I tried numerous approaches, I never got anything to work except pointing CONFIG_INITRAMFS_SOURCE at a directory with my intramfs tree in it. I am sure other ways work, but I never managed to figure out what I was doing wrong. Regardless that has worked well for me.
When I build I end up with a single file - zImage,.elf that has both my kernel and the initramfs tree in it. While there are a number of distro's that seem to use initramfs as a separate file - much like initrd, my loader has no provisions for a 2nd file, and the kernel build process wraps everything together which works fine for me. I have never seen your "junk in compressed archive" error, and I have been doing this for almost 2 years. But I have frequently had decompression errors. These typically have been the result of errors in the PPC zlib libraries. I beleive somewhere between 2.6.16 and 2.6.18 these libraries got updated, and the PPC version of the new ones had problems. Anyway, after 2.6.18 the new ones are good - though somehow once in a while the broken ones seem to creep into my development tree, but updating it usually fixes things. There also may be a total size issue. I am hazy on the details, but I beleive if the size of size of the kernel goes over 3mb that there are CONFIG values that may need to be changed. I am not sure whether that is compressed size decompressed size, kernel size, or combined kernel + initramfs size. Regardless, one suguestion would be to try with a very minimal initramfs tree and add things until it blows up. Richard Danter wrote: > Hi all, > > I am having a problem booting a kernel with an initramfs. The kernel version > is 2.6.14. The target is a ppc 82xx board. > > I have tried both generating the cpio.gz file myself (find . | copi -o -H > newc | gzip > ../initramfs_data.cpio.gz) and pointing initramfs source to a > root FS directory (using xconfig) and then re-building my kernel. > > Usually the error is "junk in compressed archive" though I also see an > occasional error about padding. > > I am using U-Boot to load the kernel image (uImage). > > My host is SuSE 10.0 (x86), though I guess that shouldn't make any difference > (endianism?). > > Any thoughts on what I may be doing wrong? > > Thanks > Rich > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded@ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded > _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
