Keep trimming when pct fstrim fails on one container

pct fstrim exits 255 when the container is locked, for example while a
backup runs ("CT is locked (backup)"). Under errexit the command
substitution ended the whole run there, before the output check below it
and before the remaining containers, and telemetry filed it as
"DPKG: Fatal internal error". Print the result and go on instead.

CHANGELOG.md

@@ -581,10 +581,12 @@ Exercise vigilance regarding copycat or coat-tailing sites that seek to exploit
 
 ### 💾 Core
 
-  - feat: add var_cmode to set the container console mode [@MickLesk](https://github.com/MickLesk) ([core#180](https://github.com/community-scripts/core/pull/180))
-- fix: restore npm when an interrupted update left it behind [@MickLesk](https://github.com/MickLesk) ([core#189](https://github.com/community-scripts/core/pull/189))
-- feat: find the assets of a renamed GitHub repo without the API [@MickLesk](https://github.com/MickLesk) ([core#188](https://github.com/community-scripts/core/pull/188))
+  - fix: pve-LXC: say when the container went away during its setup [@MickLesk](https://github.com/MickLesk) ([core#192](https://github.com/community-scripts/core/pull/192))
+- fix: treat Esc in a VM wizard dialog as leaving the script [@MickLesk](https://github.com/MickLesk) ([core#190](https://github.com/community-scripts/core/pull/190))
 - ref: count a container stopped during a detached install as an abort [@MickLesk](https://github.com/MickLesk) ([core#187](https://github.com/community-scripts/core/pull/187))
+- feat: find the assets of a renamed GitHub repo without the API [@MickLesk](https://github.com/MickLesk) ([core#188](https://github.com/community-scripts/core/pull/188))
+- fix: restore npm when an interrupted update left it behind [@MickLesk](https://github.com/MickLesk) ([core#189](https://github.com/community-scripts/core/pull/189))
+- feat: add var_cmode to set the container console mode [@MickLesk](https://github.com/MickLesk) ([core#180](https://github.com/community-scripts/core/pull/180))
 
 ## 2026-11-02
 

tools/pve/fstrim.sh

@@ -118,7 +118,8 @@ function trim_container() {
   fi
 
   local fstrim_output
-  fstrim_output=$(pct fstrim "$container" 2>&1)
+  # pct fstrim fails on a locked CT (e.g. a running backup); report it and go on.
+  fstrim_output=$(pct fstrim "$container" 2>&1) || true
   if echo "$fstrim_output" | grep -qi "not supported"; then
     echo -e "${RD}fstrim isnt supported on this storage!${CL}"
   elif echo "$fstrim_output" | grep -Eq '([0-9]+(\.[0-9]+)?\s*[KMGT]?B)'; then

vm/fedora-vm.sh

@@ -89,6 +89,13 @@ post_to_api_vm
 
 vm_select_storage "$HN"
 
+if ! command -v virt-customize &>/dev/null; then
+  msg_info "Installing libguestfs-tools"
+  $STD apt-get update
+  $STD apt-get install -y libguestfs-tools
+  msg_ok "Installed libguestfs-tools"
+fi
+
 msg_info "Retrieving the URL for the Fedora Cloud Base image"
 MIRROR="https://dl.fedoraproject.org/pub/fedora/linux/releases"
 FEDORA_RELEASE=$(curl -fsSL "$MIRROR/" 2>/dev/null | grep -oP 'href="\K[0-9]+(?=/")' | sort -rn | head -1)