freebsd


If you wonder to use Docker [1] or Travis CI [2] for build test or more advanced automation, note that these are Linux [3] only solutions and will not work with other operating systems such as FreeBSD [4]. You may want to take a look at old good Jenkins [5] for wider application possibilities 🙂

[1] https://www.docker.com/
[2] https://travis-ci.org/
[3] https://www.linux.com/
[4] https://www.freebsd.org/
[5] https://jenkins.io/

freebsd


Sometimes you need to perform a network installation (i.e. when no USB or DVD drive is allowed to boot, but you can boot PXE). In case of FreeBSD you can use DNSMASQ to serve the DHCP that will assign the initial client address and configuration along with PXE boot image served over tFTP. At this point you will have bootloader running, so you can serve filesystem over NFS to obtain working environment and/or the installer..

  • Create a directory that will hold the target filesystem over network. In my case that was
    /usr/local/tftp/FreeBSD
  • Put OS/Installer files inside above directory
    cd /usr/local/tftp/FreeBSD
    wget http://(..)/file.iso
    7z x file.iso
  • Edit /etc/exports to export the filesystem over NFS
    /usr/local/tftp/FreeBSD -ro -alldirs -network 192.168.0.0
  • Install the dnsmasq
    pkg install dnsmasq
  • Setup the /usr/local/etc/dnsmasq.conf
    enable-tftp
    tftp-root=/usr/local/tftp/FreeBSD
    
    dhcp-range=192.168.0.50,192.168.0.60,255.255.255.0,1h
    dhcp-boot=boot/pxeboot
    dhcp-option=option:router,
    dhcp-option=option:root-path,/usr/local/tftp/FreeBSD
    
  • Restart services
    service nfsd onerestart
    service dnsmasq onerestart
  • In case you get bootloader running but troubles with NFS make sure that mountd is running. Also you can see who is using the NFS shares with
    showmount -a

PXE Boot always use initial DHCP/tFTP to fetch configuration and bootloader, so the first stage is similar and should work with other Operating Systems and Bootloaders as well, the rest is up to bootloader itself..

freebsd


Use advanced features of your Synaptics Trackpad on a laptop running FreeBSD [1] with:

  • set in /boot/loader.conf:
    hw.psm.synaptics_support="1"
  • set in /etc/rc.conf:
    moused_enable="YES"
  • set in /etc/X11/xorg.conf:
    Section "InputDevice"
        Identifier      "Mouse0"
        Driver          "mouse"
        Option          "Protocol"      "auto"
        Option          "Device"        "/dev/sysmouse"
        Option          "ZAxisMapping"  "4 5 6 7"
    EndSection

If you want to have “MacBook” like two-finger scrolling along with other parameters you can set in /etc/sysctl.conf:

hw.psm.synaptics.min_pressure=16
hw.psm.synaptics.max_pressure=220
hw.psm.synaptics.max_width=10

hw.psm.synaptics.vscroll_hor_area=1300
hw.psm.synaptics.vscroll_ver_area=-600
hw.psm.synaptics.vscroll_min_delta=50
hw.psm.synaptics.vscroll_div_min=100
hw.psm.synaptics.vscroll_div_max=150

hw.psm.synaptics.weight_current=3
hw.psm.synaptics.weight_previous=6
hw.psm.synaptics.weight_previous_na=20
hw.psm.synaptics.weight_len_squared=2000

hw.psm.synaptics.div_min=9
hw.psm.synaptics.div_max=17
hw.psm.synaptics.div_max_na=30
hw.psm.synaptics.div_len=100

hw.psm.synaptics.margin_top=200
hw.psm.synaptics.margin_right=200
hw.psm.synaptics.margin_bottom=200
hw.psm.synaptics.margin_left=200

hw.psm.synaptics.window_min=4
hw.psm.synaptics.window_max=10
hw.psm.synaptics.multiplicator=10000

[1] https://wiki.freebsd.org/SynapticsTouchpad

freebsd


If you want to use NTFS volumes on FreeBSD [1], you need to use FUSE infrastructure andNTFS-3G [2] port. Syntax of fstab is a bit differen in this case:

/dev/ntfs_partition /mnt/ntfs_mounpoint fuse rw,locale=pl_PL.UTF8,mountprog=/usr/local/bin/ntfs-3g 0 0

Also remember to put fuse_load=”YES” in /boot/loader.conf and install the sysutils/fusefs-ntfs port. Do not use hibernated volumes.

[1] https://www.freebsd.org
[2] https://www.freshports.org/sysutils/fusefs-ntfs

freebsd


If you happen to get a nice laptop with a powerful graphics card, such as polish HYPERBOOK SL502VR [1], it is highly probable that you will use UEFI boot mode. In that case you need to use SCFB [2] driver instead of VESA. Use the xf86-video-scfb package to get Xorg running.

Hybrid Graphics at first used MUX device that did a LCD connect to a selected video card on boot. Nowadays both cards use common Video Framebuffer [3] to draw over a screen. The simple video card (Intel in my case) is always active, while the more powerful and power consuming video card is started on-demand (nVidia in my case). This however requires a dedicated DMA BUF implementation, which is not yet available on FreeBSD, so none of the cards can see any monitor connected, resulting in “No Screens Found Error” from Xorg.

I have already reported a bug/feature request to nVidia. Also developers of FreeBSD are working on the Hybrid Graphics implementation.

[1] http://sklep.hyperbook.pl/hyperbook-sl502-vr-p651rp6g-gtx-1060-p-25965.html
[2] https://wiki.freebsd.org/Graphics/SCFB
[3] https://en.wikipedia.org/wiki/Framebuffer

freebsd


Created a FreeBSD Port for Google Protobuf version 3.1.0 🙂

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=214957

freebsd


My request for base DHCP Client options parsing was partially implemented.

freebsd


My port of HackRF has been committed. Enjoy your HackRF One SDR on FreeBSD OS! =)

freebsd


If you want to build your own disk array, let’s say RAID, on your computer to increase disk space and efficiency, you should know about few important things in general:

  • You can consider MBR and x86 obsolete. New way is GPT, UEFI, AMD64.
  • Large RAID arrays (over 2TB) will not work with older hardware and OS (except FreeBSD) due to architecture limitations.
  • To use large RAID volumes you must use GPT partition scheme. MBR will not do the job.
  • Some systems can use GPT only with UEFI BIOS (i.e. Windows works with GPT only via UEFI). You may be forced to buy new motherboard.
  • UEFI and GPT is totally different way of bootstrap so you can forget what you know about BIOS and MBR here.
  • Hard Drives have hidden corruption-fix mechanisms in firmware that will make your RAID array fail to operate. For RAID choose dedicated drives such as WD RED (not Green, not Black, not Blue).

In order to use GPT and UEFI I have replaced my nice ASUS M4A88TD-V EVO/USB3 motherboard with M5A97 R2.0 only because M4 series did not support UEFI. New BIOS is totally different, but I am not really sure if replacing the hardware was mandatory..

Summing up, if you want to use large RAID volumes make sure first that you can use GPT and UEFI BIOS is present on your AMD64 hardware. If not, still you can use the FreeBSD as it knows how to bypass some limitations. Also remember to use dedicated HDD for RAID operations.

freebsd


There are situations when you have a nice server out there, and you want/need someone to upload important files, but you only want to give them a minimal access to the system. You can use SSHD with sFTP and /sbin/nologin shell for that in chroot environment (dedicated limited userspace). Note that SCP in fact requires a working shell, so you need to use sFTP in this case..

Create a new user account with existing ftp group and /sbin/nologin shell:

# adduser

Alternatively you can modify an existing account to share:

# pw groupmod ftp -m username
# pw usermod username -s /sbin/nologin

You need to set correct permissions to the user home directory and public directory inside for upload:

# chown root:wheel /home/username
# mkdir /home/username/public
# chown username:ftp /home/username/public

Now modify the SSHD server configuration file /etc/ssh/sshd_config and append:

Match Group ftp
        ChrootDirectory         /home/%u
        ForceCommand            internal-sftp
        AllowTcpForwarding      no
        PermitTunnel            no
        X11Forwarding           no

Remember to restart the SSHD in order to apply new configuration:

# service sshd restart

Once the account is not necessary anymore remember to remove it:

# pw userdel username