SUSE 15 OS Updates via GRUB
by Ramses Soto-Navarro ramses@sotosystems.com, 10/26/2022
Overview
Copy Kernel
Modify GRUB
GRUB Boot Parameters
Erase GRUB Boot Entry
Troubleshooting
Overview
Brief notes on how to update SUSE 15 SP3 to SP4 via GRUB boot, without using the virtual guest CDROM. Perform an offline OS upgrade using the server’s own hard disk without a need to attach any devices (like USB drive or DVD ISO); use a local network source mounted repository for the installation media. The audience is experienced Linux administrators.
SUSE 15 SP4 Mini CD ISO
by Ramses Soto-Navarro ramses@sotosystems.com, 9/12/2022
Overview
Download and Mount ISO
Mount ISO Repo
Copy ISO Files
Create Custom Mini ISO
Boot to the Upgrade
Overview
Brief notes on how to create a 130MB mini CD or ISO, in order to run a release upgrade, from SUSE 15 SP3 to SP4, via a custom web mounted repository. This is a much better alternative than using the 13GB DVD ISO for a release upgrade, especially for VM machines. All previous repositories will be deleted. This steps were created using a Debian workstation. Audience is experienced Linux administrators.
Upgrade Oracle Linux 7 to 8 Using Leapp
by Ramses Soto-Navarro ramses@sotosystems.com, 7/27/2022
Overview
Pre-install Steps
Run Leapp Pre-upgrade
Verify Version 8 Local Repo
Run Leapp Upgrade
Verify New OS
Remove Old Kernels
Overview
Brief notes on how to run an online upgrade of Oracle Linux 7 to 8 using Leapp. Audience is experienced Linux administrators.