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== Erch is Embedded Arch == | == Erch is Embedded Arch == | ||
Revision as of 14:41, 13 June 2012
Erch is Embedded Arch
Being able to build a small image of arch for embedded purposes.
Build chroot
Start by building a chroot via the devtools package.
sudo mkarchroot -n -C pacman.conf -M makepkg-i686.conf $HOME/erch/rootfs base
After this completes then you need to package it up.
cd rootfs/ sudo tar -zcf ../rootfs.tgz .
Now we create an ext[2,3,4] image
dd if=/dev/zero of=rootfs.ext3 bs=1MB count=0 seek=1024 # seek=1024 = 1GB while seek=2048 = 2GB etc mkfs.ext3 -F rootfs.ext3 mkdir mnt sudo mount -o loop rootfs.ext3 mnt tar -C mnt -zxf rootfs.tgz
This is the root file system of our arch image.
To test I used qemu.
qemu -hda rootfs.ext3 -kernel rootfs/boot/vmlinuz26 -initrd root/boot/kernel26.img append "root=/dev/sda"
It took a while to boot and ran into some errors about a read only file system.
What's next
Getting a minimal group (pacman -S minimal)
Different categories for minimal:
minimal- | packages |
---|---|
busybox | busybox |
uclibc | uclibc |
- Making build scripts to ease the pain of all these commands. I really like the installer for Arch so maybe something similar to that.
- getting ABS going to rebuild the system to makepkg specs.