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这是一个有趣的悲剧.今天早上,当我错误地执行以下命令时,我在生产服务器上进行了一些维护：

sudo rm -rf –no-preserve-root / mnt / hetznerbackup /

我没有发现之前的最后一个空间/几秒钟之后,当警告充斥着我的命令行时,我意识到我刚刚点击了自毁按钮.这里有一些烧在我眼中的东西：

rm: cannot remove `/mnt/hetznerbackup': Is a directory
rm: cannot remove `/sys/fs/ecryptfs/version': Operation not permitted
rm: cannot remove `/sys/fs/ext4/md2/inode_readahead_blks': Operation not permitted
rm: cannot remove `/sys/fs/ext4/md2/mb_max_to_scan': Operation not permitted
rm: cannot remove `/sys/fs/ext4/md2/delayed_allocation_blocks': Operation not permitted
rm: cannot remove `/sys/fs/ext4/md2/max_writeback_mb_bump': Operation not permitted
rm: cannot remove `/sys/fs/ext4/md2/mb_stream_req': Operation not permitted
rm: cannot remove `/sys/fs/ext4/md2/mb_min_to_scan': Operation not permitted
rm: cannot remove `/sys/fs/ext4/md2/mb_stats': Operation not permitted
rm: cannot remove `/sys/fs/ext4/md2/trigger_fs_error': Operation not permitted
rm: cannot remove `/sys/fs/ext4/md2/session_write_kbytes': Operation not permitted
rm: cannot remove `/sys/fs/ext4/md2/lifetime_write_kbytes': Operation not permitted
# and so on..

当我发现生产服务仍在运行时,我停止了任务并放心了.遗憾的是,服务器不再通过SSH接受任何用户的公钥或密码.

你怎么会从这里前进？我将在铁丝网的海洋中游泳以获得SSH访问权限.

服务器正在运行Ubuntu-12.04并在Hetzner上托管.