I have now tried many times on different machines.
If yast suggest /dev/sdb1 to boot from, and you change that to /dev/sda1 … Then after installation it is not booting.
This bug is not in 12.2
It’s hard to say whether it is a bug or a feature 
On the first screen for configuring boot loader, there’s a button near the bottom “Boot Loader Installation Details”. Click that. It should list the disks in the order assumed for booting. You can move disks up and down to set the order that you want.
I’m pretty sure this is supposed to be the order of the disks as seen by the BIOS. Since booting depends on BIOS calls, if you get this wrong, the booting won’t work.
Most of the time, the installer gets this right. But then, most of the time there is only one hard drive so it is easy to get right.
If you tell the BIOS to boot from a particular disk, the BIOS will change the logical order of the disks during that boot. Since only you know how you are booting, you need to check that the order corresponds to how the booting will work.
And then there’s an additional problem that could arise. The name “/dev/sda”, “/dev/sdb” etc can change. The disk order list is using the names as currently known to the installer. When I want to mess with that order, I use CTRL-ALT-F2 to get a root prompt. Then I use commands such as “df” and “fdisk” to make sure that I know which disk the installer considers to be “/dev/sda”. I return to installation with CTRL-ALT-F7.
Note: I only had to do what I described when installing to an external disk. My system with multiple internal disk is UEFI, so has different problems.
On 2014-04-21 14:46, powerbart wrote:
>
> I have now tried many times on different machines.
> If yast suggest /dev/sdb1 to boot from, and you change that to /dev/sda1
> … Then after installation it is not booting.
>
> This bug is not in 12.2
Unless you explain it more, I see it as obvious that if you change sdb1
to sda1 it will not boot.
–
Cheers / Saludos,
Carlos E. R.
(from 13.1 x86_64 “Bottle” at Telcontar)
I have failed 100 million times, with installing 13.1 … After the post, It worked …
Why - I don’t know… I have done the same thing again and again …
Thanks of the reply!!!