I'm getting the following error since I've updated the installer ISO image from the Ubuntu 20.04.3 LTS to Ubuntu 20.04.4 LTS:
```
Mar 08 11:08:13 ubuntu-server subiquity_event.1858[1858]: subiquity/ErrorReporter/1646737692.998598814.unknown/add_info: written to /var/crash/1646737692.998598814.unknown.crash
Mar 08 11:08:13 ubuntu-server subiquity_event.1858[1858]: subiquity/Mirror/cmd-apt-config: curtin command apt-config
Mar 08 11:08:12 ubuntu-server subiquity_event.1858[1858]: subiquity/ErrorReporter/1646737692.998598814.unknown/add_info
Mar 08 11:08:12 ubuntu-server subiquity_log.1858[2141]: 'RELEASE'
Mar 08 11:08:12 ubuntu-server subiquity_log.1858[2141]: KeyError: 'RELEASE'
Mar 08 11:08:12 ubuntu-server subiquity_log.1858[2141]: return str(selected_params[key])
Mar 08 11:08:12 ubuntu-server subiquity_log.1858[2141]: File "/snap/subiquity/3119/lib/python3.8/site-packages/curtin/util.py", line 1191, in replacer
Mar 08 11:08:12 ubuntu-server subiquity_log.1858[2141]: return BASIC_MATCHER.sub(replacer, content)
Mar 08 11:08:12 ubuntu-server subiquity_log.1858[2141]: File "/snap/subiquity/3119/lib/python3.8/site-packages/curtin/util.py", line 1193, in basic_template_render
Mar 08 11:08:12 ubuntu-server subiquity_log.1858[2141]: return basic_template_render(content, params)
Mar 08 11:08:12 ubuntu-server subiquity_log.1858[2141]: File "/snap/subiquity/3119/lib/python3.8/site-packages/curtin/util.py", line 1203, in render_string
Mar 08 11:08:12 ubuntu-server subiquity_log.1858[2141]: entry.uri = util.render_string(entry.uri, mirrors)
Mar 08 11:08:12 ubuntu-server subiquity_log.1858[2141]: File "/snap/subiquity/3119/lib/python3.8/site-packages/curtin/commands/apt_config.py", line 255, in update_mirrors
Mar 08 11:08:12 ubuntu-server subiquity_log.1858[2141]: entries = update_mirrors(entries, mirrors)
Mar 08 11:08:12 ubuntu-server subiquity_log.1858[2141]: File "/snap/subiquity/3119/lib/python3.8/site-packages/curtin/commands/apt_config.py", line 354, in generate_sources_list
Mar 08 11:08:12 ubuntu-server subiquity_log.1858[2141]: generate_sources_list(cfg, release, mirrors, target)
Mar 08 11:08:12 ubuntu-server subiquity_log.1858[2141]: File "/snap/subiquity/3119/lib/python3.8/site-packages/curtin/commands/apt_config.py", line 77, in handle_apt
Mar 08 11:08:12 ubuntu-server subiquity_log.1858[2141]: handle_apt(apt_cfg, target)
Mar 08 11:08:12 ubuntu-server subiquity_log.1858[2141]: File "/snap/subiquity/3119/lib/python3.8/site-packages/curtin/commands/apt_config.py", line 663, in apt_command
Mar 08 11:08:12 ubuntu-server subiquity_log.1858[2141]: ret = args.func(args)
Mar 08 11:08:12 ubuntu-server subiquity_log.1858[2141]: File "/snap/subiquity/3119/lib/python3.8/site-packages/curtin/commands/main.py", line 202, in main
Mar 08 11:08:12 ubuntu-server subiquity_log.1858[2141]: Traceback (most recent call last):
Mar 08 11:08:12 ubuntu-server curtin_event.1858.1[2141]: finish: cmd-apt-config: FAIL: curtin command apt-config
Mar 08 11:08:12 ubuntu-server subiquity_log.1858[2141]: finish: cmd-apt-config: FAIL: curtin command apt-config
Mar 08 11:08:12 ubuntu-server systemd[1]: tmp-tmpzgi4knbz-mount-dev.mount: Succeeded.
```
I'm using Packer (https://www.packer.io/) to perform an automated installation so nothing else has changed (and if I downgrade to Ubuntu 20.04.3 LTS everything works again).
The relevant part of my Ubuntu autoinstall configuration:
```
apt:
primary:
- arches: [default]
uri: "http://ubuntu.my-company.tld"
sources_list: | # written by curtin custom template
deb $MIRROR/$RELEASE $RELEASE main restricted
deb $MIRROR/$RELEASE-updates $RELEASE-updates main restricted
deb $MIRROR/$RELEASE-security $RELEASE-security main restricted
deb $MIRROR/$RELEASE $RELEASE universe
deb $MIRROR/$RELEASE-updates $RELEASE-updates universe
deb $MIRROR/$RELEASE-security $RELEASE-security universe
```
I'm getting the following error since I've updated the installer ISO image from the Ubuntu 20.04.3 LTS to Ubuntu 20.04.4 LTS: event.1858[ 1858]: subiquity/ ErrorReporter/ 1646737692. 998598814. unknown/ add_info: written to /var/crash/ 1646737692. 998598814. unknown. crash event.1858[ 1858]: subiquity/ Mirror/ cmd-apt- config: curtin command apt-config event.1858[ 1858]: subiquity/ ErrorReporter/ 1646737692. 998598814. unknown/ add_info log.1858[ 2141]: 'RELEASE' log.1858[ 2141]: KeyError: 'RELEASE' log.1858[ 2141]: return str(selected_ params[ key]) log.1858[ 2141]: File "/snap/ subiquity/ 3119/lib/ python3. 8/site- packages/ curtin/ util.py" , line 1191, in replacer log.1858[ 2141]: return BASIC_MATCHER. sub(replacer, content) log.1858[ 2141]: File "/snap/ subiquity/ 3119/lib/ python3. 8/site- packages/ curtin/ util.py" , line 1193, in basic_template_ render log.1858[ 2141]: return basic_template_ render( content, params) log.1858[ 2141]: File "/snap/ subiquity/ 3119/lib/ python3. 8/site- packages/ curtin/ util.py" , line 1203, in render_string log.1858[ 2141]: entry.uri = util.render_ string( entry.uri, mirrors) log.1858[ 2141]: File "/snap/ subiquity/ 3119/lib/ python3. 8/site- packages/ curtin/ commands/ apt_config. py", line 255, in update_mirrors log.1858[ 2141]: entries = update_ mirrors( entries, mirrors) log.1858[ 2141]: File "/snap/ subiquity/ 3119/lib/ python3. 8/site- packages/ curtin/ commands/ apt_config. py", line 354, in generate_ sources_ list log.1858[ 2141]: generate_ sources_ list(cfg, release, mirrors, target) log.1858[ 2141]: File "/snap/ subiquity/ 3119/lib/ python3. 8/site- packages/ curtin/ commands/ apt_config. py", line 77, in handle_apt log.1858[ 2141]: handle_apt(apt_cfg, target) log.1858[ 2141]: File "/snap/ subiquity/ 3119/lib/ python3. 8/site- packages/ curtin/ commands/ apt_config. py", line 663, in apt_command log.1858[ 2141]: ret = args.func(args) log.1858[ 2141]: File "/snap/ subiquity/ 3119/lib/ python3. 8/site- packages/ curtin/ commands/ main.py" , line 202, in main log.1858[ 2141]: Traceback (most recent call last): event.1858. 1[2141] : finish: cmd-apt-config: FAIL: curtin command apt-config log.1858[ 2141]: finish: cmd-apt-config: FAIL: curtin command apt-config -mount- dev.mount: Succeeded.
```
Mar 08 11:08:13 ubuntu-server subiquity_
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Mar 08 11:08:12 ubuntu-server curtin_
Mar 08 11:08:12 ubuntu-server subiquity_
Mar 08 11:08:12 ubuntu-server systemd[1]: tmp-tmpzgi4knbz
```
I'm using Packer (https:/ /www.packer. io/) to perform an automated installation so nothing else has changed (and if I downgrade to Ubuntu 20.04.3 LTS everything works again).
The relevant part of my Ubuntu autoinstall configuration: ubuntu. my-company. tld" $RELEASE- updates $RELEASE-updates main restricted $RELEASE- security $RELEASE-security main restricted
```
apt:
primary:
- arches: [default]
uri: "http://
sources_list: | # written by curtin custom template
deb $MIRROR/$RELEASE $RELEASE main restricted
deb $MIRROR/
deb $MIRROR/
deb $MIRROR/$RELEASE $RELEASE universe $RELEASE- updates $RELEASE-updates universe $RELEASE- security $RELEASE-security universe
deb $MIRROR/
deb $MIRROR/
```
I've based that on the following example configuration: /github. com/canonical/ curtin/ blob/600d6a19e2 6d773d1c4efae87 4e8c8785d0e3196 /examples/ apt-source. yaml#L118
https:/