Gentoo serial terminal

The problem can usually be fixed by typing the reset command. Another option is to use the " stty sane " and " tput rs1 " commands. The file command can be used to determine a file's type, to try to avoid outputting binary to a terminal in the first place.

The od command or a hex editor can be useful to view binary files. Terminal emulator From Gentoo Wiki. Terminal emulator. Virtual console. These families are referred to as the Instruction Set Architecture. Also, another important concept to grasp is the concept of endianness. Endianness refers to the way that a CPU reads words from main memory. A word can be read as either big endian most significant byte first , or little endian least significant byte first. On MIPS, they can be either.

To separate them apart, we append el to the architecture name to denote little endian. In this section, we'll cover what is needed to successfully network boot a Silicon Graphics workstation or Cobalt Server appliance. This is just a brief guide, it is not intended to be thorough, for more information, it is recommended to read the Diskless nodes article. Depending on the machine, there is a certain amount of hardware that is needed in order to successfully netboot and install Linux.

As mentioned earlier -- this is not a complete guide, this is a bare-bones config that will just get things rolling. Either use this when starting a setup from scratch, or use the suggestions to amend an existing setup to support netbooting. It is worth noting that the servers used need not be running Gentoo Linux, they could very well be using FreeBSD or any Unix-like platform.

However, this guide will assume to be using Gentoo Linux. Here's a bare-bones config to get started. With that setup, one can then add any number of clients within the subnet clause. We will cover what to put in later in this guide. It is recommended to use tftp-hpa as it is the only TFTP daemon known to work correctly. Proceed by installing it as shown below:. Move this elsewhere if necessary. For the purposes of this guide, it is assumed that it is kept in the default location.

Depending on the system the installation is meant for, there are several possible images available for download. PC-1 has Gentoo Linux installed.

The connection settings on both sides were as follows. So the bytes from PC-2 are being received, just not showing up in Minicom. Now at this point, if you are starting to suspect a hardware issue on PC-1, this is where things get interesting and I prove this is not the case!

Everything typed on one machine shows up in the other machine's terminal. This indicates that the hardware on PC-1 is fine. Results identical to test 4 above. Now, to make sure that it is not a problem with the way I have installed Gentoo, I used a live CD version of Gentoo from the CD enclosed in a recent book, Linux Bible Edition, which should have much more credibility than my own installation since I am a newbie, and those guys are authors.

So the live CD Gentoo is behaving the same way as my own Gentoo installation. The results were exactly the same as my test 2 results, which further reinforce the probability that I don't have a hardware problem and that my Gentoo installation is not the problem.

So this leaves me with the conclusion that there is something flawed in Gentoo itself. I am not very knowledgeable about serial drivers. I would like to compare the serial driver versions between my Gentoo machine and my Xandros machine as well as the versions of the serial drivers in the live CD Knoppix and Ubuntu. Does anyone know what specific files I need to look at and compare? Also, does anyone have any idea as to how I should go about solving this problem?

I need to have proper serial data receive functionality on my Gentoo machine, since that will be used to get data from a measuring instrument. Posted: Sun Sep 16, am Post subject:.

Now that we have the base operating system in, we will need to do some file configuration by hand to get the peripherals working. The Gentoo stage 3 comes with the default Gentoo serial port configuration.

In order to make things easier when working with the device tree overlays for the Bluetooth module as well as any applications which were written in a Raspbian environment that uses the serial0 and serial1 aliases, we'll need to first create a udev rule to mimic this behavior. Save and exit the file. Next, create the empty file com. The Raspberry Pi 3 WiFi requires firmware to operate. The files brcmfmacsdio.

They can be downloaded via git. In the menu shown below, this is all that needs to be enabled. The firmware files can be found in the Raspbian bluez-firmware GitHub repository. Both commands will create a HCI device e. Start btattach :. Start btattach at boot:. The chroot environment is very handy as it allows you to configure your startup run levels rc-update as well as update your Portage snapshot emerge --sync.

Additionally, you can set the root password as well as create users in the chroot environment. If you plan to only access your Pi via SSH, you'll need at least networking on startup, which requires either net. Much of the setup prior to booting a new Gentoo install is done in a chroot. Chrooting into an arm64 install from some other arch is beyond the scope of this guide. Instead, only the bare minimum setup from outside the chroot is covered.

I usually copy the hash from another system. Here is a config. If the above does not work, this one should. Here is the cmdline. Be sure to set root to your root partition, and rootfstype to your partition type. For 10 seconds it seems much longer you should see the GPU 'Rainbow' test pattern, then the familiar boot messages.

Log in at the Pi console. Nothing was added to any runlevels during the install, so networking was not started, nor anything that depends on networking, like ntpd and sshd. It's unlikely that WiFi or Bluetooth will work at first boot.