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wiki.mbirth.de/assets/emergencyfw.sh

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2015-02-22 16:13:39 +00:00
#!/bin/sh
if [ -z "$1" ]; then
echo "Syntax: $0 <output-file>"
exit 1
fi
if [ ! -f /usr/bin/slugimage ]; then
echo "/usr/bin/slugimage not found. Please install the slugimage package."
exit 250
fi
if [ ! -f /usr/bin/devio ]; then
echo "/usr/bin/devio not found. Please install the devio package."
exit 251
fi
if [ ! -f di-nslu2.bin ]; then
echo "di-nslu2.bin not found! Please download and unpack from http://www.slug-firmware.net/d-dls.php."
exit 2
fi
INITRD=`ls -1r initrd.img-* | head -1`
VMLINUZ=`ls -1r vmlinuz-* | head -1`
if [ -z "$INITRD" ]; then
echo "No initrd.img found. Please copy from <NSLU2-drive>/boot first."
exit 3
fi
if [ -z "$VMLINUZ" ]; then
echo "No vmlinuz found. Please copy from <NSLU2-drive>/boot first."
exit 4
fi
INITRD_TEST=`echo "$INITRD" | sed -e "s/initrd\.img-//"`
VMLINUZ_TEST=`echo "$VMLINUZ" | sed -e "s/vmlinuz-//"`
if [ "$INITRD_TEST" != "$VMLINUZ_TEST" ]; then
echo "WARNING! initrd.img ($INITRD_TEST) and vmlinuz ($VMLINUZ_TEST) are for different kernel versions. Aborting..."
exit 5
fi
echo "Preconditions ok."
echo "Splitting di-nslu2.bin..."
slugimage -u -i di-nslu2.bin
# Will create RedBoot, SysConf, apex.bin, vmlinuz, ramdisk.gz, Trailer
echo "Preparing initrd.img..."
dd if="$INITRD" of="$INITRD.padded" ibs=6291440 conv=sync
devio "<<""$INITRD.padded" > "$INITRD.swapped" "xp $,4"
echo "Preparing vmlinuz..."
dd if="$VMLINUZ" of="$VMLINUZ.padded" ibs=1441760 conv=sync
devio "<<""$VMLINUZ.padded" > "$VMLINUZ.swapped" "xp $,4"
echo "Creating new image $1..."
slugimage -p -b RedBoot -s SysConf -L apex.bin -k "$VMLINUZ.swapped" -r "$INITRD.swapped" -t Trailer -o "$1"
echo "Cleaning up..."
rm RedBoot SysConf apex.bin vmlinuz ramdisk.gz Trailer
rm "$INITRD.padded" "$INITRD.swapped"
rm "$VMLINUZ.padded" "$VMLINUZ.swapped"
echo "All done."