I have re-imaged it back to stock Zyxel software (4.70) now. I was trying to install using what was in your dropbox on Sept 1. Install USB was 8 GB SanDisk, formatted FAT32, contents:
-rwxr-xr-x 1 root root 29593600 May 24 19:36 boot-nsa320.tar
-rwxr-xr-x 1 root root 1190 Aug 6 03:47 creating salted checksums.txt
-rwxr-xr-x 1 root root 721582080 Jul 12 06:52 debian-omv-stoneburner1.tar
-rwxr-xr-x 1 root root 31980 Feb 18 2010 md5sum
-rwxr-xr-x 1 root root 64 Sep 5 2012 nsa310_check_file_C0
-rwxr-xr-x 1 root root 64 Mar 16 2012 nsa310_check_file_C0.libzy.so
-rwxr-xr-x 1 root root 3993 Aug 5 19:06 README.txt
-rwxr-xr-x 1 root root 36 Jun 14 2012 salted_md5sum
-rwxr-xr-x 1 root root 36 Jun 14 2012 salted_md5sum_3x0
-rwxr-xr-x 1 root root 23 Sep 5 2012 usb_key_func.sh
-rwxr-xr-x 1 root root 14085 Aug 11 05:17 usb_key_func.sh.2
No error log being generated.
Boot files in in boot partition on 32GB SanDisk USB drive. I have it mounted on my RPi now:
Disk /dev/sda: 31.1 GB, 31104958464 bytes
64 heads, 32 sectors/track, 29664 cylinders, total 60751872 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sda1 2048 206847 102400 83 Linux
/dev/sda2 206848 60751871 30272512 83 Linux
Boot partition is ext2, rootfs is ext4 (again currently mounted on the RPi)
/dev/sda1 on /mnt/boot type ext2 (rw,relatime)
/dev/sda2 on /mnt/rootfs type ext4 (rw,relatime,data=ordered)
Listing of the boot partition:
-rw-r--r-- 1 root root 129088 Oct 22 2014 config-3.17.0-kirkwood-tld-1
drwxr-xr-x 2 root root 4096 May 23 06:36 dts
-rw-r--r-- 1 root root 7597358 May 22 19:25 initrd.img-3.17.0-kirkwood-tld-1
drwx------ 2 root root 12288 Sep 3 18:36 lost+found
-rw-r--r-- 1 root root 0 May 25 02:36 nsa320
-rw-r--r-- 1 root root 1991026 Oct 22 2014 System.map-3.17.0-kirkwood-tld-1
-rw-r--r-- 1 root root 2835406 May 24 07:16 uImage
-rw-r--r-- 1 root root 7597422 May 24 07:17 uInitrd
-rwxr-xr-x 1 root root 2822168 Oct 22 2014 vmlinuz-3.17.0-kirkwood-tld-1
-rwxr-xr-x 1 root root 2822168 Oct 22 2014 zImage-3.17.0-kirkwood-tld-1
-rwxr-xr-x 1 root root 2835342 May 24 07:14 zImage.fdt
Note that was after I manually untarred the boot-nsa320.tar into the boot partition. I have tried to nuke the 32GB key, but for some reason the install script isn't finding it during the install (bad USB stick or bad USB port on the back of the NSA320?). Probably at the point I need to go back to the beginning and do a full capture of the install script output.