Thanks hugely for the suggestions. I need ext3 since this build is also used for rebuilding or fixing filesystems but you make a good point.
One of the errors that I made previously, and I appreciate everyone pointing out that 2.6 was not necessarily larger than 2.4, is that I did not carefully go down each tree in the menuconfig. At the time I did not realize that 2.6 had so many options and buried menus. I put in the linux-tiny patch for 2.6.14, and after working on the config for an hour or so, I got it down to 1020K with gcc-3.3. Based on Eric's suggestions, I took the same config and put it on a system with gcc-4.0, put in the -Os option, and got a size of 814K! This is with all I need in the kernel and the kexec option. If you recall my limit is about 950K-960K so this is perfect. I am assuming the kexec tools needs clib so I will have to splice this into busybox somehow but hopefully it won't add too much. I haven't made sure it all works yet, but it is close enough to start debugging. Thanks tremendously for all the help. Steve G. Eric W. Biederman wrote: > >The two interesting pieces for your style of configuration are: >1) The -Os work that has been going on recently, I think I have > heard 10% reduction for that. >2) Careful selection of which compiler you are using as that makes > a noticeable difference. >3) Look under CONFIG_EMBEDDED and possibly elsewhere for options > you don't need and can turn off. CONFIG_EMBEDDED also has some > smaller alternatives for some of the common features. > >You might also grab ext2 instead of ext3. When clean either will >work. > >Eric > > -- linuxbios mailing list [email protected] http://www.openbios.org/mailman/listinfo/linuxbios
