Duplicate mountpoint in fstab

indianahorst · 2021-04-15 13:35:07

Hello,

I want to mount an external disk on the same mountpoint, which is sometimes connected via USB and sometimes via network (cifs).

I already tried

//<ip address>/data	/media/data	cifs	noauto,<options> 	0 0

LABEL=data_seagate	/media/data	ext4      noauto,<options> 	0 0

but when the disk is connected via USB and mounted, after some time systemd freaks out and changes the mount to readonly.

In the meantime I use another mountpoint and then "mount --bind /media/data_usb/ /media/data/" as a workaround, but is there a more elegant way to handle this problem?

d_fajardo · 2021-04-15 15:21:28

A long shot but perhaps instead of fstab, you can create a udev rule to run a script to mount to your mount point depending on what udev sees as connected.

EDIT: I'm not sure if udev will see a network connection.

Last edited by d_fajardo (2021-04-15 15:27:13)

seth · 2021-04-15 15:45:27

What exactly is "<options>"? x-systemd.automount?

indianahorst · 2021-04-15 16:48:29

seth wrote:

What exactly is "<options>"? x-systemd.automount?

No, I don't have x-systemd.automount in the options list.

Here is the full list of options:

//<ip address>/data	/media/data	cifs	noauto,nofail,users,cache=loose,actimeo=60,credentials=/path/to/.smbcredentials,_netdev  0 0

LABEL=data_seagate	/media/data	ext4      noauto,user,noatime,commit=300,nofail,comment=x-gvfs-show,x-gvfs-name=DataUSB,x-systemd.device-timeout=5 	0 0

seth · 2021-04-15 20:45:07

What if you
a) disable usb autosuspend? https://wiki.archlinux.org/index.php/Po … utosuspend (you can start w/ "usbcore.autosuspend=-1" but nb. that userspace powermanagement tools will likely alter that at runtime)
b) increase the device-timeout? (like: "a lot")

Arch Linux

#1 2021-04-15 13:35:07

Duplicate mountpoint in fstab

#2 2021-04-15 15:21:28

Re: Duplicate mountpoint in fstab

#3 2021-04-15 15:45:27

Re: Duplicate mountpoint in fstab

#4 2021-04-15 16:48:29

Re: Duplicate mountpoint in fstab

#5 2021-04-15 20:45:07

Re: Duplicate mountpoint in fstab

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