SD Card
The Quectel Pi H1 single-board computer has a built-in push-type SD card slot that complies with the SD 3.0 standard. It can be used as a system boot disk or for expanded storage.
Hardware Connection
Insert the SD card into the SD card slot of the Quectel Pi H1 single-board computer.
Basic Functionality
System Recognition
After inserting the SD card, you can use the following command to confirm whether the system recognizes the device:
lsblk
Output：
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sda 8:0 0 116.1G 0 disk
|-sda1 8:1 0 512M 0 part /efi
|-sda2 8:2 0 30M 0 part /var/persist
`-sda3 8:3 0 115.6G 0 part /
sdb 8:16 0 8M 0 disk
|-sdb1 8:17 0 3.5M 0 part
|-sdb2 8:18 0 512K 0 part
`-sdb3 8:19 0 3.5M 0 part
sdc 8:32 0 8M 0 disk
|-sdc1 8:33 0 3.5M 0 part
|-sdc2 8:34 0 512K 0 part
`-sdc3 8:35 0 3.5M 0 part
sdd 8:48 0 32M 0 disk
|-sdd1 8:49 0 104K 0 part
|-sdd2 8:50 0 128K 0 part
|-sdd3 8:51 0 1M 0 part
|-sdd4 8:52 0 1M 0 part
`-sdd5 8:53 0 1M 0 part
sde 8:64 0 3G 0 disk
|-sde1 8:65 0 512K 0 part
|-sde2 8:66 0 64M 0 part
|-sde3 8:67 0 256K 0 part
|-sde4 8:68 0 2M 0 part
|-sde5 8:69 0 5M 0 part
|-sde6 8:70 0 4M 0 part
|-sde7 8:71 0 8M 0 part
|-sde8 8:72 0 4M 0 part
|-sde9 8:73 0 32M 0 part
|-sde10 8:74 0 128K 0 part
|-sde11 8:75 0 80K 0 part
|-sde12 8:76 0 2M 0 part
|-sde13 8:77 0 2M 0 part
|-sde14 8:78 0 128K 0 part
|-sde15 8:79 0 32K 0 part
|-sde16 259:0 0 1M 0 part
|-sde17 259:1 0 256K 0 part
|-sde18 259:2 0 512K 0 part
|-sde19 259:3 0 256K 0 part
|-sde20 259:4 0 64M 0 part
|-sde21 259:5 0 2M 0 part
|-sde22 259:6 0 5M 0 part
|-sde23 259:7 0 4M 0 part
|-sde24 259:8 0 8M 0 part
|-sde25 259:9 0 4M 0 part
|-sde26 259:10 0 32M 0 part
|-sde27 259:11 0 128K 0 part
|-sde28 259:12 0 80K 0 part
|-sde29 259:13 0 2M 0 part
|-sde30 259:14 0 2M 0 part
|-sde31 259:15 0 128K 0 part
|-sde32 259:16 0 32K 0 part
|-sde33 259:17 0 1M 0 part
|-sde34 259:18 0 256K 0 part
|-sde35 259:19 0 4K 0 part
|-sde36 259:20 0 4K 0 part
|-sde37 259:21 0 4K 0 part
|-sde38 259:22 0 16M 0 part
|-sde39 259:23 0 30M 0 part
|-sde40 259:24 0 1M 0 part
|-sde41 259:25 0 32.6M 0 part
|-sde42 259:26 0 4K 0 part
|-sde43 259:27 0 4K 0 part
|-sde44 259:28 0 1M 0 part
|-sde45 259:29 0 8M 0 part
|-sde46 259:30 0 40M 0 part
|-sde47 259:31 0 512M 0 part
|-sde48 259:32 0 28K 0 part
|-sde49 259:33 0 512K 0 part
|-sde50 259:34 0 1M 0 part
`-sde51 259:35 0 32.6M 0 part
sdf 8:80 0 32M 0 disk
|-sdf1 8:81 0 3M 0 part
|-sdf2 8:82 0 3M 0 part
|-sdf3 8:83 0 3M 0 part
`-sdf4 8:84 0 128K 0 part
mmcblk1 179:0 0 29.5G 0 disk
`-mmcblk1p1 179:1 0 29.5G 0 part /media/sdcard
zram0 253:0 0 3.8G 0 disk [SWAP]
Mounting and Unmounting
mmcblk1 179:0 0 29.5G 0 disk
`-mmcblk1p1 179:1 0 29.5G 0 part /media/sdcard
This shows that the SD card is automatically mounted at /media/sdcard.
Check the mount result:
ls /media/sdcard
Mount to another directory:
sudo mkdir -p /mnt/sdcard
sudo mount /dev/mmcblk1p1 /mnt/sdcard
Check the mount result:
ls /mnt/sdcard
After use, unmount:
sudo umount /mnt/sdcard
Tip: Unmounting before removing the SD card can prevent data corruption.
File Operations and Permissions
When a regular user accesses the SD card, permission issues may occur. You can change the owner of the mount directory using the following commands:
sudo chown <username> /mnt/sdcard
sudo chmod 755 /mnt/sdcard
Replace <username> with the currently logged-in username. After this, you can read and write files normally in the /mnt/sdcard directory.