Je n'est pas mandrake pour verifier. Mais je pense qu'il a deja ces drivers de chargés.
Essaye de faire la commande dmesg aprés avoir mis ta clef usb pour le verifier.
Voila ce que j'ai sur ma debian
usb 1-2: new full speed USB device using uhci_hcd and address 2
Initializing USB Mass Storage driver...
scsi0 : SCSI emulation for USB Mass Storage devices
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
usb-storage: device found at 2
usb-storage: waiting for device to settle before scanning
Vendor: USB Model: FLASHDISK Rev: 2010
Type: Direct-Access ANSI SCSI revision: 00
SCSI device sda: 506880 512-byte hdwr sectors (260 M
sda: Write Protect is off
sda: Mode Sense: 43 00 00 00
sda: assuming drive cache: write through
SCSI device sda: 506880 512-byte hdwr sectors (260 M
sda: Write Protect is off
sda: Mode Sense: 43 00 00 00
sda: assuming drive cache: write through
sda: sda1
Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0
usb-storage: device scan complete
Tu devrais aussi avoir quelque chose du même style
$ uptime
19:28:06 up 12 days, 20:46, 2 users, load average: 213.96, 212.37, 208.44