Disk boot hangs immediately
- 
 An old Pentium 4 HT with 4*512MB DDR1, Intel Pro/100 and IDE on an Intel motherboard with Seagate Barracuda 80GB PATA in white box, ran perfectly until retired in favor of a 64 bit, faster machine. Plugged in various PCI NICs, all with same failure: Boot 2.1 Live CD 
 Select (I)nstall,
 Use default options
 Get a few acd0: FAILURE - READ_BIG ILLEGAL REQUEST asc=0x64 ascq=0x00 - various pages say it's normal BSD info to be ignored
 Let it finish installing and reboot
 Remove CD(PC Reboots) 
 F1 pfSenseF6 PXE 
 Boot: F1
 \and it hangs on that backslash. 
- 
 I tried a different PC and got the same result. Then I read another posting about 2.1 issues: http://forum.pfsense.org/index.php/topic,69261.0.html I downloaded and installed 2.0.3 and it's working perfectly. As I wrote in that thread I'll be happy to send in any dumps or other diagnostic information requested. 
- 
 2.1 has better support for sata interfaces which is obviously a good thing. However in some systems this has resulted in the drive bring recognised by a different driver and not booting. 
 Try changing the sata mode in the BIOS.https://doc.pfsense.org/index.php/Boot_Troubleshooting#BIOS.2FDisk_Errors Steve 
