From fc457a49d7a51db6c50cc8f7edd471faed4e528f Mon Sep 17 00:00:00 2001 From: Arne Wiebalck Date: Mon, 29 Mar 2021 09:45:41 +0200 Subject: [PATCH] [doc] Warning about out-of-sync ESPs for UEFI software RAID Add a note that the ESPs created by the IPA may get out of sync. Change-Id: Ie2553eac42ed2e36a9be0b9720a79269a08e3252 --- doc/source/admin/raid.rst | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/doc/source/admin/raid.rst b/doc/source/admin/raid.rst index 06a7c3f276..5ffbbd5bf4 100644 --- a/doc/source/admin/raid.rst +++ b/doc/source/admin/raid.rst @@ -400,6 +400,14 @@ There are certain limitations to be aware of: * There is no support for partition images, only whole-disk images are supported with Software RAID. See :doc:`/install/configure-glance-images`. +* In UEFI mode, the Ironic Python Agent creates EFI system partitions (ESPs) + for the bootloader and the boot configuration (grub.cfg or grubenv) on all + holder devices. The content of these partitions is populated upon deployment + from the deployed user image. Depending on how the partitions are mounted, + the content of the partitions may get out of sync, e.g. when new kernels + are installed or the bootloader is updated, so measures to keep these + partitions in sync need to be taken. + Image requirements ------------------