Upgrading CentOS 7.9 to AlmaLinux 8.x with leapp (issue after reboot: mount: wrong fs type)

I’m using the following guide:

During “sudo leapp upgrade” I got the following error (a few similar errors, but all of them were connected to the same conflicting package):

2022-11-25 08:51:30.313 DEBUG PID: 21679 leapp.workflow.Download.dnf_package_download: file /usr/lib64/.libcrypto.so.1.1.1k.hmac from install of openssl-libs-1:1.1.1k-7.el8_6.x86_64 conflicts with file from package openssl11-libs-1:1.1.1k-4.el7.x86_64

I fixed it by uninstalling conflicting package:

yum -y remove openssl11-libs-1:1.1.1k-4.el7.x86_64

After this, “leapp upgrade” succeeded and asked to reboot the system. After reboot it failed with the following error, which I’m struggling to fix:

This is the end of the output after reboot:

This is the error in rdsosreport.txt:

:

error in rdsosreport.txt (continued):

More errors in rdsosreport.txt: