linux内核代码经过编译链接以后生成一个elf文件名叫vmlinuz文件,这个文件在经过arm-linux-objcopy编译以后会生成一个Image镜像文件,vmlinuz elf文件大小为70M以上 而Image镜像文件为7M左右,然后Image文件在进一步经过压缩生成zImage文件,当zImage文件作为启动镜像来启动时,首先要解压这个文件,这个解压过程可以由uboot解压 或...
blkcache-block cache diagnostics and control boot-bootdefault,i.e.,run'bootcmd'bootd-bootdefault,i.e.,run'bootcmd'bootefi-Boots anEFIpayloadfrommemory bootelf-BootfromanELFimageinmemory bootelf_ft-BootfromanELFimageinmemory booti-boot Linux kernel'Image'formatfrommemory bootm-boot application im...
uboot 有 ext2 和 ext4 这两种格式的文件系统的操作命令,常用的就四个命令,分别为:ext2load、ext2ls、ext4load、ext4ls 和 ext4write ext4ls :ext4文件格式查看 ext4load:ex4文件格式镜像搬运到DRAM ext4write:ext4文件格式写到emmc中 7、BOOT操作命令 bootz:要启动linux,需要先将linux镜像文件拷贝到DDR中,如果...
文件位置:u-boot/board/mini2440/u-boot.lds。 OUTPUT_FORMAT("elf32-littlearm","elf32-littlearm","elf32-littlearm")/*指定输出可执行文件是elf格式,32位ARM指令,小端*/ OUTPUT_ARCH(arm) /*指定输出可执行文件的platform为ARM*/ ENTRY(_start) /*指定输出可执行文件的起始地址为_start*/ SECTIONS { ...
OUTPUT_FORMAT("elf32-littlearm","elf32-littlearm","elf32-littlearm")/*指定输出可执行文件是elf格式,32位ARM指令,小端*/ OUTPUT_ARCH(arm) /*指定输出可执行文件的platform为ARM*/ ENTRY(_start) /*指定输出可执行文件的起始地址为_start*/
bootelf - Boot from an ELF image in memory bootm - 从内存启动应用程序 bootp - 通过使用BOOTP /TFTP协议的网络引导映像 bootvx - Boot vxWorks from an ELF image chpart - 更改活动分区 cmp - memory compare coninfo - print console devices and information ...
- alias for 'help'base - print or set address offsetbdinfo - print Board Info structureblkcache - block cache diagnostics and controlboot - boot default, i.e., run 'bootcmd'bootd - boot default, i.e., run 'bootcmd'bootefi - Boots an EFI payload from memorybootelf - Boot from an ...
boot-bootdefault,i.e.,run'bootcmd'bootd-bootdefault,i.e.,run'bootcmd'bootelf-Boot from anELFimageinmemory bootm-从内存启动应用程序 bootp-通过使用BOOTP/TFTP协议的网络引导映像 bootvx-Boot vxWorks from anELFimage chpart-更改活动分区 cmp-memory compare ...
bootelf - Boot from an ELF image in memory 从内存中启动elf镜像 bootm - boot application image from memory 从内存中启动应用镜像 bootp - boot image via network using BOOTP/TFTP protocol 通过网络协议引导镜像 bootvx - Boot vxWorks from an ELF image ...
bootelf - Boot from an ELF image in memory bootm - boot application image from memory bootp - boot image via network using BOOTP/TFTP protocol bootvx - Boot vxWorks from an ELF image bootz - bootLinuxzImage image from memory cmp - memory compare ...