aio3568系统下，无法挂载emmc分区
1）系统启动后，通过串口登录到系统里面，想通过mount来挂载指定分区，发现会报以下错误：root@rk3568-buildroot:/userdata# mount /dev/mmcblk0p2 mnt/
[ 1319.267226] FAT-fs (mmcblk0p2): utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive!
NTFS signature is missing.
Failed to mount '/dev/mmcblk0p2': Invalid argument
The device '/dev/mmcblk0p2' doesn't seem to have a valid NTFS.
Maybe the wrong device is used? Or the whole disk instead of a
partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around?2）通过fdisk -l 查看分区信息：
# fdisk -l
Disk /dev/ram0: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/mtdblock0: 32 MiB, 33554432 bytes, 65536 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mmcblk0: 29.12 GiB, 31268536320 bytes, 61071360 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 3A030000-0000-4E62-8000-74DD00004243
Device Start EndSectorsSize Type
/dev/mmcblk0p1 16384 24575 8192 4M unknown
/dev/mmcblk0p2 24576 32767 8192 4M unknown
/dev/mmcblk0p3 32768 294911 262144128M unknown
/dev/mmcblk0p4294912 425983 131072 64M unknown
/dev/mmcblk0p5425984 491519 65536 32M unknown
/dev/mmcblk0p6491520 753663 262144128M unknown
/dev/mmcblk0p7753664342937526757121.3G unknown
/dev/mmcblk0p8 3429376 61071295 57641920 27.5G unknown
我的问题是：
1、emmc分区类型显示为unknown是否正常？如果正常，这样做目的是什么？
2、如何才能成功挂载emmc的分区到指定目录？
谢谢！
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