Linux solves "Unknown filesystem"
I wonder if you have encountered the error "Unknown filesystem" when using Linux systems?
This is usually the case where there is a problem with the system's GRUB boot
How to fix this situation
Since I don't have a collection card, there are no relevant screenshots in the following content
We first enter it on the GRUB command linelsAnd observe the return information, the information content is similar: "hd0,sda1"
We write down the information returned by the system and enter the PE system. I am using "micro PE".
"WeChat PE" has a tool called "Show Hidden Partitions". Click to use this tool
This tool will not return any information, don't worry, this is normal.
We use "Windows + E" to open "File Explorer" and we can see all partitions
Find the partition where the "boot" folder is located, follow the path "/boot/grub/" folder, find the file, and open it with Notepad.
Use the "Ctrl + F" search function, search for "hd" and find text with the format similar to: "hd0,sda1", and modify it to the partition of your system. For example, change "hd0,sda1" to "hd0,sda2", or change it to "hd1,sda3"
After the modification is completed, save the file, shut down and unplug the PE disk and restart the host. If it still cannot start, you can try partitions one by one until all partitions have been tried.
Summarize
The above is personal experience. I hope you can give you a reference and I hope you can support me more.