Archival filesystem or format

I'm looking for a file type for storing archives of systems that have been decomissioned. At the moment, we primarily use tar.gz, but finding and extracting just a few files from a 200GB tar.gz...

Investigating squashfs compression ratio

Is there any tool to examine an existing squashfs image and and find out compression ratios per file? Bonus points if it helps me can estimate the flash usage of statically linked symbols in a...

How to get Menu key working on VirtualBox/Android x86 on Mac?

I'm trying out using VirtualBox and Android x86 as a faster alternative to the emulator that comes with the Android SDK, which is so laggy as to be unusable on my 2GHz quad core Mac with 16GB...

Bash script creating hybrid iso generates “unexpected end of file”

I've created a simple bash script that creates a hybrid iso. But when I try to run it, I get the output: hybridiso.sh: line 58: syntax error: unexpected end of file. I've checked the script and...

NDK No such file or directory

I am trying to download the Android NDK and extract the android-ndk-r10c-linux-x86_64.bin package. The web site says to do the following: chmod a+x...

In a setuid root program, how to check that the current user (that root is doing the work for) owns a file?

The use case is a mount tool, I want to restrict mounting (a unionfs(r+x dir, squashfs) ) to files owned by the caller. I know about fusefs, But I'd like to use overlayfs and squashfs in the kernel.

How to handle squashfs in Windows

I have to update some files in a squashfs image file. I found a tool in Linux but not in Windows. Can anyone help?

libgit2 alpine linux docker error

Ok, This is above my understanding. I have really no idea what exactly is wrong here but something is. I am on the verge of breaking by banging my head on the wall and yet nothing came up. Can any...

How do you pull library dependencies of binary you want to package using snapcraft

I am trying out the new linux packaging tool http://snapcraft.io/create/ It does have some documentation but it's not very mature and doesn't contain everything. What I am trying to do is to...

Docker windows loading kernel modules

I'm running Docker for Windows (similar effect described below is observable on MacOSX) I have a Docker Container in which a program tries to access a squashfs image. To access squashfs the kernel...

Installing OpenSSL inside a docker image

I'm working with Docker and I have the following Dockerfile FROM ubuntu:16.04 RUN dpkg --add-architecture i386 && apt update && apt install -y \ bc \ build-essential \ ...

How to build my own custom Ubuntu ISO with docker

As a background, I have a custom Ubuntu LiveUSB that will automatically boot into "Try it" and the OS will have pre-installed apps that I have burned into the ISO itself. It works great, but I...

Pycharm: Compile Cython Extensions Error - unable to execute 'gcc': No such file or directory

On Ubuntu 14.04, I use Pycharm Professional Edition. When I start a debug session, I see the following message in the event log of Pycharm: Python Debugger Extension Available Cython extension...

Recompiling OpenWRT - what 'make' commands are needed to include any changes while saving time on unaffected files

I'm exploring the effect on my router of various source changes to OpenWRT. I've cloned the relevant release's tag to a new local branch with git. I plan to hack around with the code and see if I...

Create alpine linux iso from docker - libburn permission denied

I have been trying to build an iso-image for alpine-linux inside a docker container following the standard instructions here however i seem to be unable to actually write the .iso back into the...

Error when compile Squashfs tools from source

I'm trying to compile modified squashfs tools from source code (GPL source). Installation 'readme' from original pack have notes that it can be built without needing to patch the...

Singularity Could not virtualize file system namespace: Operation not permitted

I'm trying to run Singularity container inside Docker container from following Dockerfile (command to build: docker build -f ./Dockerfile -t rocker-singularity .): FROM...

Mysql will not install due to mariadb install but mariadb is not installed

Been trying for hours to get mysql installed but it failed due to a conflict. This is a brand newly installed CentOS 8 x64 (latest) and it's fully updated. There are no custom packages installed...

How to build and install yugabyte db version 2.0.6.0 from github source?

a) downloaded yugabyte-db.tar.gz from github b) created directory /opt/yugabyte/yugabyte-2.0.6.0 c) extracted to /opt/yugabyte d) made /opt/yugabyte/yugabyte-master as present working directory e)...

Selected processor does not support `dmb ish' in ARM mode

I am building an embedded linux distro on a Beaglebone Black (AM335x chip Cortex-A8 Arm-v7 Instruction set) using crosstool-NG, U-Boot, Kernel (5.5.5) and buildroot. When compiling the kernel I am...

RedHat UBI 8 install expect package

I have expect script that I need to run under RedHat UBI 8 container. I'm trying to install expect via snap package manager, but I have problem starting snapd. After issuing systemctl enable --now...

Question about differences using fscrypt on ubifs compared with ext4

I am working on an embedded Linux project that can run on multiple platforms. One uses e.MMC for storage and another NAND flash. I want to encrypt all the filesystems (mainly to protect against...

zlib1g-dev is already installed but shows ModuleNotFoundError: No module named 'zlib'

In my Debian 10 OS, I have several Python versions as 2.7, 3.7 and 3.8. For Python 3.8, pip did not work(no module name pip) and I tried to install pip for Python 3.8 with 'sudo python3.8...

How does "bitbake virtual/kernel" work if kernel recipes don't have PROVIDES variable set to virtual/kernel?

I'm trying to understand a few pieces associated with using bitbake to compile the linux image and generating a boot image that would be used to flash onto the processor. How come bitbake...