BRN:Software:Build and Distribution:Build and install an image: Difference between revisions
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LD=/tmp/mj-build/openwrt/staging_dir_mipsel/bin/mipsel-linux-uclibc-ld \ |
LD=/tmp/mj-build/openwrt/staging_dir_mipsel/bin/mipsel-linux-uclibc-ld \ |
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CROSS_COMPILE=/tmp/mj-build/openwrt/staging_dir_mipsel/bin/mipsel-linux-uclibc- |
CROSS_COMPILE=/tmp/mj-build/openwrt/staging_dir_mipsel/bin/mipsel-linux-uclibc- |
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$ cp -fpR /tmp/mj-build/openwrt/build_mipsel/loader-0.04/loader.gz /tmp/mj-build/openwrt/build_mipsel/loader.gz |
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$ cp -fpR /tmp/mj-build/openwrt/build_mipsel/loader-0.04/loader.o /tmp/mj-build/openwrt/build_mipsel/loader.elf |
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$ echo -ne "\\x00" >> /tmp/mj-build/openwrt/build_mipsel/linux-2.6-brcm/loader.tmp.gz |
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* Compress the binary code (with LZMA) |
* Compress the binary code (with LZMA) |
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* Make TRX headers |
* Make TRX headers |
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$ /tmp/mj-build/openwrt/staging_dir_mipsel/bin/trx \ |
$ /tmp/mj-build/openwrt/staging_dir_mipsel/bin/trx \ |
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-o /tmp/mj-build/openwrt/ |
-o /tmp/mj-build/openwrt/build_mipsel/linux-2.6-brcm/kernel.trx \ |
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/tmp/mj-build/openwrt/build_mipsel/linux-2.6-brcm/loader.tmp.gz \ |
/tmp/mj-build/openwrt/build_mipsel/linux-2.6-brcm/loader.tmp.gz \ |
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/tmp/mj-build/openwrt/build_mipsel/linux-2.6-brcm/vmlinux.lzma |
/tmp/mj-build/openwrt/build_mipsel/linux-2.6-brcm/vmlinux.lzma |
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* Put loader and TRX image into resulting (bootable) kernel image |
* Put loader and TRX image into resulting (bootable) kernel image |
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$ dd if=/tmp/mj-build/openwrt/build_mipsel/loader.elf of=/tmp/mj-build/openwrt/bin/bootable-kernel-image.bin bs=131072 conv=sync |
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$ cat /tmp/mj-build/openwrt/build_mipsel/linux-2.6-brcm/kernel.trx >> /tmp/mj-build/openwrt/bin/bootable-kernel-image.bin |
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= RootFS = |
= RootFS = |
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Revision as of 12:49, 11 October 2006
Kernel
ELF-executable compressed kernel image
- Strip off some (unneeded) binary code segments
$ /tmp/mj-build/openwrt/staging_dir_mipsel/bin/mipsel-linux-uclibc-objcopy -O binary \ -R .reginfo \ -R .note \ -R .comment \ -R .mdebug \ -S /tmp/mj-build/openwrt/build_mipsel/linux-2.6-brcm/linux-2.6.16.7/vmlinux /tmp/mj-build/openwrt/build_mipsel/linux-2.6-brcm/vmlinux
- Build loader program for decompressing LZMA-compressed at boot time
$ make -C /tmp/mj-build/openwrt/build_mipsel/loader-0.04 \
CC=/tmp/mj-build/openwrt/staging_dir_mipsel/bin/mipsel-linux-uclibc-gcc \
LD=/tmp/mj-build/openwrt/staging_dir_mipsel/bin/mipsel-linux-uclibc-ld \
CROSS_COMPILE=/tmp/mj-build/openwrt/staging_dir_mipsel/bin/mipsel-linux-uclibc-
$ cp -fpR /tmp/mj-build/openwrt/build_mipsel/loader-0.04/loader.gz /tmp/mj-build/openwrt/build_mipsel/loader.gz
$ cp -fpR /tmp/mj-build/openwrt/build_mipsel/loader-0.04/loader.o /tmp/mj-build/openwrt/build_mipsel/loader.elf
$ cp -fpR /tmp/mj-build/openwrt/build_mipsel/loader.gz /tmp/mj-build/openwrt/build_mipsel/linux-2.6-brcm/loader.tmp.gz
$ echo -ne "\\x00" >> /tmp/mj-build/openwrt/build_mipsel/linux-2.6-brcm/loader.tmp.gz
- Compress the binary code (with LZMA)
$ cat /tmp/mj-build/openwrt/build_mipsel/linux-2.6-brcm/vmlinux \
| /tmp/mj-build/openwrt/staging_dir_mipsel/bin/lzma e \
-si -so -eos -lc1 -lp2 -pb2 > /tmp/mj-build/openwrt/build_mipsel/linux-2.6-brcm/vmlinux.lzma
- Make TRX headers
$ /tmp/mj-build/openwrt/staging_dir_mipsel/bin/trx \
-o /tmp/mj-build/openwrt/build_mipsel/linux-2.6-brcm/kernel.trx \
/tmp/mj-build/openwrt/build_mipsel/linux-2.6-brcm/loader.tmp.gz \
/tmp/mj-build/openwrt/build_mipsel/linux-2.6-brcm/vmlinux.lzma
- Put loader and TRX image into resulting (bootable) kernel image
$ dd if=/tmp/mj-build/openwrt/build_mipsel/loader.elf of=/tmp/mj-build/openwrt/bin/bootable-kernel-image.bin bs=131072 conv=sync $ cat /tmp/mj-build/openwrt/build_mipsel/linux-2.6-brcm/kernel.trx >> /tmp/mj-build/openwrt/bin/bootable-kernel-image.bin