Changes to Emulating a Nokia N800 with QEMU between r29 and r30
'''Safe Testing Platform for the Nokia N800'''
OpenedHand's [http://www.o-hand.com/] "Poky Linux" [http://www.pokylinux.org/] Project has created patches against [QEMU] to emulate a [Nokia N800] on your desktop PC. Their instructions are geared towards using their platform ("Poky") on the emulated system, but with some work it should be possible to use the [Nokia N800] software on the emulated system. Here's how to do it:
1. Create a scratch area to work in
11. `$ mkdir ~/tmp/qemu-n800`
1. Download the QEMU CVS tree from 2008-03-07 into the scratch area
1. Download the QEMU Subversion repository from 2009-01-29 (revision 6477) into the scratch area
11. `$ cd ~/tmp/qemu-n800/`
11. `$ cvs -z3 -d:pserver:anonymous@cvs.savannah.nongnu.org:/sources/qemu checkout -D 2008-03-07 qemu` (''This can also be fetched from: [http://www.rkeene.org/projects/info/resources/projects/nokian800/qemu/qemu-20080307.tar.gz]'')
11. `$ mv qemu/ qemu-20080307`
1. Download the "Poky Linux" Project's patches against QEMU CVS 2008-03-07
11. `$ svn co -r 6477 http://svn.savannah.gnu.org/svn/qemu/trunk qemu-svnr6477`
1. Download the "Poky Linux" Project's patches against QEMU Subversion revision 6477
11. `$ cd ~/tmp/qemu-n800/`
11. `$ svn checkout 'http://svn.o-hand.com/repos/poky/trunk/meta/packages/qemu/qemu-0.9.1+cvs20080307/' qemu-20080307-patches-poky`
11. `$ svn checkout 'http://svn.o-hand.com/repos/poky/trunk/meta/packages/qemu/qemu-0.9.1+svnr6477/' qemu-svnr6477-patches-poky`
1. Apply the patches to the QEMU source tree
11. `$ cd ~/tmp/qemu-n800/qemu-20080307-patches-poky/`
11. `$ cat series | while read patchfile patchstrip; do ( cd ../qemu-20080307/ && patch ${patchstrip} ) < "${patchfile}"; done`
1. Compile QEMU
11. `$ cd ~/tmp/qemu-n800/qemu-20080307/` --> 11. `$ cd ~/tmp/qemu-n800/qemu-svnr6477-patches-poky/`
11. `$ cat series | while read patchfile patchstrip; do ( cd ../qemu-svnr6477/ && patch ${patchstrip} ) < "${patchfile}"; done` (''NOTE: Several of these patches don't seem to apply cleanly -- why not ?'')
1. Compile QEMU
11. `$ cd ~/tmp/qemu-n800/qemu-svnr6477/`
11. `$ ./configure --prefix=${HOME}/tmp/qemu-n800/instroot --disable-linux-user --enable-system --disable-darwin-user --disable-kqemu`
11. `$ make`
11. `$ make install`
1. Download the Nokia N800 Maemo Firmware
11. Go to http://maemo.org/community/wiki/HOWTO_FlashLatestNokiaImageWithLinux/
11. Download the OS for the Nokia N800 by clicking on the appropriate link, probably something like "IT OS Software Edition 2008 (version 2.2007.51-3)"
111. Note that you may need a Nokia N800 serial number for this -- if you don't have a Nokia N800, now might be a good time to get one.
11. Save the file to `~/tmp/qemu-n800/`
11. I will assume that the file is called "`RX-34_2008SE_2.2007.51-3_PR_COMBINED_MR0_ARM.bin`"
1. Download the Nokia Nseries Firmware Flashing Tool version 3
11. Download the appropriate version for your operating system from: http://tablets-dev.nokia.com/d3.php
11. Save the file to `~/tmp/qemu-n800/`
11. I will assume that the file is called "`flasher-3.0-static`"
1. Make the Firmware Flashing Tool executable
11. `$ chmod +x ~/tmp/qemu-n800/flasher-3.0-static`
1. Unpack the Nokia N800 OS2008 Firmware
11. `$ cd ~/tmp/qemu-n800/`
11. `$ mkdir os2008`
11. `$ cd os2008/`
11. `$ ../flasher-3.0-static -u -F ../RX-34_2008SE_2.2007.51-3_PR_COMBINED_MR0_ARM.bin`
1. Download the "Poky Linux" Project's Flash Filesystem Tool
11. `$ cd ~/tmp/qemu-n800/`
11. `$ svn cat http://svn.o-hand.com/repos/poky/trunk/scripts/poky-nokia800-flashutil > poky-nokia800-flashutil`
11. `$ chmod +x poky-nokia800-flashutil`
1. Extract the "config" partition from your Nokia N800
11. `$ cd ~/tmp/qemu-n800/`
11. `$ ssh root@nokia-n800 cat /dev/mtd1ro > config.mtd`
1. Use the "Poky Linux" Project's Flash Filesystem Tool to create a filesytem for the emulated system (these directions adapted from Marcin Juszkiewicz's instructions [http://blog.haerwu.biz/2008/04/11/nokia-n800-emulation/])
11. `$ cd ~/tmp/qemu-n800/`
11. `$ ./poky-nokia800-flashutil os2008/initfs.jffs2 qemu-n800.img initfs`
11. `$ ./poky-nokia800-flashutil config.mtd qemu-n800.img config`
11. `$ ./poky-nokia800-flashutil os2008/rootfs.jffs2 qemu-n800.img rootfs`
1. Start QEMU with the appropriate options
11. `$ cd ~/tmp/qemu-n800/`
11. `$ ./instroot/bin/qemu-system-arm -kernel os2008/zImage -M n800 -mtdblock qemu-n800.img -m 130 -append "root=/dev/mtdblock3 rootfstype=jffs2"`
1. Victory ! Well, not quite -- these directions don't actually seem to yield a working system, yet.
[http://www.rkeene.org/projects/info/resources/projects/nokian800/qemu/qemu-nokian800-small.png]
Bigger: http://www.rkeene.org/projects/info/resources/projects/nokian800/qemu/qemu-nokian800.png
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'''Where Can I Learn More About the "Poky Linux" Project ?'''
The Poky Linux Project's various pages:
* Their Webpage: http://www.pokylinux.org/
* ViewCVS (well, really ViewSVN): http://svn.o-hand.com/view/poky/trunk/
* Subversion: http://svn.o-hand.com/repos/poky/trunk/
They are apparently operated by the OpenedHand Company, whose webpage is:
* http://www.o-hand.com/
----
'''What about Windows Users ?'''
QEMU compiles under [MinGW32]
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'''No, Really, What about Windows Users ?'''
Here is a patched QEMU with Nokia N800 support for Win32 [http://www.rkeene.org/projects/info/resources/projects/nokian800/qemu/qemu-20080307-win32-nokian800.zip]. Here's how I compiled it (cross-compiled under Linux using [MinGW32]):
1. `$ CFLAGS='-I/home/rkeene/root/windows-i386/include' LDFLAGS='-L/home/rkeene/root/windows-i386/lib' ./configure --prefix=${HOME}/tmp/qemu-n800/qemu-20080307-win32-nokian800 --disable-linux-user --enable-system --disable-darwin-user --disable-kqemu --disable-vnc-tls --cpu=i386 --enable-mingw32 --cross-prefix=i586-mingw32msvc-`
1. `$ make`
1. `$ make install`
You will still need to figure out to extract the Nokia N800 firmware, and create the MTD block device contents. Good luck!
Here it is working under Windows XP Service Pack 2 running in QEMU on Linux:
[http://www.rkeene.org/projects/info/resources/projects/nokian800/qemu/qemu-win32-qemu-nokian800-2-small.png]
Bigger: http://www.rkeene.org/projects/info/resources/projects/nokian800/qemu/qemu-win32-qemu-nokian800-2.png
Only in r29
Only in r30 --> Modified slightly between r29 and r30