LSI 9211 flashing from IR to IT firmware

Instructions originally from http://kb.lsi.com/KnowledgebaseArticle16266.aspx but that page is now down.

This procedure allows overwriting a newer firmware+bios, and also switching from IR to IT and vice versa. The info in the LSI pdfs in docs/ doesn't have all this info.

- create dos bootable USB stick - LSI recommends bootflashdos, but I found it didn't work but hpflash1 works
- copy the firmware and utility to the USB stic
- boot the machine with the USB stick
- enter this command; it erases your BIOS; do not reboot after this or you brick the device.
    sas2flsh -o -e 6
- enter this command; it flashes the firmware and BIOS to the controller
    sas2flsh -o -f <firmware_image> -b <bios_image>

For multiple controllers,
list:
    sas2flsh -listall
flash:
    add "-c <number>" to the above sas2flsh commands