Woih!!: Ubuntu ARM Rootfs From Scratch

refer:
https://wiki.ubuntu.com/ARM
https://wiki.ubuntu.com/ARM/RootfsFromScratch

download and install debootstrap for jaunty
http://archive.ubuntu.com/ubuntu/pool/main/d/debootstrap/debootstrap_1.0.12_all.deb

install:


apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm$ sudo apt-get install vde nfs-kernel-server debootstrap


apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm$ sudo dpkg -i debootstrap_1.0.12_all.deb 
[sudo] password for apogee: 
(Reading database ... 137953 files and directories currently installed.)
Preparing to replace debootstrap 1.0.10 (using debootstrap_1.0.12_all.deb) ...
Unpacking replacement debootstrap ...
Setting up debootstrap (1.0.12) ...
Processing triggers for man-db ...
apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm$

building the rootfs


apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm$ sudo ./build-arm-rootfs --fqdn tsbox --login ubuntu --password mybox --imagesize 1G --seed ubuntu-minimal

tambahan:
http://fedoraproject.org/wiki/Architectures/ARM/HowToQemu
http://iomem.com/index.php?archives/2-Running-Linux-for-ARM-processors-under-QEMU.html&serendipity[entrypage]=1

------------------------

sambungan cerita (update: 2009/4/16)

command semalam tu berjaya menghasilkan satu fail rootfs armel-rootfs-200904151837.tgz

Jadi, buat img untuk kita mount guna qemu.


apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm$ mkdir armel

apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm$ mv armel-rootfs-200904151837.tgz armel

apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm$ cd armel/

apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm/armel$ dd if=/dev/zero of=ubuntu-arm.img bs=1MB count=1024
1024+0 records in
1024+0 records out
1024000000 bytes (1.0 GB) copied, 20.7023 s, 49.5 MB/s
apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm/armel$ ls
armel-rootfs-200904151837.tgz  ubuntu-arm.img

apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm/armel$ mkdir qemu

apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm/armel$ ls
armel-rootfs-200904151837.tgz  qemu  ubuntu-arm.img

apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm/armel$ sudo mke2fs -F -m 0 -b 1024 ubuntu-arm.img 
mke2fs 1.41.3 (12-Oct-2008)
Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
62976 inodes, 1000000 blocks
0 blocks (0.00%) reserved for the super user
First data block=1
Maximum filesystem blocks=68157440
123 block groups
8192 blocks per group, 8192 fragments per group
512 inodes per group
Superblock backups stored on blocks: 
 8193, 24577, 40961, 57345, 73729, 204801, 221185, 401409, 663553

Writing inode tables: done                            
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 21 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.

lepas tu mount loop:


apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm/armel$ sudo mount -t ext2 -o loop ubuntu-arm.img qemu

apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm/armel$ cd qemu/

apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm/armel/qemu$ ls
lost+found

dan seterusnya, extract tgz tadi. guna option -p untuk --preserve-permissions


apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm/armel/qemu$ sudo tar zxpf ../armel-rootfs-200904151837.tgz 

apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm/armel/qemu$ ls
bin  boot  dev  etc  home  lib  lost+found  media  mnt  opt  proc  root  sbin  selinux  srv  sys  tmp  usr  var

apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm/armel/qemu$ cd ..

apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm/armel$ sudo umount qemu

apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm/armel$ mv ubuntu-arm.img ../.

apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm/armel$

sekarang dah boleh ngetest img yang baru dibuat... yaaaay!!


apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm$ ls
armel             build-arm-rootfs-200904151734.log  debootstrap_1.0.12_all.deb  rgauge-rootfs.tgz  vmlinuz-2.6.28-versatile
build-arm-rootfs  build-arm-rootfs-200904151837.log  rgauge-rootfs.img           ubuntu-arm.img

apogee@ubuntubox:/media/secndrv/Books/ubuntu-arm$ sudo qemu-system-arm -M versatilepb -kernel ./vmlinuz-2.6.28-versatile -hda ubuntu-arm.img -m 256 -append "root=/dev/sda mem=256M ro"

dan inilah hasilnya...