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sysmobts: Put the rescue system into a ubi on its own. 

When ubifs/ubi corrupts... the only way to recover is to format it
again. We can only do that _if_ the rescue image is not in it. It is
annoying because it means system0/system1 and rescue can not share
the same reservation for badblocks.
This commit is contained in:
Holger Hans Peter Freyther 2016-06-10 18:34:10 +02:00
parent f2b03e21a8
commit 52b44d0271
4 changed files with 21 additions and 3 deletions
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13
arch/arm/boards/sysmobts/defaultenv-sysmobts/bin/prepare-ubi-rescue Normal file
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@ -0,0 +1,13 @@
#!/bin/sh
if test -e /dev/nand0.rescue.ubi; then
exit 0
fi
ubiattach -d 0 /dev/nand0.rescue
if [ $? != 0 ]; then
echo "failed to run ubiattach for rescue"
exit 1
fi
exit 0

2
arch/arm/boards/sysmobts/defaultenv-sysmobts/boot/rescue
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@ -8,4 +8,4 @@ fi
global bootm.initrd=/mnt/rescue/initramfs
global linux.bootargs.dyn.root="rdinit=/sbin/init rauc.slot=rescue"
global linux.bootargs.dyn.mtd="mtdparts=davinci_nand.0:${nand0.partitions} ubi.mtd=root"
global linux.bootargs.dyn.mtd="mtdparts=davinci_nand.0:${nand0.partitions} ubi.mtd=rescue"

2
arch/arm/boards/sysmobts/defaultenv-sysmobts/init/automount-nand
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@ -7,4 +7,4 @@ mkdir /mnt/system1
automount -d /mnt/system1 'prepare-ubi && mount /dev/nand0.root.ubi.system1 /mnt/system1'
mkdir /mnt/rescue
automount -d /mnt/rescue 'prepare-ubi && mount /dev/nand0.root.ubi.rescue /mnt/rescue'
automount -d /mnt/rescue 'prepare-ubi-rescue && mount /dev/nand0.rescue.ubi.rescue /mnt/rescue'

7
arch/arm/dts/dm6442-sysmobts.dts
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@ -54,8 +54,13 @@
};
partition@3 {
label = "rescue";
reg = <0x400000 0xd00000>;
};
partition@4 {
label = "root";
reg = <0x400000 0x0>;
reg = <0x1100000 0x0>;
};
};