grep menuentry /boot/grub/grub.cfg
if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
  menuentry_id_option=""
export menuentry_id_option
menuentry 'Proxmox VE GNU/Linux' --class proxmox --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-49d80c739f2773dd' {
submenu 'Advanced options for Proxmox VE GNU/Linux' $menuentry_id_option 'gnulinux-advanced-49d80c739f2773dd' {
	menuentry 'Proxmox VE GNU/Linux, with Linux 5.15.12-1-pve' --class proxmox --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.15.12-1-pve-advanced-49d80c739f2773dd' {
	menuentry 'Proxmox VE GNU/Linux, with Linux 5.15.12-1-pve (recovery mode)' --class proxmox --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.15.12-1-pve-recovery-49d80c739f2773dd' {
	menuentry 'Proxmox VE GNU/Linux, with Linux 5.13.19-3-pve' --class proxmox --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.13.19-3-pve-advanced-49d80c739f2773dd' {
	menuentry 'Proxmox VE GNU/Linux, with Linux 5.13.19-3-pve (recovery mode)' --class proxmox --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.13.19-3-pve-recovery-49d80c739f2773dd' {
	menuentry 'Proxmox VE GNU/Linux, with Linux 5.13.19-2-pve' --class proxmox --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.13.19-2-pve-advanced-49d80c739f2773dd' {
	menuentry 'Proxmox VE GNU/Linux, with Linux 5.13.19-2-pve (recovery mode)' --class proxmox --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.13.19-2-pve-recovery-49d80c739f2773dd' {
	menuentry 'Proxmox VE GNU/Linux, with Linux 5.11.22-7-pve' --class proxmox --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.11.22-7-pve-advanced-49d80c739f2773dd' {
	menuentry 'Proxmox VE GNU/Linux, with Linux 5.11.22-7-pve (recovery mode)' --class proxmox --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.11.22-7-pve-recovery-49d80c739f2773dd' {
menuentry "Memory test (memtest86+)" {
menuentry "Memory test (memtest86+, serial console 115200)" {
menuentry "Memory test (memtest86+, experimental multiboot)" {
menuentry "Memory test (memtest86+, serial console 115200, experimental multiboot)" {
menuentry 'System setup' $menuentry_id_option 'uefi-firmware' {