openstack/ironic
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Merge "docs: revise notes around iso booting for clarity"

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Zuul 2024-05-13 16:37:25 +00:00 committed by Gerrit Code Review
commit dcace881bc
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devstack/lib/ironic
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@ -612,6 +612,9 @@ PHYSICAL_NETWORK=${NEUTRON_PHYSICAL_NETWORK:-${PHYSICAL_NETWORK:-}}
# NOTE(TheJulia): As of May 19th, 2023, mirrors.dotsrc.org was
# accessible via ipv4 and ipv6, it appears to be the only v6
# accessible tinycore mirror..
# NOTE(TheJulia): The TinyCore Image *is* only compatible with
# BIOS booting. iPXE loaders with UEFI mode will ERROR pointing
# to https://ipxe.org/err/7f22208e.
IRONIC_RAMDISK_IMAGE=${IRONIC_RAMDISK_IMAGE:-http://mirrors.dotsrc.org/tinycorelinux/14.x/x86/release/Core-current.iso}
IRONIC_LOADER_PATHS=${IRONIC_LOADER_PATHS:-}

5
doc/source/admin/ramdisk-boot.rst
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@ -113,6 +113,11 @@ For example,
This is a limitation of iPXE and the overall boot process of the
operating system where memory allocated by iPXE is released.
When choosing your boot ISO, your ISO image will need to be sufficient to boot
the hardware under normal conditions. For example, if the ISO is only
compatible with BIOS booting, then a host in UEFI mode will not boot.
This is not a limitation of Ironic, but an architectural limitation.
By default the Bare Metal service will cache the ISO locally and serve from its
HTTP server. If you want to avoid that, set the following: