No logro montar memoria USB.

Hola chicos tengo una memoria USB Verbatim STORE_N_GO de 1Gb, tiene el logotipo de compatibilidad con Linux, y es así ya que la he usado bajo varios equipos con Linux sin problemas y tb en windows, tiene una sola partición FAT32, pero en el equipo de casa con Debian Sarge r1 no puedo montarla.

Lo he intentado de las siguientes maneras, mirad lo que ocurre:

rafadeb:~# dmesg | tail
usb 4-2: USB disconnect, address 3
usb 4-2: new high speed USB device using address 4
scsi2 : SCSI emulation for USB Mass Storage devices
Vendor: VBTM Model: Store 'n' Go Rev: 1.02
Type: Direct-Access ANSI SCSI revision: 02
SCSI device sda: 2013184 512-byte hdwr sectors (1031 MB)
sda: assuming Write Enabled
sda: assuming drive cache: write through
/dev/scsi/host2/bus0/target0/lun0: [CUMANA/ADFS] p1<5>Attached scsi removable disk sda at scsi2, channel 0, id 0, lun 0
USB Mass Storage device found at 4
rafadeb:~#

rafadeb:~# mount /dev/sda /media/usb
mount: you must specify the filesystem type
rafadeb:~# mount -t vfat /dev/sda /media/usb
mount: wrong fs type, bad option, bad superblock on /dev/sda,
missing codepage or other error
In some cases useful info is found in syslog - try
dmesg | tail or so

rafadeb:~# mount -t vfat /dev/sda /media/usb0
mount: wrong fs type, bad option, bad superblock on /dev/sda,
missing codepage or other error
In some cases useful info is found in syslog - try
dmesg | tail or so

rafadeb:~# mount -t vfat /dev/sda1 /media/usb0
mount: wrong fs type, bad option, bad superblock on /dev/sda1,
missing codepage or other error
In some cases useful info is found in syslog - try
dmesg | tail or so

rafadeb:~#

En el syslog encuentro la siguiente información:

Feb 21 21:39:15 rafadeb xfs: ignoring font path element /usr/local/share/fonts (unreadable)
Feb 21 21:39:15 rafadeb xfs: ignoring font path element /usr/share/fonts (unreadable)
Feb 21 21:39:15 rafadeb xfs: ignoring font path element /usr/X11R6/lib/X11/fonts (unreadable)
Feb 21 21:39:16 rafadeb rpc.statd[4510]: Version 1.0.6 Starting
Feb 21 21:39:16 rafadeb rpc.statd[4510]: statd running as root. chown /var/lib/nfs/sm to choose different user
Feb 21 21:39:16 rafadeb /usr/sbin/cron[4538]: (CRON) INFO (pidfile fd = 3)
Feb 21 21:39:16 rafadeb /usr/sbin/cron[4539]: (CRON) STARTUP (fork ok)
Feb 21 21:39:16 rafadeb /usr/sbin/cron[4539]: (CRON) INFO (Running @reboot jobs)
Feb 21 21:39:16 rafadeb Xprt_64: No matching visual for __GLcontextMode with visual class = 0 (32775), nplanes = 8
Feb 21 21:39:16 rafadeb Xprt_64: Could not init font path element /usr/share/fonts/truetype, removing from list!
Feb 21 21:39:18 rafadeb udev[4570]: creating device node '/dev/vcs2'
Feb 21 21:39:18 rafadeb udev[4578]: creating device node '/dev/vcsa2'
Feb 21 21:39:18 rafadeb udev[4601]: creating device node '/dev/vcs4'
Feb 21 21:39:18 rafadeb udev[4610]: creating device node '/dev/vcsa4'
Feb 21 21:39:18 rafadeb udev[4593]: creating device node '/dev/vcs3'
Feb 21 21:39:18 rafadeb udev[4630]: creating device node '/dev/vcs6'
Feb 21 21:39:18 rafadeb udev[4638]: creating device node '/dev/vcsa6'
Feb 21 21:39:18 rafadeb udev[4648]: creating device node '/dev/vcs5'
Feb 21 21:39:18 rafadeb udev[4656]: creating device node '/dev/vcsa5'
Feb 21 21:39:18 rafadeb udev[4621]: creating device node '/dev/vcsa3'
Feb 21 21:39:18 rafadeb udev[4671]: creating device node '/dev/vcs7'
Feb 21 21:39:18 rafadeb udev[4680]: creating device node '/dev/vcsa7'
Feb 21 21:39:18 rafadeb udev[4697]: removing device node '/dev/vcs7'
Feb 21 21:39:18 rafadeb udev[4698]: removing device node '/dev/vcsa7'
Feb 21 21:39:18 rafadeb udev[4709]: creating device node '/dev/vcs7'
Feb 21 21:39:18 rafadeb udev[4717]: creating device node '/dev/vcsa7'
Feb 21 21:41:16 rafadeb kernel: usb 4-2: USB disconnect, address 3
Feb 21 21:41:16 rafadeb udev[5145]: removing device node '/dev/sda1'
Feb 21 21:41:16 rafadeb udev[5206]: removing device node '/dev/sda'
Feb 21 21:41:20 rafadeb kernel: usb 4-2: new high speed USB device using address 4
Feb 21 21:41:20 rafadeb kernel: scsi2 : SCSI emulation for USB Mass Storage devices
Feb 21 21:41:20 rafadeb kernel: Vendor: VBTM Model: Store 'n' Go Rev: 1.02
Feb 21 21:41:20 rafadeb kernel: Type: Direct-Access ANSI SCSI revision: 02
Feb 21 21:41:21 rafadeb kernel: SCSI device sda: 2013184 512-byte hdwr sectors (1031 MB)
Feb 21 21:41:21 rafadeb kernel: sda: assuming Write Enabled
Feb 21 21:41:21 rafadeb kernel: sda: assuming drive cache: write through
Feb 21 21:41:21 rafadeb kernel: /dev/scsi/host2/bus0/target0/lun0: [CUMANA/ADFS] p1<5>Attached scsi removable disk sda at scsi2, channel 0, id 0, lun 0
Feb 21 21:41:21 rafadeb kernel: USB Mass Storage device found at 4
Feb 21 21:41:21 rafadeb udev[5280]: configured rule in '/etc/udev/rules.d/z_hal-plugdev.rules[2]' applied, 'sda' becomes '%k'
Feb 21 21:41:21 rafadeb udev[5280]: creating device node '/dev/sda'
Feb 21 21:41:21 rafadeb scsi.agent[5314]: sd_mod: loaded sucessfully (for disk)
Feb 21 21:41:21 rafadeb udev[5330]: configured rule in '/etc/udev/rules.d/z_hal-plugdev.rules[2]' applied, 'sda1' becomes '%k'
Feb 21 21:41:21 rafadeb udev[5330]: creating device node '/dev/sda1'
Feb 21 21:41:21 rafadeb usb.agent[5299]: usb-storage: already loaded
Feb 21 21:41:21 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378384
Feb 21 21:41:21 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378385
Feb 21 21:41:21 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378386
Feb 21 21:41:21 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378387
Feb 21 21:41:21 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378388
Feb 21 21:41:21 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378389
Feb 21 21:41:21 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378390
Feb 21 21:41:21 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378391
Feb 21 21:41:21 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378392
Feb 21 21:41:21 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378393
Feb 21 21:41:21 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378394
Feb 21 21:41:21 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378395
Feb 21 21:41:21 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378396
Feb 21 21:41:21 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378397
Feb 21 21:41:21 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378398
Feb 21 21:41:21 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378399
Feb 21 21:41:21 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378384
Feb 21 21:41:51 rafadeb kernel: FAT: invalid media value (0xb9)
Feb 21 21:41:51 rafadeb kernel: VFS: Can't find a valid FAT filesystem on dev sda.
Feb 21 21:43:50 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378384
Feb 21 21:43:50 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378385
Feb 21 21:43:50 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378386
Feb 21 21:43:50 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378387
Feb 21 21:43:50 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378388
Feb 21 21:43:50 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378389
Feb 21 21:43:50 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378390
Feb 21 21:43:50 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378391
Feb 21 21:43:50 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378392
Feb 21 21:43:50 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378393
Feb 21 21:43:50 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378394
Feb 21 21:43:50 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378395
Feb 21 21:43:50 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378396
Feb 21 21:43:50 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378397
Feb 21 21:43:50 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378398
Feb 21 21:43:50 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378399
Feb 21 21:43:50 rafadeb kernel: Buffer I/O error on device sda1, logical block 508378384
Feb 21 21:43:56 rafadeb kernel: FAT: invalid media value (0xb9)
Feb 21 21:43:56 rafadeb kernel: VFS: Can't find a valid FAT filesystem on dev sda1.

Como veis las ultimas lineas hablan del problema, insisto en que la memoria funciona correctamente en otros equipos con Windows y Linux, y en los ordenadores de mi facultad que tambien tienen Debian Sarge, tengo el Kernel 2.6.8.

Yo no soy muy listo pero creo que podrias probar haber si tienes cargados los modulos para vfat en el kernel
Prueba como root #modprobe y si no te dice nada eske esta cargado.En caso contrario te lo cargara y puedes probar de nuevo con # mount -t vfat /dev/sda1 /media/usb

has probado con el sistema de archivos msdos?
vi algunos pendrives que no soportan fat32, por lo que solo lo puedes montar con msdos.

suerte.

con modprobe prueba a cargar el modulo codepage 850

En vez de "-t vfat" prueba "-t auto", a ver si rula.
Si no, carga módulos de otros sistemas de ficheros. Si instalas modconf lo puedes usar para ver qué módulos tienes y cargarlos.

talue!