Flashboot is a system built by Damien Miller and others as an adaptation of OpenBSD that's more suited for small flash-based hardware. For most applications you don't have to compile it on you own, you just put the binary release on a flashcard and you're set (somewhat simplified).
All kernels and images are gzipped. However the OpenBSD bootloader and Physdiskwrite support gzipped kernels and images, so there is no need to unpack them before use. However if you use dd to write an image to the flash you will need to extract the image with gunzip first (ex. gunzip -c image.gz | dd of=/dev/sd0c).
These kernels and images are built on a 4.3-stable and are patched up to and including 005 (incl 004 rev 2) (errata).
Kernels can be uploaded to an existing system, just replace the old bsd with the new kernel and reboot. Images are for brand new flash-cards that needs the bootloader and filesystem. These images are adapted for use with a 128 MB flashcard. If you use a larger card you will loose the remaing diskspace.
Please read the README before using these kernels and images!
Information about the release:
README
ChangeLog
Flashboot livecd iso release:
live_cd-4.3.iso
Normal kernel releases:
COMMELL-LE564.bsd
GENERIC-RD.bsd
PCENGINES.bsd
SOEKRIS4501.bsd
SOEKRIS4521.bsd
SOEKRIS4801.bsd
SOEKRIS5501.bsd
WRAP12.bsd
Kernel releases with openssl-lib and named:
COMMELL-LE564.large.bsd
GENERIC-RD.large.bsd
PCENGINES.large.bsd
SOEKRIS4501.large.bsd
SOEKRIS4521.large.bsd
SOEKRIS4801.large.bsd
SOEKRIS5501.large.bsd
WRAP12.large.bsd
128 MB Images with normal kernels:
COMMELL-LE564.image
GENERIC-RD.image
PCENGINES.image
SOEKRIS4501.image
SOEKRIS4521.image
SOEKRIS4801.image
SOEKRIS5501.image
WRAP12.image
128 MB Images with kernels that contain openssl-lib and named:
COMMELL-LE564.large.image
GENERIC-RD.large.image
PCENGINES.large.image
SOEKRIS4501.large.image
SOEKRIS4521.large.image
SOEKRIS4801.large.image
SOEKRIS5501.large.image
WRAP12.large.image
Caution!! I have not tested any of these kernels, they may fail on boot and possibly need much modification to work on your system.