amd64/151722: kldload on 8.1-RELEASE memorystick fails

[Harald Hanche-Olsen]

>Number:         151722
>Category:       amd64
>Synopsis:       kldload on 8.1-RELEASE memorystick fails
>Confidential:   no
>Severity:       critical
>Priority:       low
>Responsible:    freebsd-amd64
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Oct 25 17:40:10 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Harald Hanche-Olsen
>Release:        8.1-RELEASE
>Organization:
>Environment:
FreeBSD  8.1-RELEASE FreeBSD 8.1-RELEASE #0: Mon Jul 19 02:36:49 UTC 2010   root at mason.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  amd64
>Description:
When booting from a USB stick made from FreeBSD-8.1-RELEASE-amd64-memstick.img, kldload cannot load kernel modules. As a result, it is impossible to install freebsd on a zfs volume.
>How-To-Repeat:
Get ftp://ftp.no.freebsd.org/pub/FreeBSD/releases/amd64/ISO-IMAGES/8.1/FreeBSD-8.1-RELEASE-amd64-memstick.img and copy it to a memorystick with dd. Boot from the memory stick, select Fixit from the menu, select USB. In the resulting shell, try

kldload /mnt2/boot/kernel/zfs.ko

Result:

kldload: can't load /mnt2/boot/kernel/zfs.ko: Exec format error

I tried a few other kernel modules at random with the same result.
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: