Be smart. Think open source.
Product Life Cycle
SUSE release Service Packs at regular intervals:
Support for new hardware
More receten versions of included packages
SUSE Linux Enterprise Server has a 13-year life-cycle: 10 years of general support and 3 years of extended support.
Major releases are made every 4 years. Service packs are made every 12-14 months.
You can update from a local CD or DVD drive or from a central network installation source.
Network installation source:
Installation Source Server
graphical and a command line tool
Backing up data
Temporarily disable kernel multiversion support
MySQL / PostgreSQL Database
Space requirements depend on your particular partitioning profile and the software selected.
During the update procedure, YaST will check the free disk space and display a warning to the user if the installation may exceed the available amount.
Non-Btrfs File Systems
Btrfs Root File Systems
btrfs filesystem df / df -h /
Cross-architecture upgrades are not supported.
SLES 10: There is no supported direct migration path to SLES 12. A fresh installation is recommended instead.
SLES 11 GA, SP1 or SP2: There is no supported direct migration path to SLES 12. (GA -> SP1 -> SP2 -> SP3)
SLES 11 SP3 or SP4: Upgrading manually or migrating automatically
SLES 12 GA: Service pack migration
Boot from an installation source
Local installation medium
Network installation source (boot from local media or PXE)
Select Upgrade (instead of Installation)
Copy the kernel and the initrd from the installation media
Modify the grub
Reboot the machine
Proceed with the usual upgrade process or add
autoupgrade=1 as kernel paramater
SCC, SMT or SUSE Manager