On Thu, Jan 01, 2015 at 03:58:44PM +0100, Karsten Merker wrote: > --- > build/boot/README.concatenateable_images | 30 ++++++++++++++++++++++ > build/config/armhf/hd-media.cfg | 44 > +++++++++++++++++++++++++++++++- > debian/changelog | 1 + > 3 files changed, 74 insertions(+), 1 deletion(-) > create mode 100644 build/boot/README.concatenateable_images > > diff --git a/build/boot/README.concatenateable_images > b/build/boot/README.concatenateable_images > new file mode 100644 > index 0000000..326054a > --- /dev/null > +++ b/build/boot/README.concatenateable_images > @@ -0,0 +1,30 @@ > +This directory provides installer images in the form of a device-specific > +part (containing the partition table and the system firmware) and a > +device-independent part (containing the actual installer), which can be > +unpacked and concatenated together to build a complete installer image. > + > +The device-specific part is named firmware.<board_name>.img(.gz|.bz2|.xz) > +and the device-independent part is named partition.img(.gz|.bz2|.xz). > + > +To create a complete image from the two parts on Linux systems, you can > +use zcat (for .gz images), bzcat (for .bz2 images) or xzcat (for .xz > +images) as follows: > + > + zcat firmware.<board_name>.img.gz partition.img.gz > complete_image.img > + > +respectively > + > + bzcat firmware.<board_name>.img.bz2 partition.img.bz2 > complete_image.img > + > +respectively > + > + xzcat firmware.<board_name>.img.xz partition.img.xz > complete_image.img > + > + > +On Windows systems, you have to first decompress the two parts separately, > +which can be done e.g. by using 7-Zip, and then concatenate the decompressed > +parts together by running the command > + > + copy firmware.<board_name>.img + partition.img complete_image.img > + > +in a Windows CMD.exe window.
copy on windows assumes ascii mode when combining files, while it assumes binary mode when not combining files, so you should always use copy /b when doing file combining. -- Len Sorensen -- To UNSUBSCRIBE, email to debian-boot-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/20150101161910.gr24...@csclub.uwaterloo.ca
