Trying to upgrade from leap15.4.1 to leap15.5.1 using the command zypper --releasever=15.5 dup --download-in-advance but i’ve got the error message :
Retrieving: libxxhash0-0.8.2-lp155.22.1.x86_64 (Software for Scientists and Engineers (15.5)) (6
Retrieving: libxxhash0-0.8.2-lp155.22.1.x86_64.rpm …[not found]
File ‘./x86_64/libxxhash0-0.8.2-lp155.22.1.x86_64.rpm’ not found on medium ‘https://download.opensuse.org/repositories/science/15.5/’
Abort, retry, ignore? [a/r/i/…? shows all options] (a):
Also you have been running in an Update of the science Repo
File ‘./x86_64/libxxhash0-0.8.2-lp155.22.1.x86_64.rpm’ not found on medium
vs
libxxhash0-0.8.2-lp155.23.1
Apart from what @Sauerland already pointed out, I would never want to have any non-standard repos active during such a huge action. It will be already fine when more then 1500 packages are installed without problem. Then after I would enable the extra repos I have one by one and install from them what I need (and for Packman I would do the vendor switch).
As can be seen at the initial terminal output, this is not the problem.
Instead of recommending some random stuff, it is always adviced to follow official upgrade procedures as pointed out by Sauerland in his comment.
Additionally , the problem that can be seen in the first post is, that either auto refresh for this repo is disabled or the mirror was in a syncing state…