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Old 01-16-2013, 08:40 AM   #1
Registered: Aug 2010
Location: Warsaw, Poland
Distribution: Ubuntu 10.04 LTS on IBM Lenovo R61e, RHEL5-6,SLES10-11
Posts: 262

Rep: Reputation: 1
KVM guest change console to tty0


I have already setup guest but with graphic consoel VNC.
Now I want to change configuration of this guest to allow me to access console of this guest on hypervisors tty0.

When I wanted to setup guest with this kind of console i typed :
virt-install --name vm_guest1 --ram 1024 --disk /RHEV/vm_images/vm_guest1.img,size=6 --network network:default --vcpu=2 --connect qemu:///system --nographics --os-variant rhel6 -l /usr/rhel-server-6.3-x86_64.iso --extra-args='console=tty0 console=ttyS0'
What to do, in order to allow allready created guest e.g.vm_guest2 access console in cli ?

Best Regards
Old 01-16-2013, 09:44 AM   #2
Registered: Dec 2007
Location: Canada
Distribution: RHEL,Fedora
Posts: 995

Rep: Reputation: 115Reputation: 115
1. The VM's grub.conf kernel options line should contain "console=ttyS0"
2. edit the VM definitions, under devices add:
<serial type='pty'>
<target port='0'/>
<console type='pty'>
<target type='serial' port='0'/>
3. start the VM and connect to the serial console by running `virsh console VMNAME`


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