swift 5

Juncheng712

I was trying to use virtual box in my local machine and then I was informed that I need to sign the kernel to continue using Virtualbox. After googling I follow this:

https://gist.github.com/reillysiemens/ac6bea1e6c7684d62f544bd79b2182a4

The problem comes after step 4. I was instructed to reboot again after clicking ok.

When the machine reboots, it stucks at the Acer logo and the operating system which is Ubuntu is not able to boot. Following some guide on google, I am able to enter the BIOS and do some configurations. However, it ends up in showing up initramfs command line. I think I have accidentally corrupted the initramfs in the process of signing my kernel.

Initramfs command line: https://imgur.com/a/s4IH6Cx

I am using Ubuntu 20.04 and Acer Swift 5 N19H3. Any idea to wake up my laptop? I need it for my studies.

​//Edited the content to add model name.

Leostat

Did you follow the guide exactly? If so you may have foobard your system as it's for Fedora boot not ubuntu

Although I don't get why as if you just did step 4 it's just importing a key 🤔 but looking at the first log line it looks like importing it has foobard the efi 

It may be easier to boot into a live CD, copy off files you need and re install . What setting did you change in the UEFI?

Else , you could try disabling secure boot, long shot but maybe the signing keys get messed up