~$ dmesg | grep sdf
[ 116.395097] sd 5:0:0:1: [sdf] 920576 512-byte logical blocks: (471 MB/449 MiB)
[ 116.395960] sd 5:0:0:1: [sdf] Write Protect is off
[ 116.395967] sd 5:0:0:1: [sdf] Mode Sense: 43 00 00 00
[ 116.395973] sd 5:0:0:1: [sdf] Assuming drive cache: write through
[ 116.399460] sd 5:0:0:1: [sdf] Assuming drive cache: write through
[ 116.399482] sdf: sdf1
[ 116.407151] sd 5:0:0:1: [sdf] Assuming drive cache: write through
[ 116.407163] sd 5:0:0:1: [sdf] Attached SCSI disk

la partizione incriminata è di 30 Mb, riesco a vedere il contenuto montando /dev/sr1