Dietpi: USB hardrive permission error

[crustovsky]

When setting up a USB hard drive on Raspberry Pi 3, I'm getting "DietPi was unable to create your user data directory: ERROR: Unable to create test file in target directory /mnt/usb_1. Check permissions. DietPi-Software will now exit." error when running DietPi v141. Any workaround or planned fixes for this ?

[Fourdee]

@crustovsky

Thanks for report.

Can you please send us a bug report, it will contain some system information I can use to assist in this issue:
http://dietpi.com/phpbb/viewtopic.php?f=8&t=499#p2184

[crustovsky]

@Fourdee I just posted bug report as instructed, reference code 197b1674-0716-4b78-a9bb-5c7137a801e0-0

[Fourdee]

@crustovsky
Thanks 👍

Please paste results of following commands:

ls -lha /mnt
ls -lha /mnt/usb_*

And which drive was used when moving user data (eg: /mnt/usb_1)?
/mnt/usb_1

[crustovsky]

@Fourdee

Had to do this on /mnt/usb_2 as usb_1 is currently used by flash drive (spinning drive on usb_2 is still causing the error mentioned earlier)

root@crustovsky-DietPi3:~# ls -lha /mnt
total 40K
drwxr-xr-x 10 root root 4.0K Jan 3 22:36 .
drwxr-xr-x 20 root root 4.0K Jan 3 20:42 ..
lrwxrwxrwx 1 root root 10 Jan 3 22:36 dietpi_userdata -> /mnt/usb_1
drwxr-xr-x 2 root root 4.0K Dec 31 15:44 ftp_client
drwxr-xr-x 2 root root 4.0K Dec 31 15:36 nfs_client
drwxr-xr-x 2 root root 4.0K Dec 31 15:44 samba
drwxrwxr-x 7 root root 4.0K Jan 4 19:28 usb_1
drwxr-xr-x 3 root root 4.0K Jan 5 22:07 usb_2
drwxr-xr-x 2 root root 4.0K Jan 3 20:41 usb_3
drwxr-xr-x 2 root root 4.0K Jan 3 20:41 usb_4
drwxr-xr-x 2 root root 4.0K Jan 3 20:41 usb_5
root@crustovsky-DietPi3:~# ls -lha /mnt/usb_*
/mnt/usb_1:
total 101M
drwxrwxr-x 7 root root 4.0K Jan 4 19:28 .
drwxr-xr-x 10 root root 4.0K Jan 3 22:36 ..
drwxrwxr-x 2 root root 4.0K Jan 3 20:42 downloads
drwxrwxr-x 2 root root 16K Jan 3 22:35 lost+found
drwxrwxr-x 145 root root 4.0K Jan 4 08:39 Music
drwxrwxr-x 2 root root 4.0K Jan 3 20:42 Pictures
-rwxrwxr-x 1 root root 100M Jan 3 22:36 .swapfile
drwxrwxr-x 3 root root 4.0K Jan 3 23:42 Video

/mnt/usb_2:
total 24K
drwxr-xr-x 3 root root 4.0K Jan 5 22:07 .
drwxr-xr-x 10 root root 4.0K Jan 3 22:36 ..
drwx------ 2 root root 16K Jan 5 22:07 lost+found

/mnt/usb_3:
total 8.0K
drwxr-xr-x 2 root root 4.0K Jan 3 20:41 .
drwxr-xr-x 10 root root 4.0K Jan 3 22:36 ..

/mnt/usb_4:
total 8.0K
drwxr-xr-x 2 root root 4.0K Jan 3 20:41 .
drwxr-xr-x 10 root root 4.0K Jan 3 22:36 ..

/mnt/usb_5:
total 8.0K
drwxr-xr-x 2 root root 4.0K Jan 3 20:41 .
drwxr-xr-x 10 root root 4.0K Jan 3 22:36 ..
root@crustovsky-DietPi3:~#

[crustovsky]

I'm going to move over to newly purchased odroid xu4 to see if I'm getting anything similar there

[Fourdee]

@crustovsky

Thanks for results.

Did you use dietpi-drive_manager, or dietpi-software to move the user data?

/mnt/usb_2:
total 24K
drwxr-xr-x 3 root root 4.0K Jan 5 22:07 .
drwxr-xr-x 10 root root 4.0K Jan 3 22:36 ..
drwx------ 2 root root 16K Jan 5 22:07 lost+found

Permissions are fine. Its not the cause.

Lets try manually writing a file to usb_2:

echo 1 > /mnt/usb_2/testfile

If that works, try moving userdata again with:

/DietPi/dietpi/func/dietpi-set_userdata $(readlink -f /mnt/dietpi_userdata) /mnt/usb_2

[crustovsky]

@Fourdee it failed both at startup setup time and when i used drive manager from launcher. What is strange is that i wasn't able to setup that drive (probably incompatible enclosure) with XU4, i will check with other one once it arrives.

I had to move back to Pi3 to test this (hence swapping back _2 to _1) and I got an error again from setup wizard and commands you mentioned output

root@crustovsky-DietPi3:~# echo 1 > /mnt/usb_1/testfile
-bash: /mnt/usb_1/testfile: Read-only file system
root@crustovsky-DietPi3:~#

root@crustovsky-DietPi3:~# /DietPi/dietpi/func/dietpi-set_userdata $(readlink -f /mnt/dietpi_userdata) /mnt/usb_1

DietPi
─────────────────────────────────────────────────────
Mode: Updating user data location
Please wait...

[Info] - From : /mnt/dietpi_userdata
[Info] - To : /mnt/usb_1
[Info] Please wait...
/DietPi/dietpi/func/dietpi-set_userdata: line 245: /mnt/usb_1/.testfile_dietpi_userdata_basedirectory: Read-only file system
[Failed] ERROR: Unable to create test file in target directory /mnt/usb_1. Check permissions.

[Failed] An issue has occured

I have Pi3 dietpi setup on a spare card for more tests.

[Fourdee]

@crustovsky

-bash: /mnt/usb_1/testfile: Read-only file system
/DietPi/dietpi/func/dietpi-set_userdata: line 245: /mnt/usb_1/.testfile_dietpi_userdata_basedirectory: Read-only file system

Looks like the cause. Drive is being mounted as read only. Possible due to a corruption on drive.

Lets try dismounting and remounting drive to check for any errors on screen:

umount /mnt/usb_1
mount -a

Also, if you can backup any data on the drive, it might be worth trying to format the drive with GPT partition table (if not done already?). GPT is default, required for 2TB+ drives.:

[crustovsky]

@Fourdee

Unmounting and mounting back produces no output

root@crustovsky-DietPi3:~# umount /mnt/usb_1
root@crustovsky-DietPi3:~# mount -a
root@crustovsky-DietPi3:~#

And drive is already formatted to GTP EXT4 type

I will try to reformat it on my Windows machine and scan it there for any errors

[crustovsky]

@Fourdee so i got a new enclosure and after attaching that drive (full reformat was done under windows first though) to my XU4 I'm now moving my user data to this without any issues, if i find another hardrrive i will try again with that old enclosure and Pi3. Strange. Also believe it or not but drive could not be detected and usb3 pins on a board required clean as instructed here

I will update this once I get other drive for Pi3.

[Fourdee]

@crustovsky

Marking as closed. Please re-open if required.