ReadyNAS Duo won't update with latest firmware

readynas:~# cat /etc/raidiator_version
RAIDiator!!version=4.01c1-p6,time=1247518584
readynas:~# cat /var/log/raidiator_version
RAIDiator!!version=4.1.6,time=1247518584
readynas:~# ls -la /
total 121
drwxr-xr-x 22 root root 4096 Oct 22 02:28 .
drwxr-xr-x 22 root root 4096 Oct 22 02:28 ..
lrwxrwxrwx 1 root root 9 Nov 1 2008 backup -> /c/backup
lrwxrwxrwx 1 root root 14 Nov 2 2009 backup-adam -> /c/backup-adam
lrwxrwxrwx 1 root root 14 Nov 2 2009 backup-omar -> /c/backup-omar
drwxr-xr-x 2 root root 4096 Oct 22 02:27 bin
drwxrwxrwx 11 root root 16384 Oct 12 07:47 c
drwxr-xr-x 9 root root 24576 Oct 22 02:27 dev
drwxr-xr-x 51 admin admin 4096 Oct 22 02:28 etc
drwxr-sr-x 6 admin admin 4096 Jul 15 2010 frontview
drwxrwsr-x 3 root root 4096 Sep 19 2003 home
drwxr-xr-x 2 root root 1024 Oct 22 02:27 initrd
-rw-r--r-- 1 root root 0 Oct 22 02:27 .init_start
lrwxrwxrwx 1 root root 8 Jan 5 2009 islam -> /c/islam
drwxr-xr-x 7 root root 4096 Jul 15 2010 lib
drwx------ 2 root root 16384 Jul 15 2002 lost+found
drwxr-xr-x 2 root root 4096 Feb 8 2002 mnt
drwxr-xr-x 3 admin admin 4096 Jul 13 2009 opt
lrwxrwxrwx 1 root root 8 Jan 4 2009 photo -> /c/photo
dr-xr-xr-x 57 root root 0 Dec 1 2003 proc
drwxrwxrwt 2 root root 0 Oct 22 03:03 ramfs
drwx------ 4 root root 4096 Jul 15 2010 root
drwxr-xr-x 2 root root 4096 Jul 15 2010 sbin
-rw-r--r-- 1 root root 2 Oct 22 02:27 .sync_start
drwxr-xr-x 11 root root 0 Dec 1 2003 sys
drwxrwxrwt 4 root root 4096 Oct 22 02:27 tmp
lrwxrwxrwx 1 root root 11 Jan 6 2009 transfer -> /c/transfer
-rw-r--r-- 1 root root 26 Oct 21 07:21 .update_fail
drwxrwxrwt 2 root root 40 Oct 22 02:27 USB
drwxr-xr-x 11 root root 4096 May 9 2008 usr
drwxr-xr-x 17 root root 4096 May 15 2006 var

If I run RAIDar, I can see 4.1.6 as the version number. And yes, I still see those messages about the flash device being unknown.