May 242018

Running recent CentOS update on machine with 512 MB of RAM caused yum to run out of memory. Thinking nothing of it, I stopped it to see what can be done. After stopping all services I was greeted with “Warning: RPMDB altered outside of yum” and “Found 93 pre-existing rpmdb problem(s), ‘yum check’ output follows”.

After trying a lot of things, I found the one that works. Removing older package without removing its dependencies and reinstalling the newer one worked a charm:

# rpm --erase --nodeps --noscript yum-plugin-fastestmirror-1.1.31-42.el7.noarch
# yum reinstall -y yum-plugin-fastestmirror

Of course, the same can be scripted but I leave that to more daring souls. :)

PS: Yes, the same procedure works on Red Hat too.

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