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docs: document Ubuntu 26.04 Rust Coreutils and sudo-rs, add INSTALL_GNU_COREUTILS build flag

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Co-authored-by: Theaxiom <57013+Theaxiom@users.noreply.github.com>
This commit is contained in:
copilot-swe-agent[bot]
2026-05-18 20:50:29 +00:00
committed by GitHub
co-authored by Theaxiom
parent 169e147321
commit 1a930ec955
4 changed files with 96 additions and 2 deletions
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image/prepare.sh
+28
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@@ -55,6 +55,34 @@ $minimal_apt_get_install software-properties-common
## Upgrade all packages.
apt-get dist-upgrade -y --no-install-recommends -o Dpkg::Options::="--force-confold"
## Ubuntu 26.04+ ships uutils-coreutils (Rust) and sudo-rs (Rust) by default.
## Optionally replace them with GNU Coreutils and traditional sudo when
## INSTALL_GNU_COREUTILS=1 is set at build time.
if grep -E '^ID=' /etc/os-release | grep -q ubuntu; then
UBUNTU_VERSION=$(grep '^VERSION_ID=' /etc/os-release | cut -d'"' -f2)
if dpkg --compare-versions "$UBUNTU_VERSION" ge "26.04" 2>/dev/null; then
if [ "${INSTALL_GNU_COREUTILS:-0}" -eq 1 ]; then
echo "*** Installing GNU Coreutils and traditional sudo to replace Rust variants..."
# Install GNU Coreutils if available (package name may vary by Ubuntu release).
# 'coreutils-gnu' is the expected package name for the GNU implementation
# when uutils-coreutils is the default.
if apt-cache show coreutils-gnu > /dev/null 2>&1; then
$minimal_apt_get_install coreutils-gnu
fi
# Install traditional sudo if available (package name may vary).
# 'sudo-traditional' or similar may be provided alongside 'sudo-rs'.
if apt-cache show sudo-traditional > /dev/null 2>&1; then
$minimal_apt_get_install sudo-traditional
elif apt-cache show sudo-classic > /dev/null 2>&1; then
$minimal_apt_get_install sudo-classic
fi
else
echo "*** Ubuntu 26.04 detected: using default uutils-coreutils (Rust) and sudo-rs (Rust)."
echo "*** Set INSTALL_GNU_COREUTILS=1 at build time to use GNU Coreutils and traditional sudo instead."
fi
fi
fi
## Fix locale.
case $(lsb_release -is) in
Ubuntu)