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Fix false negative of clevis detection in initramfs #2

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Fix false negative of clevis detection in initramfs #2

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7 changes: 6 additions & 1 deletion autodecrypt.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -153,6 +153,7 @@ function test_clevis_unlock {
}

function check_initramfs_hooks {
local clevis_found=0
echo "Checking initramfs hooks..."

if [ ! -f "/usr/share/initramfs-tools/hooks/clevis" ]; then
Expand All @@ -161,7 +162,11 @@ function check_initramfs_hooks {
fi

# Check if clevis hook is in the generated initramfs
if ! lsinitramfs /boot/initrd.img-$(uname -r) 2>/dev/null | grep -q clevis; then
set +o pipefail
# if grep finds a match, lsinitramfs gets SIGPIPE but we still want a success
lsinitramfs /boot/initrd.img-$(uname -r) 2>/dev/null | grep -q clevis && clevis_found=1
set -o pipefail
if [ "$clevis_found" = 0 ]; then
echo "WARNING: Clevis not found in current initramfs. Will update initramfs."
return 1
fi
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