如何挂载已经编译好的kernel.img

bacon36

新手，编译好的kernel文件。想挂载到目录上查看内容。但是

sudo mount -t ext[234] [-o loop] kernel.img testmount/

1. mount: wrong fs type, bad option, bad superblock on /dev/loop3,
   
2.        missing codepage or helper program, or other error
   
3.        In some cases useful info is found in syslog - try
   
4.        dmesg | tail  or so

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dmesg|tail:

1. [13035.226684] EXT4-fs (loop3): VFS: Can't find ext4 filesystem

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fdisk -l kernel.img

1. 
   
2. Disk kernel.img: 6 MB, 6330880 bytes
   
3. 255 heads, 63 sectors/track, 0 cylinders, total 12365 sectors
   
4. Units = sectors of 1 * 512 = 512 bytes
   
5. Sector size (logical/physical): 512 bytes / 512 bytes
   
6. I/O size (minimum/optimal): 512 bytes / 512 bytes
   
7. Disk identifier: 0x1a000003
   
8. 
   
9. Disk kernel.img doesn't contain a valid partition table

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ubuntu14.4的发行版
按照网上资料，查了下没有没有 /etc/filesystems 和 /etc/vfs

完全不知道怎么办了。

zhansb

kernel.img只能刷哦，不能想system那样挂载

bacon36

zhansb 发表于 2015-1-22 18:19
kernel.img只能刷哦，不能想system那样挂载

那请问有没有什么方法查看编译好的目录结构呢？

zhansb

楼主可以看看这个文件arch/arm/Makefile：

1. 332 kernel.img: zImage
   
2. 333     $(Q)$(srctree)/mkkrnlimg $(objtree)/arch/arm/boot/zImage $(objtree)/kernel.img >/dev/null
   
3. 334     @echo '  Image:  kernel.img is ready'
   
4. 335
   
5. 336 %_kernel.img: %.dtb zImage
   
6. 337     $(Q)cat $(objtree)/arch/arm/boot/zImage $(objtree)/arch/arm/boot/dts/$*.dtb > $(objtree)/zImage-dtb && \
   
7. 338     $(srctree)/mkkrnlimg $(objtree)/zImage-dtb $(objtree)/kernel.img >/dev/null && \
   
8. 339     rm -f $(objtree)/zImage-dtb
   
9. 340     @echo '  Image:  kernel.img (with $*.dtb) is ready'
   
10. 341
    
11. 342 LOGO := $(notdir $(wildcard $(srctree)/logo.bmp))
    
12. 343 %.img: %.dtb kernel.img $(LOGO)
    
13. 344     $(Q)$(srctree)/resource_tool $(objtree)/arch/arm/boot/dts/$*.dtb $(LOGO)
    
14. 345     @echo '  Image:  resource.img (with $*.dtb $(LOGO)) is ready'  

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了解一下kernel.img和zImage的格式