Yum wasn’t in RedHat in 1999. Back then there were a ton of distributions. Most of those that were descendant from RedHat came with their own set of tools and y

Yum wasn’t in RedHat in 1999. Back then there were a ton of distributions. Most of those that were descendant from RedHat came with their own set of tools and yum was only one of many (like zypp and apt-rpm). And of course the reason there were so many is that the developer of rpm, RedHat, had nothing on offer. Debian had apt so their descendent distributions didn’t develop alternatives. RedHat Enterprise/Fedora adopted yum around 2003, as far as I can tell and RedHat the original free distribution never did. Certainly not in 1999.