NetBSD workshop
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The document summarizes a 4-hour NetBSD workshop that will cover installing NetBSD on VirtualBox and a Raspberry Pi, cross-compiling kernels for various hardware architectures, and performing kernel updates. It lists the required hardware, software, and files to download in preparation for the workshop.
NetBSD workshop
- 2. OverView in 4hours ● Install NetBSD/amd64 on VirtualBox – Make earmv6hf cross-compiling toolchain – Make RPI kernel ● Install NetBSD/earmv6hf on RPI – Play RPI with NetBSD – Feel difference between your favorite environment ● Copy your RPI kernel to RPI – Update NetBSD-current kernel ● Boot RPI with your cross-compiled kernel
- 3. Hardwares ● Windows 10 PC with VirtualBox ● Raspberry PI – MicroSD Card: Over 4GB class 10 – HDMI Display – USB Keyboard/mouse – USB power supply – Ethernet Cable ● Internet access via Ethernet Cable – RPI get IP address via DHCP – RPI set time via NTP
- 4. Pre-Downloading ● NetBSD-7.1.amd64.iso ● src.tar.gz ● VirtualBox ● Rawrite32.exe ● RPI Image – 2017-07-15-netbsd-earmv6hf.img.gz or newer – http://cdn.netbsd.org/pub/NetBSD/misc/jun/raspberry-pi – http://mail-index.netbsd.org/port-arm/2017/07/13/msg004307.html – https://github.com/ebijun/NetBSD/blob/master/RPI/RPIimage/READ ME
- 5. VirtualBox ● NetBSD on VirtualBox – Assign 2GB mem: Disk 10GB ● NetBSD-7.1-amd64.iso ● Set NetBSD source on /usr/src – cd /usr – ftp http://cdn.netbsd.org/pub/NetBSD/NetBSD-current/tar_files/src.tar .gz – tar xzvf src.tar.gz
- 6. NetBSD RPI Image ● on Windows ● http://cdn.netbsd.org/pub/NetBSD/misc/jun/raspberry- pi/2017-07-15-earmv6hf/2017-07-15-netbsd-raspi- earmv6hf.img.gz ● http://www.netbsd.org/~martin/rawrite32/download.html ● Use rawrite32 to write RPI image to microSD ● Connect RPI: ● Boot ● Wait 15 min to resize partition
- 7. Using RPI image ● Login: root ● startx ● medit ● mikutter ● mlterm-fb ● omxplayer & youtube-dl – pkg_add omxplayer – pkg_add youtube-dl
- 8. PaX ● Some application exec failed on starting ● sysctl -a |grep pax – security.pax.mprotect.enabled = 1 – security.pax.mprotect.global = 1 – security.pax.mprotect.ptrace = 1 – security.pax.mprotect.debug = 1 – security.pax.segvguard.enabled = 1 – security.pax.segvguard.global = 1 ● Loooose protection: (bad manner) – sysctl -w security.pax.mprotect.enabled=0
- 9. NTP time setting ● ntpq -p ● /etc/rc.d/ntpd stop ● /etc/rc.d/ntpdate start ● /etc/rc.d/ntpd start ● ntpq -p
- 10. Reboot and / mount failed ● Power supply cut down failure – make file system damaged ● Reboot but / read only access ● drop on single usermode – df – fsck /dev/ld0a – reboot ● /etc/fstab – add “log,noatime” – man 5 fstab
- 11. RPI:/boot ● Kernel – kernel.img – kernel for RPI0/1 – kernel7.img – kernel for RPI2/3 ● cmdline.txt – root=ld0a console=fb – Add -s to boot single user mode ● config.txt – http://elinux.org/RPiconfig – hdmi_group=2 – hdmi_mode=16
- 12. /etc/rc.conf ● rc_configred=YES ● sshd=YES ● ntpd=YES ● hostname=nandemoii
- 13. NetBSD source ● dhcpcd ● ftp http://cdn.netbsd.org/pub/NetBSD/NetBSD-current /tar_files/src.tar.gz ● tar xzvf src.tar.gz ● mv src /usr/src ● mkdir /usr/obj
- 14. Kernel cross build for RPI2 ● cd /usr/src ● ./build.sh -u -U -m evbarm -a earmv6hf tools ● ./build.sh -u -U -m evbarm -a earmv6hf kernel=RPI2 ● Copy netbsd.bin to /boot/kernel7.img ● objdump -D netbsd.bin ● Copy netbsd.bin to RPI:/boot/kernel7.img ● Set over 2GB mem for VirtualBox,if failed
- 15. Kernel cross build for KOBO ● cd /usr/src ● ./build.sh -j 6 -u -U -m evbarm -a earmv7hf tools ● ./build.sh -j 6 -u -U -m evbarm -a earmv7hf kernel=KOBO ● Copy netbsd.bin to /boot/kernel7.img ● objdump -D netbsd.bin
- 16. Kernel cross build for NetWalker ● cd /usr/src ● ./build.sh -j 6 -u -U -m evbarm -a earmv7hf tools ● ./build.sh -j 6 -u -U -m evbarm -a earmv7hf kernel=NETWALKER ● Copy netbsd.bin to /boot/kernel7.img ● objdump -D netbsd.bin
- 17. Kernel cross build for earmv4 ● cd /usr/src ● ./build.sh -j 6 -u -U -m hpcarm tools ● ./build.sh -j 6 -u -U -m hpcarm kernel=WZERO3 ● Copy netbsd to MSDOS partition ● Copy /usr/src/sys/arch/hpc/stand/binary/ARM/hpcboot.exe.uue ● Uudecode hpcboot.exe.uue ● objdump -D netbsd
- 18. Kernel cross build for mipsel ● cd /usr/src ● ./build.sh -j 6 -u -U -m hpcmips tools ● ./build.sh -j 6 -u -U -m hpcmips kernel=GENERIC ● Copy netbsd to MSDOS partition ● Copy /usr/src/sys/arch/hpc/stand/binary/MIPS/hpcboot.exe.uue ● Uudecode hpcboot.exe.uue ● objdump -D netbsd
- 19. Kernel cross build for sh3 ● cd /usr/src ● ./build.sh -j 6 -u -U -m hpcsh tools ● ./build.sh -j 6 -u -U -m hpcsh kernel=GENERIC ● Copy netbsd to MSDOS partition ● Copy /usr/src/sys/arch/hpc/stand/binary/SH3/hpcboot.exe.uue ● uudecode hpcboot.exe.uue ● objdump -D netbsd
- 20. Kernel cross build for sh4 ● cd /usr/src ● ./build.sh -j 6 -u -U -m dreamcast tools ● ./build.sh -j 6 -u -U -m dreamcast kernel=GENERIC ● objdump -D netbsd
- 21. Paths ● /etc/mk.conf ● /usr/src – obj → ln -s /usr/obj ● tooldir.NetBSD-8.99.1-amd64 – bin/nbmake-hpcmips ● destdir.hpcmips ● releasedir – sys/arch/hpcmips/ ● conf/GENERIC ● compile/obj/GENERIC/netbsd ● compile/obj/GENERIC/netbsd.bin ● compile/obj/GENERIC/netbsd.ub
- 22. CVS update ● cd /usr/src ● script 20170810.log ● cvs update -Pad ● exit ● grep -v Updating 20170810.log |more
- 23. MediaTek MT7620 ● ELECOM WRH-300CR ● http://pastebin.com/n05jnhjs ● NetBSD/evbmips: ● /usr/src/sys/arch/evbmips/conf ● grep MT7620 – ZYXELKX
- 24. Kernel cross build for MT7620 ● cd /usr/src ● ./build.sh -j 6 -u -U -m evbmips -a mipsel tools ● ./build.sh -j 6 -u -U -m evbmips -a mipsel kernel=ZYXELKX ● objdump -D netbsd
- 25. OrangePI ● Allwinnler H ● earmv7hf ● https://github.com/jaredmcneill/netbsd-arm- docs/wiki/Allwinner
- 26. Kernel cross build for OrangePI ● cd /usr/src ● ./build.sh -j 6 -u -U -m evbarm -a earmv7hf tools ● ./build.sh -j 6 -u -U -m evbarm -a earmv7hf kernel=SUNXI ● https://github.com/jaredmcneill/netbsd-arm- docs/wiki/Allwinner ● objdump -D netbsd.bin
- 27. Uboot ● Armbian – https://github.com/ebijun/NetBSD/blob/master/sunxi/u-boot /Makefile – apt-get install binutils-arm-none-eabi – apt-get install gcc-arm-none-eabi – apt-get install swig libpython-dev – make ${BOARD}_defconfig;make ● pkgsrc/sysutils/u-boot-orangepi-plus2e ● dd if=u-boot-sunxi-with-spl.bin of=imagefile bs=1024 seek=8 conv=sync