一、关掉群晖虚拟机,把下面提供的PE.ISO文件上传到光驱(如果是物理机的话,找一个U盘制作一个PE)
![群晖 | 黑群晖升级6.2.4废了,如何降级恢复保数据 – Vedio Talk - VLOG、科技、生活、乐分享](https://vt.wooomoo.com/wp-content/uploads/2021/03/%E6%88%AA%E5%B1%8F2021-03-30-%E4%B8%8B%E5%8D%887.37.37-1024x805.png)
![群晖 | 黑群晖升级6.2.4废了,如何降级恢复保数据 – Vedio Talk - VLOG、科技、生活、乐分享](https://vt.wooomoo.com/wp-content/uploads/2021/03/%E6%88%AA%E5%B1%8F2021-03-30-%E4%B8%8B%E5%8D%887.38.24-1024x811.png)
启动选择光驱 进入PE系统
![群晖 | 黑群晖升级6.2.4废了,如何降级恢复保数据 – Vedio Talk - VLOG、科技、生活、乐分享](https://vt.wooomoo.com/wp-content/uploads/2021/03/%E6%88%AA%E5%B1%8F2021-03-30-%E4%B8%8B%E5%8D%887.39.46-1024x775.png)
二、进入到PE的DG磁盘工具进行删除文件
1.删除.syno下面的patch文件夹
![群晖 | 黑群晖升级6.2.4废了,如何降级恢复保数据 – Vedio Talk - VLOG、科技、生活、乐分享](https://vt.wooomoo.com/wp-content/uploads/2021/03/%E6%88%AA%E5%B1%8F2021-03-30-%E4%B8%8B%E5%8D%887.47.06-1024x652.png)
![群晖 | 黑群晖升级6.2.4废了,如何降级恢复保数据 – Vedio Talk - VLOG、科技、生活、乐分享](https://vt.wooomoo.com/wp-content/uploads/2021/03/%E6%88%AA%E5%B1%8F2021-03-30-%E4%B8%8B%E5%8D%887.50.28-1024x778.png)
2.删除etc和etc.defaults目录下的VERSION文件
![群晖 | 黑群晖升级6.2.4废了,如何降级恢复保数据 – Vedio Talk - VLOG、科技、生活、乐分享](https://vt.wooomoo.com/wp-content/uploads/2021/03/%E6%88%AA%E5%B1%8F2021-03-30-%E4%B8%8B%E5%8D%887.56.35-1024x905.png)
![群晖 | 黑群晖升级6.2.4废了,如何降级恢复保数据 – Vedio Talk - VLOG、科技、生活、乐分享](https://vt.wooomoo.com/wp-content/uploads/2021/03/%E6%88%AA%E5%B1%8F2021-03-30-%E4%B8%8B%E5%8D%887.55.15-1003x1024.png)
注意:如果有多块硬盘,RAID的情况下,需要分配进入每个硬盘删除.syno下面的patch文件夹和删除etc和etc.defaults目录下的VERSION文件
![群晖 | 黑群晖升级6.2.4废了,如何降级恢复保数据 – Vedio Talk - VLOG、科技、生活、乐分享](https://vt.wooomoo.com/wp-content/uploads/2021/03/%E6%88%AA%E5%B1%8F2021-03-31-%E4%B8%8A%E5%8D%8810.31.42-1024x904.png)
三、删除原始引导,从新上传引导(物理机格式化U盘 从新制作引导)
![群晖 | 黑群晖升级6.2.4废了,如何降级恢复保数据 – Vedio Talk - VLOG、科技、生活、乐分享](https://vt.wooomoo.com/wp-content/uploads/2021/03/%E6%88%AA%E5%B1%8F2021-03-30-%E4%B8%8B%E5%8D%887.58.06-1024x662.png)
![群晖 | 黑群晖升级6.2.4废了,如何降级恢复保数据 – Vedio Talk - VLOG、科技、生活、乐分享](https://vt.wooomoo.com/wp-content/uploads/2021/03/%E6%88%AA%E5%B1%8F2021-03-30-%E4%B8%8B%E5%8D%887.58.56-1024x654.png)
![群晖 | 黑群晖升级6.2.4废了,如何降级恢复保数据 – Vedio Talk - VLOG、科技、生活、乐分享](https://vt.wooomoo.com/wp-content/uploads/2021/03/%E6%88%AA%E5%B1%8F2021-03-30-%E4%B8%8B%E5%8D%887.59.43-1024x547.png)
注:新上传的引导硬盘位置改为SATA
![群晖 | 黑群晖升级6.2.4废了,如何降级恢复保数据 – Vedio Talk - VLOG、科技、生活、乐分享](https://vt.wooomoo.com/wp-content/uploads/2021/03/%E6%88%AA%E5%B1%8F2021-03-30-%E4%B8%8B%E5%8D%887.59.53-1024x673.png)
四、用群晖助手搜索迁移系统
![群晖 | 黑群晖升级6.2.4废了,如何降级恢复保数据 – Vedio Talk - VLOG、科技、生活、乐分享](https://vt.wooomoo.com/wp-content/uploads/2021/03/%E6%88%AA%E5%B1%8F2021-03-30-%E4%B8%8B%E5%8D%888.04.53-1024x341.png)
![群晖 | 黑群晖升级6.2.4废了,如何降级恢复保数据 – Vedio Talk - VLOG、科技、生活、乐分享](https://vt.wooomoo.com/wp-content/uploads/2021/03/%E6%88%AA%E5%B1%8F2021-03-30-%E4%B8%8B%E5%8D%888.06.47-1024x779.png)
![群晖 | 黑群晖升级6.2.4废了,如何降级恢复保数据 – Vedio Talk - VLOG、科技、生活、乐分享](https://vt.wooomoo.com/wp-content/uploads/2021/03/%E6%88%AA%E5%B1%8F2021-03-30-%E4%B8%8B%E5%8D%888.06.51-1024x581.png)
![群晖 | 黑群晖升级6.2.4废了,如何降级恢复保数据 – Vedio Talk - VLOG、科技、生活、乐分享](https://vt.wooomoo.com/wp-content/uploads/2021/03/%E6%88%AA%E5%B1%8F2021-03-30-%E4%B8%8B%E5%8D%888.07.10-1024x701.png)
![群晖 | 黑群晖升级6.2.4废了,如何降级恢复保数据 – Vedio Talk - VLOG、科技、生活、乐分享](https://vt.wooomoo.com/wp-content/uploads/2021/03/%E6%88%AA%E5%B1%8F2021-03-30-%E4%B8%8B%E5%8D%888.07.31-1024x653.png)
![群晖 | 黑群晖升级6.2.4废了,如何降级恢复保数据 – Vedio Talk - VLOG、科技、生活、乐分享](https://vt.wooomoo.com/wp-content/uploads/2021/03/%E6%88%AA%E5%B1%8F2021-03-30-%E4%B8%8B%E5%8D%888.08.11-1024x853.png)