All, Looking for help or suggestions on this one. I have run 2 drives in my laptop for 4+ years. Drive persistence has never been an issue. Regardless of whether sda was Windows and sdb opensuse or sda Arch and sdb opensuse. However, after an install of 15.4 Beta to /dev/sda with 15.0 still in /dev/sdb, the drives swap on rebooting 15.4. This is really, really weird. I install 15.4 on /dev/sda and then after reboot, 15.4 pops up mounted on /dev/sdb and 15.0 has been swapped to /dev/sda. The system doesn't care as all drive ID is by uuid for the system, but for short mount scripts I have that use sda/sdb, I'm having to rewrite those to use uuid as well. I've never had a BIOS Boot partition on anything other than 15.4 before, so I don't know if that contributes (I can see why it would). Is there anything anyone can think of that would make 15.4 more prone to cause drive label persistence problems more than any release before? While the 15.4 install didn't modify the 15.0 on sdb, it did include a chainload for it in grub installed for 15.4. What makes little sense is after running with swapped drives and a shutdown, the drives will pop up in the right order on power-on (but not always). Any body have any idea on this one? -- David C. Rankin, J.D.,P.E.