Usb micro sd card reader not working
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MBR does not support partition UUIDs, but Linux supports PARTUUID for MBR partitions. UUID is a 128-bit number used to identify information in computer systems, in particular it is used to identify partitions on GPT & Linux filesystem. NOTE PARTUUID and UUID are different entities. NOTE you need to reboot after running the script. It can be invoked with sudo set-diskid -n The following script set-diskid will set PARTUUID on a booted system in all the correct places. (SD Card Copier has an option to do this.) You should give SD Card copies a unique PARTUUID which needs to be changed in several places. Umount $SD2 $ROOT_MOUNT # mount root partition containing OS files
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Umount $SD1 $BOOT_MOUNT # mount partition containing boot files The following unmounts SD Cards #!/bin/bash
#Usb micro sd card reader not working free
Free up space for the next big project with the Platinum USB 3.2 Gen 1 SD, microSD, CF 3 Slot Memory Card Reader. The included USB-C to USB adapter lets you connect to devices with USB ports. Mount $SD2 $ROOT_MOUNT # mount root partition containing OS files Plus, multi-LUN technology reads and writes multiple cards at the same time, making your work go even faster. Mount $SD1 $BOOT_MOUNT # mount partition containing boot files I need to manually mount the Card, and can post the script I use to do this. I have experienced only one problem which proved to be due to a faulty Card. (The USB3 ports on the Pi4 have some limitations with USB2 devices, although I would not expect this to affect a SD Card reader, but have had occasional problems and usually use one of the USB2 ports.) I regularly read SD Cards on my Pi4, so this is possible.