From 75a654a0bffc059747cf3bdfa22c9f778c0c62df Mon Sep 17 00:00:00 2001
From: Guocheng Zheng <121431418@qq.com>
Date: Wed, 15 Apr 2020 10:21:53 +0800
Subject: [PATCH] =?UTF-8?q?=E5=90=8C=E6=AD=A5=E8=BF=9C=E7=A8=8B=E5=8D=87?=
 =?UTF-8?q?=E7=BA=A7=E8=84=9A=E6=9C=AC=E7=9A=84=E6=9B=B4=E6=94=B9=E5=88=B0?=
 =?UTF-8?q?=E7=A6=BB=E7=BA=BF=E5=8D=87=E7=BA=A7=E8=84=9A=E6=9C=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 scripts/autoupdate-usb.sh | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/scripts/autoupdate-usb.sh b/scripts/autoupdate-usb.sh
index bb2e0ae..99242e0 100755
--- a/scripts/autoupdate-usb.sh
+++ b/scripts/autoupdate-usb.sh
@@ -23,9 +23,10 @@ if [ -f /mnt/mmcblk0p2/artifact/FriendlyWrt*.img.gz ]; then
 	pv /mnt/mmcblk0p2/artifact/FriendlyWrt*.img.gz | gunzip -dc > FriendlyWrt.img
 	echo -e '\e[92m准备解压镜像文件\e[0m'
 fi
+lodev=$(losetup -f)
 mkdir /mnt/img
-losetup -o 100663296 /dev/loop0 /mnt/mmcblk0p2/FriendlyWrt.img
-mount /dev/loop0 /mnt/img
+losetup -o 100663296 $lodev /mnt/mmcblk0p2/FriendlyWrt.img
+mount $lodev /mnt/img
 echo -e '\e[92m解压已完成，准备编辑镜像文件，写入备份信息\e[0m'
 cd /mnt/img
 sysupgrade -b /mnt/img/back.tar.gz
@@ -34,7 +35,7 @@ echo -e '\e[92m备份文件已经写入，移除挂载\e[0m'
 rm back.tar.gz
 cd /tmp
 umount /mnt/img
-losetup -d /dev/loop0
+losetup -d $lodev
 echo -e '\e[92m准备重新打包\e[0m'
 zstdmt /mnt/mmcblk0p2/FriendlyWrt.img -o /tmp/FriendlyWrtupdate.img.zst
 echo -e '\e[92m打包完毕，准备刷机\e[0m'