Jetson TX2挂载SD卡（ext4格式）_sd卡ext4格式-优快云博客

本文链接：https://blog.youkuaiyun.com/weixin_41783910/article/details/108006770

本文详细介绍了在嵌入式设备上进行磁盘管理的步骤，包括卸载磁盘分区、格式化为ext4文件系统、设置自动挂载及手动挂载分区到指定目录的过程。通过实际操作示例，展示了如何在AGX平台上完成这一系列操作。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

1，先卸载：umount /dev/mmcblk2
2，格式化：sudo mkfs.ext4 /dev/mmcblk2
3，设置自动挂载：sudo vi /etc/fstab （注意如果没有插SD卡会进入不了系统，需要root登录）。

1，查看自动挂载情况，不符合预期
root@agx:/# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/mmcblk0p1   28G   21G  5.6G  79% /
none            7.4G     0  7.4G   0% /dev
tmpfs           7.8G   40K  7.8G   1% /dev/shm
tmpfs           7.8G  107M  7.7G   2% /run
tmpfs           5.0M  4.0K  5.0M   1% /run/lock
tmpfs           7.8G     0  7.8G   0% /sys/fs/cgroup
tmpfs           1.6G   24K  1.6G   1% /run/user/120
tmpfs           1.6G  152K  1.6G   1% /run/user/1000
/dev/mmcblk1p1  234G   61M  222G   1% /media/agx/6d1


2，先卸载：umount /dev/mmcblk1p1
root@agx:/# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/mmcblk0p1   28G   21G  5.6G  79% /
none            7.4G     0  7.4G   0% /dev
tmpfs           7.8G   40K  7.8G   1% /dev/shm
tmpfs           7.8G  107M  7.7G   2% /run
tmpfs           5.0M  4.0K  5.0M   1% /run/lock
tmpfs           7.8G     0  7.8G   0% /sys/fs/cgroup
tmpfs           1.6G   24K  1.6G   1% /run/user/120
tmpfs           1.6G  148K  1.6G   1% /run/user/1000
tmpfs           1.6G     0  1.6G   0% /run/user/0

3，格式化：sudo mkfs.ext4 /dev/mmcblk1p1
root@agx:/# sudo mkfs.ext4 /dev/mmcblk1p1
mke2fs 1.44.1 (24-Mar-2018)
/dev/mmcblk1p1 contains a ext4 file system
        last mounted on Sat May 21 13:02:54 2022
Proceed anyway? (y,N) y
Discarding device blocks: done
Creating filesystem with 62467840 4k blocks and 15622144 inodes
Filesystem UUID: 1cf8da8d-5289-4f1e-89bb-94d81b9072b8
Superblock backups stored on blocks:
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
        4096000, 7962624, 11239424, 20480000, 23887872

Allocating group tables: done
Writing inode tables: done
Creating journal (262144 blocks): done
Writing superblocks and filesystem accounting information:
done


4，手动挂载：mount /dev/mmcblk1p1 /work
root@agx:/# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/mmcblk0p1   28G   21G  5.6G  79% /
none            7.4G     0  7.4G   0% /dev
tmpfs           7.8G   40K  7.8G   1% /dev/shm
tmpfs           7.8G  107M  7.7G   2% /run
tmpfs           5.0M  4.0K  5.0M   1% /run/lock
tmpfs           7.8G     0  7.8G   0% /sys/fs/cgroup
tmpfs           1.6G   24K  1.6G   1% /run/user/120
tmpfs           1.6G  152K  1.6G   1% /run/user/1000
tmpfs           1.6G     0  1.6G   0% /run/user/0
/dev/mmcblk1p1  234G   61M  222G   1% /work