automount configuration?

tony013 · April 17, 2021 at 5:45 AM

Hello,

I just got a rock pi4 with sata hat and tried nightly build. I'm so excited as sata works ootb. The drives are already mounted.

If I got it right, partitions are mounted according their label - so if two partitions have the same label, they are mounted to the same directory ...

... and sata drives are mounted at /var/media as well as usb-drives.

I'd like to change (and fix) the location where the sata drives are mounted, but I did not find the one that does the mounting.

/etc/fstab does not exists or is empty ...

Where do I best configure the mount location of the sata drives?

**chewitt** · April 17, 2021 at 9:54 AM Official Post

Drives are mounted via udevil so you would need to clone the udev rule that mounts removable drives to /storage/.config/udev.rules.d and edit it to mount them somewhere else. NB: If you have two drives with the same LABEL the second one to mount will be LABEL-1 so they will not mount to the same name. You can't control probe order (which determines mount order) so it's best to ensure they have unique names.

tony013 · April 17, 2021 at 12:52 PM

Thank you very much for your support!

I found udevil*.rules at /usr/lib/udev/rules.d - may I ask for additional help?

I researched how to differentiate internal and external drives, as both have dev-names like sd*

and I found the key in /dev/disk/by-id:

Code

ata-CT2000BX500SSD1_2010E290A364                            -> ../../sdb
ata-CT2000BX500SSD1_2010E290A364-part1                      -> ../../sdb1
ata-CT2000BX500SSD1_2010E290A484                            -> ../../sdd
ata-CT2000BX500SSD1_2010E290A484-part1                      -> ../../sdd1
ata-CT2000BX500SSD1_2010E290A4DB                            -> ../../sdc
ata-CT2000BX500SSD1_2010E290A4DB-part1                      -> ../../sdc1
ata-CT2000MX500SSD1_2048E4D3888D                            -> ../../sda
ata-CT2000MX500SSD1_2048E4D3888D-part1                      -> ../../sda1
mmc-SD02G_0xa863fc97                                        -> ../../mmcblk1
mmc-SD02G_0xa863fc97-part1                                  -> ../../mmcblk1p1
mmc-SD02G_0xa863fc97-part2                                  -> ../../mmcblk1p2
usb-Intenso_External_USB_3.0_201706142551C-0:0              -> ../../sde
usb-Intenso_External_USB_3.0_201706142551C-0:0-part1        -> ../../sde1
wwn-0x500a0751e290a364                                      -> ../../sdb
wwn-0x500a0751e290a364-part1                                -> ../../sdb1
wwn-0x500a0751e290a484                                      -> ../../sdd
wwn-0x500a0751e290a484-part1                                -> ../../sdd1
wwn-0x500a0751e290a4db                                      -> ../../sdc
wwn-0x500a0751e290a4db-part1                                -> ../../sdc1
wwn-0x500a0751e4d3888d                                      -> ../../sda
wwn-0x500a0751e4d3888d-part1                                -> ../../sda1

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Does /etc/fstab work?

I'd like udevil act on those partitions only, that have their id start with "usb-"

Don't know, whether partitions that start with mmc- need handling of udevil too.

Which might be the same as: udevil should not work on partitions with an id of ata-* or wwn*

Is that possible and how could I do that?