;
 ifelse(is_mounted("/system"),unmount("/system"));
 package_extract _dir("install","/tmp/install");
 set_metadata _recursive("/tmp/install","uid",0,"gid",0,"dmode",0755,"fmode",0644);
 set_metadata _recursive("/tmp/install/bin","uid",0,"gid",0,"dmode",0755,"fmode",0755);
 mount("ext4","EMMC","/dev/block/platform/msm_sdcc.1/by-name/system","/system","");
 run_program("/tmp/install/bin/backuptool.sh","backup");
 unmount("/system");
 if is_mounted("/data") then
 run_program("/tmp/install/bin/otasigcheck.sh")!="31744"||abort("Can't install this package on top of incompatible data. Please try another package or run a factory reset");
 else
 mount("ext4","EMMC","/dev/block/platform/msm_sdcc.1/by-name/userdata","/data","");
 run_program("/tmp/install/bin/otasigcheck.sh")!="31744"||abort("Can't install this package on top of incompatible data. Please try another package or run a factory reset");
 unmount("/data");
 endif;
 show_progress(0.750000,0);
 block_image _update("/dev/block/platform/msm_sdcc.1/by-name/system",package_extract _file("system.transfer.list"),"system.new.dat","system.patch.dat");
 show_progress(0.020000,10);
 mount("ext4","EMMC","/dev/block/platform/msm_sdcc.1/by-name/system","/system","");
 run_program("/tmp/install/bin/backuptool.sh","restore");
 unmount("/system");
 show_progress(0.050000,5);
 package_extract _file("boot.img","/dev/block/platform/msm_sdcc.1/by-name/boot");
 show_progress(0.200000,10);