2013年01鐃緒申08鐃緒申
QCOW2 鐃緒申鐃緒申鐃塾駕申鐃循デワ申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃�
QEMU 鐃塾ワ申鐃潤ー鐃緒申鐃春ワ申鐃緒申鐃緒申焚鐃緒申曠妊鐃緒申鐃緒申鐃緒申箸鐃緒申道鐃緒申僉砲鐃緒申鐃緒申曚鐃緒申鐃楯には￥申鐃渋際に使っわ申鐃瞬わ申鐃緒申鐃緒申侫鐃緒申鐃緒申襯居申鐃緒申鐃緒申鐃緒申腓�鐃緒申鐃淑わ申覆鐃緒申襪わ申蓮鐃緒申魅侫鐃緒申鐃緒申鐃祝削申分鐃緒申鐃緒申鐃緒申颪�出わ申鐃緒申法鐃�QCOW2 鐃緒申鐃緒申鐃緒申QEMU Copy-On-Write image file format version 2鐃祝わ申鐃緒申鐃緒申鐃叔わ申鐃緒申
buildroot 鐃叔ビワ申匹鐃緒申鐃� rootfs.tar 鐃緒申鐃初、QCOW2 鐃緒申鐃緒申鐃塾ワ申鐃潤ー鐃緒申鐃春ワ申鐃緒申鐃緒申鐃緒申辰鐃緒申鐃緒申離鐃緒申任鐃緒申鐃�
buildroot 鐃叔ビワ申匹鐃緒申鐃� rootfs.tar 鐃緒申鐃初、QCOW2 鐃緒申鐃緒申鐃塾ワ申鐃潤ー鐃緒申鐃春ワ申鐃緒申鐃緒申鐃緒申辰鐃緒申鐃緒申離鐃緒申任鐃緒申鐃�
鐃縦駈申鐃緒申 Ubuntu 12.04 64bit 鐃叔わ申鐃緒申
鐃宿居申鐃緒申kpartx 鐃緒申鐃緒申鐃竣でわ申鐃緒申鐃緒申
qemu-img鐃緒申qemu-nbd鐃緒申kpartx 鐃薯インスト￥申鐃暑し鐃銃￥申nbd (Network Block Device) 鐃緒申鐃緒申鐃緒申鐃緒申泙鐃緒申鐃�
鐃淑ヘッワ申鐃緒申鐃緒申鐃緒申鐃緒申覆里如鐃�4GB 鐃叔も、100GB 鐃叔も、鐃緒申鐃緒申鐃淑鰹申鐃叔わ申 136KB 鐃塾フワ申鐃緒申鐃暑が鐃叔わ申鐃緒申鐃緒申鐃緒申任鐃緒申鐃緒申鐃�
鐃緒申鐃緒申鐃緒申鐃緒申鐃術￥申鐃銃ワ申鐃緒申鐃緒申鐃祝ワ申鐃緒申鐃緒申鐃緒申鐃緒申鐃暑た鐃緒申法鐃�kpartx 鐃緒申鐃緒申僂鐃緒申董鐃�/dev/mapper/ 鐃淑駕申鐃祝マワ申鐃緒申箸鐃緒申泙鐃緒申鐃�
鐃緒申鐃緒申鐃叔ワ申鐃峻￥申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃瞬わ申鐃緒申鐃緒申鐃緒申鐃緒申瓠種申鐃緒申侫鐃緒申鐃緒申襪�鐃順き鐃緒申鐃淑わ申泙鐃緒申鐃�
鐃緒申鐃緒申辰鐃緒申鐃� umount 鐃緒申鐃殉わ申鐃緒申
鐃宿居申鐃緒申kpartx 鐃緒申鐃緒申鐃竣でわ申鐃緒申鐃緒申
qemu-img鐃緒申qemu-nbd
$ sudo apt-get install qemu-utilsqemu-img 鐃緒申 QCOW2 鐃緒申鐃緒申鐃塾ワ申鐃潤ー鐃緒申鐃春ワ申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃殉わ申鐃緒申鐃緒申鐃緒申鐃叔はとりあ鐃緒申鐃緒申 4GB 鐃叔削申鐃緒申鐃緒申鐃殉わ申鐃緒申鐃緒申kpartx$ sudo modprobe nbd max_part=16
鐃淑ヘッワ申鐃緒申鐃緒申鐃緒申鐃緒申覆里如鐃�4GB 鐃叔も、100GB 鐃叔も、鐃緒申鐃緒申鐃淑鰹申鐃叔わ申 136KB 鐃塾フワ申鐃緒申鐃暑が鐃叔わ申鐃緒申鐃緒申鐃緒申任鐃緒申鐃緒申鐃�
$ qemu-img create -f qcow2 rootfs.qcow2 4GQCOW2 鐃緒申鐃緒申鐃塾フワ申鐃緒申鐃緒申鐃� Linux 鐃緒申念鐃緒申鐃緒申鐃緒申鐃祝￥申qemu-nbd 鐃夙わ申鐃緒申鐃縦￥申鐃緒申鐃緒申鐃術わ申鐃銃￥申鐃緒申鐃潤ー鐃緒申鐃春ワ申鐃緒申鐃緒申鐃� /dev/nbd0 鐃緒申鐃緒申続鐃緒申鐃殉わ申鐃緒申
$ sudo qemu-nbd --connect=/dev/nbd0 `pwd`/rootfs.qcow2鐃緒申鐃緒申鐃緒申未鐃� fdisk 鐃叔パ￥申鐃銃ワ申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申泙鐃緒申鐃�
$ sudo fdisk /dev/nbd0
Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p): p
Partition number (1-4, default 1):
Using default value 1
First sector (2048-8388607, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-8388607, default 8388607):
Using default value 8388607
Command (m for help): w
鐃宿居申鐃緒申鐃緒申鐃盾し鐃淑わ申鐃銃も、/dev/nbd0p1 鐃緒申鐃叔わ申鐃緒申茲�鐃叔わ申鐃緒申1 鐃緒申鐃旬のパ￥申鐃銃ワ申鐃緒申鐃緒申鐃淑削申鐃緒申鐃� 1 鐃縦わ申鐃緒申鐃緒申鐃緒申泙鐃緒申鵑�）わ申mkfs.ext3 鐃緒申 ext3 鐃春ワ申鐃緒申鐃暑シ鐃緒申鐃銃ワ申縫侫鐃緒申鐃緒申泪奪箸鐃緒申泙鐃緒申鐃�$ sudo kpartx -a /dev/nbd0
鐃緒申蓮鐃重�鐃緒申鐃淑とわ申鐃緒申鐃緒申 mount 鐃緒申鐃銃￥申鐃春ワ申鐃緒申鐃緒申鬟灰圈鐃緒申鐃緒申泙鐃緒申鐃緒申鐃銃縁申鐃緒申鐃緒申如鐃緒申鐃渋醐申鐃� QCOW2 鐃緒申鐃潤ー鐃緒申鐃春ワ申鐃緒申鐃暑か鐃初、鐃春ワ申鐃緒申鐃緒申鐃緒申鐃出わ申鐃緒申鐃夙わ申任鐃緒申泙鐃緒申鐃緒申鐃�$ sudo mkfs.ext3 /dev/mapper/nbd0p1$ sudo mkfs.ext3 /dev/nbd0p1
鐃緒申鐃緒申鐃叔ワ申鐃峻￥申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃瞬わ申鐃緒申鐃緒申鐃緒申鐃緒申瓠種申鐃緒申侫鐃緒申鐃緒申襪�鐃順き鐃緒申鐃淑わ申泙鐃緒申鐃�
鐃緒申鐃緒申辰鐃緒申鐃� umount 鐃緒申鐃殉わ申鐃緒申
$ sudo mkdir /mnt/rootfs鐃緒申鐃緒申鐃緒申鬚靴峠鐃塾誌申任鐃緒申鐃� 鐃宿居申鐃緒申kpartx 鐃緒申鐃緒申鐃竣でわ申鐃緒申nbd0 鐃緒申鐃緒申鐃叔わ申鐃緒申函鐃緒申鐃銃暗�鐃緒申 nbd0p1 鐃緒申鐃緒申任鐃緒申鐃処う鐃叔わ申鐃緒申$ sudo mount /dev/mapper/nbd0p1 /mnt/rootfs$ sudo mount /dev/nbd0p1 /mnt/rootfs $ sudo tar xf buildroot-2012.11/output/images/rootfs.tar -C /mnt/rootfs/ $ sudo umount /mnt/rootfs/
鐃緒申鐃粛￥申saito's memo 鐃循￥申鐃緒申 > ARM > ARM鐃緒申鐃淳ワ申譟種申鐃緒申鐃緒申$ sudo kpartx -d /dev/nbd0$ sudo qemu-nbd --disconnect /dev/nbd0
