Signed-off-by: Stoiko Ivanov <s.iva...@proxmox.com>
---
proxmox-boot/functions | 8 ++++++++
proxmox-boot/zz-proxmox-boot | 4 +---
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/proxmox-boot/functions b/proxmox-boot/functions
index 6e19c20..4515a2d 100755
--- a/proxmox-boot/functions
+++ b/proxmox-boot/functions
@@ -101,3 +101,11 @@ loop_esp_list() {
"$@"
done
}
+
+get_first_line() {
+ file="$1"
+ while IFS= read -r line || [ -n "$line" ]; do
+ break
+ done < "${file}"
+ echo "$line"
+}
diff --git a/proxmox-boot/zz-proxmox-boot b/proxmox-boot/zz-proxmox-boot
index 90d4aa9..db73166 100755
--- a/proxmox-boot/zz-proxmox-boot
+++ b/proxmox-boot/zz-proxmox-boot
@@ -46,9 +46,7 @@ update_esps() {
fi
if [ -f /etc/kernel/cmdline ]; then
# we can have cmdline files with multiple or no new line at
all, handle both!
- while IFS= read -r CMDLINE || [ -n "$CMDLINE" ]; do
- break
- done < /etc/kernel/cmdline
+ CMDLINE=$(get_first_line /etc/kernel/cmdline)
echo ${CMDLINE} | grep -q 'root=' || \
{ warn "No root= parameter in /etc/kernel/cmdline
found!"; exit 1; }
else
--
2.30.2
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