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#!/bin/ash
kexec=$(which kexec 2>/dev/null)
if [ -z "$kexec" ]; then
echo "Failed to find kexec binary in PATH. Exiting."
exit 1
fi
# download_retry <url> <path>
download_retry() {
[ $# -ne 2 ] && return 1
for TIMEOUT in 1 1 2 3 END; do
[ "x$TIMEOUT" = "xEND" ] && break
if wget -T 2 -O "$2" "$1"; then
return 0
break
fi
sleep $TIMEOUT
done
return 1
}
kexec_load() {
. /opt/openslx/config
local DIR="$(mktemp -d)"
for FILE in kernel initramfs-stage31; do
if ! download_retry "http://${SLX_KCL_SERVERS}/${SLX_BASE_PATH}/${FILE}" "${DIR}/${FILE}" ; then
echo "Failed to download ${FILE}."
exit 1
fi
done
if download_retry "http://${SLX_KCL_SERVERS}/tftp/bwlp.cpio" "${DIR}/bwlp.cpio"; then
cat "${DIR}/initramfs-stage31" "${DIR}/bwlp.cpio" > "${DIR}/initramfs-tmp"
mv -f -- "${DIR}/initramfs-tmp" "${DIR}/initramfs-stage31"
fi
if ! kexec -l "${DIR}/kernel" --initrd "${DIR}/initramfs-stage31" --reuse-cmdline; then
echo "Failed to load kernel/initrd from ${DIR}"
exit 1
fi
}
kexec_load
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