I'm trying to save files to a perfectly ordinary brand-new usb-key. Please consider this documentation of things I've tried. I'm not stymied or pulling my hair out yet. Yet
One of my next steps is to consult the handbook. (I always try google first, in the off-chance it'll land me right on it) -the error I get is attached.
selected output from dmesg:

Code:
root@ozzie:~ # fdisk /dev/da0
******* Working on device /dev/da0 *******
parameters extracted from in-core disklabel are:
cylinders=3773 heads=255 sectors/track=63 (16065 blks/cyl)
Figures below won't work with BIOS for partitions not in cyl 1
parameters to be used for BIOS calculations are:
cylinders=3773 heads=255 sectors/track=63 (16065 blks/cyl)
Media sector size is 512
Warning: BIOS sector numbering starts with sector 1
Information from DOS bootblock is:
The data for partition 1 is:
sysid 12 (0x0c),(DOS or Windows 95 with 32 bit FAT (LBA))
start 128, size 60628864 (29603 Meg), flag 0
beg: cyl 0/ head 1/ sector 1;
end: cyl 628/ head 64/ sector 1
The data for partition 2 is:
<UNUSED>
The data for partition 3 is:
<UNUSED>
The data for partition 4 is:
<UNUSED>
Code:
root@ozzie:~ # ls /dev/da*
/dev/da0 /dev/da0s1
Code:
root@ozzie:~ # mount_msdosfs /dev/da0s1 /media/usb
mount_msdosfs: /media/usb: No such file or directory
Code:
root@ozzie:~ # mount /dev/da0s1 /media/usb
mount: /media/usb: No such file or directory
Code:
root@ozzie:~ # mount /dev/da0 /media/usb
mount: /media/usb: No such file or directory
root@ozzie:~ # mount_msdosfs /dev/da0 /media/usb
mount_msdosfs: /media/usb: No such file or directory
Code:
root@ozzie:~ # mount /dev/da0
mount: /dev/da0: unknown special file or file system
Code:
root@ozzie:~ # mount /dev/da0s1
mount: /dev/da0s1: unknown special file or file system
Code:
ugen0.3: <vendor 0x1a40 USB 2.0 Hub> at usbus0
uhub3 on uhub0
uhub3: <vendor 0x1a40 USB 2.0 Hub, class 9/0, rev 2.00/1.11, addr 19> on usbus0
uhub3: 4 ports with 4 removable, self powered
ugen0.4: <vendor 0x6557 USB DISK 2.0> at usbus0
umass0 on uhub3
umass0: <vendor 0x6557 USB DISK 2.0, class 0/0, rev 2.00/1.00, addr 26> on usbus0
umass0: SCSI over Bulk-Only; quirks = 0xc100
umass0:2:0: Attached to scbus2
da0 at umass-sim0 bus 0 scbus2 target 0 lun 0
da0: < USB DISK 2.0 PMAP> Removable Direct Access SPC-4 SCSI device
da0: Serial Number 90009B838C2AC448
da0: 40.000MB/s transfers
da0: 29604MB (60628992 512 byte sectors)
da0: quirks=0x3<NO_SYNC_CACHE,NO_6_BYTE>
Code:
root@ozzie:~ # usbconfig
...
ugen0.4: <vendor 0x6557 USB DISK 2.0> at usbus0, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON (200mA)
...