How to keep stable adb connection between multiple android devices and docker container in ubuntu PC
This guide will help you maintain a stable ADB connection between multiple Android devices and a Docker container running on an Ubuntu server.
Blog Posts
Sep 2024
Apr 2023
How to fix [forkpty: Device not configured][Could not create a new process and open a pseudo-tty.]
If you’re using a terminal on macOS (Ventura 13.5) and encounter the following error message when trying to open a new terminal session, this guide will help...
Jun 2022
Jump multiple remote hosts using ProxyCommand (SSH Tunneling)
This article introduces how to ssh-jump on a remote intermediate server(s) to ssh-connect into a target server with a single command.
May 2022
How to permanently add passphrase of private key to ssh-agent (macOS, Ubuntu, and Windows)
When setting up a passwordless SSH login environment using private and public keys, it is necessary to enter a passphrase for the private key when logging in...
How to configure SSH without Passwords
This article presents a secure method for logging into remote servers using private/public key-based SSH connections. The public key serves as the keyhole on...
Apr 2022
How to install/update/run npm, gem, and bundler for Jekyll-based minimal mistake management in macOS
As a minimal mistake Jekyll theme user, I use the following commands to set up and use npm, gem, and bundler for macOS.
Mar 2022
How to prevent PyTorch Distributed Data Parallel (DDP) from freezing
I’ve recently faced an issue with Pytorch Distributed Data Parallel, in which the process hangs without any error message. I don’t exactly know what causes t...
Jan 2022
Routine for setting docker image for deep learning environment
When I set up a new deep learning environment in a docker image, especially for sharing the image while keeping it as light as possible, I use the following ...
Sep 2021
How to clean up .git folder for reducing repository size
If you’re working with large files (such as images and videos) in a git repository and have committed them to your repo, simply removing them in a commit wil...
Aug 2021
How to make private fork of public repository
Github prohibits making a private repository from a forked repository. This article explains how to create a private repository that can incorporate updates ...
Jul 2021
How to maintain relative caret position when scrolling in the vintage mode of Sublime Text 4
I’ve been using Sublime Text 4 in Vintage mode, which enables vi-like editing. When I use vi(m) in Ubuntu, I mostly do scrolling with ctrl-u and ctrl-d, beca...
May 2021
How to install nvcc for conda-installed PyTorch in Ubuntu
When we install PyTorch using conda (e.g.,conda install pytorch torchvision torchaudio cudatoolkit=10.2 -c pytorch), it incompletely installs the cudatoolkit...
Apr 2021
How to clean up docker images/containers
Here are some commands that I use for cleaning up unused or dangling docker images.
Mar 2021
How to use LMDB with PyTorch DataLoader and DistributedDataParallel
Since LMDB cannot be pickled, an error, ...can't pickle Environment Object..., occurs when we naively implement LMDB into data.dataset while wrapping data.Da...
Feb 2021
Visually understanding DoF with thin lens model
The thin lens model provides a simple and intuitive explanation of how depth of field (DoF) is formed in a camera. This model can be used to simplify a more ...
Jan 2021
How to resolve device is busy when unmounting drive in Ubuntu
When the error containing device is busy occurs when one tries to unmount the mounted drive, try this one:
Dec 2020
Dotdrop workflow
This post describes how I use dotdrop for managing my dotfiles (.zshrc, .vimrc, .tmux.conf, etc.)
Sep 2020
How to install/update/run npm, gem, and bundler for Jekyll-based minimal mistake management
As a minimal mistake Jekyll theme user, I use the following commands to set up and use npm, gem, and bundler.
Feb 2020
How to solve An NVIDIA kernel module nvidia appears to already be loaded in your kernel
When I tried to install a new nvidia-driver, the error message An NVIDIA kernel module 'nvidia' appears to already be loaded in your kernel appears.
Aug 2019
How to solve ImportError: cannot import name 'main'
When I upgrade pip3 by typing sudo pip3 install -U pip and use the upgraded one, I get an error message ‘ImportError: cannot import name 'main'’. This is bec...
Jun 2019
How to set up NIS for Ubuntu (Master, Client, Slave)
NIS facilitates the automatic synchronization of user information across multiple clusters. Our lab manages 13 clusters (mark0 to mark11 and markP0) and thus...
Mar 2019
Installing nvidia driver, CUDA, and cuDNN for Ubuntu
This post describes how to install nvidia drivers, CUDA and cuDNN for ubuntu.
Dec 2018
Setting up portable sublime text 3 with LaTexTools for Windows
For those who use LaTeX to write a paper with LaTexTools, a plugin for sublime text (2 or 3), this article will help make them portable.
Sep 2018
When terminal created from docker exec has strange behavior (abnormal size, command vanishing, etc.)
When I launch a docker container using the exec command inside tmux, I occasionally experience odd behaviors in the terminal:
Aug 2018
How to set up logging level in Tensorlayer and Tensorflow
In python logger, there are 5 logging levels: {50: 'FATAL', 40: 'ERROR', 30: 'WARN', 20: 'INFO', 10: 'DEBUG'}. The logger only prints logs that are higher th...
How to fix ubuntu showing grub rescue at booting
When I reinstalled ubuntu from scratch, the machine sometimes throws the following error:
How to fix docker error, docker:Error response from daemon: Unknown runtime specified nvidia
The error usually occurs when Nvidia driver is newly installed or docker/nvidia-docker is installed.
Jul 2018
Setting up Nvidia GPU persistence mode in Ubuntu
When nvidia-smi prints out an output slowly, the following command may by useful:
How to set up ubuntu for deep learning environment
This post summarizes my deep learning environment setting on freshly installed Ubuntu16.04.
Jun 2018
How to avoid Enter passphrase for key for Git
While using git, it is annoying to type a password or passphrase when there are frequent commits/pushes.
May 2018
Solution for docker error, ImportError: libGL.so.1: cannot open shared object file: No such file or directory
When we pull a docker image from the dockerhub, the container sometimes throws an error regarding libGL.so.1:
Installing Docker and Nvidia-docker v1.0.1 in Ubuntu
This post introduces the installation procedure for the docker (community edition) as well as nvidia-docker v1.0.1.
Apr 2018
How to push to or pull from docker hub
Docker hub is very useful for maintaining images, especially when working with many machines with the same image.
Mar 2018
How to set timezone in Ubuntu using terminal
This post describes the timezone setting in Ubuntu16.04.
How to run app with root privilege without password in Ubuntu
Sometimes, there is a need to launch an app with a root privilege. For example, VMware requires the root privilege when it needs to use a physical hard drive...
How to fix repeating characters with tab autocompletion in Ubuntu
This article introduces a solution for character duplication when one types a tab for auto-completion. This usually occurs when one runs a Ubuntu docker imag...
Sep 2017
Setting up LVM (Logical Volume Management) in Ubuntu
In this article, we are grouping four SSDs into two logical drives, where each group consists of two SSDs.
Aug 2017
How to configure Samba on Ubuntu
This article introduces how to install and configure Samba on Ubuntu16.04. Also, we introduce how to mount the shared folder on Ubuntu and Windows.
Jul 2017
User management in Ubuntu
This post describes a multi-user management method that I use in the lab. Since all the users require a root privilege, it is better to have only one group w...