Are you facing an error when you boot up Linux mint (an operating system based on Ubuntu) saying, “ Initramfs unpacking failed: Decoding failed”. Do not worry I will help you solve the problem. This error does not do a lot of harm but it does delay your boot up time. So, how to fix this? Well it is quite easy, but you will have to be conscious, what you are doing.
Here is a picture of error message:-
Steps to fix this:-
Step1: Open Terminal
Step2: Type this command
A file will open asking for your authentication. Provide it.
Step3: Find a line saying COMPRESS=lz4
Step4: Change COMPRESS=lz4 to COMPRESS=gzip
Step5: Save that file and close the file.
Step6: Now type this in the terminal:
sudo update-initramfs -u
Step7: Provide password
It will run some processes. After completion
Step8: Reboot your system
I hope this helped you out. Comment down for more support.