134 lines
4.0 KiB
Groff
134 lines
4.0 KiB
Groff
.Dd January 5, 2016
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.Dt UPGRADE 7
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.Os
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.Sh NAME
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.Nm upgrade
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.Nd operating system upgrade instructions
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.Sh DESCRIPTION
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This document describes how to upgrade an existing Sortix installation to a
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newer release.
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The
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.Xr installation 7
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manual page covers creating a new installation.
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.Ss Prerequisites
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You need to prepare a bootable medium with the new release as described in
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.Xr installation 7 .
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Read all the instructions up to Bootloader Menu and continue with this document.
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.Pp
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It is not possible to skip releases.
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If you want to upgrade to a release, you must upgrade first to all releases
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before that one.
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If the existing installation is a development snapshot, you must either upgrade
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to a newer development snapshot of that version, or a the final release of that
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version.
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.Ss Bootloader Menu
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Pick the
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.Li upgrade existing installation
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option in the bootloader menu to begin the upgrade.
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This will load a live environment set to automatically run the
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.Xr sysupgrade 8
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program.
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.Ss Upgrader
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This guide assumes you selected the upgrade option in the bootloader.
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If not, you can run the installer by running the
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.Xr sysupgrade 8
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command.
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.Pp
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The upgrader is an interactive command line program that asks you questions and
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you answer them.
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It provides useful information you shouldn't accidentally overlook.
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Before answering any question, read all output since your last answer.
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.Pp
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You should have this upgrade guide ready at all times.
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You can view this
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.Xr upgrade 7
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page during the installation by answering
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.Sy '!man'
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to any regular prompt (excluding password prompts).
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Likewise you can answer
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.Sy '!'
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to get an interactive shell.
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Upon completion, you will be asked the question again.
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.Ss Keyboard Layout
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You need to choose the applicable keyboard layout.
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By default, a standard US keyboard layout is used.
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You can view a list of keyboard layouts if you wish.
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.Ss Display Resolution
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If a driver exists for your graphics card, then you will be asked for your
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preferred display resolution by
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.Xr chvideomode 1 .
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.Ss Installation Search
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The upgrader will search for existing Sortix installations by probing local
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filesystems for
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.Pa /etc/sortix-release .
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You will be asked which installation you wish to upgrade.
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Enter the name of the root filesystem device.
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If none are found, it asks if you want to run
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.Xr sysinstall 8 .
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Filesystems will be repaired by
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.Xr fsck 8
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as needed.
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.Ss Confirmation
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The upgrader will warn you if it detects you are not following proper upgrade
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procedure either by downgrading or by skipping a release, neither of which is
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supported.
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It will also warn you if it detects an ABI downgrade.
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.Pp
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The upgrade will load the upgrade preferences from
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.Pa /etc/upgrade.conf
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file of the target system as described in
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.Xr upgrade.conf 5 .
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.Pp
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The new release may have a new ABI.
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A major ABI change means the new kernel will be unable to properly execute old
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programs.
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A minor ABI change means the new kernel has new compatible features and will be
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able to run older programs, but older kernels will not be able to run programs
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using the new ABI.
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.Pp
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A confirmation screen will tell you what actions the upgrader plan on doing.
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Answer
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.Sy yes
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to proceed with the upgrade.
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Otherwise you can escape to a shell, edit
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.Xr upgrade.conf 5 ,
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return and answer
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.Sy no
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and the upgrader will reload the configuration.
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.Ss Upgrade
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The upgrader will take the appropriate actions:
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.Pp
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.Bl -bullet -compact
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.It
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Updating the system.
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.It
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Updating the ports.
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.It
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Updating the source code.
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.It
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Updating the initrd.
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.It
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Updating the bootloader.
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.El
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.Ss Completion
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The upgrade is now complete.
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The new system will run after a reboot.
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The upgrader will give you an overview of what it has done.
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If you upgraded across a major ABI change, then you will be told that you need
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to recompile all local programs to use the new ABI.
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.Pp
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Congratulations on your freshly upgraded Sortix system.
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.Sh SEE ALSO
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.Xr chkblayout 1 ,
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.Xr chvideomode 1 ,
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.Xr man 1 ,
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.Xr development 7 ,
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.Xr initrd 7 ,
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.Xr installation 7 ,
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.Xr kernel 7 ,
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.Xr user-guide 7 ,
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.Xr sysinstall 8 ,
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.Xr sysupgrade 8 ,
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.Xr update-grub 8 ,
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.Xr update-initrd 8
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