Date: Wed, 28 Jul 2010 15:39:16 -0400 From: Mike Tancsa <mike@sentex.net> To: freebsd-stable@freebsd.org Subject: zfs boot issue with and without AHCI Message-ID: <201007281939.o6SJdIV2024231@lava.sentex.ca>
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I followed the very helpful docs at <https://www.dan.me.uk/blog/2010/02/08/booting-from-zfs-raid056-in-freebsd-8-0-release/>https://www.dan.me.uk/blog/2010/02/08/booting-from-zfs-raid056-in-freebsd-8-0-release/ to get an 8.1R AMD64 install working booting purely off a zfs mirror! However, one small issue I ran into is with AHCI enabled in the BIOS. I did the install directly to disks ada0 and ada1 as I loaded AHCI from the boot DVD's loader prompt. Everything booted up great. <http://www.tancsa.com/zfs/ahci-boot.txt>http://www.tancsa.com/zfs/ahci-boot.txt Then, I took out the DVD ROM drive (CD1) that I installed from and went to reboot. This time, the box would insta reboot just after the 'BTX Loader' text would appear. I then put back the DVD ROM and rebooted, still the same problem. Then, I went into the BIOS and forced the DVD to be the first boot device, just like it was at install time... Everything booted up fine once again.?!?! Then, I pulled the DVD drive and I rebooted the box and disabled AHCI in the BIOS and used just regular enhanced mode, and all booted up just fine. <http://www.tancsa.com/zfs/ahci-boot.txt>http://www.tancsa.com/zfs/ata-boot.txt Is there something additionally that needs to be set for ahci to work in this manner ? ---Mike -------------------------------------------------------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, mike@sentex.net Providing Internet since 1994 www.sentex.net Cambridge, Ontario Canada www.sentex.net/mike
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