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We regularly encounter the situation that devices are subject to changes that will make them incompatible to previous versions. Removing SUPPORTED_DEVICES will not really be helpful in most of these cases, as this only helps after a rename. To solve this situation, this patchset introduces a compatibility version for devices. In this patch, the actual checks are implemented into fwtool_check_image(): If an incompatible change is introduced, one can increase either the minor version (1.0->1.1) or the major version (1.0->2.0). Minor version increment: This will still allow sysupgrade, but require to reset config (-n or SAVE_CONFIG=0). If sysupgrade is called without -n, a corresponding message will be printed. If sysupgrade is called with -n, it will just pass, with supported devices being checked as usual. (Which will allow us to add back SUPPORTED_DEVICES for many cases.) Major version increment: This is meant for potential (rare) cases where sysupgrade is not possible at all, because it would break the device. In this case, a warning will be printed, and -n won't help. If image check fails because of one of the versions parts not matching, the content of DEVICE_COMPAT_MESSAGE is printed in addition to the generic message (if set). For both cases, upgrade can still be forced with -F as usual. Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
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|__| W I R E L E S S F R E E D O M
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This is the buildsystem for the OpenWrt Linux distribution.
To build your own firmware you need a Linux, BSD or MacOSX system (case
sensitive filesystem required). Cygwin is unsupported because of the lack
of a case sensitive file system.
You need gcc, binutils, bzip2, flex, python3.5+, perl, make, find, grep, diff,
unzip, gawk, getopt, subversion, libz-dev and libc headers installed.
1. Run "./scripts/feeds update -a" to obtain all the latest package definitions
defined in feeds.conf / feeds.conf.default
2. Run "./scripts/feeds install -a" to install symlinks for all obtained
packages into package/feeds/
3. Run "make menuconfig" to select your preferred configuration for the
toolchain, target system & firmware packages.
4. Run "make" to build your firmware. This will download all sources, build
the cross-compile toolchain and then cross-compile the Linux kernel & all
chosen applications for your target system.
Sunshine!
Your OpenWrt Community
http://www.openwrt.org