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Bug 2002392

Summary: RFE: Provide a way to direct BIOS output to the serial device on x86
Product: Red Hat Enterprise Linux 9 Reporter: Richard W.M. Jones <rjones>
Component: libvirtAssignee: Virtualization Maintenance <virt-maint>
Status: CLOSED DUPLICATE QA Contact: Meina Li <meili>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 9.0CC: jinqi, lizhu, virt-maint, xuzhang
Target Milestone: rcKeywords: FutureFeature
Target Release: ---Flags: pm-rhel: mirror+
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: 2021-09-13 09:34:30 UTC Type: Feature Request
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2000845, 2002325    

Description Richard W.M. Jones 2021-09-08 16:37:52 UTC
Description of problem:

Related to:
https://bugzilla.redhat.com/show_bug.cgi?id=2002325
"Use -machine graphics=off instead of sga device"
and
https://bugzilla.redhat.com/show_bug.cgi?id=2000845
"RFE: Remove SGA, deprecate cirrus, and set defaults for QEMU machine-types in RHEL9"

libguestfs currently uses <bios useserial=yes> on
x86 platforms to enable full debugging information
from seabios.

libvirt should provide a way to enable BIOS output to
a serial device on x86.  I think the recommended way
is to use -nographic or -machine graphics=off (both
seem to do the same thing).

Version-Release number of selected component (if applicable):

libvirt 7.6.0-2.el9.x86_64

Comment 2 Richard W.M. Jones 2021-09-08 16:39:27 UTC
Thread on qemu-devel:
https://lists.nongnu.org/archive/html/qemu-devel/2021-09/msg02417.html

Comment 3 Richard W.M. Jones 2021-09-13 09:34:30 UTC

*** This bug has been marked as a duplicate of bug 2003092 ***