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文件系统分区

CHAO TANG2
Prodigy 70 points
Other Parts Discussed in Thread: AM3354

TI 大神们

       TI AM3354 用的1G NANDFLASH, 内核3.14.28  

    现在MLO, UBOOT, zImage, dtb, ubi五个镜像，想把UBI分成BASICFS, LIB, APP三个镜像来烧写，且文件系统用YAFFS或者RAMDISK等不带CACHE的文件系统，请问有相应文档可供操作吗？谢谢

  • 0
    TI__Mastermind 19320 points

    http://processors.wiki.ti.com/index.php/Creating_a_RAMDISK?keyMatch=ramdisk&tisearch=Search-EN-Everything

    http://processors.wiki.ti.com/index.php/UBIFS_Support?keyMatch=ubifs&tisearch=Search-EN

    http://processors.wiki.ti.com/index.php/Create_a_YAFFS_Target_Image?keyMatch=yaffs&tisearch=Search-EN-Everything

    其他的可以在公网上搜一下，都是通用的

  • 0 回复 Denny%20Yang99373
    Prodigy 70 points

    Yang

    Uboot参数如下

    ramargs=setenv bootargs console=${console} ${optargs} root=${ramroot} rootfstype=${ramrootfstype}
    ramboot=echo Booting from ramdisk ...; run ramargs;nand read ${fdtaddr} NAND.u-boot-spl-os; nand read ${loadaddr} NAND.kernel; bootz ${loadaddr} ${rdaddr} ${fdtaddr}
    ramdisk_addr_r=0x88080000
    ramroot=/dev/ram0 rw
    ramrootfstype=ext2
    rdaddr=0x88080000    

    制作RAMDISK如下

        genext2fs -b 204800 -d rootfs/ ramdisk
        gzip -9 ramdisk

        mkimage -A arm -O linux -T ramdisk -C gzip -a 0x88080000 -e 0x88080000 -n 'uboot ext2 ramdisk rootfs' -d ramdisk.gz ramdisk.img

    烧写后

    Booting from ramdisk ...

    NAND read: device 0 offset 0x80000, size 0x40000
     262144 bytes read: OK

    NAND read: device 0 offset 0x200000, size 0x800000
     8388608 bytes read: OK
    Kernel image @ 0x82000000 [ 0x000000 - 0x4128a0 ]
    Wrong Ramdisk Image Format
    Ramdisk image is corrupt or invalid

    请指导下，谢谢