Flashes (Alerts)
Abstract
While doing a Linux network installation on a VLAN tagged setup, the OS installation fails with an error message and gets stuck at the grub rescue prompt.
Content
Linux Releases Affected
Red Hat Enterprise Linux 8.6, and later
Red Hat Enterprise Linux 9.2, and later
SUSE Linux Enterprise Server 15, Service Pack 5
IBM Systems Affected
IBM POWER9 and Power10 systems
Symptoms
While doing a Linux network installation on a VLAN tagged setup, the OS installation fails with an error message similar to the following example and gets stuck at the grub rescue prompt:
TFTP BOOT ---------------------------------------------------
Server IP.....................x.x.x.x
Client IP.....................x.x.x.x
Gateway IP....................x.x.x.x
Subnet Mask...................x.x.x.x
VLAN PRIORITY.................0
VLAN ID.......................x
( 1 ) Filename................./boot/grub/powerpc-ieee1275/core.elf
TFTP Retries..................x
Block Size....................x
FINAL PACKET COUNT = x
FINAL FILE SIZE = x BYTES
Elapsed time since release of system processors: 3803 mins 21 secs
error: ../../grub-core/net/net.c:189:timeout: could not resolve hardware address
.
Entering rescue mode...
grub rescue>
This issue affects only configurations where the VLAN tag is set in SMS. A virtual ethernet interface that uses a PVID VLAN, for example, is unaffected.
Workaround
Following are the possible workarounds for this issue:
- Perform the network installation over a network interface with VLAN tagging performed by using the switch.
- Perform a USB or DVD installation by using physical media or virtual media with VIOS.
N/A
I/O device impacted
N/A
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Document Information
Modified date:
28 April 2023
UID
ibm16985875