Probably some permissions and/or the settings are set wrong on your Raspberry.
I suspect the external drive or a shared folder on the external drive to have wrong permissions set. Compare that with the your home folder on the Raspberry where you probably have full r/w access.
Please try this as a first step. You may apply special settings/configs later.
Below i assume that your external disk is sdb and contains one ext4 volume sdb1 with the name seagate. The volume/partition itself should not be owned by pi but by root!
First stop netatalk with:
sudo /etc/init.d/netatalk stop
Unmount your external volume after checking the the mounted volumes with
cat /proc/mounts to get the identifier of your external disk:
sudo umount /dev/sdb1
First we have to fix your mount point:
The following permissions should apply (check this with
ls -la on the Raspberry):
drwxr-xr-x 3 root root 4096 Apr 6 13:52 mnt
Check that the folder /mnt contains a folder seagate with
drwxr-xr-x 3 root root 4096 Apr 6 13:52 .
drwxr-xr-x 22 root root 4096 Apr 6 11:21 ..
drwxr-xr-x 8 root root 4096 Apr 6 14:14 seagate
Add the folder if necessary with
sudo mkdir /mnt/seagate and change permissions and ownership accordingly with chown and chmod.
Get the UUID of all volumes with
sudo blkid. You should get a similar output like that one:
/dev/sda5: UUID="7a7dd5de-758e-4488-b78d-dd7f7c61cfbc" TYPE="swap"
/dev/sda1: UUID="9b4285a8-3290-469a-91f3-7517f286856e" TYPE="ext4"
/dev/sdb1: LABEL="seagate" UUID="522e7f4c-ee90-4265-82c1-e46f48f969b5" TYPE="ext4"
sda1 and sda5 are your internal main and swap partition. sdb1 is the first volume on your external disk.
sudo nano /etc/fstab if your fstab file mounts the volume of the external disk at /mnt/seagate. Replace the UUIDs below with those found in your setup.
# /etc/fstab: static file system information.
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda1 during installation
UUID=9b4285a8-3290-469a-91f3-7517f286856e / ext4 errors=remount-ro 0 1
# swap was on /dev/sda5 during installation
UUID=7a7dd5de-758e-4488-b78d-dd7f7c61cfbc none swap sw 0 0
/dev/sr0 /media/cdrom0 udf,iso9660 user,noauto 0 0
UUID=522e7f4c-ee90-4265-82c1-e46f48f969b5" /mnt/seagate/ ext4 errors=remount-ro 0 1
Remount sdb1 with
sudo mount /dev/sdb1 and check the mountpoint with
df. It should look like this:
/dev/sdb1 8256916 170156 7667332 3% /mnt/seagate
Now create a base folder for the user pi:
sudo mkdir /mnt/seagate/pi
Move all your personal folders to pi with:
sudo mv /mnt/seagate/folder sudo mv /mnt/seagate/pi/folder
sudo mv "/mnt/seagate/Film - 1" "/mnt/seagate/pi/Film - 1"
Then apply ownership recursively with
sudo chown -R pi:pi /mnt/seagate/pi
Reapply ownership and permissions of /mnt/seagate/lost+found with
sudo chown -R root:root /mnt/seagate/lost+found
sudo chmod 700 /mnt/seagate/lost+found
Now you have to check netatalk and fix it if necessary:
Locate the following startup options and change them as noted below in /etc/default/netatalk with
sudo nano /etc/default/netatalk:
Go to the end of the file /etc/netatalk/afpd.conf. It should look similar to this:
- -tcp -noddp -uamlist uams_dhx.so,uams_dhx2.so -nosavepassword
Now configure the shared volumes in /etc/netatalk/AppleVolumes.default near the end of the file:
~/ "Home Directory"
/mnt/seagate/pi "pi-seagate" allow:pi
The first is the directory to share, the second is the name visible in the "Connect to Server" -> "Volumes to select" window and later on your desktop and the third is/are the allowed user(s).
Restart netatalk with:
sudo /etc/init.d/netatalk start
Try to connect to the share(s) with your Mac OS X 10.10 client by entering: "afp://ip-address" in 'Go to...' -> 'Connect to Server'.