Forum Discussion
Honored ContributoruClinux without Flash (again)
I decided to give uClinux a try on my custom board, but I only have an SD card slot, no CFI. When reading the install guide for uClinux, and when trying it, it won't let me build a kernel project without a CFI device present? Is there any way to get around this? It seems odd that I can't build the kernel and run from DRAM, and then write to the SD Card if I wish to boot...
Thx!58 Replies
Altera_Forum"all of the thread is talking about how to build the kernel under linux"
- Altera_Forum
> I'd like to build out vmlinux.bin in order to let u-boot to boot or flash-programmer.
> How to do it ? For u-boot: 1. Optionally compress the linux binary. 2. Create the u-boot image file from the linux binary (or compressed binary). 3. Load the image file into ram. 4. Execute the u-boot "bootm" command. Regards, --Scott - Altera_Forum
1.
----------------------------------------------------- In redhat, when I make ARCH=.... it just built out vmlinux, which is used for "nios2-download -g vmlinux" to debug in SDRAM. I'd like to get vmlinux.bin, which is used for nios2-flash-program. is it also nios2-elf-objcopy?? 2. ----------------------------------------------------- there is a exe file in <plugs>/<microtronix>/application/bin/elf2flt.exe but how to get elf2flt in redhat? I cannot surf marc's page to build toolchain. - Altera_Forum
Regarding Q1, I'm not sure, I tried doing the same at one point, but I don't think I ever got it...
Regarding elf2flt, check the linux distribution CD where you got all the linux binaries from. If it's not there, I'm afraid you will have to build the toolchain somehow... or at least get those binaries. You can probably email Marc himself and ask for binaries. - Altera_Forum
1. There is no elf2flt in the linux distribution CD. The source is in the examples/software/linux/utils/elf2flt. But you need libbfd to build it. It should be better to do the buildroot following the marc's page.
2. "nios2-elf-objcopy -O binary vmlinux vmlinux.bin" will create the raw binary file. - Altera_Forum--- Quote Start --- originally posted by hippo@Dec 14 2005, 08:06 PM 1. there is no elf2flt in the linux distribution cd. the source is in the examples/software/linux/utils/elf2flt. but you need libbfd to build it. it should be better to do the buildroot following the marc's page.
2. "nios2-elf-objcopy -o binary vmlinux vmlinux.bin" will create the raw binary file.
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--- Quote End --- I agree with hippo - the toolchain is ultimately the best way to go... I tried working with the windows one, and it's just so much slower and you can't automate it like with linux - so I would definitely advise trying to build it.
- Altera_Forum
but I cannot surf marc's website here, China.
- Altera_Forum--- Quote Start --- originally posted by mountain8848@Dec 15 2005, 03:13 AM but i cannot surf marc's website here, china.
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--- Quote End --- I'm looking for a Proxy Server outside China,so we can visit the site
