MultiBoot - Device Mixups

[hallergard]

Have a very strange problem. Disk 0 in windows becomes Device sdb in Linux, and Device sda in Linux becomes Disk 1 in Windows. What controls the disk/device order? Motherboard firmware? Grub2 entries? /etc/fstab? http://goo.gl/TfDrGU

[Rog131]

AskUbuntu- How are /dev/sda and /dev/sdb chosen?: http://askubuntu.com/questions/37104...dev-sdb-chosen

[hallergard]

Thanks Rog131! I am using UUID for all the partitions, and that does not solve my problem. I don't mind too much that Disk 0 becomes device sdb, if it only was persisitantly.

[hallergard]

Maybe I should clarify that I do not really care if the device is called sdb or sda as long as it is persisitant. On the same GPT disk (usually booting as sdb) I have three Linux partitions: Kubuntu 16.04 and Mint 17.3 KDE and openSUSE Leap42.1, plus Windows 10. At times Linux boot as sda, which creates problems, as all my shortcuts and mount entries in /etc/fstab are based on booting as sdbx, or in the case of Leap 42.1, would stalls booting completely. What can I do to stop this unwanted change?

[hallergard]

I now realise that I should use UUID in /etc/fstab for all the partitions to be mounted, not just for the partition being booted. This won't change the fact that device sdb might become sda, but that won't matter any more. Thanks Rog131!