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Diffstat (limited to 'doc/guix.texi')
| -rw-r--r-- | doc/guix.texi | 43 |
1 files changed, 23 insertions, 20 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index ff2e582347..e8458ad8d8 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -40,7 +40,7 @@ Copyright @copyright{} 2016, 2017, 2018, 2019, 2020 Julien Lepiller@* Copyright @copyright{} 2016 Alex ter Weele@* Copyright @copyright{} 2016, 2017, 2018, 2019 Christopher Baines@* Copyright @copyright{} 2017, 2018, 2019 Clément Lassieur@* -Copyright @copyright{} 2017, 2018 Mathieu Othacehe@* +Copyright @copyright{} 2017, 2018, 2020 Mathieu Othacehe@* Copyright @copyright{} 2017 Federico Beffa@* Copyright @copyright{} 2017, 2018 Carlo Zancanaro@* Copyright @copyright{} 2017 Thomas Danckaert@* @@ -2568,8 +2568,7 @@ The installation image described above was built using the @command{guix system} command, specifically: @example -guix system disk-image --file-system-type=iso9660 \ - gnu/system/install.scm +guix system disk-image -t iso9660 gnu/system/install.scm @end example Have a look at @file{gnu/system/install.scm} in the source tree, @@ -29375,24 +29374,28 @@ a value. Docker images are built to contain exactly what they need, so the @option{--image-size} option is ignored in the case of @code{docker-image}. -You can specify the root file system type by using the -@option{--file-system-type} option. It defaults to @code{ext4}. When its -value is @code{iso9660}, the @option{--label} option can be used to specify -a volume ID with @code{disk-image}. +The @code{disk-image} command can produce various image types. The +image type can be selected using the @command{--image-type} option. It +defaults to @code{raw}. When its value is @code{iso9660}, the +@option{--label} option can be used to specify a volume ID with +@code{disk-image}. -When using @code{vm-image}, the returned image is in qcow2 format, which -the QEMU emulator can efficiently use. @xref{Running Guix in a VM}, -for more information on how to run the image in a virtual machine. - -When using @code{disk-image}, a raw disk image is produced; it can be -copied as is to a USB stick, for instance. Assuming @code{/dev/sdc} is -the device corresponding to a USB stick, one can copy the image to it -using the following command: +When using the @code{raw} image type, a raw disk image is produced; it +can be copied as is to a USB stick, for instance. Assuming +@code{/dev/sdc} is the device corresponding to a USB stick, one can copy +the image to it using the following command: @example # dd if=$(guix system disk-image my-os.scm) of=/dev/sdc status=progress @end example +The @code{--list-image-types} command lists all the available image +types. + +When using @code{vm-image}, the returned image is in qcow2 format, which +the QEMU emulator can efficiently use. @xref{Running Guix in a VM}, +for more information on how to run the image in a virtual machine. + When using @code{docker-image}, a Docker image is produced. Guix builds the image from scratch, not from a pre-existing Docker base image. As a result, it contains @emph{exactly} what you define in the operating @@ -29494,17 +29497,17 @@ information, one can rebuild the image to make sure it really contains what it pretends to contain; or they could use that to derive a variant of the image. -@item --file-system-type=@var{type} +@item --image-type=@var{type} @itemx -t @var{type} -For the @code{disk-image} action, create a file system of the given -@var{type} on the image. +For the @code{disk-image} action, create an image with given @var{type}. -When this option is omitted, @command{guix system} uses @code{ext4}. +When this option is omitted, @command{guix system} uses the @code{raw} +image type. @cindex ISO-9660 format @cindex CD image format @cindex DVD image format -@option{--file-system-type=iso9660} produces an ISO-9660 image, suitable +@option{--image-type=iso9660} produces an ISO-9660 image, suitable for burning on CDs and DVDs. @item --image-size=@var{size} |