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3:27 p.m.
----- Original Message -----
From: "Christophe TREFOIS"
<christophe.trefois(a)uni.lu>
To: "users" <users(a)ovirt.org>
Sent: Monday, June 13, 2016 5:05:28 PM
Subject: [ovirt-users] Problem with Getty and Serial Consoles
Dear all,
I am running 3.6.6 and am able to select a Console, however, the screen is
black.
On the hypervisor, I try to start getty service manually, and end up with
following error in journal
Jun 13 17:01:01 elephant-server.lcsb.uni.lu systemd[1]: Stopping
user-0.slice.
-- Subject: Unit user-0.slice has begun shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit user-0.slice has begun shutting down.
Jun 13 17:01:37 elephant-server.lcsb.uni.lu systemd[1]: Job
dev-hvc0.device/start timed out.
Jun 13 17:01:37 elephant-server.lcsb.uni.lu systemd[1]: Timed out waiting for
device dev-hvc0.device.
-- Subject: Unit dev-hvc0.device has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit dev-hvc0.device has failed.
--
-- The result is timeout.
Jun 13 17:01:37 elephant-server.lcsb.uni.lu systemd[1]: Dependency failed for
Serial Getty on hvc0.
-- Subject: Unit serial-getty(a)hvc0.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit serial-getty(a)hvc0.service has failed.
I am running CentOS 7.2.
Does anybody have some pointers on what could be the issue here?
Hi!
Make sure you added the right parameter to the kernel command line, as per
"""
TL;DR: To make use of a serial console, just use console=ttyS0 on the kernel command line,
and systemd will automatically start a getty on it for you.
"""
nice full tutorial on http://0pointer.de/blog/projects/serial-console.html
Bests,
--
Francesco Romani
RedHat Engineering Virtualization R & D
Phone: 8261328
IRC: fromani
5:49 p.m.
Oha, didn’t understand that line in the doc.
Will try and report back.
Thanks,
On 14 Jun 2016, at 14:27, Francesco Romani <fromani(a)redhat.com>
wrote:
----- Original Message -----
> From: "Christophe TREFOIS" <christophe.trefois(a)uni.lu>
> To: "users" <users(a)ovirt.org>
> Sent: Monday, June 13, 2016 5:05:28 PM
> Subject: [ovirt-users] Problem with Getty and Serial Consoles
>
> Dear all,
>
> I am running 3.6.6 and am able to select a Console, however, the screen is
> black.
>
> On the hypervisor, I try to start getty service manually, and end up with
> following error in journal
>
> Jun 13 17:01:01 elephant-server.lcsb.uni.lu systemd[1]: Stopping
> user-0.slice.
> -- Subject: Unit user-0.slice has begun shutting down
> -- Defined-By: systemd
> -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
> --
> -- Unit user-0.slice has begun shutting down.
> Jun 13 17:01:37 elephant-server.lcsb.uni.lu systemd[1]: Job
> dev-hvc0.device/start timed out.
> Jun 13 17:01:37 elephant-server.lcsb.uni.lu systemd[1]: Timed out waiting for
> device dev-hvc0.device.
> -- Subject: Unit dev-hvc0.device has failed
> -- Defined-By: systemd
> -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
> --
> -- Unit dev-hvc0.device has failed.
> --
> -- The result is timeout.
> Jun 13 17:01:37 elephant-server.lcsb.uni.lu systemd[1]: Dependency failed for
> Serial Getty on hvc0.
> -- Subject: Unit serial-getty(a)hvc0.service has failed
> -- Defined-By: systemd
> -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
> --
> -- Unit serial-getty(a)hvc0.service has failed.
>
> I am running CentOS 7.2.
>
> Does anybody have some pointers on what could be the issue here?
Hi!
Make sure you added the right parameter to the kernel command line, as per
"""
TL;DR: To make use of a serial console, just use console=ttyS0 on the kernel command
line, and systemd will automatically start a getty on it for you.
"""
nice full tutorial on http://0pointer.de/blog/projects/serial-console.html
Bests,
--
Francesco Romani
RedHat Engineering Virtualization R & D
Phone: 8261328
IRC: fromani
2890
days inactive
2893
days old
2 comments
2 participants
participants (2)
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Christophe TREFOIS -
Francesco Romani