Problem with Getty and Serial Consoles
--_000_429D7E867135438DBFC2390B5891BEEAunilu_ Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 RGVhciBhbGwsDQoNCkkgYW0gcnVubmluZyAzLjYuNiBhbmQgYW0gYWJsZSB0byBzZWxlY3QgYSBD b25zb2xlLCBob3dldmVyLCB0aGUgc2NyZWVuIGlzIGJsYWNrLg0KDQpPbiB0aGUgaHlwZXJ2aXNv ciwgSSB0cnkgdG8gc3RhcnQgZ2V0dHkgc2VydmljZSBtYW51YWxseSwgYW5kIGVuZCB1cCB3aXRo IGZvbGxvd2luZyBlcnJvciBpbiBqb3VybmFsDQoNCkp1biAxMyAxNzowMTowMSBlbGVwaGFudC1z ZXJ2ZXIubGNzYi51bmkubHU8aHR0cDovL2VsZXBoYW50LXNlcnZlci5sY3NiLnVuaS5sdT4gc3lz dGVtZFsxXTogU3RvcHBpbmcgdXNlci0wLnNsaWNlLg0KLS0gU3ViamVjdDogVW5pdCB1c2VyLTAu c2xpY2UgaGFzIGJlZ3VuIHNodXR0aW5nIGRvd24NCi0tIERlZmluZWQtQnk6IHN5c3RlbWQNCi0t IFN1cHBvcnQ6IGh0dHA6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9z eXN0ZW1kLWRldmVsDQotLQ0KLS0gVW5pdCB1c2VyLTAuc2xpY2UgaGFzIGJlZ3VuIHNodXR0aW5n IGRvd24uDQpKdW4gMTMgMTc6MDE6MzcgZWxlcGhhbnQtc2VydmVyLmxjc2IudW5pLmx1PGh0dHA6 Ly9lbGVwaGFudC1zZXJ2ZXIubGNzYi51bmkubHU+IHN5c3RlbWRbMV06IEpvYiBkZXYtaHZjMC5k ZXZpY2Uvc3RhcnQgdGltZWQgb3V0Lg0KSnVuIDEzIDE3OjAxOjM3IGVsZXBoYW50LXNlcnZlci5s Y3NiLnVuaS5sdTxodHRwOi8vZWxlcGhhbnQtc2VydmVyLmxjc2IudW5pLmx1PiBzeXN0ZW1kWzFd OiBUaW1lZCBvdXQgd2FpdGluZyBmb3IgZGV2aWNlIGRldi1odmMwLmRldmljZS4NCi0tIFN1Ympl Y3Q6IFVuaXQgZGV2LWh2YzAuZGV2aWNlIGhhcyBmYWlsZWQNCi0tIERlZmluZWQtQnk6IHN5c3Rl bWQNCi0tIFN1cHBvcnQ6IGh0dHA6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0 aW5mby9zeXN0ZW1kLWRldmVsDQotLQ0KLS0gVW5pdCBkZXYtaHZjMC5kZXZpY2UgaGFzIGZhaWxl ZC4NCi0tDQotLSBUaGUgcmVzdWx0IGlzIHRpbWVvdXQuDQpKdW4gMTMgMTc6MDE6MzcgZWxlcGhh bnQtc2VydmVyLmxjc2IudW5pLmx1PGh0dHA6Ly9lbGVwaGFudC1zZXJ2ZXIubGNzYi51bmkubHU+ IHN5c3RlbWRbMV06IERlcGVuZGVuY3kgZmFpbGVkIGZvciBTZXJpYWwgR2V0dHkgb24gaHZjMC4N Ci0tIFN1YmplY3Q6IFVuaXQgc2VyaWFsLWdldHR5QGh2YzAuc2VydmljZTxtYWlsdG86c2VyaWFs LWdldHR5QGh2YzAuc2VydmljZT4gaGFzIGZhaWxlZA0KLS0gRGVmaW5lZC1CeTogc3lzdGVtZA0K LS0gU3VwcG9ydDogaHR0cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZv L3N5c3RlbWQtZGV2ZWwNCi0tDQotLSBVbml0IHNlcmlhbC1nZXR0eUBodmMwLnNlcnZpY2U8bWFp bHRvOnNlcmlhbC1nZXR0eUBodmMwLnNlcnZpY2U+IGhhcyBmYWlsZWQuDQoNCkkgYW0gcnVubmlu ZyBDZW50T1MgNy4yLg0KDQpEb2VzIGFueWJvZHkgaGF2ZSBzb21lIHBvaW50ZXJzIG9uIHdoYXQg Y291bGQgYmUgdGhlIGlzc3VlIGhlcmU/DQoNClRoYW5rIHlvdSwNCg0K4oCUDQpDaHJpc3RvcGhl DQoNCg0KDQoNCg== --_000_429D7E867135438DBFC2390B5891BEEAunilu_ Content-Type: text/html; charset="utf-8" Content-ID: <18D1C523ED256D4194596A35D1804775@uni.lux> Content-Transfer-Encoding: base64 PGh0bWw+DQo8aGVhZD4NCjxtZXRhIGh0dHAtZXF1aXY9IkNvbnRlbnQtVHlwZSIgY29udGVudD0i dGV4dC9odG1sOyBjaGFyc2V0PXV0Zi04Ij4NCjwvaGVhZD4NCjxib2R5IHN0eWxlPSJ3b3JkLXdy YXA6IGJyZWFrLXdvcmQ7IC13ZWJraXQtbmJzcC1tb2RlOiBzcGFjZTsgLXdlYmtpdC1saW5lLWJy ZWFrOiBhZnRlci13aGl0ZS1zcGFjZTsiIGNsYXNzPSIiPg0KRGVhciBhbGwsDQo8ZGl2IGNsYXNz PSIiPjxiciBjbGFzcz0iIj4NCjwvZGl2Pg0KPGRpdiBjbGFzcz0iIj5JIGFtIHJ1bm5pbmcgMy42 LjYgYW5kIGFtIGFibGUgdG8gc2VsZWN0IGEgQ29uc29sZSwgaG93ZXZlciwgdGhlIHNjcmVlbiBp cyBibGFjay48L2Rpdj4NCjxkaXYgY2xhc3M9IiI+PGJyIGNsYXNzPSIiPg0KPC9kaXY+DQo8ZGl2 IGNsYXNzPSIiPk9uIHRoZSBoeXBlcnZpc29yLCBJIHRyeSB0byBzdGFydCBnZXR0eSBzZXJ2aWNl IG1hbnVhbGx5LCBhbmQgZW5kIHVwIHdpdGggZm9sbG93aW5nIGVycm9yIGluIGpvdXJuYWw8L2Rp dj4NCjxkaXYgY2xhc3M9IiI+PGJyIGNsYXNzPSIiPg0KPC9kaXY+DQo8ZGl2IGNsYXNzPSIiPg0K PGRpdiBjbGFzcz0iIj5KdW4gMTMgMTc6MDE6MDEgPGEgaHJlZj0iaHR0cDovL2VsZXBoYW50LXNl cnZlci5sY3NiLnVuaS5sdSIgY2xhc3M9IiI+DQplbGVwaGFudC1zZXJ2ZXIubGNzYi51bmkubHU8 L2E+IHN5c3RlbWRbMV06IFN0b3BwaW5nIHVzZXItMC5zbGljZS48L2Rpdj4NCjxkaXYgY2xhc3M9 IiI+LS0gU3ViamVjdDogVW5pdCB1c2VyLTAuc2xpY2UgaGFzIGJlZ3VuIHNodXR0aW5nIGRvd248 L2Rpdj4NCjxkaXYgY2xhc3M9IiI+LS0gRGVmaW5lZC1CeTogc3lzdGVtZDwvZGl2Pg0KPGRpdiBj bGFzcz0iIj4tLSBTdXBwb3J0OiA8YSBocmVmPSJodHRwOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3Jn L21haWxtYW4vbGlzdGluZm8vc3lzdGVtZC1kZXZlbCIgY2xhc3M9IiI+DQpodHRwOi8vbGlzdHMu ZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vc3lzdGVtZC1kZXZlbDwvYT48L2Rpdj4N CjxkaXYgY2xhc3M9IiI+LS08L2Rpdj4NCjxkaXYgY2xhc3M9IiI+LS0gVW5pdCB1c2VyLTAuc2xp Y2UgaGFzIGJlZ3VuIHNodXR0aW5nIGRvd24uPC9kaXY+DQo8ZGl2IGNsYXNzPSIiPkp1biAxMyAx NzowMTozNyA8YSBocmVmPSJodHRwOi8vZWxlcGhhbnQtc2VydmVyLmxjc2IudW5pLmx1IiBjbGFz cz0iIj4NCmVsZXBoYW50LXNlcnZlci5sY3NiLnVuaS5sdTwvYT4gc3lzdGVtZFsxXTogSm9iIGRl di1odmMwLmRldmljZS9zdGFydCB0aW1lZCBvdXQuPC9kaXY+DQo8ZGl2IGNsYXNzPSIiPkp1biAx MyAxNzowMTozNyA8YSBocmVmPSJodHRwOi8vZWxlcGhhbnQtc2VydmVyLmxjc2IudW5pLmx1IiBj bGFzcz0iIj4NCmVsZXBoYW50LXNlcnZlci5sY3NiLnVuaS5sdTwvYT4gc3lzdGVtZFsxXTogVGlt ZWQgb3V0IHdhaXRpbmcgZm9yIGRldmljZSBkZXYtaHZjMC5kZXZpY2UuPC9kaXY+DQo8ZGl2IGNs YXNzPSIiPi0tIFN1YmplY3Q6IFVuaXQgZGV2LWh2YzAuZGV2aWNlIGhhcyBmYWlsZWQ8L2Rpdj4N CjxkaXYgY2xhc3M9IiI+LS0gRGVmaW5lZC1CeTogc3lzdGVtZDwvZGl2Pg0KPGRpdiBjbGFzcz0i Ij4tLSBTdXBwb3J0OiA8YSBocmVmPSJodHRwOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxt YW4vbGlzdGluZm8vc3lzdGVtZC1kZXZlbCIgY2xhc3M9IiI+DQpodHRwOi8vbGlzdHMuZnJlZWRl c2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vc3lzdGVtZC1kZXZlbDwvYT48L2Rpdj4NCjxkaXYg Y2xhc3M9IiI+LS08L2Rpdj4NCjxkaXYgY2xhc3M9IiI+LS0gVW5pdCBkZXYtaHZjMC5kZXZpY2Ug aGFzIGZhaWxlZC48L2Rpdj4NCjxkaXYgY2xhc3M9IiI+LS08L2Rpdj4NCjxkaXYgY2xhc3M9IiI+ LS0gVGhlIHJlc3VsdCBpcyB0aW1lb3V0LjwvZGl2Pg0KPGRpdiBjbGFzcz0iIj5KdW4gMTMgMTc6 MDE6MzcgPGEgaHJlZj0iaHR0cDovL2VsZXBoYW50LXNlcnZlci5sY3NiLnVuaS5sdSIgY2xhc3M9 IiI+DQplbGVwaGFudC1zZXJ2ZXIubGNzYi51bmkubHU8L2E+IHN5c3RlbWRbMV06IERlcGVuZGVu Y3kgZmFpbGVkIGZvciBTZXJpYWwgR2V0dHkgb24gaHZjMC48L2Rpdj4NCjxkaXYgY2xhc3M9IiI+ LS0gU3ViamVjdDogVW5pdCA8YSBocmVmPSJtYWlsdG86c2VyaWFsLWdldHR5QGh2YzAuc2Vydmlj ZSIgY2xhc3M9IiI+DQpzZXJpYWwtZ2V0dHlAaHZjMC5zZXJ2aWNlPC9hPiBoYXMgZmFpbGVkPC9k aXY+DQo8ZGl2IGNsYXNzPSIiPi0tIERlZmluZWQtQnk6IHN5c3RlbWQ8L2Rpdj4NCjxkaXYgY2xh c3M9IiI+LS0gU3VwcG9ydDogPGEgaHJlZj0iaHR0cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9t YWlsbWFuL2xpc3RpbmZvL3N5c3RlbWQtZGV2ZWwiIGNsYXNzPSIiPg0KaHR0cDovL2xpc3RzLmZy ZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL3N5c3RlbWQtZGV2ZWw8L2E+PC9kaXY+DQo8 ZGl2IGNsYXNzPSIiPi0tPC9kaXY+DQo8ZGl2IGNsYXNzPSIiPi0tIFVuaXQgPGEgaHJlZj0ibWFp bHRvOnNlcmlhbC1nZXR0eUBodmMwLnNlcnZpY2UiIGNsYXNzPSIiPnNlcmlhbC1nZXR0eUBodmMw LnNlcnZpY2U8L2E+IGhhcyBmYWlsZWQuPC9kaXY+DQo8ZGl2IGNsYXNzPSIiPjxiciBjbGFzcz0i Ij4NCjwvZGl2Pg0KPGRpdiBjbGFzcz0iIj5JIGFtIHJ1bm5pbmcgQ2VudE9TIDcuMi48L2Rpdj4N CjxkaXYgY2xhc3M9IiI+PGJyIGNsYXNzPSIiPg0KPC9kaXY+DQo8ZGl2IGNsYXNzPSIiPkRvZXMg YW55Ym9keSBoYXZlIHNvbWUgcG9pbnRlcnMgb24gd2hhdCBjb3VsZCBiZSB0aGUgaXNzdWUgaGVy ZT88L2Rpdj4NCjxkaXYgY2xhc3M9IiI+PGJyIGNsYXNzPSIiPg0KPC9kaXY+DQo8ZGl2IGNsYXNz PSIiPlRoYW5rIHlvdSw8L2Rpdj4NCjxkaXYgY2xhc3M9IiI+PGJyIGNsYXNzPSIiPg0KPC9kaXY+ DQo8ZGl2IGNsYXNzPSIiPuKAlDwvZGl2Pg0KPGRpdiBjbGFzcz0iIj5DaHJpc3RvcGhlPC9kaXY+ DQo8ZGl2IGNsYXNzPSIiPg0KPGRpdiBzdHlsZT0iY29sb3I6IHJnYigwLCAwLCAwKTsgbGV0dGVy LXNwYWNpbmc6IG5vcm1hbDsgb3JwaGFuczogYXV0bzsgdGV4dC1hbGlnbjogc3RhcnQ7IHRleHQt aW5kZW50OiAwcHg7IHRleHQtdHJhbnNmb3JtOiBub25lOyB3aGl0ZS1zcGFjZTogbm9ybWFsOyB3 aWRvd3M6IGF1dG87IHdvcmQtc3BhY2luZzogMHB4OyAtd2Via2l0LXRleHQtc3Ryb2tlLXdpZHRo OiAwcHg7IHdvcmQtd3JhcDogYnJlYWstd29yZDsgLXdlYmtpdC1uYnNwLW1vZGU6IHNwYWNlOyAt d2Via2l0LWxpbmUtYnJlYWs6IGFmdGVyLXdoaXRlLXNwYWNlOyIgY2xhc3M9IiI+DQo8cCBzdHls ZT0iZm9udC1mYW1pbHk6IEFyaWFsLCBzYW5zLXNlcmlmOyBmb250LXNpemU6IDEwcHQ7IGxpbmUt aGVpZ2h0OiAxNnB4OyBjb2xvcjogcmdiKDMzLCAzMywgMzMpOyIgY2xhc3M9IiI+DQo8YnIgY2xh c3M9IiI+DQo8L3A+DQombmJzcDs8c3BhbiBjbGFzcz0iQXBwbGUtY29udmVydGVkLXNwYWNlIj4m bmJzcDs8L3NwYW4+PC9kaXY+DQo8L2Rpdj4NCjxiciBjbGFzcz0iIj4NCjwvZGl2Pg0KPC9ib2R5 Pg0KPC9odG1sPg0K --_000_429D7E867135438DBFC2390B5891BEEAunilu_--
----- Original Message -----
From: "Christophe TREFOIS" <christophe.trefois@uni.lu> To: "users" <users@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@hvc0.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit serial-getty@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
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@redhat.com> wrote:
----- Original Message -----
From: "Christophe TREFOIS" <christophe.trefois@uni.lu> To: "users" <users@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@hvc0.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit serial-getty@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
participants (2)
-
Christophe TREFOIS -
Francesco Romani