Thanks Blaisorblade. It turned out to be a problem in the /etc/inittab in the guest UML. I guess it's me who should be saying "Doh!". :D
> On Sunday 13 August 2006 19:00, Mathew Brown wrote: > > Thanks a lot for your reply Blaisorblade. However, I've tried basically > > everything and nothing has worked so far. Any other ideas? > > > > > On Friday 11 August 2006 20:18, Mathew Brown wrote: > > > > Hi, > > > > I'm a UML newbie and am currently trying to configure consoles / > > > > serial lines as illustrated here: > > > > http://user-mode-linux.sourceforge.net/input.html It seems that no > > > > matter how I configure a console, nothing seems to be working. For > > > > example, I tried each of the following: > > > > > > > > uml_mconsole vZFvJC config con2=tty:/dev/tty12 (it returned OK) > > > > > > Then you'd do ctrl-alt-f12 and press Enter there. > > > > I did so but it gave me a blank screen. > > > I also tried to redirect it to > > an active tty (/dev/tty6) but it also didn't change (still giving me the > > host login). > > You should at least stop the getty from host's /etc/inittab and kill -HUP > the > host init first; however it does not matter until you open a getty inside > the > guest (see below). > > > > > uml_mconsole vZFvJC config con1=pts:/dev/pts/7 (it returned OK) > > > > > > Has any program inside UML opened /dev/tty2 (first case) or /dev/tty1 > > > (2nd case)? > > > > No. Only /dev/tty0 is open for the initial login (fd0:fd1) > > What do you expect then to see on the new console? The kernel surely won't > write stuff there. > You must add/uncomment a corresponding line to guest's /etc/inittab and > kill -HUP init. Then you can look at other troubles (like master/slave stuff > if it applies). > > > > Another problem (more likely) is the slave/master problem. Search this > > > mailing list for master/slave ttys - when two processes must talk via > > > ttys, you attach one to the master and the other to the slave (for > > > instance, /dev/ptypN and /dev/ttypN). > > > > > > > However, trying to attack screen to either /dev/tty12 or /dev/pts/7 > > > > gives me the following error: > > > > > > Hmm, I frankly doubt you can attach to /dev/pts/7. Usually you attach to > > > "pts" and see in the kernel logs which pts has been choosed. In that > > > case, the kernel opens /dev/ptmx and you open /dev/pts/N following what > > > the kernel says, and it should work easily. > > > I tried attaching to pts and uml_mconsole told me that it's okay but > > there were no kernel logs telling me which pts was chosen. > > That's strange, look at dmesg output; on the main console only some messages > (those with high loglevel, where "high" is configurable > through /proc/sys/kernel/printk) are shown. > > > > /var/run/screen/S-root/3825.pts-1.Kano: No such file or directory > I think this is because the pts / tty device isn't being initialized or > started since there is no mention of it in the UML instance's kernel > logs. Show the screen command line to make sure. I've tried screen /dev/pts/7 and it never shows such an error (even on non-existing pts). > > This error is a strange one, you should check your screen syntax (it is > > probably trying to resume a detached screen session if you see the > > above). -- Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!". Paolo Giarrusso, aka Blaisorblade http://www.user-mode-linux.org/~blaisorblade Chiacchiera con i tuoi amici in tempo reale! http://it.yahoo.com/mail_it/foot/*http://it.messenger.yahoo.com -- Mathew Brown [EMAIL PROTECTED] -- http://www.fastmail.fm - One of many happy users: http://www.fastmail.fm/docs/quotes.html ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
