Hi,

here you can find some examples for single user mode in older SLES releases. You could try only '/bin/bash' (without init) as that site says:

"/bin/bash" for more advanced rescue methods and where init or inittab is bad
Here's a different thread on the same topic for SLES 12. If the system is up simply run
Code:
systemctl rescue
.

Regards,
Eugen