I wanted to create a dualboot setup on my Macbook Pro so that I could run Big Sur along with High Sierra. Hence, I created another partition of size 37 GB (disk0s3) to install Big Sur on that partition. However, after installing Big Sur, I can no longer access the content of the partition that used to have High Sierra (disk0s2). The drive doesn’t show up on the boot menu. When I ran diskutil from Terminal, it shows unknown partition. How can I recover my data from that partition? I had FileVault enabled on that partition.
As suggested by Jean_JD, I ran the following commands using terminal and found the following outcome from diskutil as presented in the screenshot below:
Do I need to run additional commands to verify the disk or the partition is accessible right away?