Ubuntu 23.10's codename is "Mantic Minotaur" and is expected to be released on 2023-10-12:

• https://launchpad.net/ubuntu/ series
• https://omgubuntu.co.uk/2023/04/ubuntu-23-10-codename-revealed
• https://9to5linux.com/ubuntu-23-10-mantic-minotaur-is-slated-for-release-on-october-12th-2023
• https://discourse.ubuntu.com/t/mantic-minotaur-release-schedule/34989

Ubuntu 23.10 pre-Release Notes:
https://discourse.ubuntu.com/t/mantic-minotaur-release-notes/35534

...contain an interesting hint about "offline" use of APT here:

Ubuntu Server
In some situations, it is acceptable to proceed with an offline install when the mirror is inaccessible. In this scenario, it is advised to use:

apt:
  fallback: offline-install

I'm assuming they're talking about cloud-init's apt: module here... ?

• https://cloudinit.readthedocs.io/en/latest/reference/modules.html

Related:

• "Restart the networking service" failing repeatedly (during IIAB install, and when ./iiab-network is run) [similar Debian 11 Bullseye VM has a strange DNS-like freezing issue] [QA Automation / testing cloud-init Multipass script example] #3568

Except for Lokole and KA Lite, LARGE-sized IIAB currently installs on the latest Ubuntu 23.10 pre-release:

iiab-diagnostics: http://sprunge.us/gbuH20?en

LARGE-sized IIAB installs flawlessly on the latest Ubuntu 23.10 on PHP 8.2 — except for Lokole:

http://sprunge.us/ewCukW?en

Another successful LARGE-sized IIAB install (without Lokole) for confirmation:

http://sprunge.us/G688L7?en

FYI AzuraCast (e.g. 0.19.0) does not yet work on the latest Ubuntu 23.10 pre-release:

TASK [azuracast : AzuraCast - Run the installer] ********************************************************************************************************************************************************************************************
fatal: [127.0.0.1]: FAILED! => {"changed": true, "cmd": "yes '' | /bin/bash docker.sh install", "delta": "0:00:03.745138", "end": "2023-08-17 15:22:15.996174", "msg": "non-zero return code", "rc": 100, "start": "2023-08-17 15:22:12.251036", "stderr": " sh -c apt-get update -qq >/dev/null\n sh -c DEBIAN_FRONTEND=noninteractive apt-get install -y -qq apt-transport-https ca-certificates curl >/dev/null\n sh -c install -m 0755 -d /etc/apt/keyrings\n sh -c curl -fsSL "https://download.docker.com/linux/ubuntu/gpg\" | gpg --dearmor --yes -o /etc/apt/keyrings/docker.gpg\n sh -c chmod a r /etc/apt/keyrings/docker.gpg\n sh -c echo "deb [arch=amd64 signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu mantic stable" > /etc/apt/sources.list.d/docker.list\n sh -c apt-get update -qq >/dev/null\nE: The repository 'https://download.docker.com/linux/ubuntu mantic Release' does not have a Release file.", "stderr_lines": [" sh -c apt-get update -qq >/dev/null", " sh -c DEBIAN_FRONTEND=noninteractive apt-get install -y -qq apt-transport-https ca-certificates curl >/dev/null", " sh -c install -m 0755 -d /etc/apt/keyrings", " sh -c curl -fsSL "https://download.docker.com/linux/ubuntu/gpg" | gpg --dearmor --yes -o /etc/apt/keyrings/docker.gpg", " sh -c chmod a r /etc/apt/keyrings/docker.gpg", " sh -c echo "deb [arch=amd64 signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu mantic stable" > /etc/apt/sources.list.d/docker.list", " sh -c apt-get update -qq >/dev/null", "E: The repository 'https://download.docker.com/linux/ubuntu mantic Release' does not have a Release file."], "stdout": "Checking installation requirements for AzuraCast...\n\u001b[32m[PASS]\u001b[0m Operating System: Linux\n\u001b[32m[PASS]\u001b[0m Architecture: x86_64\n\u001b[32m[PASS]\u001b[0m Command Present: curl\n\u001b[32m[PASS]\u001b[0m Command Present: awk\n\u001b[32m[PASS]\u001b[0m User Permissions\n\u001b[93m[WARN]\u001b[0m Installation Directory\n AzuraCast is not installed in /var/azuracast, as is recommended\n for most installations. This will not prevent AzuraCast from\n working, but you will need to update any instructions in our\n documentation to reflect your current directory:\n /opt/azuracast\n\u001b[32m[PASS]\u001b[0m All requirements met!\nDocker does not appear to be installed. Install Docker now? [Y/n] # Executing docker install script, commit: c2de0811708b6d9015ed1a2c80f02c9b70c8ce7b", "stdout_lines": ["Checking installation requirements for AzuraCast...", "\u001b[32m[PASS]\u001b[0m Operating System: Linux", "\u001b[32m[PASS]\u001b[0m Architecture: x86_64", "\u001b[32m[PASS]\u001b[0m Command Present: curl", "\u001b[32m[PASS]\u001b[0m Command Present: awk", "\u001b[32m[PASS]\u001b[0m User Permissions", "\u001b[93m[WARN]\u001b[0m Installation Directory", " AzuraCast is not installed in /var/azuracast, as is recommended", " for most installations. This will not prevent AzuraCast from", " working, but you will need to update any instructions in our", " documentation to reflect your current directory:", " /opt/azuracast", "\u001b[32m[PASS]\u001b[0m All requirements met!", "Docker does not appear to be installed. Install Docker now? [Y/n] # Executing docker install script, commit: c2de0811708b6d9015ed1a2c80f02c9b70c8ce7b"]}

Another successful LARGE-sized IIAB install (without Lokole) for confirmation:

https://dpaste.com/5XLKY2SMD