I tried upgrade my 2-container forum, but it fails. Any ideas why?
x86_64 arch detected.
2.0.20260803-0122: Pulling from discourse/base
Digest: sha256:ab1e7217470759e63313a16bc5b71b9f2dd7d3ae8303286e5985f563ad12b7b3
Status: Image is up to date for discourse/base:2.0.20260803-0122
docker.io/discourse/base:2.0.20260803-0122
/usr/local/lib/ruby/gems/3.4.0/gems/pups-1.4.0/lib/pups.rb /usr/local/bin/pups --stdin
I, [2026-09-02T16:49:46.027794 #1] INFO -- : Reading from stdin
I, [2026-09-02T16:49:46.066073 #1] INFO -- : > thpoff echo "thpoff is installed!" thpoff is installed!
I, [2026-09-02T16:49:46.079514 #1] INFO -- : > /usr/local/bin/ruby -e 'if (ENV["DISCOURSE_SMTP_ADDRESS"] == "smtp.example.com" && ENV["DISCOURSE_SKIP_EMAIL_SETUP"] != "
1"); puts "Aborting! Mail is not configured!"; exit 1; end'
I, [2026-09-02T16:49:46.242618 #1] INFO -- : > /usr/local/bin/ruby -e 'if ENV["DISCOURSE_HOSTNAME"] == "discourse.example.com"; puts "Aborting! Domain is not configured!"; exit 1; end' I, [2026-09-02T16:49:46.351184 #1] INFO -- : > /usr/local/bin/ruby -e 'if (ENV["DISCOURSE_CDN_URL"] || "")[0..1] == "//"; puts "Aborting! CDN must have a protocol specified. Once fixed you should rebake your posts now to correct all posts."; exit 1; end' I, [2026-09-02T16:49:46.497030 #1] INFO -- : > rm -f /etc/cron.d/anacron I, [2026-09-02T16:49:46.504864 #1] INFO -- : File > /etc/cron.d/anacron chmod: chown: I, [2026-09-02T16:49:46.512848 #1] INFO -- : File > /etc/runit/1.d/copy-env chmod: +x chown: I, [2026-09-02T16:49:46.525056 #1] INFO -- : File > /etc/service/unicorn/run chmod: +x chown:
I, [2026-09-02T16:49:46.533676 #1] INFO -- : File > /etc/service/nginx/run chmod: +x chown:
I, [2026-09-02T16:49:46.542104 #1] INFO -- : File > /etc/runit/3.d/01-nginx chmod: +x chown:
I, [2026-09-02T16:49:46.557772 #1] INFO -- : File > /etc/runit/3.d/02-unicorn chmod: +x chown:
I, [2026-09-02T16:49:46.566700 #1] INFO -- : > cd /var/www/discourse && sudo -H -E -u discourse git clean -f
I, [2026-09-02T16:49:46.797286 #1] INFO -- : > cd /var/www/discourse && sudo -H -E -u discourse bash -c '
set -o errexit
git fetch --tags --prune-tags --prune --force origin
if [[ $(git symbolic-ref --short HEAD) == latest ]] ; then
git pull
else
git -c advice.detachedHead=false checkout latest
fi
'
fatal: could not read Username for 'https://github.com': No such device or address
fatal: expected flush after ref listing
FAILED
--------------------
Pups::ExecError: cd /var/www/discourse && sudo -H -E -u discourse bash -c '
set -o errexit
git fetch --tags --prune-tags --prune --force origin
if [[ $(git symbolic-ref --short HEAD) == latest ]] ; then
git pull
else
git -c advice.detachedHead=false checkout latest
fi
' failed with return #<Process::Status: pid 34 exit 128>
Location of failure: /usr/local/lib/ruby/gems/3.4.0/gems/pups-1.4.0/lib/pups/exec_command.rb:138:in 'Pups::ExecCommand#spawn'
exec failed with the params {"cd" => "$home", "tag" => "build", "hook" => "code", "cmd" => ["sudo -H -E -u discourse git clean -f", "sudo -H -E -u discourse bash -c '\n
set -o errexit\n git fetch --tags --prune-tags --prune --force origin\n if [[ $(git symbolic-ref --short HEAD) == $version ]] ; then\n git pull\n else\n gi
t -c advice.detachedHead=false checkout $version\n fi\n'", "sudo -H -E -u discourse git config user.discourse-version $version", "mkdir -p tmp", "chown discourse:www-da
ta tmp", "mkdir -p tmp/pids", "mkdir -p tmp/sockets", "touch tmp/.gitkeep", "mkdir -p /shared/log/rails", "bash -c \"touch -a /shared/log/ra
ils/{production,production_errors,unicorn.stdout,unicorn.stderr,sidekiq}.log\"", "bash -c \"ln -s /shared/log/rails/{production,production_errors,unicorn.st
dout,unicorn.stderr,sidekiq}.log $home/log\"", "bash -c \"mkdir -p /shared/{uploads,backups}\"", "bash -c \"ln -s /shared/{uploads,backups} $home/
public\"", "bash -c \"mkdir -p /shared/tmp/{backups,restores}\"", "bash -c \"ln -s /shared/tmp/{backups,restores} $home/tmp\"", "chown -R discours
e:www-data /shared/log/rails /shared/uploads /shared/backups /shared/tmp", "[ ! -d public/plugins ] || find public/plugins/ -maxdepth 1 -xtype l -delete"]}
bootstrap failed with exit code 128
** FAILED TO BOOTSTRAP ** please scroll up and look for earlier error messages, there may be more than one.
./discourse-doctor may help diagnose the problem.
f21423e74889e97cf80d8d237c4ca8bb1d4674e6e3a0a30527d1b4394d5d8c98
. Oh, and I will definitely take a site backup right NOW! 
Thank you for raising this. We have shared this with our internal teams to investigate - if we have any updates we will post here and in appropriate discussions 