# Step 1 : parse kernel debug parameter #
# #
####################################################################
-mkdir /proc; mount -t proc proc /proc
+[ -d /proc ] || mkdir /proc; mount -t proc proc /proc
vtcmdline=$(cat /proc/cmdline)
vtkerver=$(cat /proc/version)
umount /proc; rm -rf /proc
vtfile=$1; vtskip=$2; vtmagic=$3; vttmp=$4
echo "=====ventoy_unpack_initramfs: #$*#" >> $VTLOG
+ #special process
+ #if [ "${vtmagic:0:4}" = '5678' ]; then
+ # echo -en '\x1F\x8B' | dd status=none of=$vtfile bs=1 count=2 conv=notrunc
+ # vtmagic='1F8B'
+ #fi
+
for vtx in '1F8B zcat' '1F9E zcat' '425A bzcat' '5D00 lzcat' 'FD37 xzcat' '894C lzopcat' '0221 lz4cat' '28B5 zstdcat' '3037 cat'; do
if [ "${vtx:0:4}" = "${vtmagic:0:4}" ]; then
echo "vtx=$vtx" >> $VTLOG
- if [ $vtskip -eq 0 ]; then
- ${vtx:5} $vtfile | (cpio -idm 2>>$VTLOG; cat > $vttmp)
+ if [ $vtskip -eq 0 ]; then
+ if [ "${vtx:5}" = "xzcat" ]; then
+ rm -f $VTOY_PATH/xzlog
+ ${vtx:5} $vtfile 2> $VTOY_PATH/xzlog | (cpio -idmu 2>>$VTLOG; cat > $vttmp)
+
+ if grep -q 'corrupted data' $VTOY_PATH/xzlog; then
+ echo 'xzcat failed, now try xzminidec...' >> $VTLOG
+ cat $vtfile | xzminidec | (cpio -idmu 2>>$VTLOG; cat > $vttmp)
+ fi
+
+ else
+ ${vtx:5} $vtfile | (cpio -idmu 2>>$VTLOG; cat > $vttmp)
+ fi
else
- dd if=$vtfile skip=$vtskip iflag=skip_bytes status=none | ${vtx:5} | (cpio -idm 2>>$VTLOG; cat > $vttmp)
+ dd if=$vtfile skip=$vtskip iflag=skip_bytes status=none | ${vtx:5} | (cpio -idmu 2>>$VTLOG; cat > $vttmp)
fi
break
fi