Update QEMU text mode behaviour description

README.adoc

@@ -189,11 +189,7 @@ Show serial console directly on the current terminal, without opening a QEMU win
 ./run -n
 ....
 
-To exit, just do a regular:
+To quit QEMU forcefully, just use Ctrl + C as usual.
-
-....
-poweroff
-....
 
 This mode is very useful to:
 
@@ -201,44 +197,28 @@ This mode is very useful to:
 * copy and paste commands and stdout output to / from host
 * have a large scroll buffer, and be able to search it, e.g. by using GNU `screen` on host
 
-If the system crashes and you can't can quit QEMU with `poweroff`, or if `poweroff` is just too slow for your patience, you can hard kill the VM with
-
-....
-Ctrl-C X
-....
-
-or:
-
-....
-Ctrl-C A
-quit
-....
-
-or on host:
-
-....
-./qemumonitor
-quit
-....
-
-or:
-
-....
-echo quit | ./qemumonitor
-....
-
-See also:
-
-* http://stackoverflow.com/questions/14165158/how-to-switch-to-qemu-monitor-console-when-running-with-curses
-* https://superuser.com/questions/1087859/how-to-quit-qemu-monitor
-* https://superuser.com/questions/488263/problems-switching-to-qemu-control-panel-with-nographics
-* https://superuser.com/questions/1087859/how-to-quit-the-qemu-monitor-when-not-using-a-gui/1211516#1211516
-
 Limitations:
 
-* TODO: Ctrl + C kills the emulator for some setups (TODO which what exactly?), and not sent to guest processes. See:
+* TODO: Ctrl + C kills the emulator, and not sent to guest processes. See:
-** https://github.com/cloudius-systems/osv/issues/49
++
+--
 ** https://unix.stackexchange.com/questions/167165/how-to-pass-ctrl-c-in-qemu
+** https://github.com/cloudius-systems/osv/issues/49
+--
++
+It is also hard to enter the monitor for the same reason:
+--
+* http://stackoverflow.com/questions/14165158/how-to-switch-to-qemu-monitor-console-when-running-with-curses
+* https://superuser.com/questions/488263/how-to-switch-to-the-qemu-control-panel-with-nographics
+--
++
+Our workaround is:
++
+....
+./qemumonitor
+....
++
+I think the problem was reversed in older QEMU versions: https://superuser.com/questions/1087859/how-to-quit-the-qemu-monitor-when-not-using-a-gui/1211516#1211516
 +
 This is however fortunate when running QEMU with GDB, as the Ctrl + C reaches GDB and breaks.
 * Very early kernel messages such as `early console in extract_kernel` only show on the GUI, since at such early stages, not even the serial has been setup.