I compiled uboot and Linux kernel packages, used a brand new SD card.and used "sgdisk" to divide them into five areas. fsbl1,fsbl2,ssbl,bootfs,rootfs.
Use the following command to complete the burning of u-boot：
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for basic boot mode : <SDCard dev> = /dev/sdb1
# dd if=u-boot-spl.stm32 of=/dev/sdb1p1
# dd if=u-boot-spl.stm32 of=/dev/sdb1p2
# dd if=u-boot.img of=/dev/sdb1p3
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Using "dd" command, sdb1p1, sdb1p2 and sdb1p3 will be produced in dev directory. Sdb1 is the name of my SD card.
Now I have a problem copying files to bootf and rootfs. Readme.how to.txt is as follows:
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* kernel + devicetree
$> cd <path to install_artifact dir>/install_artifact
Verify sdcard are mounted on your Linux PC: /media/$USER/bootfs
$> cp -r boot/* /media/$USER/bootfs/
Depending of your Linux configuration, you may call the command under sudo
$> sudo cp -r boot/* /media/$USER/bootfs/
Don't forget to unmount properly sdcard
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Before the "cp" command, I need to mount bootf and rootfs. But I don't have sdb1p4 and sdb1p5 in my dev directory.they are bootfs and rootfs. so I can't mount it.
My PC system is Ubuntu 16.04.there seems to be something missing in my operation about this problem. Please help me deal with it. Thank you
