我们的库存中有一些旧的瞻博网络 ex4200，它在控制台中显示以下警告：

--- JUNOS 12.3R3.4 built 2013-06-14 00:08:02 UTC

***********************************************************************
** **
** WARNING: THIS DEVICE HAS BOOTED FROM THE BACKUP JUNOS IMAGE **
** **
** It is possible that the primary copy of JUNOS failed to boot up **
** properly, and so this device has booted from the backup copy. **
** **
** Please re-install JUNOS to recover the primary copy in case **
** it has been corrupted and if auto-snapshot feature is not **
** enabled. **
** **
***********************************************************************

也许我们的旧技术团队设置为从备份启动，那么使用它是否安全？因为我们无法接触到老员工。

我们还尝试了https://kb.juniper.net/InfoCenter/index?page=content&id=KB23180并将快照从备份复制到主要但重新启动后它再次从备份启动。当瞻博网络想要启动时没有错误。

谢谢，