T-Gander/ProxmoxVEDHelperScripts
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Fix container locale, TERM and tty sizing

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Add a forced container env (_ct_env) exporting LC_ALL/LANG=C.UTF-8 and DEBIAN_FRONTEND to ensure commands (apt, sed, locale-gen, getent, tz setup) run reliably in fresh templates that lack generated locales. Use the env when running pct exec for locale setup, timezone symlink, DNS checks, and apt installs.

Improve terminal handling: set TERM=xterm-256color only for SSH sessions by appending a guarded block to /root/.bashrc, disable /etc/profile.d/vte.{sh,csh} by renaming them to avoid CSI 6n prompt garbage on LXC/noVNC consoles, and add /etc/profile.d/00-lxc-term-size.sh to force a sane stty rows/cols when the pseudo-tty reports 0x0. These changes prevent locale-related errors and stray CSI responses in LXC containers.
This commit is contained in:
CanbiZ (MickLesk)
2026-04-27 14:24:28 +02:00
parent 7a8b8e56ca
commit 2708b36416
2 changed files with 45 additions and 13 deletions
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41
misc/install.func
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@@ -1077,8 +1077,18 @@ EOF
# Configures Message of the Day and SSH settings
# ------------------------------------------------------------------------------
motd_ssh() {
# Set terminal to 256-color mode
grep -qxF "export TERM='xterm-256color'" /root/.bashrc 2>/dev/null || echo "export TERM='xterm-256color'" >>/root/.bashrc
# Set 256-color mode only for SSH sessions; LXC console gets TERM from agetty.
# Forcing TERM=xterm-256color on the LXC noVNC console can break readline's
# window-size detection and cause CSI 6n response leaks ("R;80R" garbage).
if ! grep -q '__cs_term_setup' /root/.bashrc 2>/dev/null; then
cat >>/root/.bashrc <<'EOF'
# __cs_term_setup: community-scripts terminal init
if [ -n "${SSH_CONNECTION:-}${SSH_TTY:-}" ]; then
export TERM='xterm-256color'
fi
EOF
fi
# Get OS information
local os_name="$OS_TYPE"
@@ -1206,11 +1216,28 @@ EOF
systemctl enable console-getty.service &>/dev/null || true
fi
# Fedora/RHEL: /etc/profile.d/vte.sh emits cursor-position queries (CSI 6n)
# whose responses leak into the shell input buffer, causing
# "R;80R: command not found" garbage on the first prompt. Disable it.
[[ -f /etc/profile.d/vte.sh ]] && chmod -x /etc/profile.d/vte.sh 2>/dev/null || true
[[ -f /etc/profile.d/vte.csh ]] && chmod -x /etc/profile.d/vte.csh 2>/dev/null || true
# Fedora/RHEL: /etc/profile.d/vte.sh sets a PROMPT_COMMAND that, combined
# with broken TIOCGWINSZ in LXC noVNC, causes CSI 6n responses to leak as
# "R;80R" garbage at the shell prompt. Disable by renaming (chmod -x is
# ineffective; /etc/profile sources by readability, not executable bit).
for _f in /etc/profile.d/vte.sh /etc/profile.d/vte.csh; do
[[ -f "$_f" ]] && mv "$_f" "${_f}.disabled" 2>/dev/null || true
done
# LXC pseudo-tty often reports winsize 0x0; bash readline then falls back
# to CSI 6n cursor-position queries whose responses leak as input. Force
# a sane default size at every shell start until a real size is detected.
cat >/etc/profile.d/00-lxc-term-size.sh <<'EOF'
# community-scripts: ensure sane terminal size in LXC console
if [ -t 0 ] && [ -t 1 ]; then
_sz=$(stty size 2>/dev/null)
if [ -z "$_sz" ] || [ "${_sz% *}" = "0" ]; then
stty rows 24 cols 80 2>/dev/null
fi
unset _sz
fi
EOF
chmod 644 /etc/profile.d/00-lxc-term-size.sh
systemctl daemon-reload
# Restart only what's currently active to avoid spawning duplicate gettys