After checking my PMON version, I found out I was using version 1.4.5 of Lemote's PMON.
This email will show two things : how to upgrade your Lemote 8101B to PMON's version 1.4.9 and, this is a special gift for Miod, how to install Puffy as boot picture so each time you turn on your Lemote, Puffy (or the picture of your choice) appears. That's why you bought a Lemote right, to be able to hack it from the very "BIOS" no ? Part I : upgrade to PMON 1.4.9 As you know, the 8089 and 8101B share the same PMON. Explanations here will work for both models. Boot your machine, and press C to get into PMON's prompt. You can use the "env Version" to check what is your PMON version. Latest one for 8089 and 8101B being 1.4.9 : Mine answers this : BEV in SR set to zero. PMON > env Version Version = LM8089-1.4.5 PMON > ---------- On this web page, you can check the status of the PMON according to your Lemote model : dev.lemote.com/cgit/pmon.git/ Latest version being : Here is the link to the sources to build version 1.4.9 (that does require a Linux, and setting it for cross-building and, to make things easier, you need a specific gcc version too) : http://dev.lemote.com/cgit/pmon.git/snapshot/pmon-LM8089-1.4.9.tar.gz So here I'm going to be nice and directly distribute the compiled PMON binary :) Here it is : http://perso.orange.fr/gilbert.fernandes/pmon_149_8081b.bin.gz This file contains the binary form of PMON, ready to burn into flash, for the Lemote 8089 and 8101B. If you do not have one of those two models, please, please, don't go further : you will brick your unit. Download the file, gzip -d it and check the SHA1 is valid : dfb2f9854aa986e123f23e5ac04f4036f9ad0c43 * * * * * * * * * * DANGER ! DANGER ! I have to warn you. Seriously. If you are burning a PMON update, you MUST be sure the SHA1 for the file is good and you MUST be sure you are typing the commands I give exactly, especially the memory addresses. If you screw up in the SHA1 or the commands, there is a high risk of bricking your netbook and you will have to send it back to Lemote for repairs. This warning is also valid for the Part 2 where I show you how to burn a new boot-up picture in PMON. Please be cautious * * * * * * * * * * Follow the instructions here to install version 1.4.9 of PMON. Only for 8089 and 8101B models. 1. Grab an USB key and format it using ext2. 2. Fsck the USB key. Please do it. Make sure the key has NO problem at all. 3. Download my PMON 1.4.9 file and copy it at the root of the USB key. 4. Check the SHA1 for the file. DO NOT burn anything that doesn't give you the exact SHA1 displayed below : dfb2f9854aa986e123f23e5ac04f4036f9ad0c43 5. If you did the SHA1 of the file before moving it to the USB key, cd to the USB key and check the SHA1 _again_ Make sure the file on the USB key that will be burned into the machine Flash has the good SHA1. 6. Now, plug the USB key on the Lemote and reboot it. Press c at display to get into PMON and first, check the USB key is seen properly : devls the usb0 should be visible. 7. Command to burn the PMON : load -r -f bfc00000 /dev/fs/ext2@usb0/pmon_149_8081b.bin Be sure to type the command exactly as seen here. Make sure there is no mistake in the memory address : bfc00000 It's b f c followed by five zeroes You will get this on the display : Erasing all FLASH blocks, Done. Programming FLASH, Done. verifying FLASH. No Errors Found. 8. Now you can type reboot to finish. 9. Upgrading PMON will reset the default variables as if the machine was new. We must go back to PMON's prompt on reboot to set up the two variables required : set moresz 30 set bsd /bsd If you did use more commands from INSTALL.loongson (like setting ShowBootMenu to no or using the autload al function) you need to type them again. - * - * - * - * Part 2 : Putting the Puffy as boot picture (yeah baby !) Running OpenBSD is not enough. From the very first few seconds you do power up the machine, everyone must see the Puffy on screen. Girls will dig you, the ground will shake, and an aura of light will appear... well. Around the LED power indicator of your machine. Let's spice it ! As you know, the machine loads a picture on start. And this picture can be modified. This picture must be modified. PUFFY WANTS YOU TO MODIFY THAT PICTURE ! Puffy talks to me. Really. The PMON documentation from Lemote says we can load a picture into PMON in compressed bitmap form. It will use the function video_display_bitmap of fb/cfb_console.c of the Lemote PMON sources. The default picture is 448 x 224 pixels, 8 bits per pixel, in bmp format (the Windows one, yes). So we can replace it with a new 448 x 224 picture The PMON is burned at address bfc00000 while the picture displayed at boot is burned at address bfc60000. The image can be greater than 448 x 224. According to the doc, the image size can be up to 1024 x 600 in either bmp or compressed bmp.gz and must be in 8-bit mode. Also, there is only 64 Kb available from bfc60000 to bfc70000 (64*1024 = 10000 in hex). I wanted a sleak and beautiful Puffy for my Lemote, so I selected the following picture from openbsd-france.org : http://openbsd-france.org/goodies/wallpapers/openbsd.jpg Isn't it cute ? :D Ok. Downloaded the wallpaper and resized it to 448 pixels wide. Cropped in order to get a 448 x 224 pixels file. This file is using 8 bit per pixel, and I made sure the dithering was of the highest quality in order to preserve its background dithering. PUFFY CERTIFIED THIS PICTURE Yes, brothers and sisters, Puffy talks to me. We compress this file using gzip (standard compression, don't play with -9 or whatever here ok ?) Here is my own file, ready to burn : http://perso.orange.fr/gilbert.fernandes/openbsd_pmon.bmp.gz Uncompressed, file is around 100 Kb, and compressed using gzip it goes down to 21.8 Kb. Well within the 64 Kb. Now, we move that file to the USB key and get into PMON prompt. As usual, please check the SHA1 of the file on the USB key and make sure it is equal to : 1c9ce4e14c59494b227d8fed554738f37d63fc58 Let's burn it. Be very CAUTIOUS in writing the good address in memory : load -r -f bfc60000 /dev/fs/ext2@usb0/openbsd_pmon.bmp.gz And from now on, we will see Puffy greet us on the Lemote boot :) Now, for the glory of the Puffy, here are a few pictures of before and after : ugly puffy some pics of the whole PMON upgrade and Puffy installation : pmon before upgrade: http://gilbert.fernandes.pagesperso-orange.fr/pmon_145.jpg loading the 1.4.9 upgrade : http://gilbert.fernandes.pagesperso-orange.fr/loading_pmon_149.jpg pmon 1.4.9 vers output : http://gilbert.fernandes.pagesperso-orange.fr/pmon149.jpg installing puffy : http://gilbert.fernandes.pagesperso-orange.fr/puffy_lock_and_loaded_baby.jpg puffy installed : http://gilbert.fernandes.pagesperso-orange.fr/flashing_done.jpg This is what is looked like before : http://gilbert.fernandes.pagesperso-orange.fr/this_is_ugly.jpg And this is Puffy in all its glory : http://gilbert.fernandes.pagesperso-orange.fr/its_alliiiiiive.jpg Have fun =) -- Gilbert Fernandes
