osi-tools: Operating System Image Tools

Usage

$ ./bin/osi-mk [FLAGS] SYS.img                               # to build an image
$ ./bin/osi-shell SYS.img                                    # launch an interactive shell in an emulator
$ sudo ./bin/osi-mount --{root|user} SYS.img MNT COMMAND     # run command with SYS.img mounted at MNT
$ sudo ./bin/osi-extract SYS.img IMAGE_SRC_DIR HOST_DST_DIR  # to extract files from an image

Dependencies

I believe the complete list of dependencies is (along with what I believe is the newest feature that is depended on):

• arch-install-scripts
• btrfs-progs
• GNU Bash 4.4 (needs @Q)
• GNU coretutils 8.15 (needs realpath)
• GNU gettext
• QEMU (needs qemu-system-x86_64)
• sed
• sudo
• util-linux-ng 2.18 or newer (needs automatic loop devices in mount)

This can be install on a Parabola Parabola GNU/Linux-libre system with the following command:

sudo pacman -S --needed arch-install-scripts btrfs-progs bash coreutils gettext qemu-system-x86 sed sudo util-linux

The tests require

• BATS
• bats-support
• bats-assert
• bats-file

Developing

You can lint the code in this repository by running make lint, which requires the shellcheck command.

The tests can run in parallel, obeying Make's -j/--jobs flag. Some of the tests write several gigabytes to $TMPDIR; 3GB of space on $TMPDIR is plenty when run serially, but is not enough when run in parallel.