Comment # 12 on bug 937237 from Dinar Valeev

Info from installed machine:
localhost:~ # cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinux-4.1.6-3-default
root=UUID=16c8375f-dd26-4e1c-bed5-64644a5c92b1 quiet splash=silent
localhost:~ # ps aux | grep agetty
root       569  0.0  0.0   3072  2112 tty1     Ss+  10:18   0:00 /sbin/agetty
--noclear tty1 linux
root      1367  0.0  0.0   4160  2368 hvc0     S+   10:20   0:00 grep
--color=auto agetty
localhost:~ # 


Also I don't see system boot output during boot:
Loading Linux 4.1.6-3-default ...
* finddevice /memory grub workaround *
Loading initial ramdisk ...
* finddevice /memory grub workaround *
OF stdout device is: /vdevice/vty@71000000
Preparing to boot Linux version 4.1.6-3-default (geeko@buildhost) (gcc version
5.1.1 20150713 [gcc-5-branch revision 225736] (SUSE Linux) ) #1 SMP Fri Aug 28
10:59:34 UTC 2015 (d867e86)
Detected machine type: 0000000000000101
Max number of cores passed to firmware: 2048 (NR_CPUS = 2048)
Calling ibm,client-architecture-support... done
command line: BOOT_IMAGE=/boot/vmlinux-4.1.6-3-default
root=UUID=16c8375f-dd26-4e1c-bed5-64644a5c92b1 quiet splash=silent
memory layout at init:
  memory_limit : 0000000000000000 (16 MB aligned)
  alloc_bottom : 0000000003b80000
  alloc_top    : 0000000030000000
  alloc_top_hi : 0000000100000000
  rmo_top      : 0000000030000000
  ram_top      : 0000000100000000
instantiating rtas at 0x000000002fff0000... done
prom_hold_cpus: skipped
copying OF device tree...
Building dt strings...
Building dt structure...
Device tree strings 0x0000000003b90000 -> 0x0000000003b90820
Device tree struct  0x0000000003ba0000 -> 0x0000000003bb0000
Quiescing Open Firmware ...
Booting Linux via __start() ...
 -> smp_release_cpus()
spinning_secondaries = 0
 <- smp_release_cpus()
 <- setup_system()
SUSE Linux
#1 SMP Fri Aug 2
Welcome to openSUSE 20150903 "Tumbleweed" - Kernel 4.1.6-3-default (hvc0).