As shown, lsusb command shows the existence of the SD card, but not fdisk -l shows SD card, this is how to return a responsibility? Consult ~

CodePudding user response:

SDB is the representative of a device, there is no sdb0 sdb1 partition specification equipment such as no partitions cannot be used properly. Not shown in fdisk -l

CodePudding user response:

Insert a usb card reader, but it didn't card, card reader or card has problem on this phenomenon