I have a Samsung YP-U2JQB/XAA (YP-U2 series) with a UMS firmware (as opposed to 
the MTP firmware).  When I plug it in to the machine, it is recognized and 
appears as "Samsung YP-U2 Music Player" in "Computer" (nautilus), but if I 
click on it, I get an I/O error.  If I try to mount it manually with mount -F 
pcfs /dev/dsk/c1t0d0s2:c /a I also get "mount: I/O error" (I also tried without 
:c, and also with s0).

I am running snv_72 on SPARC (Blade 150: 650 Mhz UltraSPARC-IIi, 768 MB RAM, 40 
GB HD) and logged into JDS as root.

The filesystem on the device is FAT32.
agni:~# prtvtoc /dev/rdsk/c1t0d0s2
* /dev/rdsk/c1t0d0s2 partition map
*
* Dimensions:
*     512 bytes/sector
*      63 sectors/track
*     255 tracks/cylinder
*   16065 sectors/cylinder
*     251 cylinders
*     251 accessible cylinders
*
* Flags:
*   1: unmountable
*  10: read-only
*
*                          First     Sector    Last
* Partition  Tag  Flags    Sector     Count    Sector  Mount Directory
       0      0    00          0   4032315   4032314
       2      0    00          0   4032315   4032314
agni:~#

I was able to mount a friend's flash drive successfully (not a Samsung UMS MP3 
player):
agni:~# prtvtoc /dev/rdsk/c1t0d0s2
* /dev/rdsk/c1t0d0s2 partition map
*
* Dimensions:
*     512 bytes/sector
*      32 sectors/track
*      64 tracks/cylinder
*    2048 sectors/cylinder
*     967 cylinders
*     967 accessible cylinders
*
* Flags:
*   1: unmountable
*  10: read-only
*
*                          First     Sector    Last
* Partition  Tag  Flags    Sector     Count    Sector  Mount Directory
       0      0    00          0   1980416   1980415
       2      0    00          0   1980416   1980415
agni:~#
He said his was probably FAT16.

Does anyone know this device does not mount?  Does Solaris/SPARC not support 
FAT32?  It can mount successfully on Windows and Linux.
 
 
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