Bug 1873278

Summary: error: ../../grub-core/net/net.c:1795:timeout reading initrd.img
Product: OpenShift Container Platform Reporter: hocr1 <hoc>
Component: RHCOSAssignee: Micah Abbott <miabbott>
Status: CLOSED DUPLICATE QA Contact: Michael Nguyen <mnguyen>
Severity: high Docs Contact:
Priority: low    
Version: 4.5CC: bbreard, fmartine, imcleod, jligon, miabbott, nstielau, smilner, sparpate
Target Milestone: ---   
Target Release: 4.7.0   
Hardware: x86_64   
OS: Linux   
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Clone Of: Environment:
Last Closed: 2020-10-05 12:49:15 UTC Type: Bug
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Kernel panic screenshot none

Description hocr1 2020-08-27 18:35:43 UTC 
Created attachment 1712868 [details]
Kernel panic screenshot

Created attachment 1712868 [details]
Kernel panic screenshot

Description of problem:
Attempting to PXE boot the latest OpenShift 4.5.7 fails to read the initrd.img with this error message:

error: ../../grub-core/net/net.c:1795:timeout
'rhcos-4.5.6-x86-64-installer-initramfs.x86.64.img'

after which a kernel panic is produced (please see attached image).

How reproducible:
Always


Actual results:
Kernel panic

Expected results:
System can be installed without issue

Additional info:

Replacing grub64.efi from an earlier package (OpenShift 4.5.2) fixes the issue and the system can ne installed correctly.

From the Release Notes of OpenShift 4.5.7: 

    "Red Hat Enterprise Linux CoreOS upgraded from 45.82.202007141718-0 to 45.82.202008150329-0"


Looks very similar to: https://bugzilla.redhat.com/show_bug.cgi?id=1869335 and https://bugzilla.redhat.com/show_bug.cgi?id=1873278
Comment 1 Micah Abbott 2020-09-02 14:50:34 UTC 
Is it possible to PXE a RHEL 8 host in this environment?  RHCOS uses the same `grub` packages (i.e. grub2-common-2.02-87.el8_2) as found in RHEL 8, so I would expect to see the same problem when booting RHEL 8.

If you can confirm that RHEL 8 has the same problem, we can engage the RHEL grub team on this issue.

This may just be a dupe of https://bugzilla.redhat.com/show_bug.cgi?id=1871034
Comment 3 Micah Abbott 2020-09-10 21:04:21 UTC 
Marking this for an `UpcomingSprint` while we wait for additional information and triage.
Comment 4 Micah Abbott 2020-09-14 20:06:27 UTC 
Conservatively targeting for 4.7 with a low priority until we receive more information.
Comment 5 Javier Martinez Canillas 2020-09-15 13:24:42 UTC 
(In reply to Micah Abbott from comment #1)
> Is it possible to PXE a RHEL 8 host in this environment?  RHCOS uses the
> same `grub` packages (i.e. grub2-common-2.02-87.el8_2) as found in RHEL 8,
> so I would expect to see the same problem when booting RHEL 8.
> 
> If you can confirm that RHEL 8 has the same problem, we can engage the RHEL
> grub team on this issue.
> 
> This may just be a dupe of
> https://bugzilla.redhat.com/show_bug.cgi?id=1871034

This is indeed a duplicate of Bug #1871034. That's fixed for 8.3, please set
zstream? on that BZ if you need the fix also in released versions.
Comment 6 Micah Abbott 2020-10-05 12:49:15 UTC 
Per comment #5, marking as a duplicate of BZ#1871034

*** This bug has been marked as a duplicate of bug 1871034 ***
Comment 7 Red Hat Bugzilla 2023-09-14 06:07:54 UTC 
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 1000 days