ืืืขื ืึทื ืืืืืงืืื ื ื ืึธืจ ืืืืื, ืขืก ืืื ืึธืคื ื ืืฉื ืงืืึธืจ ืืืึธืก ืคึผืึทืงืึทืืืฉืึทื ืืืขื ืืืื ืฆื ืื ืฆืื ืจืึธืึธืืคืก.
ืืื ืื ืืขืจืข ืืืขืจืืขืจ, ืขืก ืืื ืฆื ืคืจื ืฆื ืืึทืคึผื LFS, buildroot ืึธืืขืจ yocto (ืึธืืขืจ ืขืคึผืขืก ืึทื ืืขืจืฉ), ืึธืืขืจ ืืืจ ืฉืืื ืืึทืจืคึฟื ืฆื ืึธื ืืืืื. ืคึฟืึทืจ ืื ืจืืึทื (ืืื ืืึธืื 4GB eMMC ืืืืฃ ืคึผืืืึธื ืกืึทืืคึผืึทืื) ืขืก ืืื ืึท ืืืขื ืืืืก ืฆื ืคืึทืจืฉืคึผืจืืืื ืฆื ืืขืืืขืืึธืคึผืขืจืก ืึท ืคืึทืจืฉืคึผืจืืืืื ื ืืืึธืก ืืืขื ืืึธืื ืืื ืฆื ืืขืฉืืืื ื ืฆืืฉืืขืื ืขืคึผืขืก ืืืึธืก ืืื ืืืฆื ืคืขืื ืืืง, ืืื ืืขืืึธืื ืืืจ ืงืขื ืขื ืฉืืขื ืืืง ืงืืืึทืื ืจืฉืืืืช ืคืื ืคึผืึทืงืึทืืืฉืึทื ืืื ืฉืึทืคึฟื ืึท ืจืฉืืื ืคึฟืึทืจ ืื ืฆืื ืจืึธืืฅ.
ืืขืจ ืึทืจืืืงื ืืื ื ืืฉื ื ืืึท ืืื ืืื ืึท ืคึผืฉืื ืงืึธืคึผืืข-ืคึผืึทืคึผ ืืืืขื.
ืืขืจ ืฆืื ืคืื ืืขื ืึทืจืืืงื ืืื ืฆื ืืืืขื Ubuntu rootfs ืคึฟืึทืจ ARM ืืึธืจืื (ืืื ืืืื ืคืึทื, ืืืืืจื ืืืืฃ Colibri imx7d).
ืืืืืื ื ืึท ืืืื
ืืืจ ืึทืกืขืืืึทื ืื ืฆืื ืจืึธืึธืืคืก ืคึฟืึทืจ ืจืขืคึผืืึทืงืืืฉืึทื.
ืึทื ืคึผืึทืงืื ื Ubuntu Base
ืืืจ ืงืืืึทืื ืื ืืขืืืื ื ืืื ืืืืืจื ืืืืฃ ื ืืื ืืื ืืื ืืืขืจ ืืืืืขื ืข ืคึผืจืขืคึฟืขืจืขื ืฆื. ืื ืืื ืืื ืืขืืขืื 20.
$ mkdir ubuntu20
$ cd ubuntu20
$ mkdir rootfs
$ wget http://cdimage.ubuntu.com/ubuntu-base/releases/20.04/release/ubuntu-base-20.04-base-armhf.tar.gz
$ tar xf ubuntu-base-20.04-base-armhf.tar.gz -C rootfsืงืึธื ืืจืึธืืืจืื ื BINFMT ืฉืืืฆื ืืื ืื ืงืขืจื
ืืืื ืืืจ ืืึธืื ืึท ืคึผืจืึธืกื ืคืึทืจืฉืคึผืจืืืืื ื, ืขืก ืืื ืฉืืืฆื ืคึฟืึทืจ BINFMT_MISC ืืื ืึทืืฅ ืืื ืงืึทื ืคืืืืขืจื, ืืืื ื ืืฉื, ืืื ืืื ืืืืขืจ ืึทื ืืืจ ืืืืกื ืืื ืฆื ืืขืื BINFMT ืฉืืืฆื ืืื ืื ืงืขืจื.
ืืึทืื ืืืืขืจ ืึทื BINFMT_MISC ืืื ืขื ืืืืึทืื ืืื ืื ืงืขืจื:
$ zcat /proc/config.gz | grep BINFMT
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_BINFMT_SCRIPT=y
CONFIG_BINFMT_MISC=yืืืฆื ืืืจ ืืึทืจืคึฟื ืฆื ืงืึธื ืืจืึธืืืจื ืื ืกืขืืืื ืืก:
$ ls /proc/sys/fs/binfmt_misc
qemu-arm register status
$ cat /proc/sys/fs/binfmt_misc/qemu-arm
enabled
interpreter /usr/bin/qemu-arm
flags: OC
offset 0
magic 7f454c4601010100000000000000000002002800
mask ffffffffffffff00fffffffffffffffffeffffffืืืจ ืงืขื ืขื ืจืขืืืกืืจืืจื ืืึทื ืืืึทืื ื ืืฆื, ืืืฉื, .
ืืึทืฉืืขืืืงื ืึท ืกืืึทืืืง ืึธืจืขื
ืืืฆื ืืืจ ืืึทืจืคึฟื ืึท ืกืืึทืืืงืื ืคืืจืืืืื ืงืขืื ืืืึทืฉืคึผืื.
!!! ATTENTION!!!
ืืืื ืืืจ ืคึผืืึทื ืฆื ื ืืฆื ืึท ืงืึทื ืืืื ืขืจ ืฆื ืืืืขื ืขืคึผืขืก, ืืฉืขืง ืืืืก:
ืืขืจื ืึธื ืคึฟืึทืจ x86_64 ืืึทืืขืืึธืก ืืื ืึธืจืขื ืืึทืกื ืืืจ ืืึทืจืคึฟื ืฆื ื ืืฆื ืื i386 ืืืขืจืกืืข ืคืื โโqemu:
$ wget http://ftp.debian.org/debian/pool/main/q/qemu/qemu-user-static_5.0-13_amd64.deb
$ alient -t qemu-user-static_5.0-13_amd64.deb
# ะฟััั ะฒ rootfs ะธ ะธะผั ะธัะฟะพะปะฝัะตะผะพะณะพ ัะฐะนะปะฐ ะดะพะปะถะฝะพ ัะพะฒะฟะฐะดะฐัั ั /proc/sys/fs/binfmt_misc/qemu-arm
$ mkdir qemu
$ tar xf qemu-user-static-5.0.tgz -C qemu
$ file qemu/usr/bin/qemu-arm-static
qemu/usr/bin/qemu-arm-static: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), statically linked, BuildID[sha1]=be45f9a321cccc5c139cc1991a4042907f9673b6, for GNU/Linux 3.2.0, stripped
$ cp qemu/usr/bin/qemu-arm-static rootfs/usr/bin/qemu-arm
$ file rootfs/usr/bin/qemu-arm
rootfs/usr/bin/qemu-arm: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), statically linked, BuildID[sha1]=be45f9a321cccc5c139cc1991a4042907f9673b6, for GNU/Linux 3.2.0, strippedืืฉืจืึธืึธื
ืคึผืฉืื ืฉืจืืคื:
ch-mount.sh
#!/bin/bash
function mnt() {
echo "MOUNTING"
sudo mount -t proc /proc proc
sudo mount --rbind /sys sys
sudo mount --make-rslave sys
sudo mount --rbind /dev dev
sudo mount --make-rslave dev
sudo mount -o bind /dev/pts dev/pts
sudo chroot
}
function umnt() {
echo "UNMOUNTING"
sudo umount proc
sudo umount sys
sudo umount dev/pts
sudo umount dev
}
if [ "$1" == "-m" ] && [ -n "$2" ] ;
then
mnt $1 $2
elif [ "$1" == "-u" ] && [ -n "$2" ];
then
umnt $1 $2
else
echo ""
echo "Either 1'st, 2'nd or both parameters were missing"
echo ""
echo "1'st parameter can be one of these: -m(mount) OR -u(umount)"
echo "2'nd parameter is the full path of rootfs directory(with trailing '/')"
echo ""
echo "For example: ch-mount -m /media/sdcard/"
echo ""
echo 1st parameter :
echo 2nd parameter :
fiืืืจ ืืึทืืืื ืืขืจื ืื ืจืขืืืืืึทื:
$ ./ch-mount.sh -m rootfs/
# cat /etc/os-release
NAME="Ubuntu"
VERSION="20.04 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal
# uname -a
Linux NShubin 5.5.9-gentoo-x86_64 #1 SMP PREEMPT Mon Mar 16 14:34:52 MSK 2020 armv7l armv7l armv7l GNU/Linuxื ืึธืจ ืคึฟืึทืจ ืฉืคึผืึทืก, ืืึธืื ืืื ืื ืืขืกืื ืื ืืจืืืก ืืืืืขืจ ืืื ื ืึธื ืื ืกืืึธืืื ื ืื ืืื ืืืื (ืคึฟืึทืจ ืืืจ) ืืึทื ื ืคืื ืคึผืึทืงืึทืืืฉืึทื:
# du -d 0 -h / 2>/dev/null
63M /ืืื ืก ืืขืจืืืึทื ืืืงื:
# apt update
# apt upgrade --yesืืึธืืืจ ืื ืกืืึทืืืจื ืื ืคึผืึทืงืึทืืืฉืึทื ืืืึธืก ืืืจ ืืขื ืขื ืืื ืืขืจืขืกืืจื ืืื:
# SYSTEMD_IGNORE_CHROOT=yes apt install --yes autoconf kmod socat ifupdown ethtool iputils-ping net-tools ssh g++ iproute2 dhcpcd5 incron ser2net udev systemd gcc minicom vim cmake make mtd-utils util-linux git strace gdb libiio-dev iiodืงืขืจื ืขื ืืขืืขืจ ืืขืงืขืก ืืื ืืึทืืืฉืืื ืืขื ืขื ืึท ืืึทืืื ืืขืจ ืขื ืื. ืคืื ืงืืจืก, ืืืจ ืืืขืื ื ืืฉื ืื ืกืืึทืืืจื ืื ืืึธืึธืืืึธืึทืืขืจ, ืงืขืจื, ืืึทืืืฉืืื, ืืืื ืืืื ืืืจื ืืืื ืื. ืืื ืืืขืื ืงืืืขื ืฆื ืืื ืื ืคืื ืึทืจืืืก ืึธืืขืจ ืืืจ ืืืขืื ืึทืกืขืืืึทื ืืื ืืื ืึธืืขืจ ืืื ืืืขื ืืืื ืืขืืขืื ืฆื ืืื ืื ืืืจื ืื ืืจืขื ืคืึทืืจืืงืึทื ื, ืืื ืงืืื ืคืึทื ืืึธืก ืืื ืืืืึทืืขืจ ืคืื ืื ืคืึทืจื ืขื ืคืื ืื ืื ืกืืจืึทืงืฉืึทื ื.
ืืื ืขืืืขืืข ืืึธืก, ืืืขืจืกืืข ืืืืืขืจืืืฉืึทื ืก ืืื ืคึผืึทืกืืง, ืึธืืขืจ ืขืก ืืื ืืขืกืขืจ ืฆื ื ืขืืขื ืืื ืคึฟืื ืื ืงืขืจื ืืืืขื.
# apt install --yes linux-headers-genericืืึธืืืจ ืืขื ืืืึธืก ืืื ืืขืฉืขื ืืื ืขืก ืืื ืืขืืืขื ืึท ืคึผืืึทืฅ:
# apt clean
# du -d 0 -h / 2>/dev/null
770M /ืื ืืืืกื ื ืืฉื ืคืึทืจืืขืกื ืฆื ืฉืืขืื ืึท ืคึผืึทืจืึธื.
ืคึผืึทืงืื ื ืื ืืืื
$ sudo tar -C rootfs --transform "s|^./||" --numeric-owner --owner=0 --group=0 -c ./ | tar --delete ./ | gzip > rootfs.tar.gzืืื ืืขืจืฆื, ืืืจ ืงืขื ืขื ืื ืกืืึทืืืจื ืขืืงืงืขืขืคึผืขืจ ืืื ืื ืึทืืืึธืคึผืืฉ ืืึทืฉืืขืืืงื
ื ื, ืืึธืื ืก ืืึธืื ืืืจ ืคืื ืื ืืขืจืืขืืืืื ืืื ืืืขืจ ืคึฟืึทืจืืึทืืืื ื, ืื ืึทืจืืขื ืื ืืขืืืืื ืืืืฃ ืืื ืืขืกืืขืจ ืฆื ืึทืกืขืืืึทื ืฉืคึผืขืืขืจ ืคืึทืจืฉืืืขื ืข ืืืขืจืกืืขืก ืคืื ืืื ืืืขืจ ืกืืกืืขื.
ืขืืงืข ืจ ืงื ื ืืื ืืืข ืจ ืืืืฃ .
ืืืืขืจืงืืึทื ืืื ืึท ืคึผืขืจืืขื ืืขื ืขื ืื:
- ืืืจ ืงืขื ืขื ืืึทืฉืืฆื ืืืืขืจ ืฆืืืืืื
- ืืืฉืขื ืขืจืืื ืึท ืืื ืฆืืง ืฉืืืกื ืคึฟืึทืจ ืืขืืขืจ ืืืื
- ืืืกืืืืึทื ืงืจืึทืคื ืฉืืืคึผื
- ืืื"ื ื ...
# ssh-keygen
# apt install etckeeper
# etckeeper init
# cd /etc
# git remote add origin ...ืืื ืก ืฉืืขืื ืึทืจืืืฃ ืึทืืืึธืคึผืืฉ
ืืืจ ืงืขื ืขื, ืคืื ืงืืจืก, ืืึทืื ืฆืืืืืื ืืืืฃ ืื ืืืื ืืื ืฉืืืึทืื (ืืึธืื ืก ืืึธืื ืืืจ ืืึทืื ืึท ืฉืจืืคื ืึธืืขืจ ืึท ืืื ืกื ืืืึธืก ืืืขื ืืืืคื ืื ืขืจืฉืืขืจ ืืึธื ืขืก ืืื ืืึธื ืืฉื).
# cat /etc/etckeeper/etckeeper.conf
PUSH_REMOTE="origin"ืึธืืขืจ ืืืจ ืงืขื ืขื ืืึธื ืขืคึผืขืก ืกืืึทืจืืขืจ ...
ืคืืื ืืืขื
ืืึธืืืจ ืืึธืื ืึท ืืื ืฆืืง ืืืืขื ืืืืขื, ืืึธืื ืื ืกืืจืืึทื ื ืืืขืจ ืคืื ืื ืคึผืจืึทืกืขืกืขืจ (ืึธืืขืจ MAC - ืขืจื ืกื ืงืึธืืคึผืึทื ืืขืก ืงืืืคื ืื ืงืืื):
cat / proc / cpuinfo
# cat /proc/cpuinfo
processor : 0
model name : ARMv7 Processor rev 5 (v7l)
BogoMIPS : 60.36
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xc07
CPU revision : 5
processor : 1
model name : ARMv7 Processor rev 5 (v7l)
BogoMIPS : 60.36
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xc07
CPU revision : 5
Hardware : Freescale i.MX7 Dual (Device Tree)
Revision : 0000
Serial : 06372509ืืขืจื ืึธื ืืืจ ืงืขื ืขื ื ืืฆื ืขืก ืคึฟืึทืจ ืื ื ืึธืืขื ืคืื ืื ืฆืืืืึทื ืฆื ืืืึธืก ืืืจ ืืืขืื ืฉืืืคึผื:
# cat /proc/cpuinfo | grep Serial | cut -d':' -f 2 | tr -d [:blank:]
06372509ืืึธืืืจ ืืึทืื ืึท ืคึผืฉืื ืฉืจืืคื:
# cat /etc/etckeeper/commit.d/40myown-push
#!/bin/sh
set -e
if [ "$VCS" = git ] && [ -d .git ]; then
branch=$(cat /proc/cpuinfo | grep Serial | cut -d':' -f 2 | tr -d [:blank:])
cd /etc/
git push origin master:${branch}
fiืืื ืึทื ืก ืึทืืข - ื ืึธื ืึท ืืฉืขืช ืืืจ ืงืขื ืขื ืงืืงื ืืื ืื ืขื ืืขืจืื ืืขื ืืื ืืึทืื ืึท ืจืฉืืื ืคืื ืคึผืึทืงืึทืืืฉืึทื ืคึฟืึทืจ ืื ืฆืื ืคืืจืืืืึทืจืข.
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