为什么 /proc/mounts 显示一行 7 列(类型覆盖)?

为什么 /proc/mounts 显示一行 7 列(类型覆盖)?

我正在尝试排除故障https://github.com/minio/minio/issues/12047,这似乎是因为我的 Docker 容器内部的输出中的一行cat /proc/mounts似乎非常特别:它有 7 列,而不是 6 列。

该行如下所示:

rootfs overlay / overlay rw,relatime,lowerdir=/var/lib/docker/overlay2/l/PPDEP2NMRVDPT5KD5MWUXRVCC7:/var/lib/docker/overlay2/l/74ZMIOZ4PCTUODVBBM5HPKA2VD:/var/lib/docker/overlay2/l/OI4LL4AG2CMZFQ2NOBA4WAGO2D:/var/lib/docker/overlay2/l/XNVOJIJBXWDYAMHKQVV36C75V7:/var/lib/docker/overlay2/l/OV7JOV3TW5MJUIXZ3D5INLWP2S:/var/lib/docker/overlay2/l/HESJLWTHRG6WS3ATRQZ53LHTHR:/var/lib/docker/overlay2/l/APVFQLQRINYD73WECQN5743O64:/var/lib/docker/overlay2/l/4XZCFLNC4XES6EMPFMVIDVCDZG:/var/lib/docker/overlay2/l/QXPY3J5KFA225KY2UQ2ZMSFQL6:/var/lib/docker/overlay2/l/J2FZIZQJRJILGLDETPYG3LUO36:/var/lib/docker/overlay2/l/6SQYUEBL4UYK7LOSPVWHY2VSTO:/var/lib/docker/overlay2/l/HEM6EMXICNYBE7NFCL66QLRN7F:/var/lib/docker/overlay2/l/FKCJWEQK6MTE7ZGGAQKRIIAQ2S:/var/lib/docker/overlay2/l/2CQEUDLJPSF5QYSHUP3FZZP2NG:/var/lib/docker/overlay2/l/RPHBJZTVMCPKW5YO4DLXDDEMG6:/var/lib/docker/overlay2/l/7CK3YF2F3UPMWJEDMJSPF4BUVM:/var/lib/docker/overlay2/l/6VNPYNFDWXULE3DHTTOKVK4TEV:/var/lib/docker/overlay2/l/FHGM5ZCKKZXU3ILXNLACVEEVJV:/var/lib/docker/overlay2/l/QTUW3G342VYWBSHCJKOUFBW67D:/var/lib/docker/overlay2/l/NUWVWRCIWNNIPY6HFOFLS7PUMK:/var/lib/docker/overlay2/l/7GGMDSIT66JJAT7WXHJKYZ5YZT:/var/lib/docker/overlay2/l/XWKJI2UXVR27CWTCN5EH7BB6UH:/var/lib/docker/overlay2/l/BMY5J7APK7EU25PJFBSRH2Q34L,upperdir=/var/lib/docker/overlay2/7a60705c89c815e9c7df7a76ebc7aa10a7c9c8f82d6cba59f193542753bd1570/diff,workdir=/var/lib/docker/overlay2/7a60705c89c815e9c7df7a76ebc7aa10a7c9c8f82d6cba59f193542753bd1570/work,index=off,xino=off 0 0

这个格式正常吗?根据 的说法,overlay后面的内容rootfs看起来不应该在那里man 5 fstab。为什么多了一个字?

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