升级脚本增加自动扩容

static/mv100_upgrade.sh

@@ -1,7 +1,5 @@
 #!/bin/bash
-
 dlfile="mv100-99.flash.gz"
-
 echo "
 +----------------------------------------------------------------------
 | 海纳思系统hi3798mv100升级系统专用脚本温馨提示：
@@ -19,47 +17,86 @@ read -p "继续执行？[y/n]: " result
 temp_file=$(mktemp)
 curl -sSL https://hi.ecoo.top/mirror-utils.sh > $temp_file
 if [ ! -f /etc/public-download.sh ] || [ "$(cat $temp_file|md5sum|awk '{print $1}')" != "$(cat /etc/public-download.sh|md5sum|awk '{print $1}')" ]; then
-	cp $temp_file /etc/public-download.sh
+    cp $temp_file /etc/public-download.sh
 fi
 rm -f $temp_file
 source /etc/public-download.sh
 
-if [ $(whoami) != "root" ];then
-	_exit 1 "请使用root权限切换用户！"
+if [ $(whoami) != "root" ]; then
+    _exit 1 "请使用root权限切换用户！"
 fi
 
 model=$(cpuid)
 platform=hi3798mv100
-
-if [ "$(echo ${model})" != "$platform" ];then
-	_exit 1 "本升级程序仅支持${platform}机型！"
+if [ "$(echo ${model})" != "$platform" ]; then
+    _exit 1 "本升级程序仅支持${platform}机型！"
 fi
 
 promode=$(uname -r|cut -c 13-)
-if [ $promode = 16010066 ];then
-	_exit 1 "专业版用户请使用vipupgrade命令进行升级！"
+if [ $promode = 16010066 ]; then
+    _exit 1 "专业版用户请使用vipupgrade命令进行升级！"
 fi
 
-space_left=$(df -hT|grep /dev/root|awk '{print $4}')
-if [ "$(expr $(echo ${space_left%%G}) \> 1)" != 1 ];then
-	_exit 1 "请确保剩余空间大于1G！"
+# ---------------------------------------------------------------
+# 检测 /tmp 剩余空间，不足 400M 时尝试扩容或清理
+# ---------------------------------------------------------------
+printStr yellow "检测 /tmp 可用空间..."
+TMP_AVAIL=$(df -T | grep '/tmp' | awk '{print int($5)}')   # 单位：KB
+
+if [ "${TMP_AVAIL}" -lt 409600 ]; then   # 409600 KB = 400M
+    printStr yellow "/tmp 剩余空间不足 400M（当前 ${TMP_AVAIL} KB），尝试 remount 扩容..."
+
+    mount -o remount,size=500M /tmp 2>/dev/null
+    if [ $? -eq 0 ]; then
+        printStr green "/tmp 已扩容至 500M"
+    else
+        printStr yellow "remount 失败，尝试清理 /tmp 旧文件..."
+        # 删除超过 1 天的普通文件
+        find /tmp -type f -mtime +1 -delete 2>/dev/null
+        # 删除同名残留包（防止上次下载中断）
+        rm -f /tmp/${dlfile}
+
+        # 清理后再次尝试扩容
+        mount -o remount,size=400M /tmp 2>/dev/null
+        if [ $? -eq 0 ]; then
+            printStr green "清理后 remount 成功，/tmp 已扩容至 400M"
+        else
+            # 最后兜底：检查清理后实际剩余空间是否已满足要求
+            TMP_AVAIL=$(df -T | grep '/tmp' | awk '{print int($5)}')
+            if [ "${TMP_AVAIL}" -lt 409600 ]; then
+                _exit 1 "/tmp 空间不足且无法扩容（当前 ${TMP_AVAIL} KB），请手动清理后重试！"
+            else
+                printStr green "清理后 /tmp 剩余空间已满足要求（${TMP_AVAIL} KB）"
+            fi
+        fi
+    fi
+else
+    printStr green "/tmp 剩余空间充足（${TMP_AVAIL} KB），继续..."
 fi
+# ---------------------------------------------------------------
 
 printStr yellow "检测并选定下载节点..."
 get_mirror_url
 
 printStr yellow "下载刷机包..."
-dl_get update/system/${dlfile} /${dlfile}
+dl_get update/system/${dlfile} /tmp/${dlfile}
+
 printStr yellow "校验刷机包..."
 echo "${NODE_URL}/update/system/${dlfile}.md5sum"
-[ "$(get_md5 -c ${NODE_URL}/update/system/${dlfile}.md5sum ${dlfile})" != "$(get_md5 -l /${dlfile})" ] && _exit 1 "文件校验失败，请重试"
+[ "$(get_md5 -c ${NODE_URL}/update/system/${dlfile}.md5sum ${dlfile})" != "$(get_md5 -l /tmp/${dlfile})" ] && \
+    _exit 1 "文件校验失败，请重试"
 printStr green "下载完成！"
 
 printStr yellow "刷机中，请勿断电..."
-gunzip -c /${dlfile} | dd of=/dev/mmcblk0 bs=1024 seek=1024 status=progress conv=sync
+gunzip -c /tmp/${dlfile} | dd of=/dev/mmcblk0 bs=1024 seek=1024 status=progress conv=sync
 
-[[ $? == 0 ]] && printStr yellow "
+if [[ $? == 0 ]]; then
+    rm -f /tmp/${dlfile}   # 刷机成功后清理临时文件
+    printStr yellow "
 ==============================================================
 恭喜刷机已完成，系统重启中，待初始化5-8分钟结束后即可登录。
-==============================================================" && reboot || \
-	_exit 1 "刷机失败"
+=============================================================="
+    reboot
+else
+    _exit 1 "刷机失败"
+fi