Trying to install Linux CNC buster for router with 2 steppers on X axis

Hi
I need to set up a new machine similar to one already running.  It has two steppers running the X axis so I have Stretch 2.9.0-pre-1056-ge3548bc38  Stretch running on the original router.  I have installed Buster onto the computer running the new machine, but I am not sure what version and repository I need to get the new router working. Is this the repo?
buildbot.linuxcnc.org/ buster master-rtpreemp
and
buildbot.linuxcnc.org/ buster master-rtpreemp (sourceCode)
Thanks for your help
Aaron

Hi
I have now installed linuxcnc-uspace via buildbot.linuxcnc.org/buster/master-rtpreempt .
when  I attempt to run a configuration I know works on another machine I get the following message on startup;

<commandline>:0: milltask exited without becoming ready
Waited 3 seconds for master.  giving up.
Note: Using POSIX non-realtime
stepgen: not loaded
<commandline>:0: exit value: 255
<commandline>:0: rmmod failed, returned -1
Note: Using POSIX non-realtime
hal_parport: not loaded
<commandline>:0: exit value: 255
<commandline>:0: rmmod failed, returned -1
Note: Using POSIX non-realtime
motmod: not loaded
<commandline>:0: exit value: 255
<commandline>:0: rmmod failed, returned -1
Note: Using POSIX non-realtime
trivkins: not loaded
<commandline>:0: exit value: 255
<commandline>:0: rmmod failed, returned -1
<commandline>:0: unloadrt failed
Note: Using POSIX non-realtime
LinuxCNC terminated with an error.  You can find more information in the log:
    ########/linuxcnc_debug.txt
and
    ########/linuxcnc_print.txt
as well as in the output of the shell command 'dmesg' and in the terminal.

Also when I attempt to run stepconf wizard it says  "you are using a simulated-realtimeversion of LinuxCNC so testing of hardware is unavailable."
Any help would be appreciated
Thanks
 

Thanks. I managed to ger her going with 2 8.
Much appreciated
Aaron