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I would like to add a line to the inittab that will create a terminal console, lets say tty11, and I would like that console to display the output from dmesg. (this tty will have no other purpose in life but to output dmesg)
this would allow me to press alt+f11 at any time to view anything that might have changed/updated both during the boot process and after.
In inittab, you add a line like (in you are running standard sysV init):
c7:2345:respawn:bash -c "cat /proc/kmsg >/dev/tty11"
or you can add it anywhere in your boot process (like in /etc/rc.d or anywhere your distro execute the code)
line in the inittab and I get messages on tty1 saying that c7 will be halted for 5 min.
when I switch over to tty11 I see no output
c7:2345:respawn:bash -c "dmesg -c >/dev/tty11"
while I was able to see the information I expected to see on tty11 but I was unable to scroll up or down, and I was still recieving the c7 will be halted for 5min messages on tty1
I like the output generated by dmesg, it is helpful when different events trigger... such as inserting a usb device ...it is also helpful to be able to see what is going on during the boot process, so I can learn how things are being loaded.
I must be missing something...
as for the console=tty11 setting, I do not have the /boot/grub/menu.lst file.
Last edited by joeuser123; 02-26-2009 at 05:11 PM.
does it work if you just type bash -c "cat /proc/kmsg >/dev/tty11" on the terminal as root?
expected result: the command should hang and you should see kernel messages on /des/tty11 (only new messages, not old ones). At first if will not print anything but if you insert a module it should be printed there.