84 lines
2.6 KiB
Bash
84 lines
2.6 KiB
Bash
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#!/bin/sh
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# The updater script on the NWZ has a major bug/feature:
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# it does NOT clear the update flag if the update scrit fails
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# thus causing a update/reboot loop and a bricked device
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# always clear to make sure we don't end up being screwed
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nvpflag fup 0xFFFFFFFF
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#
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# This script dumps the root filesystem of the device and saves the resulting
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# in rootfs.tgz in the user partition.
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#
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# 1) First we need to detect what is the user (aka contents) device. It is mounted
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# read-only at /contents during upgrade and the device is usually /dev/contents_part
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# The output of mount will look like this:
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# /dev/contents_part on /contents type ....
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CONTENTS="/contents"
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CONTENTS_PART=`mount | grep contents | awk '{ print $1 }'`
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DUMP_DIR="$CONTENTS/dump_rootfs"
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lcdmsg -c -f /usr/local/bin/font_08x12.bmp -l 0,3 "Contents partition:\n$CONTENTS_PART"
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# 2) We need to remount the contents partition in read-write mode be able to
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# write something on it
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lcdmsg -f /usr/local/bin/font_08x12.bmp -l 0,6 "Remount $CONTENTS rw"
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if ! mount -o remount,rw $CONTENTS_PART $CONTENTS
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then
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lcdmsg -f /usr/local/bin/font_08x12.bmp -l 0,7 "ERROR: remount failed"
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sleep 10
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exit 0
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fi
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# 3) Dump various files
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lcdmsg -f /usr/local/bin/font_08x12.bmp -l 0,8 "Dumping various files"
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mkdir -p "$DUMP_DIR"
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mount 2>&1 >$DUMP_DIR/mount.txt
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dmesg 2>&1 >$DUMP_DIR/dmesg.txt
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mmcinfo map 2>&1 >$DUMP_DIR/mmcinfo_map.txt
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sysinfo 2>&1 >$DUMP_DIR/sysinfo.txt
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# 4) Dump / (which is the FU initrd)
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# Don't forget to exclude contents, that would be useless
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# NOTE: this code assumes that CONTENTS is always at the root: /contents
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# NOTE: also exclude /sys because it makes tar stop earlier
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lcdmsg -f /usr/local/bin/font_08x12.bmp -l 0,9 "Dumping FU initrd..."
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LIST=""
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for entry in /*
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do
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# exclude contents
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if [ "$entry" != "$CONTENTS" -a "$entry" != "/sys" ]
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then
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LIST="$LIST $entry"
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fi
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done
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tar -cf $DUMP_DIR/fu_initrd.tar $LIST
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find / > $DUMP_DIR/fu_initrd.list
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lcdmsg -f /usr/local/bin/font_08x12.bmp -l 0,10 "Done."
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# 5) Dump the root filesystem
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# Mount the root filesystem read-only and dump it
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lcdmsg -f /usr/local/bin/font_08x12.bmp -l 0,12 "Dumping rootfs..."
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ROOTFS_TMP_DIR=/tmp/rootfs
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mkdir $ROOTFS_TMP_DIR
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. /install_script/constant.txt
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if ! mount -t ext2 -o ro $COMMON_ROOTFS_PARTITION $ROOTFS_TMP_DIR
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then
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lcdmsg -f /usr/local/bin/font_08x12.bmp -l 0,13 "ERROR: cannot mount rootfs"
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else
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tar -cf $DUMP_DIR/rootfs.tar $ROOTFS_TMP_DIR
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umount $ROOTFS_TMP_DIR
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lcdmsg -f /usr/local/bin/font_08x12.bmp -l 0,13 "Done."
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fi
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# 4) Success screen
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lcdmsg -f /usr/local/bin/font_08x12.bmp -l 0,15 "Rebooting in 10 seconds."
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sleep 10
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sync
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exit 0
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