sudo apt update
sudo apt install xz-utilsunxz file.xz
In my case, I have a file koha_library.sql.xz
unxz koha_library.sql.xz
sudo apt update
sudo apt install xz-utilsTake a backup of Dspace database and folder s Assume the version is same with both OS [I have tested DSpace 6.3] sudo su mkdir dspace_backup...