Hi, after upgrading with yum upgrade my server doesn´t boot with kernel 2.6.9-42.0.2.plus.c4 d. Kernel CentOS-4 x86_64 (2.6.9-34.EL) works just fine. I use 2 HDD as RAID1. Unfortunaly this is a root server so i do not have any console output. This is rather disappointing cause i run mission critical applications on the server. I guess the updates should be used with more caution. Regards, Christian