I'm installing CentOS on a system that has pre-defined partitions (XFS, created by Ubuntu 14.04 Live CD). I can select the little 500MB partition and give it a mount point of /boot no problem. When I select the larger partition and set a mount point of /, it doesn't "stick"... no matter what I do, it will not retain that.

I was able to delete that partition and then create a new one that was slightly smaller, but that is saying the new partition will be /dev/sda10, and the one I removed was /dev/sda9 and I had a /dev/sda10 already, so I hope that one wasn't destroyed!

I really hate the partitioning tool in CentOS 7's installer more each time I use it...

  • You say that there is a 500MB partition which is assignable to /boot with no problems, but I don't see any details on the larger partition other than "XFS" and "larger". Can you expand in more detail? If you switch to one of the text consoles (ctrl-alt-f5, I think, but I don't recall offhand), do you see any useful diagnostic information? – mattdm Mar 6 '16 at 20:44

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