Goal
Custom configure a kernel for gumstix overo.
In particular, I wanted to add support for ext4 and gpt (as opposed to mbr)
Procedure
Begin to configure the kernel
cd ~/overo-oe
REV=34 # CHANGE THIS to be the current kernel revision
bitbake linux-omap3-2.6.${REV} -c clean
bitbake linux-omap3-2.6.${REV} -c configure
Get into the bitbake environment.
cd tmp/work/overo-angstrom-linux-gnueabi/linux-omap3-2.6.${REV}-r*/git
cp ../temp/run.do_configure.* ./
vim run.do_configure.*
# replace the last line `do_configure' with `bash --norc`
# :%s/^do_configure$/bash --norc/g
./run.do_configure.*
Now at the bash-4.0$ prompt (which has all of the cross-compile variables pre-set)
make menuconfig
Once you've made the changes you need you may want to save the .config
Now run bitbake again
bitbake bitbake linux-omap3-2.6.${REV}
or
bitbake linux-omap3-2.6.34 -f -c compile
bitbake linux-omap3-2.6.34 -f -c deploy
And install onto the gumstix's microSDHC:
IP=192.168.1.20 # CHANGE THIS to the gumstix' ip address
scp tmp/deploy/glibc/images/overo/uImage-overo.bin root@${IP}:/media/mmcblk0p1/uImage
Note: /media/mmcblk0p1 will mount by default with the sync option, which makes transfer terribly slow.
Appendix
For me, bitbake linux-omap3-2.6.34 -c menuconfig results in:
NOTE: Running task 368 of 368 (ID: 5, /home/harry/overo-oe/org.openembedded.dev/recipes/linux/linux-omap3_2.6.34.bb, do_menuconfig)
ERROR: function do_menuconfig failed
ERROR: log data follows (/home/harry/overo-oe/tmp/work/overo-angstrom-linux-gnueabi/linux-omap3-2.6.34-r89/temp/log.do_menuconfig.16568)
| Xlib: extension "Generic Event Extension" missing on display "localhost:11.0".
| Xlib: extension "RANDR" missing on display "localhost:11.0".
| Xlib: extension "Generic Event Extension" missing on display "localhost:11.0".
| )
| GConf Error: Failed to contact configuration server; some possible causes are that you need to enable TCP/IP networking for ORBit, or you have stale NFS locks due to a system crash. See http://projects.gnome.org/gconf/ for information. (Details - 1: Failed to get connection to session: /bin/dbus-launch terminated abnormally with the following error: Autolaunch requested, but X11 support not compiled in.
| Cannot continue.
| )
| **
| ERROR:terminal-app.c:1444:terminal_app_init: assertion failed: (app->default_profile_id != NULL)
| /home/harry/overo-oe/tmp/work/overo-angstrom-linux-gnueabi/linux-omap3-2.6.34-r89/temp/run.do_menuconfig.16568: line 1223: 16570 Aborted gnome-terminal --disable-factory -t "$TERMWINDOWTITLE" -x $SHELLCMDS
NOTE: Task failed: /home/harry/overo-oe/tmp/work/overo-angstrom-linux-gnueabi/linux-omap3-2.6.34-r89/temp/log.do_menuconfig.16568