diff --git a/project/blog/routes.py b/project/blog/routes.py index 4fc2679..87b1efb 100644 --- a/project/blog/routes.py +++ b/project/blog/routes.py @@ -25,6 +25,7 @@ "oecd-recommendations", "data-retention-legislation-eu", "gdpr", + "noble", ] diff --git a/project/blog/templates/blog/blog.html b/project/blog/templates/blog/blog.html index 8f33ea9..5cb2502 100644 --- a/project/blog/templates/blog/blog.html +++ b/project/blog/templates/blog/blog.html @@ -7,7 +7,20 @@ {% block content %}
-
+
+ Entropy +
+ +

Upgrading to Noble Numbat

 +

For a change, I decided to try the do-release-upgrade script. Ugh.

+

Published on Sept 13, 2024

+
+
+ +
EntropyUpgrading to Noble Numbat +{% endblock %} + +{% block date %} +

Published on Sept 13, 2024

+{% endblock %} + +{% block image %} +Integration +{% endblock %} + +{% block article %} +

For a change, I decided to try the do-release-upgrade script. Ugh.

+ +

Prelims

+
+sudo ufw allow 1022/tcp
+sudo apt-install update-manager-core
+
+
+ +

Run script

+ +
sudo do-release-upgrade
+ +

It was at it all night and exited with error. My system is still running though, so I am not rebooting. No way. +Reading online I learn many people ended without desktop and with other problems, +so I spun up another terminal to drop back to ...

+ +

The normal way

+ +
nina@tardis:~$ sudo apt-get update
+sudo: unable to resolve host tardis: Name or service not known
+
+nina@tardis:~$ sudo apt-get dist-upgrade
+sudo: unable to resolve host tardis: Name or service not known
+ +

Huh? The system lost my hostname as one of the results of the scripted attempt. Checking ...

+ +
nina@tardis:~$ $hostname
+nina@tardis:~$ cat /etc/hostname
+tardis
+nina@tardis:~$ cat /etc/hosts
+127.0.0.1	localhost
+127.0.1.1	missy
+
+# The following lines are desirable for IPv6 capable hosts
+::1     ip6-localhost ip6-loopback
+fe00::0 ip6-localnet
+ff00::0 ip6-mcastprefix
+ff02::1 ip6-allnodes
+ff02::2 ip6-allrouters
+ +

Okay, add 127.0.0.1 tardis to /etc/hosts, just under 127.0.0.1 localhost in /etc/hosts.

+ +

And continue with:

+ +
nina@tardis:~$ sudo apt-get dist-upgrade
+ +

Signal desktop

+ +
Err:2 https://updates.signal.org/desktop/apt xenial/main amd64 signal-desktop amd64 7.24.1
+    Error reading from server - read (5: Input/output error) [IP: 172.64.155.138 443]
+Fetched 1 280 kB in 18min 13s (1 171 B/s)
+E: Failed to fetch https://updates.signal.org/desktop/apt/pool/s/signal-desktop/signal-desktop_7.24.1_amd64.deb
+    Error reading from server - read (5: Input/output error) [IP: 172.64.155.138 443]
+E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
+ +

Temporarily removed the package, fully expecting to re-install it later again when I have more time. Still runs on phone, +so not a problem, the desktop was only additional anyway.

+ +

Chromium snap blocks

+ +

My dist-upgrade process kept hanging on the chromium snap and did not move beyond it.

+ +
Errors were encountered while processing:
+ /tmp/apt-dpkg-install-MK7qUb/000-chromium-browser_2%3a1snap1-0ubuntu2_amd64.deb
+E: Sub-process /usr/bin/dpkg returned an error code (1)
+ +

Trying to install it separately I got more information:

+ +
The following packages have unmet dependencies.
+ chromium-browser-l10n : Depends: chromium-browser (>= 2:1snap1-0ubuntu2) but 1:85.0.4183.83-0ubuntu2.22.04.1 is installed
+ +

I lost my temper and because I hardly ever use it, I first purged chromium-browser-l10n, then +chromium-browser, and ran the dist-upgrade again. Now it finally moved on.

+ +

Python warnings

+ +

In Python, backslashes are used to introduce special character sequences known as escape sequences. For example, +the escape sequence ' ' can represent a newline character, and '\t' a tab. But if a backslash is followed by +an invalid character, it raises a warning.

+ +

In general, a warning does not halt program execution, but it is essential to address these warnings, as they can +indicate potential issues with the code. Ignoring these warnings can lead to unintended consequences, such as +incorrect string formatting, unexpected behaviour, or even security vulnerabilities.

+ +

I encountered these, you will encounter yours:

+ +

python3-ipywidgets

+
Setting up python3-ipywidgets (8.1.1-2) ...
+/usr/lib/python3/dist-packages/ipywidgets/widgets/tests/test_traits.py:61: SyntaxWarning: invalid escape sequence '\.'
+  'var(--my-color-\.)', # CSS variable with escaped characters
+  ...
+ +

This package contains interactive widgets for the Jupyter + notebook (Python 3) [universe].

+ +

Because I do not expect to use widgets in the near future, I removed the widgets package. If ever I need them, I will +install what exists then.

+ +

python3-future

+ +
Unpacking python3-future (0.18.2-6ubuntu2) over (0.18.2-6ubuntu2) ...
+Setting up python3-future (0.18.2-6ubuntu2) ...
+/usr/lib/python3/dist-packages/future/backports/email/_header_value_parser.py:66
+2: SyntaxWarning: invalid escape sequence '\(''(', '\(').replace(
+/usr/lib/python3/dist-packages/future/backports/email/_header_value_parser.py:66
+3: SyntaxWarning: invalid escape sequence '\)'')', '\)')
+/usr/lib/python3/dist-packages/future/backports/email/_header_value_parser.py:13
+...
+[snip]
+...
+  _queryprog = re.compile('^(.*)\?([^?]*)$')
+/usr/lib/python3/dist-packages/past/types/oldstr.py:23:
+    SyntaxWarning: invalid escape sequence '\d'
+  """
+
+ +

This snippet shows warnings for clean single-source support for Python 3 + and 2 - Python 3.x.

+ +

python3-future has been removed from Debian. Future is not compatible with Python 3.12 and many +projects have been or are deprecating support for Python 2.7 and Python 3.5. I removed the offending package +and hopefully will not have a problem. Fingers crossed.

+ +

bleachbit

+ +
Setting up bleachbit (4.6.0-3) ...
+/usr/share/bleachbit/bleachbit/Action.py:42:
+    SyntaxWarning: invalid escape sequence '\['return re.search('[?*\[\]]', s) is not None
+/usr/share/bleachbit/bleachbit/Cleaner.py:402:
+    SyntaxWarning: invalid escape sequence '\W'
+ +

I kept bleachbit as I use it a lot.

+ +

os-prober

+ +
Warning: os-prober will not be executed to detect other bootable partitions.
+Systems on them will not be added to the GRUB boot configuration.
+Check GRUB_DISABLE_OS_PROBER documentation entry.
+Adding boot menu entry for UEFI Firmware Settings ...
+done
+ +

The OS_prober feature has been + disabled by default since GRUB 2.06, the version Ubuntu 22.04 LTS shipped with. A choice by upstream to +address possible security issues with the OS-detecting feature.

+ +

You can add GRUB_DISABLE_OS_PROBER=false to the first section in /etc/default/grub, save, +and then run sudo update-grub to detect your other systems.

+ +

Check upgrade was done

+ +
nina@tardis:~$ lsb_release -a
+No LSB modules are available.
+Distributor ID:	Ubuntu
+Description:	Ubuntu 24.04.1 LTS
+Release:	24.04
+Codename:	noble
+ +

dkms

+ +
Processing triggers for linux-image-6.8.0-44-generic (6.8.0-44.44) ...
+/etc/kernel/postinst.d/dkms:
+ * dkms: running auto installation service for kernel 6.8.0-44-generic
+ * dkms: autoinstall for kernel 6.8.0-44-generic
+   ...done.
+ +

The kernel may be missing a module or two (wooops, them were not compiled). Use this script to rebuild every +dkms-controlled module for every installed kernel. Name it dkmsbuildall.sh for example.

+ +
nina@tardis:~$ cd /usr/local/sbin
+nina@tardis:/usr/local/sbin$ sudo vi dkmsbuildall.sh
+[sudo] password for nina:
+nina@tardis:/usr/local/sbin$ cat dkmsbuildall.sh
+#!/bin/bash
+ls -d /usr/src/linux-headers-* \
+ | sed -e 's/.*linux-headers-//' \
+ | grep generic \
+ | sort -V \
+ | tac \
+ | xargs -n1 /usr/lib/dkms/dkms_autoinstaller start
+nina@tardis:/usr/local/sbin$
+ +

Modify the file permissions to allow execution of the script, and execute:

+ +

+nina@tardis:/usr/local/sbin$ sudo chmod u+x dkmsbuildall.sh
+nina@tardis:/usr/local/sbin$ sudo ./dkmsbuildall.sh
+ * dkms: running auto installation service for kernel 6.8.0-44-generic
+ * dkms: autoinstall for kernel 6.8.0-44-generic                         [ OK ]
+ * dkms: running auto installation service for kernel 6.8.0-40-generic
+ * dkms: autoinstall for kernel 6.8.0-40-generic                         [ OK ]
+ * dkms: running auto installation service for kernel 6.5.0-44-generic
+ * dkms: autoinstall for kernel 6.5.0-44-generic                         [ OK ]
+ * dkms: running auto installation service for kernel 6.2.0-39-generic
+ * dkms: autoinstall for kernel 6.2.0-39-generic                         [ OK ]
+ * dkms: running auto installation service for kernel 5.15.0-119-generic
+ * dkms: autoinstall for kernel 5.15.0-119-generic                       [ OK ]
+
+ +

Ubuntu desktop

+ +

What desktop I am using:

+ +
nina@tardis:~$ ls /usr/bin/*session
+/usr/bin/dbus-run-session  /usr/bin/gnome-session
+
+ +

Just to be sure, reinstall the necessaries:

+ +
nina@tardis:~$ sudo apt-get install --reinstall gnome-terminal gnome-shell-ubuntu-extensions gnome-shell-extensions
+...
+[snip]
+...
+The following additional packages will be installed:
+  chrome-gnome-shell gir1.2-gtop-2.0 gnome-browser-connector
+  gnome-shell-extension-prefs
+Suggested packages:
+  chromium | chromium-browser
+The following NEW packages will be installed
+  chrome-gnome-shell gir1.2-gtop-2.0 gnome-browser-connector
+  gnome-shell-extension-prefs gnome-shell-extensions
+  gnome-shell-ubuntu-extensions
+0 to upgrade, 6 to newly install, 1 reinstalled, 0 to remove and 1 not to upgrade.
+Need to get 208 kB/425 kB of archives.
+After this operation, 1 262 kB of additional disk space will be used.
+Do you want to continue? [Y/n] Y
+...
+
+ +

And:

+ +
nina@tardis:~$ sudo apt-get install --reinstall ubuntu-desktop
+Reading package lists... Done
+Building dependency tree... Done
+Reading state information... Done
+The following packages were automatically installed and are no longer required:
+  ...
+Use 'sudo apt autoremove' to remove them.
+The following additional packages will be installed:
+  ubuntu-advantage-tools
+The following packages will be upgraded:
+  ubuntu-advantage-tools
+1 to upgrade, 0 to newly install, 1 reinstalled, 0 to remove and 1 not to upgrade.
+Need to get 0 B/13,4 kB of archives.
+After this operation, 3 072 B disk space will be freed.
+Do you want to continue? [Y/n] Y
+...
+
+ +

Reboot

+ +

Do it, and keep fingers crossed.

+ +nina@tardis:~$ sudo reboot + +

Aftermath

+ +

Close port:

+ +
nina@tardis:~$ sudo ufw delete 1022/tcp
+ +

Remove crud

+ +nina@tardis:~$ sudo apt autoremove + +

Upgrading PostgreSQL

+ +

Okay, this one is normal after a major PostgreSQL upgrade.

+ +

+Creating new PostgreSQL cluster 16/main ...
+/usr/lib/postgresql/16/bin/initdb -D /var/lib/postgresql/16/main --auth-local pe
+er --auth-host scram-sha-256 --no-instructions
+The files belonging to this database system will be owned by user "postgres".
+This user must also own the server process.
+
+The database cluster will be initialized with this locale configuration:
+  provider:    libc
+  LC_COLLATE:  en_US.UTF-8
+  LC_CTYPE:    en_US.UTF-8
+  LC_MESSAGES: en_US.UTF-8
+  LC_MONETARY: fr_FR.UTF-8
+  LC_NUMERIC:  fr_FR.UTF-8
+  LC_TIME:     fr_FR.UTF-8
+The default database encoding has accordingly been set to "UTF8".
+The default text search configuration will be set to "english".
+
+Data page checksums are disabled.
+
+fixing permissions on existing directory /var/lib/postgresql/16/main ... ok
+creating subdirectories ... ok
+selecting dynamic shared memory implementation ... posix
+selecting default max_connections ... 100
+selecting default shared_buffers ... 128MB
+selecting default time zone ... Europe/Paris
+creating configuration files ... ok
+running bootstrap script ... ok
+performing post-bootstrap initialization ... ok
+syncing data to disk ... ok
+
+ +

That is, of course, not the end of the story. + Been there, done that several times already, ate the t-shirts. Did not upgrade from 14 to 15 yet even.

+ +

Now the current clusters will have two version of postgresql, in my case 14 and 16 because I could not be bothered to do the data upgrade to 15:

+ +
nina@tardis:~$ sudo pg_lsclusters
+[sudo] password for nina:
+Ver Cluster Port Status Owner    Data directory              Log file
+14  main    5432 online postgres /var/lib/postgresql/14/main /var/log/postgresql/postgresql-14-main.log
+16  main    5433 online postgres /var/lib/postgresql/16/main /var/log/postgresql/postgresql-16-main.log
+
+ +

Stop the new version:

+ +
nina@tardis:~$ sudo pg_dropcluster 16 main --stop
+ +

Start the upgrade process:

+ +
nina@tardis:~$ sudo pg_upgradecluster 14 main
+ +

Monitor the process, and when done without problems, remove the old version:

+ +
nina@tardis:~$ sudo pg_dropcluster 14 main
+ +

Purge the old package:

+ +
nina@tardis:~$ sudo apt purge postgresql-14 postgresql-client-14
+ +

Double-check the current clusters:

+ +
nina@tardis:~$ sudo pg_lsclusters
+ +

Sigh

+ +

Big one.

+ +{% endblock %} \ No newline at end of file diff --git a/project/build/blog/index.html b/project/build/blog/index.html index c8b7fc1..2fd12f7 100644 --- a/project/build/blog/index.html +++ b/project/build/blog/index.html @@ -44,7 +44,20 @@

Ty Myrddin Home

-
+
+ Entropy +
+ +

Upgrading to Noble Numbat

 +

For a change, I decided to try the do-release-upgrade script. Ugh.

+

Published on Sept 13, 2024

+
+
+ +
Entropy + + + + + + Unseen University + + + + + + + + + + + + + + + + + + + + + + +
+

Ty Myrddin Home

+ +
+ +
+ + +
+
+ +

Upgrading to Noble Numbat

+ + +

by Ty Myrddin

+ + +

Published on Sept 13, 2024

+ +
+ +
+ +Integration + +
+ +
+ +

For a change, I decided to try the do-release-upgrade script. Ugh.

+ +

Prelims

+
+sudo ufw allow 1022/tcp
+sudo apt-install update-manager-core
+
+
+ +

Run script

+ +
sudo do-release-upgrade
+ +

It was at it all night and exited with error. My system is still running though, so I am not rebooting. No way. +Reading online I learn many people ended without desktop and with other problems, +so I spun up another terminal to drop back to ...

+ +

The normal way

+ +
nina@tardis:~$ sudo apt-get update
+sudo: unable to resolve host tardis: Name or service not known
+
+nina@tardis:~$ sudo apt-get dist-upgrade
+sudo: unable to resolve host tardis: Name or service not known
+ +

Huh? The system lost my hostname as one of the results of the scripted attempt. Checking ...

+ +
nina@tardis:~$ $hostname
+nina@tardis:~$ cat /etc/hostname
+tardis
+nina@tardis:~$ cat /etc/hosts
+127.0.0.1	localhost
+127.0.1.1	missy
+
+# The following lines are desirable for IPv6 capable hosts
+::1     ip6-localhost ip6-loopback
+fe00::0 ip6-localnet
+ff00::0 ip6-mcastprefix
+ff02::1 ip6-allnodes
+ff02::2 ip6-allrouters
+ +

Okay, add 127.0.0.1 tardis to /etc/hosts, just under 127.0.0.1 localhost in /etc/hosts.

+ +

And continue with:

+ +
nina@tardis:~$ sudo apt-get dist-upgrade
+ +

Signal desktop

+ +
Err:2 https://updates.signal.org/desktop/apt xenial/main amd64 signal-desktop amd64 7.24.1
+    Error reading from server - read (5: Input/output error) [IP: 172.64.155.138 443]
+Fetched 1 280 kB in 18min 13s (1 171 B/s)
+E: Failed to fetch https://updates.signal.org/desktop/apt/pool/s/signal-desktop/signal-desktop_7.24.1_amd64.deb
+    Error reading from server - read (5: Input/output error) [IP: 172.64.155.138 443]
+E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
+ +

Temporarily removed the package, fully expecting to re-install it later again when I have more time. Still runs on phone, +so not a problem, the desktop was only additional anyway.

+ +

Chromium snap blocks

+ +

My dist-upgrade process kept hanging on the chromium snap and did not move beyond it.

+ +
Errors were encountered while processing:
+ /tmp/apt-dpkg-install-MK7qUb/000-chromium-browser_2%3a1snap1-0ubuntu2_amd64.deb
+E: Sub-process /usr/bin/dpkg returned an error code (1)
+ +

Trying to install it separately I got more information:

+ +
The following packages have unmet dependencies.
+ chromium-browser-l10n : Depends: chromium-browser (>= 2:1snap1-0ubuntu2) but 1:85.0.4183.83-0ubuntu2.22.04.1 is installed
+ +

I lost my temper and because I hardly ever use it, I first purged chromium-browser-l10n, then +chromium-browser, and ran the dist-upgrade again. Now it finally moved on.

+ +

Python warnings

+ +

In Python, backslashes are used to introduce special character sequences known as escape sequences. For example, +the escape sequence ' ' can represent a newline character, and '\t' a tab. But if a backslash is followed by +an invalid character, it raises a warning.

+ +

In general, a warning does not halt program execution, but it is essential to address these warnings, as they can +indicate potential issues with the code. Ignoring these warnings can lead to unintended consequences, such as +incorrect string formatting, unexpected behaviour, or even security vulnerabilities.

+ +

I encountered these, you will encounter yours:

+ +

python3-ipywidgets

+
Setting up python3-ipywidgets (8.1.1-2) ...
+/usr/lib/python3/dist-packages/ipywidgets/widgets/tests/test_traits.py:61: SyntaxWarning: invalid escape sequence '\.'
+  'var(--my-color-\.)', # CSS variable with escaped characters
+  ...
+ +

This package contains interactive widgets for the Jupyter + notebook (Python 3) [universe].

+ +

Because I do not expect to use widgets in the near future, I removed the widgets package. If ever I need them, I will +install what exists then.

+ +

python3-future

+ +
Unpacking python3-future (0.18.2-6ubuntu2) over (0.18.2-6ubuntu2) ...
+Setting up python3-future (0.18.2-6ubuntu2) ...
+/usr/lib/python3/dist-packages/future/backports/email/_header_value_parser.py:66
+2: SyntaxWarning: invalid escape sequence '\(''(', '\(').replace(
+/usr/lib/python3/dist-packages/future/backports/email/_header_value_parser.py:66
+3: SyntaxWarning: invalid escape sequence '\)'')', '\)')
+/usr/lib/python3/dist-packages/future/backports/email/_header_value_parser.py:13
+...
+[snip]
+...
+  _queryprog = re.compile('^(.*)\?([^?]*)$')
+/usr/lib/python3/dist-packages/past/types/oldstr.py:23:
+    SyntaxWarning: invalid escape sequence '\d'
+  """
+
+ +

This snippet shows warnings for clean single-source support for Python 3 + and 2 - Python 3.x.

+ +

python3-future has been removed from Debian. Future is not compatible with Python 3.12 and many +projects have been or are deprecating support for Python 2.7 and Python 3.5. I removed the offending package +and hopefully will not have a problem. Fingers crossed.

+ +

bleachbit

+ +
Setting up bleachbit (4.6.0-3) ...
+/usr/share/bleachbit/bleachbit/Action.py:42:
+    SyntaxWarning: invalid escape sequence '\['return re.search('[?*\[\]]', s) is not None
+/usr/share/bleachbit/bleachbit/Cleaner.py:402:
+    SyntaxWarning: invalid escape sequence '\W'
+ +

I kept bleachbit as I use it a lot.

+ +

os-prober

+ +
Warning: os-prober will not be executed to detect other bootable partitions.
+Systems on them will not be added to the GRUB boot configuration.
+Check GRUB_DISABLE_OS_PROBER documentation entry.
+Adding boot menu entry for UEFI Firmware Settings ...
+done
+ +

The OS_prober feature has been + disabled by default since GRUB 2.06, the version Ubuntu 22.04 LTS shipped with. A choice by upstream to +address possible security issues with the OS-detecting feature.

+ +

You can add GRUB_DISABLE_OS_PROBER=false to the first section in /etc/default/grub, save, +and then run sudo update-grub to detect your other systems.

+ +

Check upgrade was done

+ +
nina@tardis:~$ lsb_release -a
+No LSB modules are available.
+Distributor ID:	Ubuntu
+Description:	Ubuntu 24.04.1 LTS
+Release:	24.04
+Codename:	noble
+ +

dkms

+ +
Processing triggers for linux-image-6.8.0-44-generic (6.8.0-44.44) ...
+/etc/kernel/postinst.d/dkms:
+ * dkms: running auto installation service for kernel 6.8.0-44-generic
+ * dkms: autoinstall for kernel 6.8.0-44-generic
+   ...done.
+ +

The kernel may be missing a module or two (wooops, them were not compiled). Use this script to rebuild every +dkms-controlled module for every installed kernel. Name it dkmsbuildall.sh for example.

+ +
nina@tardis:~$ cd /usr/local/sbin
+nina@tardis:/usr/local/sbin$ sudo vi dkmsbuildall.sh
+[sudo] password for nina:
+nina@tardis:/usr/local/sbin$ cat dkmsbuildall.sh
+#!/bin/bash
+ls -d /usr/src/linux-headers-* \
+ | sed -e 's/.*linux-headers-//' \
+ | grep generic \
+ | sort -V \
+ | tac \
+ | xargs -n1 /usr/lib/dkms/dkms_autoinstaller start
+nina@tardis:/usr/local/sbin$
+ +

Modify the file permissions to allow execution of the script, and execute:

+ +

+nina@tardis:/usr/local/sbin$ sudo chmod u+x dkmsbuildall.sh
+nina@tardis:/usr/local/sbin$ sudo ./dkmsbuildall.sh
+ * dkms: running auto installation service for kernel 6.8.0-44-generic
+ * dkms: autoinstall for kernel 6.8.0-44-generic                         [ OK ]
+ * dkms: running auto installation service for kernel 6.8.0-40-generic
+ * dkms: autoinstall for kernel 6.8.0-40-generic                         [ OK ]
+ * dkms: running auto installation service for kernel 6.5.0-44-generic
+ * dkms: autoinstall for kernel 6.5.0-44-generic                         [ OK ]
+ * dkms: running auto installation service for kernel 6.2.0-39-generic
+ * dkms: autoinstall for kernel 6.2.0-39-generic                         [ OK ]
+ * dkms: running auto installation service for kernel 5.15.0-119-generic
+ * dkms: autoinstall for kernel 5.15.0-119-generic                       [ OK ]
+
+ +

Ubuntu desktop

+ +

What desktop I am using:

+ +
nina@tardis:~$ ls /usr/bin/*session
+/usr/bin/dbus-run-session  /usr/bin/gnome-session
+
+ +

Just to be sure, reinstall the necessaries:

+ +
nina@tardis:~$ sudo apt-get install --reinstall gnome-terminal gnome-shell-ubuntu-extensions gnome-shell-extensions
+...
+[snip]
+...
+The following additional packages will be installed:
+  chrome-gnome-shell gir1.2-gtop-2.0 gnome-browser-connector
+  gnome-shell-extension-prefs
+Suggested packages:
+  chromium | chromium-browser
+The following NEW packages will be installed
+  chrome-gnome-shell gir1.2-gtop-2.0 gnome-browser-connector
+  gnome-shell-extension-prefs gnome-shell-extensions
+  gnome-shell-ubuntu-extensions
+0 to upgrade, 6 to newly install, 1 reinstalled, 0 to remove and 1 not to upgrade.
+Need to get 208 kB/425 kB of archives.
+After this operation, 1 262 kB of additional disk space will be used.
+Do you want to continue? [Y/n] Y
+...
+
+ +

And:

+ +
nina@tardis:~$ sudo apt-get install --reinstall ubuntu-desktop
+Reading package lists... Done
+Building dependency tree... Done
+Reading state information... Done
+The following packages were automatically installed and are no longer required:
+  ...
+Use 'sudo apt autoremove' to remove them.
+The following additional packages will be installed:
+  ubuntu-advantage-tools
+The following packages will be upgraded:
+  ubuntu-advantage-tools
+1 to upgrade, 0 to newly install, 1 reinstalled, 0 to remove and 1 not to upgrade.
+Need to get 0 B/13,4 kB of archives.
+After this operation, 3 072 B disk space will be freed.
+Do you want to continue? [Y/n] Y
+...
+
+ +

Reboot

+ +

Do it, and keep fingers crossed.

+ +nina@tardis:~$ sudo reboot + +

Aftermath

+ +

Close port:

+ +
nina@tardis:~$ sudo ufw delete 1022/tcp
+ +

Remove crud

+ +nina@tardis:~$ sudo apt autoremove + +

Upgrading PostgreSQL

+ +

Okay, this one is normal after a major PostgreSQL upgrade.

+ +

+Creating new PostgreSQL cluster 16/main ...
+/usr/lib/postgresql/16/bin/initdb -D /var/lib/postgresql/16/main --auth-local pe
+er --auth-host scram-sha-256 --no-instructions
+The files belonging to this database system will be owned by user "postgres".
+This user must also own the server process.
+
+The database cluster will be initialized with this locale configuration:
+  provider:    libc
+  LC_COLLATE:  en_US.UTF-8
+  LC_CTYPE:    en_US.UTF-8
+  LC_MESSAGES: en_US.UTF-8
+  LC_MONETARY: fr_FR.UTF-8
+  LC_NUMERIC:  fr_FR.UTF-8
+  LC_TIME:     fr_FR.UTF-8
+The default database encoding has accordingly been set to "UTF8".
+The default text search configuration will be set to "english".
+
+Data page checksums are disabled.
+
+fixing permissions on existing directory /var/lib/postgresql/16/main ... ok
+creating subdirectories ... ok
+selecting dynamic shared memory implementation ... posix
+selecting default max_connections ... 100
+selecting default shared_buffers ... 128MB
+selecting default time zone ... Europe/Paris
+creating configuration files ... ok
+running bootstrap script ... ok
+performing post-bootstrap initialization ... ok
+syncing data to disk ... ok
+
+ +

That is, of course, not the end of the story. + Been there, done that several times already, ate the t-shirts. Did not upgrade from 14 to 15 yet even.

+ +

Now the current clusters will have two version of postgresql, in my case 14 and 16 because I could not be bothered to do the data upgrade to 15:

+ +
nina@tardis:~$ sudo pg_lsclusters
+[sudo] password for nina:
+Ver Cluster Port Status Owner    Data directory              Log file
+14  main    5432 online postgres /var/lib/postgresql/14/main /var/log/postgresql/postgresql-14-main.log
+16  main    5433 online postgres /var/lib/postgresql/16/main /var/log/postgresql/postgresql-16-main.log
+
+ +

Stop the new version:

+ +
nina@tardis:~$ sudo pg_dropcluster 16 main --stop
+ +

Start the upgrade process:

+ +
nina@tardis:~$ sudo pg_upgradecluster 14 main
+ +

Monitor the process, and when done without problems, remove the old version:

+ +
nina@tardis:~$ sudo pg_dropcluster 14 main
+ +

Purge the old package:

+ +
nina@tardis:~$ sudo apt purge postgresql-14 postgresql-client-14
+ +

Double-check the current clusters:

+ +
nina@tardis:~$ sudo pg_lsclusters
+ +

Sigh

+ +

Big one.

+ + +
+ +
+
+

+ Raw magic crackled from their spines, earthing itself harmlessly in the copper rails nailed to every shelf for + that very purpose. Faint traceries of blue fire crawled across the bookcases and there was a sound, a + papery whispering, such as might come from a colony of roosting starlings. In the silence of the night the + books talked to one another. A student

+ +
+
+ +
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