[yocto] Unable to get serial console login prompt - PowerPC 440 Virtex 5 processor

[Elvis Dowson]

Hi,
        I decided to modify the bash and busybox recipes to build statically, and try to create a core-image-minimal root filesystem, so that I can get a sensible prompt with paths set, etc, to debug the dynamic linking issue.

Just copying a static bash binary to the root of the ramdisk image and specifying init=/bash didn't work for a static bash+core-image-minimal root filesystem, it aborts with a panic. If I have only the bash executable in the ramdisk and nothing else, it displays the bash prompt.

Now, I've noticed something weird during core-image-minimal image generation. 

When I build the static versions of bash, the size of the binary is 8MB, but when I explore the binary in the tar.gz image or extract it to my ramdisk, it shows as being only 1.6MB.

How can there be a difference between the statically built bash file 

/tool/yocto/poky/build/tmp/work/ppc440-poky-linux/bash-4.2-r4/image/bin/bash (8MB)

and in the file contained in the core-image-minimal-virtex-5.tar.gz 

/bin/bash (1.6MB)

I'm seeing the same discrepancy for busybox

/tool/yocto/poky/build/tmp/work/ppc440-poky-linux/busybox-1.19.4-r18/image/bin/busybox (8.2 MB)

and in the generate rootfs image

/bin/busybox (1.4MB)

This shouldn't happen, right? 

Best regards,

Elvis Dowson
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