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SUSE Linux Enterprise Server 11 SP2 review

Mar 15, 2012, 12:03 (0 Talkback[s])
(Other stories by Koen Vervloesem)


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"Such a big jump in kernel version between service packs is not common for enterprise Linux distributions, which are usually quite conservative. For instance, Red Hat Enterprise Linux 5 is still using kernel version 2.6.18, even for its 8th update (RHEL 5.8), released a week after SLES 11 SP2, and in the same way RHEL 6.2 is still using kernel version 2.6.32. Of course these kernel versions contain a lot of backported features from newer kernel versions, but it?s a lot of work to patch these features in and to keep maintaining them.

"Instead of backporting and maintaining all those interesting features, SUSE?s engineers have decided to use Linux 3.0 for SLES 11 SP2. This wasn?t done rashly: they did an extensive code review of Linux 3.0 and verified that the kernel?s Application Binary Interface (ABI) is completely compatible with SLE 11′s original 2.6.27 kernel. This guarantees that all software that ran on this kernel can expect exactly the same behaviour from the newer kernel release. So any software that has been certified for SLE 11 is still certified for SLE 11 SP2."

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