Bug 2177636
| Summary: | BIOS serial console output not visible after upgrade and change to PCI | ||||||
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| Product: | Red Hat Enterprise Linux 9 | Reporter: | Robin Hack <rhack> | ||||
| Component: | qemu-kvm | Assignee: | Virtualization Maintenance <virt-maint> | ||||
| qemu-kvm sub component: | PCI | QA Contact: | liunana <nanliu> | ||||
| Status: | CLOSED NOTABUG | Docs Contact: | |||||
| Severity: | unspecified | ||||||
| Priority: | unspecified | CC: | gveitmic, jinzhao, juzhang, nanliu, virt-maint | ||||
| Version: | 9.2 | Flags: | pm-rhel:
mirror+
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| Target Milestone: | rc | ||||||
| Target Release: | --- | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2023-04-12 08:42:04 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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Description
Robin Hack
2023-03-13 08:34:39 UTC
Additional info: machine is scheduled via beaker with elevator=noop console=tty0 console=ttyS0 CLI passed to kernel To be clear. By update/upgrade rhel machine I just mean: dnf upgrade on freshly installed system. And I'm not able to see BIOS output when isa or pci console were used. Maybe I'm doing something wrong, but it's basic scenario: grap old libvirtxml files from rhel7 and put them on freshly installed rhel9 machine. Only linux kernel output is visible on serial console for my for now. (In reply to Robin Hack from comment #2) > To be clear. > By update/upgrade rhel machine I just mean: > dnf upgrade on freshly installed system. > > And I'm not able to see BIOS output when isa or pci console were used. > Maybe I'm doing something wrong, but it's basic scenario: > grap old libvirtxml files from rhel7 and put them on freshly installed rhel9 > machine. > > Only linux kernel output is visible on serial console for my for now. Hi Robin, It looks like it's not directly related with Stable Guest ABI so I involve x86 feature owner, thanks ! Hi NaNa, Could you please help to check "pci-serial" ? Thank you. Min (In reply to Robin Hack from comment #6) > Hello. > > Just notes from gchat: > > I tested 2 scenarios: > > 1) plain xml file provided here (just with disk path modification) - works > for me. I'm able to see grub menu and kernel messages - works via virsh > console > 2) hybrid approach: I modified my xml configuration with: > > <serial type="pty"> > <source path="/dev/pts/2"/> > <target type="isa-serial" port="0"> > <model name="isa-serial"/> > </target> > <alias name="serial0"/> > </serial> > <console type="pty" tty="/dev/pts/2"> > <source path="/dev/pts/2"/> > <target type="serial" port="0"/> > <alias name="serial0"/> > </console> > > and it again works for me via virsh console. I'm able to see PXE boot, grub > menu etc... > > However, I really need to see whole output via tcp console. Hi Robin, I checked your serial port xml configution, and it works well once I change the port value from '1' to '0' on rhel91 host and rhel93 host. And I find the libvirt serial port xml documents here: https://libvirt.org/formatdomain.html#serial-port Could you try this to check if it works for you? If so I think maybe this shouldn't be an issue. Thanks. Best regards Nana After dicussion with Robin on gchat, this should be one configuration issue. And we need to set the console port value to '0' since system will send the bios log to the ttyS0 default. Closed this bug as NOTBUG, thanks. |