Customer is asking high-capacity external storage(for example >64GB) support on i.MX BSP, ext4 is ok for HC storage, but it can’t be supported by Windows.
Pls find NFTS and exFAT support status on Linux BSP below:
Updated test result on L5.4.70.2.3.0 and L6.1.22:
L5.4.70.2.3.0
1.You can enable ntfs support in kernel config as below, ntfs can be mounted normally, but you can only modify existing file content in disk, you can’t create/delete/rename file on disk.
> File systems > DOS/FAT/NT Filesystems
Log:
root@imx8mpevk:~# mount -t ntfs /dev/sda1 /mnt/fat/
[ 662.732869] ntfs: volume version 3.1.
root@imx8mpevk:~# cp ntfs-3g /mnt/fat/
cp: cannot create regular file '/mnt/fat/ntfs-3g': Permission denied
root@imx8mpevk:~# ls /mnt/fat/
111.png Image_org System Volume Information gpuinfo.sh
root@imx8mpevk:~# vi /mnt/fat/gpuinfo.sh
root@imx8mpevk:~# umount /mnt/fat/
root@imx8mpevk:~#
- ntfs file system can be accessed via ntfs-3g in user space as below
//build:
wget https://tuxera.com/opensource/ntfs-3g_ntfsprogs-2017.3.23.tgz
tar zxvf ntfs-3g_ntfsprogs-2017.3.23.tgz
cd ntfs-3g_ntfsprogs-2017.3.23/
source ../../sdk/environment-setup-aarch64-poky-linux
./configure --host=aarch64-linux --build=aarch64-poky-linux --disable-shared --enable-static
make
ls /src/ntfs-3g
//put it into rootfs
cp ntfs-3g /bin
//test log:
root@imx8mpevk:/#
[ 1058.724471] usb 1-1: USB disconnect, device number 4
[ 1062.058613] usb 1-1: new high-speed USB device number 5 using xhci-hcd
[ 1062.214029] usb-storage 1-1:1.0: USB Mass Storage device detected
[ 1062.220986] scsi host0: usb-storage 1-1:1.0
[ 1063.235871] scsi 0:0:0:0: Direct-Access VendorCo ProductCode 2.00 PQ: 0 ANSI: 4
[ 1063.246185] sd 0:0:0:0: [sda] 15728640 512-byte logical blocks: (8.05 GB/7.50 GiB)
[ 1063.254023] sd 0:0:0:0: [sda] Write Protect is off
[ 1063.259164] sd 0:0:0:0: [sda] No Caching mode page found
[ 1063.264540] sd 0:0:0:0: [sda] Assuming drive cache: write through
[ 1063.296946] sda: sda1
[ 1063.300860] sd 0:0:0:0: [sda] Attached SCSI removable disk
root@imx8mpevk:/# ntfs-3g /dev/sda1 /mnt/fat/
root@imx8mpevk:/# ls /mnt/fat/
README System Volume Information gpu.sh gpuinfo.sh
root@imx8mpevk:/# cp /unit_tests/memtool /mnt/fat/
root@imx8mpevk:/# umount /mnt/fat/
root@imx8mpevk:/# ntfs-3g /dev/sda1 /mnt/fat/
root@imx8mpevk:/# ls /mnt/fat/
README System Volume Information gpu.sh gpuinfo.sh memtool
root@imx8mpevk:/#
3.exFAT is not supported on this BSP..
L6.1.22(you can check it on L5.15 and above, should be the same)
- You can enable ntfs support in kernel config as below, full features can be supported.
> File systems > DOS/FAT/EXFAT/NT Filesystems
- Pls use ‘-t ntfs3’ during mounting, otherwise it will be mounted as ‘read-only’
- Log:
root@imx8ulpevk:~# mount -t ntfs3 /dev/sda1 /mnt/fat/
root@imx8ulpevk:~# ls /mnt/fat/
111.png Image_org 'System Volume Information'
root@imx8ulpevk:~#
root@imx8ulpevk:~# cp gpuinfo.sh /mnt/fat/
root@imx8ulpevk:~# umount /mnt/fat/
root@imx8ulpevk:~#
root@imx8ulpevk:~# mount -t ntfs3 /dev/sda1 /mnt/fat/
root@imx8ulpevk:~# ls /mnt/fat/
111.png Image_org 'System Volume Information' gpuinfo.sh
root@imx8ulpevk:~#
- exFAT has been supported in L6.1.22.
> File systems > DOS/FAT/EXFAT/NT Filesystems
/dev/sda1 on /run/media/sda1 type exfat (rw,relatime,fmask=0022,dmask=0022,iocharset=utf8,errors=remount-ro)
root@imx8ulpevk:~# ls /run/media/sda1
'Certificate of Completion.pdf' carlife.MP4
Image_org example.tflite
L5.4.70_2.3.0 mx8mp_vpu.txt
NXP-5G.mp4 sd.mp4
'System Volume Information' vela.ini
android_p9.0.0_2.1.0-auto-ga_image_8qmek
root@imx8ulpevk:~# ls
Image_org gpuinfo.sh
root@imx8ulpevk:~# cp gpuinfo.sh /run/media/sda1/
root@imx8ulpevk:~# umount /run/media/sda1
root@imx8ulpevk:~#
