From 7953b193eed6eb4da5b7f0525b25ea8bb2a6e7dd Mon Sep 17 00:00:00 2001 From: Benjamin Gilbert Date: Thu, 15 Oct 2020 19:03:10 -0400 Subject: [PATCH] *: adjust live RAM requirements Require 2 GiB of RAM for live PXE if using coreos.live.rootfs_url and 3 GiB if using an appended initrd. Live ISO no longer has any unusual RAM requirements, so drop that caveat entirely. --- modules/ROOT/pages/bare-metal.adoc | 4 ++-- modules/ROOT/pages/live-booting-ipxe.adoc | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/modules/ROOT/pages/bare-metal.adoc b/modules/ROOT/pages/bare-metal.adoc index aab18d2a..acf1430f 100644 --- a/modules/ROOT/pages/bare-metal.adoc +++ b/modules/ROOT/pages/bare-metal.adoc @@ -21,7 +21,7 @@ podman run --privileged --pull=always --rm -v .:/data -w /data \ quay.io/coreos/coreos-installer:release download -f iso ---- + -NOTE: The live system requires at least 3 GiB of RAM. You can boot it in either legacy BIOS or UEFI mode, regardless of what mode the OS will use once installed. +NOTE: You can boot the live ISO in either legacy BIOS or UEFI mode, regardless of what mode the OS will use once installed. + . Burn the ISO to disk and boot it on the target system. The ISO is capable of bringing up a fully functioning FCOS system purely from memory (i.e. without using any disk storage). Once booted, you will have access to a bash command prompt. . You can now run `coreos-installer`: @@ -46,7 +46,7 @@ podman run --privileged --pull=always --rm -v .:/data -w /data \ quay.io/coreos/coreos-installer:release download -f pxe ---- + -NOTE: You can install in either legacy boot (BIOS) mode or in UEFI mode, regardless of what mode the OS will use once installed. +NOTE: Booting the live PXE image requires at least 2 GiB of RAM with the `coreos.live.rootfs_url` kernel argument, and 3 GiB otherwise. You can install in either legacy boot (BIOS) mode or in UEFI mode, regardless of what mode the OS will use once installed. + . Follow this example `pxelinux.cfg` for booting the installer images with PXELINUX: + diff --git a/modules/ROOT/pages/live-booting-ipxe.adoc b/modules/ROOT/pages/live-booting-ipxe.adoc index 79cccc89..852da78e 100644 --- a/modules/ROOT/pages/live-booting-ipxe.adoc +++ b/modules/ROOT/pages/live-booting-ipxe.adoc @@ -6,7 +6,7 @@ This guide shows how to boot a transient Fedora CoreOS (FCOS) system via iPXE. B Before booting FCOS, you must have an Ignition configuration file and host it somewhere (e.g. on a reachable web server). If you do not have one, see xref:producing-ign.adoc[Producing an Ignition File]. -NOTE: The live system requires at least 3 GiB of RAM. +NOTE: Booting the live PXE image requires at least 2 GiB of RAM with the `coreos.live.rootfs_url` kernel argument, and 3 GiB otherwise. == PXE images