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3b94406a9e
CVE-2020-10713 CVE-2020-14308 CVE-2020-14309 CVE-2020-14310 CVE-2020-14311 CVE-2020-15705 CVE-2020-15706 CVE-2020-15707 Signed-off-by: Peter Jones <pjones@redhat.com>
40 lines
1.8 KiB
Diff
40 lines
1.8 KiB
Diff
From 5c365350a3b1558114a385dc6c85fe2094247fcc Mon Sep 17 00:00:00 2001
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From: Javier Martinez Canillas <javierm@redhat.com>
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Date: Thu, 2 Apr 2020 11:07:24 +0200
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Subject: [PATCH 200/237] grub-switch-to-blscfg: Only mark GRUB as BLS
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supported if blsdir isn't set
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If the user set the blsdir environemnt variable to a path that is not the
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default where ostree writes the BLS snippets, the blscfg module won't be
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able to parse them and can lead to not having any menu entries on boot.
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So to minimize the risk of things going wrong when dropping the 15_ostree
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script used by ostree to create the menu entries, only mark the bootloader
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as BLS supported if the blsdir variable has not been set.
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Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
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---
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util/grub-switch-to-blscfg.in | 7 +++++--
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1 file changed, 5 insertions(+), 2 deletions(-)
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diff --git a/util/grub-switch-to-blscfg.in b/util/grub-switch-to-blscfg.in
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index a05a8d98554..4bbed8e4fe9 100644
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--- a/util/grub-switch-to-blscfg.in
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+++ b/util/grub-switch-to-blscfg.in
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@@ -267,8 +267,11 @@ copy_bls() {
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}
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# The grub2 EFI binary is not copied to the ESP as a part of an ostree
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-# transaction. Make sure a grub2 version with BLS support is installed.
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-if test -f /run/ostree-booted && test -d /sys/firmware/efi/efivars/; then
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+# transaction. Make sure a grub2 version with BLS support is installed
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+# but only do this if the blsdir is not set, to make sure that the BLS
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+# parsing module will search for the BLS snippets in the default path.
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+if test -f /run/ostree-booted && test -d /sys/firmware/efi/efivars && \
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+ ! ${grub_editenv} - list | grep -q blsdir; then
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grub_binary="$(find /usr/lib/ostree-boot/efi/EFI/${EFIDIR}/ -name grub*.efi)"
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cp ${grub_binary} ${grubdir} || exit 1
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# Create a hidden file to indicate that grub2 now has BLS support.
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--
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2.26.2
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