| > My kernel boot command line has 'console=ttyS0' option. Is there anything
| > else I need to ensure 'telnet 127.0.0.1 port' displays the messages ?
|
| That setting should be what's required to make serial console work. Are
| you sure you've got it set in the correct place of grub.conf for the
| guest OS ? I have my guests configured using:
|
| "console=ttyS0 console=tty"
|
| whch makes messages go to the serial port and graphical console
I am not using the grub.conf file in the guest. Instead, I am specifying
the "console=ttyS0" with the <cmdline> tag
<os>
<type>hvm</type>
<kernel>/home/suka/virtmcs/kernels/vmlinuz-ckpt</kernel>
<initrd>/home/suka/virtmcs/kernels/initrd-ckpt.img</initrd>
<cmdline>"ro debug root=/dev/sda1 console=ttyS0"</cmdline>
<boot dev='hd'/>
</os>
I have the <console> stanza as:
<console type='pty' tty='/dev/pts/3'>
<source path='/dev/pts/3'/>
<target port='0'/>
</console>
With this,if I add "console=tty" to the <cmdline> line,
<cmdline>"ro debug root=/dev/sda1 console=ttyS0 console=tty"</cmdline>
or "console=tty0"
<cmdline>"ro debug root=/dev/sda1 console=ttyS0 console=tty0"</cmdline>
the guest exits a few seconds after "virsh start". I don't see any useful
messages in /var/log/libvirt/qemu/guest.log of /var/log/messages.
If I remove the "console=tty" i.e go back to <os> stanza above, the guest
boots fine and I can use the vnc (graphic console) but I don't see any
messages on serial console.
Thanks,
Sukadev
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