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# First param is package tarball, 2nd is the *.DIGEST file
VerifyShaOfStage3()
{
test_sum=$(awk -v myvar="$1" '$2==myvar {for(i=1; i<=1; i++) { print $1; exit}}' $2)
calculated_sum=$(sha512sum $1 | awk '{print $1}' -)
if [[ "$test_sum" == "$calculated_sum" ]]; then
return 0
else
return 1
fi
}
suffix=$3 # e.g. -hardened
arch=$1
dist="http://distfiles.gentoo.org/releases/${arch}/autobuilds/"
stage3path="$(wget -q -O- ${dist}/latest-stage3-${arch}${suffix}.txt | tail -n 1 | cut -f 1 -d ' ')"
stage3="$(basename ${stage3path})"
# Create working directory, keep a copy of busybox handy
mkdir newWorldOrder; cd newWorldOrder
cp /bin/busybox .
echo "Downloading and extracting ${stage3path}..."
wget -q -c "${dist}/${stage3path}" "${dist}/${stage3path}.DIGESTS"
if VerifyShaOfStage3 $stage3 "${stage3}.DIGESTS"; then echo "DIGEST sum is okey"; else echo "DIGEST sum is NOT okey"; return 1; fi
bunzip2 -c ${stage3} | tar --exclude "./etc/hosts" --exclude "./sys/*" -xf -
/newWorldOrder/busybox rm -f $stage3
echo "Installing stage 3"
/newWorldOrder/busybox rm -rf /lib* /usr /var /bin /sbin /opt /mnt /media /root /home /run /tmp
/newWorldOrder/busybox cp -fRap lib* /
/newWorldOrder/busybox cp -fRap bin boot home media mnt opt root run sbin tmp usr var /
/newWorldOrder/busybox cp -fRap etc/* /etc/
# Cleaning
cd /
/newWorldOrder/busybox rm -rf /newWorldOrder /build.sh /linuxrc
# Say hello
echo "Bootstrapped ${stage3path} into /:"
ls --color -lah
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