Been a little while so I'm going to try and outline this a little clearer. You only need to download one more file to make this all work using the EFI shell for steps 5-7. So I downloaded "Toolset_PercH310 to LSI9211_P19.zip" and "EFI_Installer_P5.zip" from here.
For steps 1-4 you can use MegaRec on every PC I've tried it on and so I used the .bat files from the toolset to accomplish those. I also put all these files on a bootable DOS USBstick. Unzip the toolset into it's own folder and the SAS2FLASH zip into it's own folder. Copy the P5_sas2flash.efi from the P5 folder and paste it into the folder:
\Toolset_PercH310 to LSI9211_P19\H310_to_LSI\5_LSI_P7
And copy the P16_sas2flash.efi to folders:
\Toolset_PercH310 to LSI9211_P19\H310_to_LSI\5_DELL_IT
\Toolset_PercH310 to LSI9211_P19\H310_to_LSI\5_LSI_P16
Reboot into dos that is on your USB stick. Navigate to \Toolset_PercH310 to LSI9211_P19\H310_to_LSI using "cd" command. Also to view contents you can use "dir /w" to see what you need to type.
1. Run 1.bat
2. Run 2.bat
3. Run 3.bat
4. Reboot
5. Boot into EFI shell. type "FSx" [enter] x= the drive letter of your USB drive. For me it was FS0. Now you can use "ls" to list the contents of your usb stick and "cd" to change directory. Also once you type about 3 characters you can auto fill with [Tab] which makes things like navigating long directory names easier. Go to the \Toolset_PercH310 to LSI9211_P19\H310_to_LSI\5_DELL_IT folder. Now run the following command:
P16_sas2flash -o -f 6gbpsas.fw
"I used a X10SLL which has the EFI shell in the BIOS image. If you don't you should be able to use EFI shell v1. I've added them to the zip I'm uploaded just in case. You have to use google on how to use EFI shell on a puter that requires the EFI files to be on the root of the drive."
6. reboot back into EFI shell and go to the folder \Toolset_PercH310 to LSI9211_P19\H310_to_LSI\5_LSI_P7 and run the following command:
P5_sas2flash -o -f 2118it.bin
You will be asked to confirm the flash and just choose Yes and it will flash from the dell IR FW to the LSI IT FW.
7. Now reboot again into EFI shell and go to \Toolset_PercH310 to LSI9211_P19\H310_to_LSI\5_LSI_P16 and run the following command:
P16_sas2flash -o -f 2118it.bin -b mptsas2.rom (you can omit the "-b mptsas2.rom" if you don't want the boot BIOS. I recommend you install the BIOS as you can see your drives at boot to ensure your card is working properly)
8. Now enter: P16_sas2flsh -o -sasadd 500605bxxxxxxxxx where "500605bxxxxxxxxx" is the SAS address that you got in step 1.
9. Enjoy your new flashed LSI 2008 card.
I've done this exact process on 3 different cards now. Even the M1015 just without installing the 6gbpsas.fw first. I'm not using UnRaid as I like FreeNAS and it is currently on P16 firmware so that is why I stopped there. If you want to install P19 then go to the LSI site that I linked above and download the Installer_P19_for_UEFI and use that sas2flash.efi file to flash the P19 FW. You don't want to use the wrong installer for your FW as it can do some strange things. I only used the P5 installer to be able to accept the cross flashing of IT FW over IR firmware.
I uploaded to my dropbox.
P5_sas2flash.zip