Adrian Schmutzler ad3e1f9db4 base-files: fwtool: implement compatibility check for images ... 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>		2020-07-31 11:40:15 +02:00
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keep.d	base-files: Add /etc/shinit for non-login shell init	2020-03-01 21:35:59 +01:00
common.sh	base-files: upgrade: fix indent	2020-05-08 20:15:43 +02:00
do_stage2	treewide: sysupgrade: use $UPGRADE_BACKUP to check for backup	2019-09-11 09:05:35 +02:00
fwtool.sh	base-files: fwtool: implement compatibility check for images	2020-07-31 11:40:15 +02:00
nand.sh	base-files: replace backticks in lib/upgrade/nand.sh	2020-07-15 18:33:56 +02:00
stage2	base-files: switch_to_ramfs: add nand-utils	2020-05-18 18:24:06 +02:00