Upgrading Alpine

From Alpine Linux
Revision as of 01:10, 29 October 2012 by Dubiousjim (talk | contribs) (Merge content from "Upgrading Alpine - v1.9x")
Warning: Make sure that you have a backup of your important data before continuing to update your system.


Upgrading an Alpine Linux Hard-disk installation

When Alpine Linux is installed to hard drive, upgrading the installation is simple.


Edit the /etc/apk/repositories file using an editor (nano for instance) and if necessary, add references to the Alpine package repositories. In the example below, the file references the Alpine CD, so that if a requested package is available on the local media, it will be obtained from there instead of being downloaded from the remote repository:

Contents of /etc/apk/repositories

/media/cdrom/apks http://dl-3.alpinelinux.org/alpine/v3.3/main

To upgrade, in this example, from version 3.3 to 3.19, simply change:

http://dl-3.alpinelinux.org/alpine/v3.3/main

to

http://dl-3.alpinelinux.org/alpine/v3.19/main

So that the file will look like this:

Contents of /etc/apk/repositories

/media/cdrom/apks http://dl-3.alpinelinux.org/alpine/v3.19/main
Note: Starting with version 3.3, there is a new repository called community. Many packages have been moved from the main repository to the community repository to indicate that they are not guaranteed to be supported beyond six months. If you are using any of these packages, be sure to add the community repository. For example: http://dl-3.alpinelinux.org/alpine/v3.19/community

Above, only one possible repository is shown, however, http://dl-3.alpinelinux.org/alpine/ may also be replaced with any geographically close mirror from: http://rsync.alpinelinux.org/alpine/MIRRORS.txt

Updating package lists

With the correct repositories file in place, the latest index list of available packages can be obtained with:

apk update

Tip: Adding the --update-cache or -U to another apk command, as in apk add -U ... or apk upgrade -U, has the same effect as always running apk update immediately before the other apk command. Instead of auto-update it only if the index has not been updated recently.

Ensure you have the latest available version of the Alpine Linux Package Manager first before upgrading anything else:

apk add -u apk-tools

Upgrading to latest release

Repository Settings

First thing is to to edit or check the /etc/apk/repositories file.

Besides doing it manually (see below) this may be done using one of the following shortcuts.

  • Launching the corresponding Alpine setup script,

    setup-apkrepos

    and pressing e to edit /etc/apk/repositories. Then editing the repository lines to reflect the new version number.
  • Or, use a one-line command to edit all version numbers in the file "in place". Here's how you'd change v2.5 to v2.6:

    sed -i -e 's/v2\.5/v2\.6/g' /etc/apk/repositories

Note, subsequent manual changes of the version numbers in /etc/apk/repositories may be avoided for future release upgrades by having the repository lines refer to "latest-stable" instead of an absolute value:

Contents of /etc/apk/repositories

http://dl-3.alpinelinux.org/alpine/latest-stable/main http://dl-3.alpinelinux.org/alpine/latest-stable/community

However, beware of initiating unexpected release upgrades.

Manual editing of /etc/apk/repositories:


Edit the /etc/apk/repositories file using an editor (nano for instance) and if necessary, add references to the Alpine package repositories. In the example below, the file references the Alpine CD, so that if a requested package is available on the local media, it will be obtained from there instead of being downloaded from the remote repository:

Contents of /etc/apk/repositories

/media/cdrom/apks http://dl-3.alpinelinux.org/alpine/v3.3/main

To upgrade, in this example, from version 3.3 to 3.19, simply change:

http://dl-3.alpinelinux.org/alpine/v3.3/main

to

http://dl-3.alpinelinux.org/alpine/v3.19/main

So that the file will look like this:

Contents of /etc/apk/repositories

/media/cdrom/apks http://dl-3.alpinelinux.org/alpine/v3.19/main
Note: Starting with version 3.3, there is a new repository called community. Many packages have been moved from the main repository to the community repository to indicate that they are not guaranteed to be supported beyond six months. If you are using any of these packages, be sure to add the community repository. For example: http://dl-3.alpinelinux.org/alpine/v3.19/community

Above, only one possible repository is shown, however, http://dl-3.alpinelinux.org/alpine/ may also be replaced with any geographically close mirror from: http://rsync.alpinelinux.org/alpine/MIRRORS.txt

Updating package lists

With the correct repositories file in place, the latest index list of available packages can be obtained with:

apk update

Tip: Adding the --update-cache or -U to another apk command, as in apk add -U ... or apk upgrade -U, has the same effect as always running apk update immediately before the other apk command. Instead of auto-update it only if the index has not been updated recently.

Upgrading packages

At times it is required to first upgrade just the Alpine Linux Package Manager itself to the latest available version, before upgrading any other package. This was the case, for example, when upgrading from a version of Alpine before 2.3.0_rc1. But simply always doing so shouldn't hurt, either:

apk add --upgrade apk-tools

Next, to upgrade all installed packages:

apk upgrade --available

The --available switch is used to force all packages to be upgraded, even if they have the same version numbers. Sometimes changes in musl require doing this.

Note: All services that have been upgraded need to be restarted, to begin using the upgraded version. If the kernel is upgraded, it's required to reboot to begin using the upgraded version:

sync reboot

Upgrading to Edge

An upgrade of Alpine Linux from a stable version to the rolling development version edge basically requires the same steps as Upgrading to latest release.

The crucial difference is, that when editing the /etc/apk/repositories file, all referenced repository versions (such as v3.19 or latest-stable) therein need to be pointing to edge as in:

https://<mirror-server>/alpine/edge/main

Warning: Do not enable stable and edge repos at the same time. This can break your system. Either use edge or stable.


After upgrading to edge, the currently installed edge version may be checked with

$ cat /etc/alpine-release

and referring to the build date that is attached to the release.

Upgrading from older versions

See Upgrading from older versions.


Upgrading Alpine Linux on CD

You may have an installation where the boot media being used (such as a CD, for example) is separate from the media used to store the configuration information. In this case, simply download the latest ISO, and replace the boot media contents with the contents of the latest ISO. If you are booting from a CD, this would simply mean replacing the CD with a CD made from the new image and rebooting the Alpine Linux box.

Update remaining packages from Web repository

If you are using APK caching you should also perform the following steps:


Edit the /etc/apk/repositories file using an editor (nano for instance) and if necessary, add references to the Alpine package repositories. In the example below, the file references the Alpine CD, so that if a requested package is available on the local media, it will be obtained from there instead of being downloaded from the remote repository:

Contents of /etc/apk/repositories

/media/cdrom/apks http://dl-3.alpinelinux.org/alpine/v3.3/main

To upgrade, in this example, from version 3.3 to 3.19, simply change:

http://dl-3.alpinelinux.org/alpine/v3.3/main

to

http://dl-3.alpinelinux.org/alpine/v3.19/main

So that the file will look like this:

Contents of /etc/apk/repositories

/media/cdrom/apks http://dl-3.alpinelinux.org/alpine/v3.19/main
Note: Starting with version 3.3, there is a new repository called community. Many packages have been moved from the main repository to the community repository to indicate that they are not guaranteed to be supported beyond six months. If you are using any of these packages, be sure to add the community repository. For example: http://dl-3.alpinelinux.org/alpine/v3.19/community

Above, only one possible repository is shown, however, http://dl-3.alpinelinux.org/alpine/ may also be replaced with any geographically close mirror from: http://rsync.alpinelinux.org/alpine/MIRRORS.txt

Updating package lists

With the correct repositories file in place, the latest index list of available packages can be obtained with:

apk update

Tip: Adding the --update-cache or -U to another apk command, as in apk add -U ... or apk upgrade -U, has the same effect as always running apk update immediately before the other apk command. Instead of auto-update it only if the index has not been updated recently.

Ensure you have the latest available version of the Alpine Linux Package Manager first before upgrading anything else:

apk add -u apk-tools

apk upgrade sync

Upgrading Alpine Linux on Flash Memory (such as CF/USB)

Your installation may consist of Alpine Linux running on Compact Flash or USB media. In most cases, it should be sufficient to upgrade most packages using the Alpine Linux Hard-disk Installation upgrade procedures described above. However, for new packages to survive after a reboot, you should enable APK caching.

Warning: As the newer version of alpine may include kernel upgrades, simply pointing the Alpine Linux Package Manager to an Internet-based repository and running apk upgrade will not be enough, as kernel components are not upgraded when Alpine Linux is run from memory.


Setup environment variables

To make the documentation a bit more "generic" we start by setting some environment variables.

vi /etc/lbu/lbu.conf

Make sure that the variable LBU_MEDIA is not commented (by removing the leading '#').

You also need to set a appropriate value for your LBU_MEDIA. The media you choose will be the media where you store your settings/configuration.

Note: Even if you have you alpine installed on CF, HD or USB you can still choose to save your config on some other media that suits your needs. But remember that both the media where you have your Alpine system AND the media where you have your config need to be in your box when booting it.

Examples:

LBU_MEDIA=usb

or:

LBU_MEDIA=sda1

Now that you have your /etc/lbu/lbu.conf configured for your needs, we will set the environment variables (note the leading .).

. /etc/lbu/lbu.conf

You can test if your environment variable was set:

echo $LBU_MEDIA

It should output something like usb, sda1, or whatever you just configured.

Back up your config

Before starting to upgrade, it's wise to save your configuration.

lbu ci

Upgrade Operating System

Start by checking that you have enough space on your media.
You need at least 400MB available space.

df -h

Download and verify new release

Make sure the media is mounted readwrite.

mount --remount rw /media/$LBU_MEDIA

Tip: If using Alpine Linux 2.2.3 or newer, use the following command to download, mount and copy files as needed for you:

setup-bootable -u {{#latestalp:alpine|url}} /media/$LBU_MEDIA

Once the command completes, proceed to the Load new kernel section.

Start downloading a new '.iso' and a '.sha1' file

cd /media/$LBU_MEDIA wget -c {{#latestalp:alpine|url}} wget {{#latestalp:alpine|url}}.sha1

Check integrity of the downloaded files (it might take some time)

sha1sum -c {{#latestalp:alpine|file}}.sha1

The output of the above command should say 'OK'.
If says 'FAILED', delete the iso file and download it again.

Copy the new release

Note: There is a tool, setup-bootable, in alpine-1.10.4 and newer, that does the mounting and copying for you. With this tool simply do:

setup-bootable -u {{#latestalp:alpine|file}} /media/$LBU_MEDIA

Once the command completes, proceed to the Load new kernel section.

Mount the ISO.

mount -t iso9660 {{#latestalp:alpine|file}} /mnt

Back up files that you have modified. For example, you might have modified syslinux.cfg to show console output on a serial port.

cp /media/$LBU_MEDIA/syslinux.cfg /media/$LBU_MEDIA/syslinux.cfg.my

Install the rsync package if necessary, and copy the files:

cd /mnt apk add rsync rsync --delete -rltv .alpine-release * /media/$LBU_MEDIA/

Restore your backed up files (in case you had any)

mv -f /media/$LBU_MEDIA/syslinux.cfg.my /media/$LBU_MEDIA/syslinux.cfg

Make sure that all files are permanently saved in right place

sync

Clean up

Clean up the downloaded/unpacked files

cd .. umount /mnt rm /media/$LBU_MEDIA/{{#latestalp:alpine|file}} rm /media/$LBU_MEDIA/{{#latestalp:alpine|file}}.sha1

Save changes

Now that all upgrades are done, we should save our settings to our media (which you hopefully have backed up prior to doing this upgrade).

lbu ci

Load new kernel

In most cases you will need to reboot Alpine Linux (especially if there are changes in the kernel):

reboot

Note: If you know what you are doing, you might not need to reboot. But make sure that all services affected by the upgrade are restarted.

Update remaining packages from Web repository

If you are using APK caching you should perform the following steps:


Edit the /etc/apk/repositories file using an editor (nano for instance) and if necessary, add references to the Alpine package repositories. In the example below, the file references the Alpine CD, so that if a requested package is available on the local media, it will be obtained from there instead of being downloaded from the remote repository:

Contents of /etc/apk/repositories

/media/cdrom/apks http://dl-3.alpinelinux.org/alpine/v3.3/main

To upgrade, in this example, from version 3.3 to 3.19, simply change:

http://dl-3.alpinelinux.org/alpine/v3.3/main

to

http://dl-3.alpinelinux.org/alpine/v3.19/main

So that the file will look like this:

Contents of /etc/apk/repositories

/media/cdrom/apks http://dl-3.alpinelinux.org/alpine/v3.19/main
Note: Starting with version 3.3, there is a new repository called community. Many packages have been moved from the main repository to the community repository to indicate that they are not guaranteed to be supported beyond six months. If you are using any of these packages, be sure to add the community repository. For example: http://dl-3.alpinelinux.org/alpine/v3.19/community

Above, only one possible repository is shown, however, http://dl-3.alpinelinux.org/alpine/ may also be replaced with any geographically close mirror from: http://rsync.alpinelinux.org/alpine/MIRRORS.txt

Updating package lists

With the correct repositories file in place, the latest index list of available packages can be obtained with:

apk update

Tip: Adding the --update-cache or -U to another apk command, as in apk add -U ... or apk upgrade -U, has the same effect as always running apk update immediately before the other apk command. Instead of auto-update it only if the index has not been updated recently.

Ensure you have the latest available version of the Alpine Linux Package Manager first before upgrading anything else:

apk add -u apk-tools

apk upgrade sync