Я понимаю, но все-же.
https://fedoraproject.org/wiki/Features/OfflineSystemUpdates#Detailed_Description
By "offline" OS updates we mean package installations and updates that are run with the system booted into a special system update mode, in order to avoid problems related to conflicts of libraries and services that are currently running with those on disk.
Replacing libraries and files while the OS is running can cause problems ranging from application crashes to inconsistent system states where processes are using different versions of a library at the same time. By installing system updates 'outside' the normal system operation, we avoid these problems.
Secondary benefits of the work done for this feature include that we are downloading all updates before we notify the user about available updates, and thus avoid unpleasant wait times.