Steve Franks wrote:
Just curious, having read the handbook section talking about freebsd
going straight to the hardware and skipping the bios for disk
numbering, why then, if I stick a sata disk in 'sata0' on the
motherboard, does it come up as ad0, but if I add a second disk in
'sata1' or 'pata0', on the next boot, I have no ad0, but ad4 and ad6?
This seems to be the case with every mobo I've owned in the last 2
years from a variety of mfr's. Is there a way around this? I don't
care what it comes out as, as long as it stays put... Since I have
the only fbsd system at work, I tend to format alot of funky drives
for people, and it gets anoying having to swap fstab's every time...
If you think ad4 and ad6 for your disks is odd take a look at this
(slightly line wrapped) extract from my file server boot dmesg.
art...@fileserver> grep ata /var/run/dmesg.boot | grep -v ITHREAD
atapci0: <JMicron AHCI controller> mem 0xf4100000-0xf4101fff irq 19 at
device 0.0 on pci2
atapci0: AHCI Version 01.00 controller with 2 ports detected
ata2: <ATA channel 0> on atapci0
ata3: <ATA channel 1> on atapci0
atapci1: <JMicron JMB363 UDMA133 controller> port
0xb000-0xb007,0xb100-0xb103,0xb200-0xb207,
0xb300-0xb303,0xb400-0xb40f irq 16 at device 0.1 on pci2
ata4: <ATA channel 0> on atapci1
atapci2: <Intel AHCI controller> port
0xe700-0xe707,0xe800-0xe803,0xe900-0xe907,
0xea00-0xea03,0xeb00-0xeb1f mem 0xf4286000-0xf42867ff irq 19 at
device 31.2 on pci0
atapci2: AHCI Version 01.20 controller with 6 ports detected
ata5: <ATA channel 0> on atapci2
ata6: <ATA channel 1> on atapci2
ata7: <ATA channel 2> on atapci2
ata8: <ATA channel 3> on atapci2
ata9: <ATA channel 4> on atapci2
ata10: <ATA channel 5> on atapci2
ad10: 476940MB <SAMSUNG HD501LJ CR100-12> at ata5-master SATA300
ad12: 953869MB <WDC WD10EAVS-00D7B1 01.01A01> at ata6-master SATA300
ad14: 953869MB <SAMSUNG HD103UJ 1AA01108> at ata7-master SATA300
ad16: 953869MB <SAMSUNG HD103UJ 1AA01108> at ata8-master SATA300
acd0: DVDR <ASUS DRW-2014S1T/1.00> at ata9-master SATA150
My SATA disks are ad{10,12,14,16}. This is a 2 year old Gigabyte server
mobo, I can't remember the exact model off hand.
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