최근 내 Android 기기가 내 SD 카드를 감지하지 못해서 문제가 무엇인지 알아보기 위해 SD 카드를 내 PC(Kubuntu 실행)에 연결했습니다. 결과는 다음과 같습니다.
dmesg카드 판독기와 연결된 대용량 저장 장치가 올바르게 감지되고 SCSI 디스크가 /dev/sda, /dev/sdb및 에 /dev/sdc표시됩니다 /dev/sdd. 왜 4개 모두에 나타나는지 모르겠습니다. stat크기를 0으로 표시합니다. mount이 모든 작업이 실패하여 미디어를 찾을 수 없음을 나타냅니다.
lsusb올바른 테스트 장비:
Bus 001 Device 016: ID 0dda:2026 Integrated Circuit Solution, Inc. USB2.0 Card Reader
lswh -class disk다음과 같은 4개의 디스크가 감지됩니다 dmesg.
*-disk:0
description: SCSI Disk
product: IC1210 CF
vendor: Generic
physical id: 0.0.0
bus info: scsi@1:0.0.0
logical name: /dev/sda
version: 1.9C
capabilities: removable
configuration: logicalsectorsize=512 sectorsize=512
*-medium
physical id: 0
logical name: /dev/sda
*-disk:1
description: SCSI Disk
product: IC1210 MS
vendor: Generic
physical id: 0.0.1
bus info: scsi@1:0.0.1
logical name: /dev/sdb
version: 1.9C
capabilities: removable
configuration: logicalsectorsize=512 sectorsize=512
*-medium
physical id: 0
logical name: /dev/sdb
*-disk:2
description: SCSI Disk
product: IC1210 MMC/SD
vendor: Generic
physical id: 0.0.2
bus info: scsi@1:0.0.2
logical name: /dev/sdc
version: 1.9C
capabilities: removable
configuration: logicalsectorsize=512 sectorsize=512
*-medium
physical id: 0
logical name: /dev/sdc
*-disk:3
description: SCSI Disk
product: IC1210 SM
vendor: Generic
physical id: 0.0.3
bus info: scsi@1:0.0.3
logical name: /dev/sdd
version: 1.9C
capabilities: removable
configuration: logicalsectorsize=512 sectorsize=512
*-medium
physical id: 0
logical name: /dev/sdd
SD 카드 또는 파일과 관련된 출력도 lsblk제공 하지 않습니다 .fdisk/dev/sd*
전체 dmesg출력은 다음과 같습니다.
[Sep22 01:38] usb 1-2: new high-speed USB device number 16 using xhci_hcd
[ +0.151453] usb 1-2: New USB device found, idVendor=0dda, idProduct=2026, bcdDevice= 1.9c
[ +0.000006] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ +0.000003] usb 1-2: Product: USB2.0 Card Reader
[ +0.000003] usb 1-2: Manufacturer: Generic
[ +0.000002] usb 1-2: SerialNumber: 0000001
[ +0.002622] usb-storage 1-2:1.0: USB Mass Storage device detected
[ +0.000490] scsi host1: usb-storage 1-2:1.0
[ +1.002628] scsi 1:0:0:0: Direct-Access Generic IC1210 CF 1.9C PQ: 0 ANSI: 0 CCS
[ +1.877520] scsi 1:0:0:1: Direct-Access Generic IC1210 MS 1.9C PQ: 0 ANSI: 0 CCS
[ +1.877628] scsi 1:0:0:2: Direct-Access Generic IC1210 MMC/SD 1.9C PQ: 0 ANSI: 0 CCS
[ +1.877198] scsi 1:0:0:3: Direct-Access Generic IC1210 SM 1.9C PQ: 0 ANSI: 0 CCS
[ +0.000831] sd 1:0:0:0: Attached scsi generic sg0 type 0
[ +0.000566] sd 1:0:0:1: Attached scsi generic sg1 type 0
[ +0.000448] sd 1:0:0:2: Attached scsi generic sg2 type 0
[ +0.001047] sd 1:0:0:3: Attached scsi generic sg3 type 0
[ +3.793444] sd 1:0:0:0: [sda] Attached SCSI removable disk
[ +0.010521] sd 1:0:0:2: [sdc] Attached SCSI removable disk
[ +0.002761] sd 1:0:0:1: [sdb] Attached SCSI removable disk
[ +0.002199] sd 1:0:0:3: [sdd] Attached SCSI removable disk