update-grub (via grub-mkconfig) generates the grub configuration by
concatenating the output of each snippet (from /etc/grub.d).

We need to redirect the output of `proxmox-boot-tool refresh`
to not end up with a syntactically wrong config in /boot/grub/grub.cfg
(which is not used in any case)

quickly tested with a test-installation of mine

Signed-off-by: Stoiko Ivanov <s.iva...@proxmox.com>
---
 proxmox-boot/000_proxmox_boot_header | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/proxmox-boot/000_proxmox_boot_header 
b/proxmox-boot/000_proxmox_boot_header
index 597f65a..106273e 100755
--- a/proxmox-boot/000_proxmox_boot_header
+++ b/proxmox-boot/000_proxmox_boot_header
@@ -18,7 +18,7 @@ if proxmox-boot-tool status --quiet; then
                warn "W: Running: 'proxmox-boot-tool refresh'"
                warn ""
 
-               proxmox-boot-tool refresh
+               proxmox-boot-tool refresh > /dev/null
        fi
 fi
 
-- 
2.30.2



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