[SOLVED] Upgrade Kubuntu 25.04 to Kubuntu 25.10

[checco]

I'm wondering if it's possible to upgrade to version 25.10 from version 25.04 without having to format the HD, thus keeping all the various programs such as browsers and email clients, etc.

If it is possible, how can it be done?

Thank you so much for any replies.

[Princey]

I'm wondering if it's possible to upgrade to version 25.10 from version 25.04 without having to format the HD, thus keeping all the various programs such as browsers and email clients, etc.

If it is possible, how can it be done?

Thank you so much for any replies.

It is possible. As long as your package manager isn't set to upgrade to LTS releases only, you'll eventually get the notification (mine hasn't arrived as yet). Discover--->Settings--->Software Sources (If it doesn't show as it does that from time to time due to a bug, just run

sudo software-properties-qt

from the terminal. Go to the "UPDATE" Tab and check the last section "RELEASE UPGRADE". Make sure it's set to normal releases.

[Ganton]

You can also see https://help.ubuntu.com/community/Qu...grades/Kubuntu .

Those are comments of other people:

It appears upgrades have not been switched on yet. This is normal, and normally take a few hours or even sometimes days before the main Ubuntu release team switch them on.

> > The rust-coreutils bug was not fixed: https://bugs.launchpad.net/ubuntu/+s...s/+bug/2125535

> Do you have any recommended commands to remove those rust-coreutils and instead use the standard coreutils?

For Kubuntu 25.10, this worked for me:

sudo apt remove --allow-remove-essential rust-coreutils coreutils-from-uutils sudo-rs
# Avoid that these packages are removed when executing e.g. `sudo apt autoremove`
sudo apt install iputils-ping netcat-openbsd

[checco]

very kind, thank you

[Snowhog]

As many will discover; I did; upgrading to 25.10 (from 25.04) today (October 9, 2025) from the command line using sudo do-release-upgrade will return the message: No new release found.

AI Overview

As of October 9, 2025, running
sudo do-release-upgrade normally won't upgrade you to Kubuntu 25.10 because the distribution was only released today. There is a standard waiting period before the release upgrade tool is fully enabled for general users, giving the development team time to monitor for any critical post-release issues.

How to upgrade

To upgrade your system today, you must use the -d option to explicitly target the newly released, or "development," version.

• First, ensure your current system is fully up to date by running the following commands in a terminal: sh

• sudo apt update sudo apt full-upgrade
• Once your system is fully patched, start the release upgrade with the -d flag: sh
• sudo do-release-upgrade -d
• Follow the on-screen instructions to complete the upgrade.

Why do-release-upgrade has a delay

The delay is an intentional safety measure to ensure a stable upgrade path for the majority of users.

• Stability testing: Even after the final release, the Ubuntu Release Team continues to test the upgrade path itself. During this period, they can fix any bugs that might cause a system to break during the transition.
• Gradual rollout: The automated upgrade notification is typically enabled a week or two after the official release date. This prevents a rush of users from overloading the servers and ensures a smoother experience for everyone.
• LTS upgrades are different: For upgrades between Long Term Support (LTS) releases, the waiting period is even longer, often until the first point release (e.g., 24.04.1) arrives, which is about three months after the initial release.

[Ganton]

Another person wrote:

Ubuntu 25.10 has been released thus far for NEW installs.

If you refer https://changelogs.ubuntu.com/meta-release you'll see that "Supported: 0" so the Ubuntu Release team have not yet approved and thus not opened the release-upgrade path to 25.10.

That meeting and review usually starts early in the week AFTER the actual ISO release, which is where we are now.

Flavors like Kubuntu are no different to Ubuntu in this regard.

[chrispbacon]

I'd suggest people NOT do what was suggested in this thread earlier, unless you want a broken system, tested it myself, quote:

sudo apt remove --allow-remove-essential rust-coreutils coreutils-from-uutils sudo-rs
# Avoid that these packages are removed when executing e.g. `sudo apt autoremove`
sudo apt install iputils-ping netcat-openbsd

It removes more than you think:

So, a healthy upgrade:

root@build64:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 25.10
Release:        25.10
Codename:       questing

root@build64:~# apt autoremove
Summary:                        
  Upgrading: 0, Installing: 0, Removing: 0, Not Upgrading: 0​

What will happen if you run the command suggested earlier in this thread:

root@build64:~# apt remove --allow-remove-essential rust-coreutils coreutils-from-uutils sudo-rs
The following packages were automatically installed and are no longer required:
  apport                    gir1.2-packagekitglib-1.0  libmpathpersist0           netplan.io               python3-jsonpatch                  python3-systemd
  apport-core-dump-handler  hwctl                      libmultipath0              packagekit               python3-jsonschema                 python3-uc-micro
  apport-symptoms           iproute2                   libnetplan1                packagekit-tools         python3-jsonschema-specifications  python3-urllib3
  appstream                 iputils-ping               libpackagekit-glib2-18     pollinate                python3-linkify-it                 python3-xkit
  bcache-tools              kdump-tools                libproc-processtable-perl  python-babel-localedata  python3-markdown-it                sg3-utils
  btrfs-progs               kexec-tools                libsgutils2-1.48           python3-apport           python3-markupsafe                 sg3-utils-udev
  cloud-guest-utils         kpartx                     libsnappy1v5               python3-attr             python3-mdurl                      software-properties-common
  cloud-init                libaio1t64                 libsort-naturally-perl     python3-babel            python3-netplan                    sudo
  cloud-init-base           libdevmapper-event1.02.1   libterm-readkey-perl       python3-certifi          python3-passlib                    thin-provisioning-tools
  crash                     libeatmydata1              lvm2                       python3-chardet          python3-problem-report             ubuntu-drivers-common
  cryptsetup                libinih1                   makedumpfile               python3-click            python3-referencing                unattended-upgrades
  cryptsetup-initramfs      libintl-perl               mdadm                      python3-configobj        python3-requests                   unminimize
  dmeventd                  libintl-xs-perl            multipath-tools            python3-debconf          python3-rich                       vim-common
  eatmydata                 liblvm2cmd2.03             needrestart                python3-idna             python3-rpds-py                    vim-tiny
  eject                     libmodule-find-perl        netcat-openbsd             python3-jinja2           python3-serial                     xfsprogs
  gdisk                     libmpathcmd0               netplan-generator          python3-json-pointer     python3-software-properties        xxd
Use 'apt autoremove' to remove them.

Installing dependencies:
  coreutils-from-gnu

REMOVING:
  coreutils-from-uutils  rust-coreutils  sudo-rs  ubuntu-minimal  ubuntu-server-minimal

WARNING: The following essential packages will be removed.
This should NOT be done unless you know exactly what you are doing!
  coreutils-from-uutils  rust-coreutils (due to coreutils-from-uutils)

Summary:
  Upgrading: 0, Installing: 1, Removing: 5, Not Upgrading: 0
  Download size: 6,748 B
  Freed space: 15.2 MB​

Theres already a warning about what its going to do if you proceed, it will also remove ubuntu-minimal and ubuntu-server-minimal

Doing that then marks a whole bunch of other packages not needed and if you are in the habit of running apt autoremove from time to time to clean up obsolete packages, you can kiss all those packages goodbye.

Unless there's a good reason to want to try and switch back to the GNU package (apart from having RDS (rust derangement syndrome)), i'd just leave it.

[Ganton]

I'd suggest people NOT do what was suggested in this thread earlier, unless you want a broken system, tested it myself, quote:

> > The rust-coreutils bug was not fixed: https://bugs.launchpad.net/ubuntu/+s...s/+bug/2125535

(...)

root@build64:~# apt autoremove
Summary:
Upgrading: 0, Installing: 0, Removing: 0, Not Upgrading: 0[/CODE]

What will happen if you run the command suggested earlier in this thread:

[CODE]root@build64:~# apt remove --allow-remove-essential rust-coreutils coreutils-from-uutils sudo-rs
The following packages were automatically installed and are no longer required:
apport gir1.2-packagekitglib-1.0 libmpathpersist0 netplan.io python3-jsonpatch python3-systemd
apport-core-dump-handler hwctl libmultipath0 packagekit python3-jsonschema python3-uc-micro
apport-symptoms iproute2 libnetplan1 packagekit-tools python3-jsonschema-specifications python3-urllib3
appstream iputils-ping libpackagekit-glib2-18 pollinate python3-linkify-it python3-xkit
bcache-tools kdump-tools libproc-processtable-perl python-babel-localedata python3-markdown-it sg3-utils
btrfs-progs kexec-tools libsgutils2-1.48 python3-apport python3-markupsafe sg3-utils-udev
cloud-guest-utils kpartx libsnappy1v5 python3-attr python3-mdurl software-properties-common
cloud-init libaio1t64 libsort-naturally-perl python3-babel python3-netplan sudo
cloud-init-base libdevmapper-event1.02.1 libterm-readkey-perl python3-certifi python3-passlib thin-provisioning-tools
crash libeatmydata1 lvm2 python3-chardet python3-problem-report ubuntu-drivers-common
cryptsetup libinih1 makedumpfile python3-click python3-referencing unattended-upgrades
cryptsetup-initramfs libintl-perl mdadm python3-configobj python3-requests unminimize
dmeventd libintl-xs-perl multipath-tools python3-debconf python3-rich vim-common
eatmydata liblvm2cmd2.03 needrestart python3-idna python3-rpds-py vim-tiny
eject libmodule-find-perl netcat-openbsd python3-jinja2 python3-serial xfsprogs
gdisk libmpathcmd0 netplan-generator python3-json-pointer python3-software-properties xxd
Use 'apt autoremove' to remove them.

I've tried it again. Those messages that you quoted did NOT happen using a Kubuntu 25.10 installation (I used "NOT" in uppercase letters, like you did). We can see that you have "ubuntu-server-minimal" installed, the subject of this issue is "Upgrade Kubuntu 25.04 to Kubuntu 25.10", not "Ubuntu server".

[Ganton]

Note: If I had to install Ubuntu Server 25.10, to automate the process perhaps I would use

sudo apt install $(apt-get --dry-run autoremove | awk '/^Remv / {printf "%s ", $2}')

instead of

sudo apt install iputils-ping netcat-openbsd

[zpiatek]

Any idea as to when 25.10 can be upgraded from 25.04 via the terminal?

[claydoh]

Any idea as to when 25.10 can be upgraded from 25.04 via the terminal?

See:

You can also see https://help.ubuntu.com/community/Qu...grades/Kubuntu .

But basically, it will be when any issues that Ubuntu have found have been addressed (if any), so there is never a specific date or deadline set for flipping on the upgrade notification.