2016-02-18 16:16:02 -05:00
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.Dd $Mdocdate: February 14 2016 $
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.Dt SYSMERGE 8
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.Os
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.Sh NAME
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.Nm sysmerge
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.Nd upgrade current operating system from a sysroot
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.Sh SYNOPSIS
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.Nm sysmerge
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.Op Fl w
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.Op Fl \-booting
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.Op Fl \-cancel
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.Op Fl \-wait
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.Ar source
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.Sh DESCRIPTION
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.Nm
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upgrades the current operating system by copying the system files from the
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specified
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.Ar source
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directory (usually a sysroot) onto the current root filesystem. This is meant
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to be used when building the operating system from source as described in
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.Xr development 7 .
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.Pp
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.Nm
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installs the
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.Sy system
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manifest from the tix repository in the
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.Ar source
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directory, as well as all the ports found. The
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.Xr initrd 7
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is regenerated using
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.Xr update-initrd 8 .
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If grub is enabled in
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.Xr upgrade.conf 5 ,
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then the bootloader is reinstalled and reconfigured as needed.
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.Pp
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.Nm
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is an automatic and non-interactive upgrade. It is meant to be used as part of
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the development process to upgrade to locally built versions. It does not
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contain compatibility to help upgrade across larger changes, or to easily handle
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changes to configuration file formats, or other caveats. It places a burden on
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the system administrator/developer to know the system changes in detail and to
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do any necessary tasks manually.
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.Pp
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The
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.Xr sysupgrade 8
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program is by contrast an interactive program, meant to help upgrading across
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much larger development distances. It contains compatibility to automatically
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handle changes in configuration files and other larger changes.
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.Pp
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The options are as follows:
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.Bl -tag -width "12345678"
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.It Fl \-booting
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It's boot time, complete the system upgrade that was delayed. This is meant to
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be used by
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.Xr init 8
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through the
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2016-08-21 17:03:33 -04:00
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.Sy merge
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2016-02-18 16:16:02 -05:00
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boot target. This installs the
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.Pa /sysmerge
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directory onto the root filesystem and removes the
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.Pa /sysmerge
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directory.
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.It Fl \-cancel
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Cancel a pending upgrade that would trigger on the next boot. Remove the
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.Pa /sysmerge
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directory and restore the old
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.Xr kernel 7
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and
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.Xr initrd 7 .
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.It Fl w , Fl \-wait
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Wait until the next boot to complete the upgrade, rather than finishing it now.
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This installs into the
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.Pa /sysmerge
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directory instead and replaces the
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.Xr kernel 7
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with the new kernel
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and
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.Xr initrd 7
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with an initrd that runs
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.Sy /sysmerge/sbin/sysmerge --booting
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on boot through the
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.Sy chain-merge
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.Xr init 8
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boot target. Backups are made of the
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.Xr kernel 7
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and
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.Xr initrd 7
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such that the operation can be rolled back.
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.El
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.Sh FILES
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.Bl -tag -width "/boot/sortix.initrd.sysmerge.orig" -compact
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.It Pa /boot/sortix.bin
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system
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.Xr kernel 7
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.It Pa /boot/sortix.bin.sysmerge.orig
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system
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.Xr kernel 7
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(backup)
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.It Pa /boot/sortix.initrd
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system
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.Xr initrd 7
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.It Pa /boot/sortix.initrd.sysmerge.orig
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system
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.Xr initrd 7
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(backup)
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.It Pa /etc/machine
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processor platform of this installation
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.It Pa /etc/sortix-release
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the current system release
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.It Pa /etc/upgrade.conf
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controls the bootloader upgrade behavior (see
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.Xr upgrade.conf 5 )
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.It Pa /sysmerge
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pending upgrade is stored here
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.El
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.Sh SEE ALSO
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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 upgrade 7 ,
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.Xr sysinstall 8 ,
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.Xr sysupgrade 8
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