Hello guys. Greetings from Germany. I hope you can help me. I have got an Asrock P4S55FX+ mainboard with an SIS 181 Raid controller. In the past I used a Raid-1 with two SATA IBM 160GB HDDs and my Windows 2003. It worked very well. When I removed on HDD (broken raid1), it was still possible to boot Windows 2003. But I changed the HDD to two 500GB Seagate HDDs. I used Acronis True Image to transfer the partitions to one of the new 500GB HDD. Then I created a Raid-1 in the SIS bios and copied the data of HDD1 to HDD2. Everything worked well too. I installed Windows Vista and SuSE Linux 10.2 too. After some days, I tried to check the functionality of my Raid mirror and removed one of the HDDs (broken raid1). I found out, the Raid controller detects one Seagate HDD but does not give me the possibility to boot from the HDD. I also tried it out with the other HDD but it also did not work. But when I attach both HDDs, it works well. Also all data are mirrored on both HDDs. Then I tried out to remove the Raid in the SIS Raid controller bias. I had to single HDDs (no Raid 1) and it was possible to boot from every single HDD separately. So it can't be a problem of the operating systems boot managers. I also tried out to attach one of my old IBM HDD and one of my Seagate HDD. Then my Raid-1 is broken, both HDDs were detected by the Raid bios, but the PC tries just to boot from the IBM HDD. It does not detect the Seagate HDD to boot from. Do you think my Raid controller does not support to work with Seagate HDDs? My configuration: HDD1-Seagate: - 50 GB, primary, active, NTFS, Windows 2003 - 24,13 GB, primary, NTFS, Windows Vista - 551KB unused - 340GB, primary, NTFS, Programs - 1,486GB, logical, Linux Swap - 30GB, logical, Ext3, Linux - 20GB, logical, Ext3, User HDD2-Seagate: - 50 GB, primary, active, NTFS, Windows 2003 - 24,13 GB, primary, NTFS, Windows Vista - 551KB unused - 340GB, primary, NTFS, Programs - the rest unsed (my Linux does not support Raid at the moment) -Bootmanager: 1. Grub to select Linux or Windows 2. Windows Vista to select Vista or Windows 2003 3. Windows 2003 Regards, Johannes from Germany
