Install Utility in Rescue

Rescue recovery and diagnostics mode contains preinstalled tools for system diagnostics and recovery.

If you need additional tools, install their packages via the pacman package manager.

Packages can be installed:

• from the official Arch Linux tools repository;
• the AUR repository, where users publish useful tools.

warning

Tools are installed to RAM, so all installed tools will be deleted after the server reboots.

From the Arch Linux repository

1. Boot the server in Rescue recovery and diagnostics mode.

2. Mount the file system and expand the cowspace partition size, which is used for downloading packages:

   mount -t airootfs -o remount,size=4G /run/archiso/cowspace

3. Update the pacman package manager cache:

   pacman -Syy

4. Install the package:

   sudo pacman -S <package>

   Specify <package> — the package name. You can find the package name in the official Arch Linux repository.

From the AUR repository

Example of installing arcconf, a tool for managing a hardware RAID controller. You can install other tools from the AUR repository similarly.

1. Boot the server in Rescue recovery and diagnostics mode.

2. Mount the file system and expand the cowspace partition size, which is used for downloading packages:

   mount -t airootfs -o remount,size=4G /run/archiso/cowspace

3. Install the base-devel package — a base set of tools for working with packages further:

   sudo pacman -Syu base-devel

4. Install git:

   pacman -S git

5. Change to the directory for temporary file storage:

   cd /tmp

6. Clone the repository to install the package:

   git clone https://aur.archlinux.org/arcconf.git/

   Here https://aur.archlinux.org/arcconf.git/ — the repository to clone. You can find it on the package page in the Git Clone URL **** line.

7. Change to the arcconf directory:

   cd arcconf

8. Switch to the branch with the latest commit.

   git checkout 98153da254e10bb2655ad1c7e0e118b2dd7fd18c

   Here 98153da254e10bb2655ad1c7e0e118b2dd7fd18c — the commit ID. You can find it on the package page: click View PKGBUILD, go to the commit tab, and view the value in the commit **** line.

9. Create a user user with permissions for the /tmp/arcconf directory:

   useradd -m user
   sudo chown -R user /tmp/arcconf
   sudo chmod -R 755 /tmp/arcconf

10. Switch to the user user:

    su user

11. Run the makepkg tool; it will check dependencies and build the package in the current directory:

    makepkg

12. View the directory content:

    ls

    A list of package files will appear in the response. For example:

    arcconf-4.17.00.26540-1-x86_64.pkg.tar.zst        arcconf_v3_07_23980.zip  src
    arcconf_B26540.zip                                pkg
    arcconf-debug-4.17.00.26540-1-x86_64.pkg.tar.zst  PKGBUILD

    Here arcconf-4.17.00.26540-1-x86_64.pkg.tar.zst is the file name to install the tool.

13. Copy the file name for installation.

14. Finish the session with the user user:

    exit

15. Install arcconf:

    pacman -U <file_name>

    Specify <file_name> — the file name you copied in step 13.