1How to test build using Aboriginal Linux system images. 2 3* Put a source tree into hdc.dir/. 4For example, this should work: 5git clone git://busybox.net/var/lib/git/busybox.git 6 7* Run ./make-hdc-img.sh: it will generate ext2 image file, 8hdc.img, from hdc.dir/* data. This requires root for loop mount. 9 10* Download and unpack, or build from source and unpack 11one or more system-image-ARCH directories into this directory 12(the one which contains this README). 13 14* Install qemu-system-ARCH. The arch names may differ from 15system-image-ARCH: for example, all ARM flavors (armv4l...armv6l) 16are served by the same qemu - qemu-system-arm. On my machine, 17I needed to install qemu-system-{arm,mips,x86,ppc,sparc,m68k,sh4}. 18 19* Run: ./parallel-build-hdc-img.sh system-image-DIR1 system-image-DIR2... 20(background it if you don't want to see "Waiting to finish" thing). 21This runs build in several qemu virtual machines in parallel. 22 23* Observe system-image-*.log file(s) with growing log of the build. 24 25There is no automated detection of errors for now: you need to examine 26logs yourself. 27 28Log files will also contain uuencoded (or if all else fails, od -tx1'ed) 29binary, if build was successful. 30 31To debug a build problem in one of the sandboxes, change keep_hdb 32to "keep_hdb=true" in parallel-build-hdc-img.sh 33- this preserves system-image-ARCH/hdb.img after the build, 34so you can go into system-image-ARCH and run 35"HDB=hdb.img ./dev-environment.sh" to debug the problem. 36 37You can also run "./parallel-build-hdc-img.sh -s system-image-ARCH" 38- single mode, output is to screen and serial input is from keyboard. 39 40If hdc.dir/bin/busybox-$ARCH exists, it will be used during build 41to supply additional tools (dir with all applets appended to $PATH). 42 43For me, the following system images worked: 44system-image-armv4l 45system-image-armv4tl 46system-image-armv5l 47 od is buggy on arm*: 48 # echo Hello-hello-hello-hello | od -b 49 0000000 110 145 154 154 157 055 150 145 154 154 157 055 150 145 154 154 50 0000000 157 055 150 145 154 154 157 012 <= WRONG OFFSET 51 0000000 (can also be even more bogus like 17767153361) 52system-image-i686 53system-image-mips - od is buggy 54system-image-mipsel - od is buggy 55system-image-x86_64 56system-image-powerpc - qemu 1.2.2 didn't work, 2.4.0 worked; od is buggy 57system-image-sparc - qemu 1.2.2 didn't work, 2.4.0 worked; od is buggy 58 59And these did not: 60system-image-armv6l - hang on "Uncompressing Linux... done, booting the kernel" 61system-image-m68k - my qemu doesn't like "-M q800" 62system-image-mips64 - init dies "Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000a" 63system-image-sh4 - qemu segfaults early in kernel boot 64