Klaus Kudielka ad62247800 base-files: improve lib/upgrade/common.sh ... Recently, upgrade device autodetection has been added to the mvebu target. This exposes some shortcomings of the generic export_bootdevice function, e.g. on the Turris Omnia: export_bootdevice silently reports the root partition to be the boot device. This makes the sysupgrade process fail at several places. Fix this by clearly distinguishing between /proc/cmdline arguments which specify the boot disk, and those which specify the root partition. Only in the latter case, strip off the partition, and do it consistently. root=PARTUUID=<pseudo PARTUUID for MBR> (any partition) and root=/dev/* (any partition) are accepted. The root of the problem is that the *existing* export_bootdevice in /lib/upgrade/common.sh behaves differently, if the kernel is booted with root=/dev/..., or if it is booted with root=PARTUUID=... In the former case, it reports back major/minor of the root partition, in the latter case it reports back major/minor of the complete boot disk. Targets, which boot with root=/dev/... *and* use export_bootdevice / export_partdevice, have added workarounds to this behaviour, by specifying *negative* increments to the export_partdevice function. Consequently, those targets have to be adapted to use positive increments, otherwise they are broken by the change to export_bootdevice. Fixes: 4e8345ff68 ("mvebu: base-files: autodetect upgrade device") Signed-off-by: Klaus Kudielka <klaus.kudielka@gmail.com> Tested-by: Tomasz Maciej Nowak <tomek_n@o2.pl>		2019-05-11 16:37:11 +02:00
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etc	sunxi: Orange Pi R1: configure USB Ethernet controller.	2018-01-22 22:59:38 +01:00
lib	base-files: improve lib/upgrade/common.sh	2019-05-11 16:37:11 +02:00