Fix the boot issue of SystemRescue 11.02+ (#2958) (#3058)

IMG/cpio/ventoy/init_chain

@@ -73,7 +73,12 @@ ventoy_unpack_initramfs() {
     for vtx in '1F8B zcat' '1F9E zcat' '425A bzcat' '5D00 lzcat' 'FD37 xzcat' '894C lzopcat' '0221 lz4cat' '28B5 zstdcat' '3037 cat' '4C5A lunzip -c'; do
         if [ "${vtx:0:4}" = "${vtmagic:0:4}" ]; then
             echo "vtx=$vtx" >> $VTLOG  
-            if [ $vtskip -eq 0 ]; then            
+            if [ $vtskip -ne 0 ]; then
+                dd if=$vtfile skip=$vtskip iflag=skip_bytes status=none > ${vtfile}.skip
+                rm -f $vtfile
+                mv ${vtfile}.skip $vtfile
+            fi
+
             if [ "${vtx:5}" = "xzcat" ]; then
                 rm -f $VTOY_PATH/xzlog
                 ${vtx:5} $vtfile 2> $VTOY_PATH/xzlog | (cpio -idmu 2>>$VTLOG; cat > $vttmp)
@@ -90,9 +95,6 @@ ventoy_unpack_initramfs() {
             else
                 ${vtx:5} $vtfile | (cpio -idmu 2>>$VTLOG; cat > $vttmp)
             fi            
-            else
-                dd if=$vtfile skip=$vtskip iflag=skip_bytes status=none | ${vtx:5} | (cpio -idmu 2>>$VTLOG; cat > $vttmp)
-            fi
             break
         fi
     done