Cannot enable the TUI: error opening terminal [TERM=<unset>]

[Heinrich Schuchardt]

I try to analyze a crash report on riscv64. I am connected to the system via ssh.

sudo DEBUGINFOD_VERBOSE=1 apport-retrace --gdb --sandbox system --cache ~/.cache/apport-retrace /var/crash/_usr_bin_qemu-x86_64-static.0.crash

In the opened gdb I try to show the source:

(gdb) lay src
Cannot enable the TUI: error opening terminal [TERM=<unset>]

My expectation is that gdb shows the source layout.

gdb works fine outside apport-retrace.

# echo $TERM
xterm-256color

[Benjamin Drung (bdrung)]

Which apport version do you use?

[Heinrich Schuchardt (xypron)]

I am on Lunar riscv64.

[Heinrich Schuchardt (xypron)]

# dpkg -s apport-retrace
Source: apport
Version: 2.26.0-0ubuntu2

[Heinrich Schuchardt (xypron)]

Adding variable TERM to environ is enough to solve the problem.

         apport.memdbg("before calling gdb")
+ environ['TERM'] = os.environ.get('TERM', '')
         subprocess.call(gdb_cmd, env=environ)

Now 'lay asm ' and lay 'regs' provide valuable information.

[Benjamin Drung (bdrung)]

Proposed fix: https://github.com/canonical/apport/pull/147

[Benjamin Drung (bdrung)]

https://github.com/canonical/apport/pull/147 got merged.

[Launchpad Janitor (janitor)]

This bug was fixed in the package apport - 2.26.1-0ubuntu2

---------------
apport (2.26.1-0ubuntu2) lunar; urgency=medium

  * fix(tests): Clear environment for test_run_as_real_user_no_sudo

apport (2.26.1-0ubuntu1) lunar; urgency=medium

  [ Benjamin Drung ]
  * New upstream bug-fix release.
    - SECURITY UPDATE: viewing an apport-cli crash with default pager could
      escalate privilege (LP: #2016023). Do not run sensible-pager as root
      if using sudo/pkexec.
    - Catch HTTPError in UserInterface.file_report (LP: #2008638)
    - Print proper error message if /proc/<pid> is gone (LP: #2008638)
    - Do not drop environment variables when calling GDB (LP: #2012374)
    - Fix parsing options with spaces in sources.list (LP: #1822712)
  * Disable Launchpad crash reports for 23.04 release

  [ Sebastien Bacher ]
  * Let subiquity collect the desktop installer details if available

 -- Benjamin Drung <email address hidden> Fri, 14 Apr 2023 00:17:27 +0200