====== Diagnostique USB ======


== Cas USB 4Go 19 avril 2021 ==

Monte 
>[ 9919.804375] usb-storage 6-3:1.0: USB Mass Storage device detected
>[ 9919.804661] scsi host5: usb-storage 6-3:1.0
>[ 9920.834701] scsi 5:0:0:0: Direct-Access     Generic  Flash Disk 2.0   6.90 PQ: 0 ANSI: 2
>[ 9920.835273] sd 5:0:0:0: Attached scsi generic sg1 type 0
>[ 9920.840351] sd 5:0:0:0: [sdb] Attached SCSI removable disk

Mais inaccessible
>fdisk: impossible d'ouvrir /dev/sdb: Aucun médium trouvé

NB : quand la clé n'est pas branché l'erreur est autre
>fdisk: impossible d'ouvrir /dev/sdb: Aucun fichier ou dossier de ce type

---

Après ressoudure des contacts :
>[ 6631.652137] sd 6:0:0:0: [sdf] Assuming drive cache: write through
>[ 6657.876808] print_req_error: critical target error, dev sdf, sector 240
>[ 6657.876817] Buffer I/O error on dev sdf, logical block 30, lost async page write
>[ 6657.876862] Buffer I/O error on dev sdf, logical block 39, lost async page write
>[ 6657.880056] print_req_error: critical target error, dev sdf, sector 480
>[ 6657.883169] print_req_error: critical target error, dev sdf, sector 720
>[ 6657.884238] print_req_error: critical target error, dev sdf, sector 960

Etc.

Poubelle !