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SDB:System upgrade
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A live upgrade from the prior version is officially supported. This allows to perform a complete operating system upgrade in place, without reloading everything from scratch.
Contents
Summary
This page explains how to run a series of command line steps to live upgrade your system to the latest version of openSUSE.
Doing a live upgrade has advantages as well as disadvantages.
Among the advantages are:
- You only download the packages that need to be upgraded, thus using a lot less bandwidth.
- During the upgrade, you can still use your workstation (even if this is not recommended); the only downtime will be the reboot after the upgrade.
- You do not have to use a DVD, nor do you need a DVD writer. You do not have to use a USB key. This because you boot your existing system, and install everything from the net.
The disadvantages:
- If, for any reason, the upgrade is interrupted (e.g. power outages, network disconnect) and the process cannot continue, you could be left with a broken system (that depends on where the process stopped of course).
- If you have multiple systems to upgrade, you use bandwidth each time, so it might be better to download an ISO image.
- It does not do all of the cleanup and maintenance that an offline DVD Upgrade does.
Other possibility: Offline upgrade, a.k.a. traditional or DVD upgrade. For more information, read offline upgrade. This upgrade method is safer and more versatile. Unless you have a good reason to do otherwise, use the offline upgrade method.
Supported scenarios
Update from 32-bit openSUSE to Leap is not supported. Leap is 64-bit only. If your hardware has x86_64 support, you can upgrade 13.2 to 64-bit first. See 32-bit to 64-bit upgrade.
On the AArch64 architecture (64-bit ARM), upgrading from Leap 15.0 to Leap 15.1 is not supported. Please do a fresh installation on those systems.
Be aware that, in principle, this upgrade process is considered “best effort” only. This means that due to some third-party packages and the myriad of possible configurations, it is possible for some combinations to cause failure upon upgrade.
Also, remember these important rules:
- All important data must be backed up prior to beginning the upgrade process.
- You must update your system with the latest updates for the release you are currently running before running zypper dup.
- You must only zypper dup to the next release. Hopping over a release, e.g., going from 42.1 -> 15.1, is not supported.
Warning: Do not skip a release when upgrading! Example: do not upgrade from 15.1 to 15.3. Instead, from 15.1 upgrade to 15.2, and only then from 15.2 to upgrade to 15.3.
Note: for 15.3 specifically only the upgrade from a fully updated 15.2 is supported. See the Release Notes, chapter 2.1 (Seamless upgrade from openSUSE Leap 15.2).
Migration to openSUSE Tumbleweed
Note: according to factory mail list it has been tested in openQA direct upgrade from openSUSE 12.x to Tumbleweed (till snapshot 1101). Currently (Nov 2017) the process is tested from 13.x and 42.x directly to TW. However, this does not mean that you should do it! You could hit an unknown problem.
Migration to SUSE Linux Enterprise
If you're interested in migration from openSUSE Leap to SUSE Linux Enterprise. Then please follow our guide for migrating to SUSE Linux Enterprise.
Making sure you are up to date
The supported starting point is the last openSUSE release with all current updates applied. This does not include arbitrary openSUSE Build Service repositories you may have added. We recommend that you disable all OBS repositories first, perform the upgrade, then reenable them. The following steps show you how to update your openSUSE distribution to the current packages before upgrading to the next version.
Note: the advice to remove extra repositories may be deprecated.
Find out what version of openSUSE you currently have as follows:
lsb_release -d
Extra repositories handling
Zypper dup can now better handle extra repositories during upgrade. Removing a repository causes the problem that every package that was installed from it will revert to another repository (if found), or deleted, or left at the old version, depending on the administrator choices. It may be a better method to leave the repository active. A typical example would be Packman.
However, a system upgrade can be the perfect occasion to remove some repositories, as too many repositories complicates maintenance. For example, suppose we have some Xfce or Plasma repository we activated to get newer versions (say we needed a feature or correct a problem that was handled in a newer version): now would be the perfect occasion to revert to the mainline version. It would be the chance to consider removing all HOME repositories that we really do not need.
Each repo we remove will cause zypper to ask what to do with packages installed from them: keep or upgrade with vendor change. The policy would be "keep" if we intend to add back the repository after system upgrade, or "update" otherwise. We could use "--allow-vendor-change" but this may have unintended consequences as zypper will then evaluate if any package would be better to obtain a version from another repo, considering the priorities they have.
Thus, you have to choose what road to take, as the administrator ;-)
Graphical tool
See YaST Online Update.
Command line
1. Check if the update repository already exists and is enabled and update before upgrading.
zypper repos --uri
Check if http://download.opensuse.org/update/leap/15.0/oss/ (for openSUSE Leap 15 or later, replace 15.0 with your version) exists in one of the URI column values, and Yes in column Enabled, like the example below,
# | Alias | Name | Enabled | Refresh | URI ---+-----------------+-----------------+---------+---------+---------------------------------------------------- 1 | repo-update | repo-update | Yes | Yes | http://download.opensuse.org/update/leap/15.0/oss/
If the Enabled column says No, enable it by issuing the command
zypper modifyrepo --enable repo-update
- where ‘repo-update’ is the name of the update repository.
If it exists and has been enabled, continue to step 3.
2. Add update-repository
(If your pre-upgrade system is 15.0 and the update repository doesn't already exist):
zypper addrepo --check --refresh --name 'openSUSE-Leap-15.0-Update' http://download.opensuse.org/update/leap/15.0/oss/ repo-update
- Replace 15.0 above with your current openSUSE version.
The openSUSE Leap 15.3 adds two additional update repositories one for openSUSE Backports and one for SUSE Linux Enterprise, these additional repositories are used during online installation and delivered to Leap 15.3 system via a maintenance update of openSUSE-release with Leap 15.3 GA. This is covered in depth in the Release notes.
3. Move /var/cache to a separate subvolume
/var/cache contains a lot of very volatile data, such as the Zypper cache with RPM packages in different versions for each update. As a result of storing data that is mostly redundant but highly volatile, the amount of disk space a snapshot occupies can increase very fast. For solving this problem move /var/cache to a separate subvolume:
- Find out the device name of the root file system:
df /
- Identify the parent subvolume of all the other subvolumes. For openSUSE 15.1 installations, this is a subvolume named with @:
btrfs subvolume list / | grep '@'
- If the output of this command is empty, you do not have a subvolume named with @. In that case, you may be able to proceed with subvolume ID 5 which was used in older versions of openSUSE.
- Mount the specific subvolume to a temporary mount point:
mount /dev/<root-device> -o subvol=@ /mnt
- If you don't have a @ in the subvolume name, mount subvolume ID 5 instead:
mount /dev/<root-device> -o subvolid=5 /mnt
- /mnt/var/cache can already exist and could be the same directory as /var/cache. To avoid data loss, move it:
mv /mnt/var/cache /mnt/var/cache.old
- Create a new subvolume:
btrfs subvol create /mnt/var/cache
- If there is now a directory /var/cache.old, move it to the new location:
mv /var/cache.old/* /mnt/var/cache
- If that is not the case, instead do:
mv /var/cache/* /mnt/var/cache/
- After moving (optionally) remove /mnt/var/cache.old:
rm -rf /mnt/var/cache.old
- Unmount the subvolume from the temporary mount point:
umount /mnt
- Add an entry to /etc/fstab for the new /var/cache subvolume. Use an existing subvolume as a template to copy from. Make sure to leave the UUID untouched (this is the root file system's UUID) and change the subvolume name and its mount point consistently to /var/cache.
- Mount the new subvolume as specified in /etc/fstab:
mount /var/cache
4. Update system to the latest packages
zypper refresh
zypper update
For more information, read Zypper Usage.
Running the Upgrade
The following steps will show you how to upgrade your openSUSE distribution to the following release (eg. 15.2 -> 15.3). If your current version is 15.1 or older, any third party or OBS repositories might cause troubles, so it is prudent to disable or remove some of them before proceeding. If you're already on 15.2 or newer, this advice is deprecated.
Before you begin
Make sure that you read the list of annoying bugs for the new version you are going to install. Some of them could affect the update process. Usually, some solution or workaround is listed alongside the bug, so make sure that you are prepared for upcoming problems.
Also, read the Release Notes which list changes and glitches in the new release.
Upgrading from the command line
The following steps show how to upgrade to 15.3:
5. Update the repos
Check if your Leap repos defined in /etc/zypp/repos.d/ are using the $releasever variable already. If they are still hard-coded with a particular Leap version number, then you need to modify them first. For example, assuming your current version is Leap 15.2, then this can be done withsudo sed -i 's/15.2/${releasever}/g' /etc/zypp/repos.d/*.repo
6. Refresh with the new repos
Switch and refresh all repositories to 15.3# zypper --releasever=15.3 refresh
7. Execute the full distribution upgrade
Now execute the full distribution upgrade.
# zypper --releasever=15.3 dup --download-in-advance
With the above command, zypper will download all packages in advance - which is more reliable if your internet connection may fail. To download packages in heaps and install them in heaps, use:
# zypper --releasever=15.3 dup
Once the dup is finished, openSUSE sets the releasever variable to the new version.
zypper dup step now to receive the final release.8. Reboot
After upgrading, a reboot is recommended to start the new kernel and newer versions of everything.
9. Add extra repositories
Search for updated openSUSE Leap 15.3 compatible third-party repositories that you used before — if you still need them — and add them.zypper addrepo --name <name> <url> <alias>
# zypper ar <url.repo>
Executing zypper up may be enough to update your software from these extra repositories.
Afterwards
Discover and enjoy :)
zypper up can be run from time to time to ensure you have the latest available packages from the various repositories that you have enabled. YOU (Yast Online Update) only addresses security updates from the official repositories.