-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Paul Sokolovsky schreef: | Hello, | | On Sat, 08 Mar 2008 11:24:02 +0100 | Koen Kooi <[EMAIL PROTECTED]> wrote: | |> -----BEGIN PGP SIGNED MESSAGE----- |> Hash: SHA1 |> |> Hi, |> |> This morning I sat down and looked at why the initramfs kernels fail |> to include an initramfs. I finally found out what is wrong. |> |> The kernel shows the following output: |> ~ GEN usr/initramfs_data.cpio.gz |> after which the initramfs is only 4kB big (aka an empty archive). |> |> ~From usr/Makefile: |> |> quiet_cmd_initfs = GEN $@ |> ~ cmd_initfs = $(initramfs) -o $@ $(ramfs-args) $(ramfs-input) |> |> That command will overwrite any existing initramfs_data.cpio.gz since |> the kernel was unpacked later than our initramfs_data.cpio.gz was |> created. | | That's rather strange, because initramfs copying is handled by | do_compile_prepend, and it worked for me as expected so far.
The Makefile sees it as 'stale' and rebuilds it. |> I 'fixed' it by replacing cmd_initfs with 'echo'. The proper |> fix would have been to put the contents our out initramfs in some dir |> and have the kernel make its own initramfs_data.cpio.gz from that, | | The reason I bothered to use internal kernel Makefile interface instead | of external (CONFIG_INITRAMFS_SOURCE) because the former turned out to | be easier than the latter! For CONFIG_INITRAMFS_SOURCE, we'd need to | boringly adhoc-sed the defconfig, and then initramfs image must be | stupidly provided as .cpio (not .gz). Again, once I saw that "drop | initramfs in the magic place" approach worked from the first time, I | didn't bother to break that ;-). It works if 'cp' doesn't preserve the original mtime. Somehow it does do that on my machine. | Nonetheless, I committed small fixes to do_compile_prepend - clean | initramfs unconditionally (so nothing stale could be picked) up and | fixed that bashism... You didn't look at my fixes first ;) Now the .inc reads: ~ rm usr/initramfs_data.cpio.gz [..] ~ if [ -e usr/initramfs_data.cpio.gz ] ; then ~ rm usr/initramfs_data.cpio.gz ~ fi regards, Koen -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (Darwin) iD8DBQFH0qopMkyGM64RGpERAnJ0AJ98u6pQxJcf2h5rXWcq6107a+1nRwCcCDu4 cDiOuDKNK2INURRDf+39slE= =U+y1 -----END PGP SIGNATURE----- _______________________________________________ Angstrom-distro-devel mailing list Angstrom-distro-devel@linuxtogo.org http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/angstrom-distro-devel
