最近、私のAndroidデバイスが私のSDカードを検出できなかったので、問題が何であるかを調べるために、SDカードを私のPC（Kubuntuを起動）に接続しました。結果は次のとおりです。
dmesg/dev/sdaカードリーダーに接続されている大容量記憶装置が正しく検出され、SCSIディスク/dev/sdbがに/dev/sdc表示されます/dev/sdd。なぜ4つすべてに現れるのかわかりません。statサイズを0として表示します。mountこれはすべて失敗し、メディアが見つからないことを示します。
lsusb正しいテスト機器：
Bus 001 Device 016: ID 0dda:2026 Integrated Circuit Solution, Inc. USB2.0 Card Reader
lswh -class disk次の4つのディスクが検出されます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カードやファイルに関連する出力もlsblk提供しません。fdisk/dev/sd*
全体dmesgの出力は次のとおりです。
[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