On 20.05.20 09:07, Valentin Vidić wrote: > On Wed, May 20, 2020 at 07:25:06AM +0200, Christian Borntraeger wrote: >> This is not as simple. ttyS1 is the the console name and ttysclp0 is the tty name. >> This has mostly historic reasons and it obviously causes problems. >> But there is documentation out that that actually describes the use of >> console=ttyS1 console=ttyS0. >> to have console output on both sclp consoles and there are probably scripts >> using ttyS1. >> >> I am wondering. The tty for ttyS0 is named sclp_line0. Does this work in LPAR? > > I ran into this problem with qemu-system-s390x, so not sure about LPAR. > Would changing the tty name also cause problems? My point was more that a similar issue should happen when installing in LPAR. LPAR uses the line mode style console which is ttyS0 for the console but sclp_line0 for the tty. How does the debian installer handle this? Regarding your patch I fear that this patch would break existing setups so we cannot use it as is.