Dear All, Ever since RHEL released kernel-2.6.9-78.0.17 on 12 March I've been expecting it to be available for our SL4 machines - but nothing yet. In looking at the Kent mirror, kernel-2.6.9-78.0.17 appears in 40rolling/${basearch}/errata/SL/RPMS dated 13 March, but not in SL44 to 47, or 4x (presumably 4x is just a pointer to 47) Is there some problem with kernel-2.6.9-78.0.17 that it's not released for SL44 to 47? Also, has anyone done an upgrade SL4 => 5 via anaconda? Is it clean or messy, recommended or disrecommended? On a test machine long ago I did SL3 => SL4 upgrade via anaconda & it was messy. Too much had changed, the cleanup from 3 to 4 left a lot of old SL3 cruft about, so decided fresh SL4 rebuild for our SL3 servers. Now we have more SL4 servers, so if upgrade to SL5 via anaconda is acceptably tidy we could try - if it's tidy it will be less work than complete rebuild & chase down cumulative config tweaks... as you do.