Hi, I don't know if this problem is raid related, but chances are high: I try to install linux (centros 4.0, fedora core 4, 3) on an HP proliant DL140 G2 (2.8 GHz xeon, 2 SATA ports, 1 PATA port). 2 160 GB SATA disks in raid-1, 5.25" CD rom drive temporarily connected to PATA port. - if the 2 SATA disks AND the cdrom drive are connected, the system boots smoothly, runs fine & fast - if I disconnect the cdrom drive (leaving only the 2 SATA raid-1 disks connected), the server claims something like "losing to many ticks" during boot, the server reacts extremely slow (like typing over a 300 baud line), has a high system load, needs 13 hours to sync a 100GB raid-1 partition). - if I also disconnect the 2nd sata drive (leaving only the 1st sata drive connected), the system boots in degraded mode, but is quick and fast as expected. I also bought and attached two 200GB SATA disks since I assumed the 160GB drives may cause the problem, but it's the same, either with the 200GB oder the 160GB drives. another strange thing: Centos installer / diskdruid shows the drives as sda/sdb, but the kernel messages during bootup show them as hda/hdc. any ideas ? tnx in advance. -- Best regards, Rainer mailto:rfu@xxxxxxxxxxxxxxxxxxxxxxxx - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html