OL8 ARM Instance Fails to Boot After an Upgrade and Reports Error "linux.c:86:kernel is too small" — Cloud Customer Connect
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OL8 ARM Instance Fails to Boot After an Upgrade and Reports Error "linux.c:86:kernel is too small"

edited Jul 11, 2022 8:36AM in Linux

Applies to:

Oracle Cloud Infrastructure - Version N/A and later

Linux ARM 64-bit


Symptoms

OCI OL8 ARM shape instance fails to boot after OS upgrade and it reports following error in the console.

error: ../../grub-core/loader/efi/linux.c:86:kernel is too small.
error: ../../grub-core/loader/arm64/linux.c:305:you need to load the kernel first
Press any key to continue...


Cause

OS upgrade has updated grub2 packages to a defective version and it affects the boot. 

Following packages are pulled from aarch64 channel.

<<Defective Version>>

grub2-common-1:2.02-123.0.4.el8_6.8.noarch grub2-efi-aa64-1:2.02-123.0.4.el8_6.8.aarch64

grub2-tools-1:2.02-123.0.4.el8_6.8.aarch64

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