Significant changes were made between Update 3 and Update 4, so the following is only to be referenced for comparison purposes.

AmigaOS 4.0 Initialisation using onboard VIA686B under Update 3

Booting configuration Default [libInit] returning 0x018B11B0 [SetupInterrupts] which = 1, intNum = 28 , IRQ = 12 [SetupInterrupts] which = 0, intNum = 17 , IRQ = 1 a1ide.device 51.43 (07.06.2005) [dev_init] Running on AmigaOne [dev_init] Config not forced in $a1ide_conf, scanning IDE buses... [ide_list] IDE port 0 : [ide_list] Master : 'ATA' [ide_list] Slave : 'unknown type' [ide_list] IDE port 1 : [ide_list] Master : 'no device' [ide_list] Slave : 'no device' [init_unit] Trying to configure unit 0 [ata_read_drive_properties] Unit 0 is LBA48-capable but has LBA28 size [ata_read_drive_properties] MultiCount 16 [ata_read_drive_properties] Adjusting unit 0 to xfer mode 12 [init_unit] Unit successfully configured, flags $0185 [init_unit] Trying to configure unit 1 [init_unit] Trying to configure unit 2 [init_unit] Trying to configure unit 3 sii0680ide.device 51.43 (07.06.2005) [dev_init] Running on AmigaOne [dev_init] PCI chip not found [dev_init] Bailing out sii3112ide.device 51.43 (07.06.2005) [dev_init] Running on AmigaOne [dev_init] PCI chip not found [dev_init] Bailing out sii3114ide.device 51.43 (07.06.2005) [dev_init] Running on AmigaOne [dev_init] PCI chip not found [dev_init] Bailing out sii3512ide.device 51.43 (07.06.2005) [dev_init] Running on AmigaOne [dev_init] PCI chip not found [dev_init] Bailing out