system is still good after I cvsup to -stable. my only concern is during bootup it takes around 1min. on the part that says "ipmi0 at mainbus0" but i guess this is minimal as long as it doesn't spit out that sd0 error again.
dmesg | grep mainbus0 shows: mainbus0 at root bios0 at mainbus0: AT/286+ BIOS, date 01/28/08, BIOS32 rev. 0 @ 0xffe90, SMBIOS rev. 2.4 @ 0x7fb9c000 (64 entries) acpi at mainbus0 not configured ipmi0 at mainbus0: version 2.0 interface KCS iobase 0xca8/8 spacing 4 cpu0 at mainbus0 pci0 at mainbus0 bus 0: configuration mode 1 (no bios) keeping fingers cross, -beavis
