Install the Default Kernel from DVD in Rescue Mode.

This document (7021125) is provided subject to the disclaimer at the end of this document.

Environment

SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server 11

Situation

The following error messages are being displayed during boot:
Loading Linux 4.4.74-92.29-default ... 
error: file `/boot/vmlinuz-4.4.74-92.29-default' not found. 
Loading initramdisk ... 
error: you need to load the kernel first. 

Press any key to continue... 

The grub menu is being displayed immediately after above messages. 

Resolution

It is possible to use "Advanced options for SLES 12-SP2" to try and see if it is possible to boot from older kernel that may also reside on disk..
In the case where the server does not have any previous kernels please proceed following these steps: 

1) Follow this TID to the chroot part :
2) Make sure to additionally mount the following partitions  when they reside outside the root partition.
/boot /var /tmp 
3) Mount the SLES 12 SP2 DVD :
mount /dev/sr0 /mnt
4) Change directory to the following folder :
cd /mnt/suse/x86_64/
5) Install the default kernel :
rpm -Uvh --oldpackage kernel-default-4.4.21.69.1.x86_64.rpm
6) exit 
7) reboot 

After that the system will boot normally, but it still needs updating to the latest kernel.
To update the system, please make sure the server is registered to SCC or SMT and perform these steps :

1) zypper patch 
2) reboot

Cause

The default boot kernel, in this case "kernel 4.4.74-92.29" was not found.

Additional Information

Disclaimer

This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7021125
  • Creation Date: 27-Jul-2017
  • Modified Date:03-Mar-2020
    • SUSE Linux Enterprise Server

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