How do I do 'mount --bind' in /etc/fstab?

Question

I'm trying to add mount --bind /proc/ /chroot/mysql/proc to /etc/fstab. How can I do this?

See the third paragraph of the section "The third field" in man fstab: "An entry swap denotes a file or partition to be used for swapping, cf. swapon(8). An entry ignore causes the line to be ignored. This is useful to show disk partitions which are currently unused. An entry none is useful for bind or move mounts." See also the previous section in man fstab, "The second field" that also mentions the use of "none". — Jonathan Ben-Avraham, Aug 7, 2016 at 5:30
In case anyone's wondering, it looks like you can no longer do the same thing on Mac OS X: apple.stackexchange.com/questions/197029/… — Sridhar Sarnobat, Aug 28, 2019 at 20:28

Addison · Accepted Answer · 2020-01-16 23:23:29Z

240

The mount command accepts --bind or -o bind.

In the /etc/fstab file, you can use the following line:

/source /destination none defaults,bind 0 0

Addison

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answered Jul 16, 2014 at 23:18

Matheus

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Are you sure that the defaults,bind is necessary? I'm almost sure that bind would be enough.
– Valerio Bozzolan
Dec 31, 2020 at 13:26
just in case of situations on boot, i like to add nofail,x-systemd.device-timeout=2 to the options....
– Reishin
Dec 13, 2021 at 2:43
@Reishin So, it would be like this? : /source /destination none defaults,bind,nofail,x-systemd.device-timeout=2 0 0 ?
– Raul Chiarella
Apr 13 at 21:25

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Zoredache · Accepted Answer · 2014-07-16 23:16:29Z

113

If I had a volume mounted at /media/3tb-vol1/Private/, and I wanted to bind it to /srv/Private I have a /etc/fstab like this.

/media/3tb-vol1/Private/ /srv/Private        none    bind

answered Jul 16, 2014 at 23:16

Zoredache

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