Bug 1608733
| Summary: | Serial console connection to HE returns "ERROR: No pty support, please enable at client side" and fails. | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Virtualization Manager | Reporter: | Nikolai Sednev <nsednev> |
| Component: | rhevm-appliance | Assignee: | Yuval Turgeman <yturgema> |
| Status: | CLOSED ERRATA | QA Contact: | Nikolai Sednev <nsednev> |
| Severity: | high | Docs Contact: | |
| Priority: | urgent | ||
| Version: | 4.2.5 | CC: | cshao, dfediuck, huzhao, mkalinin, qiyuan, stirabos, weiwang, yaniwang, yaoxu, ycui, ylavi, yzhao |
| Target Milestone: | ovirt-4.2.5-1 | Keywords: | Triaged |
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2018-08-06 09:18:54 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | Node | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 1590943 | ||
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Description
Nikolai Sednev
2018-07-26 08:44:31 UTC
In upstream ovirt-engine-appliance nothing special is needed Removing console=tty0 and adding console=ttyS0,115200 in GRUB_CMDLINE_LINUX (running "grub2-mkconfig -o /etc/grub2.cfg" after that) as for https://access.redhat.com/solutions/277793 fixes it. In upstream ovirt-engine-appliace we have: [root ~]# cat /etc/default/grub GRUB_TIMEOUT=1 GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_TERMINAL="serial console" GRUB_SERIAL_COMMAND="serial" GRUB_CMDLINE_LINUX="crashkernel=auto console=ttyS0" GRUB_DISABLE_RECOVERY="true" and the serial console works by default. We can fix on newer rhvm-appliance build but who deployed in the past has to manually fix enabling the serial console at OS level if needed. Marina, could you please open a KBS for this? I created this KCS to address this bz. Please review: https://access.redhat.com/solutions/3545201 However, I could not fully verify it because I hit bz#1575996 and could not start HE VM with the serial console device. I need someone else to confirm my solution before we can set it as verified. Also, I am not sure I am doing it right - vmconsole proxy is running on the hosted-engine. Maybe we should use screen or something else to connect to HE VM instead of via vmconsole? (In reply to Marina from comment #4) > I created this KCS to address this bz. Please review: > https://access.redhat.com/solutions/3545201 > > However, I could not fully verify it because I hit bz#1575996 and could not > start HE VM with the serial console device. > I need someone else to confirm my solution before we can set it as verified. > > Also, I am not sure I am doing it right - vmconsole proxy is running on the > hosted-engine. Maybe we should use screen or something else to connect to HE > VM instead of via vmconsole? Two comments: - the user has to update ovirt-engine (due to https://bugzilla.redhat.com/show_bug.cgi?id=1590943 ) and ovirt-hosted-engine-setup (on host side) - 'hosted-engine --console' will open the serial console as well (wrapping socat) and it will also work if the vmconsole proxy or the engine (on auth side) are down while 'ssh -t -p 2222 ovirt-vmconsole@RHVM_FQDN connect --vm-name HostedEngine' requires a working engine VM. Works for me on latest appliance rhvm-appliance-4.2-20180727.1.el7.noarch, the serial console comes disabled by default, but if enabling it from UI and setting environment in to global maintenance and then powering off the engine and then starting it and then cancelling global maintenance, then serial console is working just fine on engine. Engine setup within the rhvm-appliance-4.2-20180727.1.el7.noarch is ovirt-engine-setup-4.2.5.2-0.1.el7ev.noarch. Tested on these components: ovirt-hosted-engine-ha-2.2.16-1.el7ev.noarch ovirt-hosted-engine-setup-2.2.24-1.el7ev.noarch rhvm-appliance-4.2-20180727.1.el7.noarch ovirt-vmconsole-1.0.4-1.el7ev.noarch ovirt-vmconsole-host-1.0.4-1.el7ev.noarch Linux 3.10.0-862.el7.x86_64 #1 SMP Wed Mar 21 18:14:51 EDT 2018 x86_64 x86_64 x86_64 GNU/Linux Red Hat Enterprise Linux Server release 7.5 (Maipo) Moving to verified. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2018:2348 |