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Burn the ISO to disk. On Linux and macOS, you can use `dd`. On Windows, you can use https://rufus.ie/[Rufus] in "DD Image" mode.
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Running Fedora CoreOS directly from RAM
 
The Fedora CoreOS live environment is a fully functional copy of Fedora CoreOS. It can provision itself via Ignition, execute containers, and so on. The live environment can be used to xref:bare-metal.adoc[install Fedora CoreOS to disk], and can also be used to run Fedora CoreOS directly from RAM.
 
This guide shows how to boot a transient Fedora CoreOS (FCOS) system via ISO, PXE, or iPXE. For more about the live ISO and PXE images, see the xref:live-reference.adoc[live image reference].
 
Prerequisites
Pré-requisitos
Before booting FCOS, you must have an Ignition configuration file. If you do not have one, see xref:producing-ign.adoc[Producing an Ignition File].
 
If you're booting from PXE or iPXE, you must host the Ignition config on a reachable HTTP(S) or TFTP server. Booting the live PXE image requires at least 2 GiB of RAM with the `coreos.live.rootfs_url` kernel argument, and 4 GiB otherwise.
 
Booting via ISO
 
The live ISO image can be booted from a physical DVD disc, from a USB stick, or from a virtual CD drive via lights-out management (LOM) firmware.
 
To boot from the ISO image, follow these steps:
 
Download the ISO image:
 
podman run --security-opt label=disable --pull=always --rm -v .:/data -w /data \
quay.io/coreos/coreos-installer:release download -f iso
 
Use `coreos-installer iso customize` to customize the ISO for your needs. In this example we assume an Ignition config exists in a file `config.ign`. We also add the optional `coreos.liveiso.fromram` kernel argument to the live boot.
 
The `coreos.liveiso.fromram` is optional and is used in cases where you want to have no references to the booted media (ISO) once the system is up and running. This enables use cases like removing the media after boot or rewriting the disk the booted media is on, but does require more memory.
 
KERNEL_ARG='--live-karg-append=coreos.liveiso.fromram'
IGNITION_ARG='--live-ignition=./config.ign'
podman run --security-opt label=disable --pull=always --rm -v .:/data -w /data \
quay.io/coreos/coreos-installer:release iso customize $KERNEL_ARG $IGNITION_ARG \
-o customized.iso fedora-coreos-{stable-version}-live.x86_64.iso
 
Burn the ISO to disk. On Linux and macOS, you can use `dd`. On Windows, you can use https://rufus.ie/[Rufus] in "DD Image" mode.
 
Boot it on the target system.
 
Booting via PXE
 
To boot from PXE, follow these steps:
 
Download an FCOS PXE kernel, initramfs, and rootfs image:
 
podman run --security-opt label=disable --pull=always --rm -v .:/data -w /data \
quay.io/coreos/coreos-installer:release download -f pxe
 
Follow this example `pxelinux.cfg` for booting the installer images with PXELINUX and running Ignition:
 
DEFAULT pxeboot
TIMEOUT 20
PROMPT 0
LABEL pxeboot
KERNEL fedora-coreos-{stable-version}-live-kernel-x86_64
APPEND initrd=fedora-coreos-{stable-version}-live-initramfs.x86_64.img,fedora-coreos-{stable-version}-live-rootfs.x86_64.img ignition.firstboot ignition.platform.id=metal ignition.config.url=http://192.168.1.101/config.ign
IPAPPEND 2
 
Booting via iPXE
 
An iPXE-capable machine needs to be provided with a relevant Boot Script to fetch and load FCOS artifacts.
 
The example below shows how to load those directly from Fedora infrastructure. For performance and reliability reasons it is recommended to mirror them on the local infrastructure, and then tweak the `BASEURL` as needed.
 
#!ipxe
 
set STREAM stable
set VERSION {stable-version}
set CONFIGURL https://example.com/config.ign
 
set BASEURL https://builds.coreos.fedoraproject.org/prod/streams/$\{STREAM}/builds/$\{VERSION}/x86_64
 
kernel $\{BASEURL}/fedora-coreos-$\{VERSION}-live-kernel-x86_64 initrd=main coreos.live.rootfs_url=$\{BASEURL}/fedora-coreos-$\{VERSION}-live-rootfs.x86_64.img ignition.firstboot ignition.platform.id=metal ignition.config.url=$\{CONFIGURL}
initrd --name main $\{BASEURL}/fedora-coreos-$\{VERSION}-live-initramfs.x86_64.img
 
boot
 
User avatar anonymous

Suggestion added

Grave a ISO em um disco. No Linux e macOS, você pode usar `dd`. No Windows, você pode usar https://rufus.ie/[Rufus] no modo "Imagem DD".

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Grave a ISO em um disco. No Linux e macOS, você pode usar `dd`. No Windows, você pode usar https://rufus.ie/[Rufus] no modo "Imagem DD".
2 years ago

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Suggestion added
Burn the ISO to disk. On Linux and macOS, you can use `dd`. On Windows, you can use https://rufus.ie/[Rufus] in "DD Image" mode.
Grave a ISO em um disco. No Linux e macOS, você pode usar `dd`. No Windows, você pode usar https://rufus.ie/[Rufus] no modo "Imagem DD".
2 years ago
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9835630 String information

Source string description
type: Plain text
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placeholders:r"`[\w.\/\-_=@&*:$●+~()\] ]*`"
Source string location
pages/live-booting.adoc:42
String age
2 years ago
Last updated
a year ago
Source string age
2 years ago
Translation file
po/pt_BR/master/pages/live-booting.po, string 15