** Description changed:
+ [Impact]
+
+ On Ubuntu 22.04, xrdp can fail to configure during install or upgrade:
+
+ Setting up xrdp (0.9.17-2ubuntu3) ...
+ ln: failed to create symbolic link '/etc/xrdp/cert.pem': File exists
+ dpkg: error processing package xrdp (--configure):
+ installed xrdp package post-installation script subprocess returned
error exit status 1
+
+ debian/xrdp.postinst guards default TLS cert/key creation with a single
+ "test -e /etc/xrdp/cert.pem":
+
+ test -e /etc/xrdp/cert.pem || (
+ make-ssl-cert generate-default-snakeoil
+ ln -s /etc/ssl/certs/ssl-cert-snakeoil.pem /etc/xrdp/cert.pem
+ ln -s /etc/ssl/private/ssl-cert-snakeoil.key /etc/xrdp/key.pem
+ )
+
+ This is not idempotent:
+
+ * test -e follows symlinks, so it is false for a dangling cert.pem symlink.
+ The block then runs, make-ssl-cert recreates the targets, and "ln -s ...
/etc/xrdp/cert.pem" fails with "File exists".
+ * If cert.pem is missing but key.pem already exists, the key.pem ln -s fails
the same way.
+
+ [Test Plan]
+
+ Run on each target series, comparing the maintainer script before and
+ after the patch.
+
+ Before the patch:
+
+ sudo apt-get update
+ sudo apt-get install -y ssl-cert xrdp
+ sudo rm -f /etc/ssl/certs/ssl-cert-snakeoil.pem
+ sudo rm -f /etc/ssl/private/ssl-cert-snakeoil.key
+ sudo mkdir -p /etc/xrdp
+ sudo ln -snf /etc/ssl/certs/ssl-cert-snakeoil.pem /etc/xrdp/cert.pem
+ sudo ln -snf /etc/ssl/private/ssl-cert-snakeoil.key /etc/xrdp/key.pem
+ sudo apt-get install -y --reinstall xrdp
+
+ Expected (buggy) result:
+
+ ln: failed to create symbolic link '/etc/xrdp/cert.pem': File exists
+
+ After the patch:
+
+ sudo apt-get install -y ssl-cert xrdp
+ sudo rm -f /etc/ssl/certs/ssl-cert-snakeoil.pem
+ sudo rm -f /etc/ssl/private/ssl-cert-snakeoil.key
+ sudo mkdir -p /etc/xrdp
+ sudo ln -snf /etc/ssl/certs/ssl-cert-snakeoil.pem /etc/xrdp/cert.pem
+ sudo ln -snf /etc/ssl/private/ssl-cert-snakeoil.key /etc/xrdp/key.pem
+ sudo apt-get install -y --reinstall xrdp
+ test -e /etc/xrdp/cert.pem
+ test -e /etc/xrdp/key.pem
+
+ Expected (fixed) result:
+
+ * Install/configure succeeds.
+ * /etc/xrdp/cert.pem and /etc/xrdp/key.pem exist.
+ * Reinstalling the package succeeds again.
+
+ Administrator-provided file preservation:
+
+ sudo rm -f /etc/xrdp/cert.pem /etc/xrdp/key.pem
+ echo custom-cert | sudo tee /etc/xrdp/cert.pem >/dev/null
+ echo custom-key | sudo tee /etc/xrdp/key.pem >/dev/null
+ sudo apt-get install -y --reinstall xrdp
+ grep -q custom-cert /etc/xrdp/cert.pem && grep -q custom-key
/etc/xrdp/key.pem
+
+ Expected: reconfigure succeeds and the custom cert/key files are left
+ untouched.
+
+ [Where problems could occur]
+
+ The change touches only debian/xrdp.postinst, in the default TLS cert/key
symlink creation.
+ It runs at "configure" and writes only /etc/xrdp/cert.pem and
/etc/xrdp/key.pem, so a regression could only appear at install/upgrade:
+
+ * default cert/key symlinks not created on a clean install
+ * an existing admin-provided cert/key file or symlink being overwritten
+
+ [Other Info]
+
+ Forwarded to Debian:
+ https://salsa.debian.org/debian-remote-team/xrdp/-/merge_requests/18
+
+ [Original Descption]
+
I can't upgrade xrdp on this computer
ProblemType: Package
DistroRelease: Ubuntu 22.04
Package: xrdp 0.9.17-2ubuntu3
ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30
Uname: Linux 5.15.0-27-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.8
Architecture: amd64
CasperMD5CheckResult: unknown
Date: Sat Jun 14 16:56:23 2025
DuplicateSignature:
- package:xrdp:0.9.17-2ubuntu3
- Setting up xrdp (0.9.17-2ubuntu3) ...
- ln: failed to create symbolic link '/etc/xrdp/cert.pem': File exists
- dpkg: error processing package xrdp (--configure):
- installed xrdp package post-installation script subprocess returned error
exit status 1
+ package:xrdp:0.9.17-2ubuntu3
+ Setting up xrdp (0.9.17-2ubuntu3) ...
+ ln: failed to create symbolic link '/etc/xrdp/cert.pem': File exists
+ dpkg: error processing package xrdp (--configure):
+ installed xrdp package post-installation script subprocess returned error
exit status 1
ErrorMessage: installed xrdp package post-installation script subprocess
returned error exit status 1
Python3Details: /usr/bin/python3.10, Python 3.10.12, python3-minimal,
3.10.6-1~22.04.1
PythonDetails: N/A
RebootRequiredPkgs: Error: path contained symlinks.
RelatedPackageVersions:
- dpkg 1.21.1ubuntu2.3
- apt 2.4.14
+ dpkg 1.21.1ubuntu2.3
+ apt 2.4.14
SourcePackage: xrdp
Title: package xrdp 0.9.17-2ubuntu3 failed to install/upgrade: installed xrdp
package post-installation script subprocess returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.xrdp.sesman.ini: 2022-05-05T23:10:13.436962
mtime.conffile..etc.xrdp.xrdp.ini: 2022-05-05T23:10:13.428962
** Changed in: xrdp (Ubuntu Jammy)
Assignee: (unassigned) => Seyeong Kim (seyeongkim)
** Changed in: xrdp (Ubuntu Resolute)
Assignee: (unassigned) => Seyeong Kim (seyeongkim)
** Changed in: xrdp (Ubuntu Noble)
Assignee: (unassigned) => Seyeong Kim (seyeongkim)
** Changed in: xrdp (Ubuntu Jammy)
Status: New => In Progress
** Changed in: xrdp (Ubuntu Noble)
Status: New => In Progress
** Changed in: xrdp (Ubuntu Resolute)
Status: New => In Progress
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https://bugs.launchpad.net/bugs/2114620
Title:
package xrdp 0.9.17-2ubuntu3 failed to install/upgrade: installed xrdp
package post-installation script subprocess returned error exit status
1
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