Hello, I attach to this thread to detail how I was able to have serial console working both on CentOS 6.7 and CentOS 7.2 VMs on 3.6.5 - CentOS 6.7 Basically what described in general here (but using ttyS0 instead ttyS1): http://www.cyberciti.biz/faq/centos-rhel-6-install-serial-console/ So in /boot/grub/grub.conf a) right before the "hiddenmenu" line: serial --unit=*0 *--speed=19200 --word=8 --parity=no --stop=1 terminal --timeout=5 serial console b) At the end of kernel line added: console=tty0 console=ttyS*0*,19200n8 Added at the end of /etc/securetty the line ttyS0 Only difference is that as I used ttyS0, the upstart configuration was not needed: the system after reboot was already listening on ttyS0 Creating upstart config file generated 2 processes listening on ttyS0 - CentOS 7.2 created VM with virtio console enabled in options and basically following what described here https://www.youtube.com/watch?v=Sx2HRwFqG7o from default configuration I got after install: Add in /etc/default/grub "console=ttyS0" in GRUB_CMDLINE_LINUX so that it is now: GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet console=ttyS0" grub2-mkconfig -o /boot/grub2/grub.cfg reboot the VM
From a client: $ ssh -t -p 2222 ovirt-vmconsole@ovirt.lutwyn.org connect Available Serial Consoles: 00 c6desktop[68a82ada-a1d2-44d0-85b0-f3a08cc2f579] 01 c7desktop[787f46f6-de4a-4b42-ba39-9609908c2905] SELECT> 01
CentOS Linux 7 (Core) Kernel 3.10.0-327.13.1.el7.x86_64 on an x86_64 Host-006 login: root Password: Last login: Tue May 3 01:34:57 on pts/0 [root@Host-006 ~]# [root@Host-006 ~]# [root@Host-006 ~]# cat /etc/redhat-release CentOS Linux release 7.2.1511 (Core) [root@Host-006 ~]# exit HIH, Gianluca