为什么 snap rstore 因“预期非负整数参数”而失败？

Question

我试图重新安装一个 snap 包，我想要我的设置。我snap save在删除快照之前做了一个。现在我试图用snap restore它来恢复保存的快照，但它失败了：

root@josh-workstation:/# snap restore lxd 1
error: invalid argument for snapshot set id: expected a non-negative integer argument (see 'snap help saved')

但是，我按照snap help restoreand的指示进行操作snap help saved，所以...有什么关系？

root@josh-workstation:/# snap help restore
Usage:
  snap restore [restore-OPTIONS] <snap> <id>...

The restore command replaces the current user, system and
configuration data of included snaps, with the corresponding data from
the specified snapshot.

Answer 1

snap help 向后，实际命令首先获取 ID

它应该是：

root@josh-workstation:/# snap help restore
Usage:
  snap restore [restore-OPTIONS] <id> [<snap>]...

The restore command replaces the current user, system and
configuration data of included snaps, with the corresponding data from
the specified snapshot.

跑步snap restore 1 lxd有效。

root@josh-workstation:/# snap --version
snap    2.44.3
snapd   2.44.3
series  16
ubuntu  18.04
kernel  5.3.0-51-generic