Can You Mount FAT32 iSCSI Target in Solaris 10 (sparc)?

I get "mount: I/O error" when trying to mount an existing FAT32 iSCSI target. I also tried formatting the iSCSI target with fdisk and got
fdisk: "Error in ioctl DKIOCSMBOOT"

Details --

According to the format command, the whole disk is allocated to slice 6 and /dev/rdsk shows this as:
lrwxrwxrwx 1 root root 110 Oct 6 08:22 c9t6d0s6 -> ../../devices/iscsi/disk@0000iqn.1986-03.com.sun%3A02%3A7baf5e59-8829-44bf-d575
-e8931cf3bb16.watch0001,0:g,raw

When I tried fdisk, on slice 2 or 6 I get:
# fdisk /dev/rdsk/c9t6d0s6
Error in ioctl DKIOCGMBOOT: Invalid argument
No fdisk table exists. The default partition for the disk is:

a 100% "SOLARIS System" partition

Type "y" to accept the default partition, otherwise type "n" to edit the
partition table.

(going through the motions of this ends in the error again when you exit)

When I try any other slice or c9t6d0s2:c
I get:
fdisk: Cannot open device /dev/rdsk/c9t6d0s2:c

Is it possible to mount any kind of pcfs iSCSI target on a Solaris (sparc) initiator? :confused:

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Thank you!