为什么我的编译内核没有显示在GRUB引导菜单中？

我正在尝试编译并安装自己的内核（5.2.0-rc7），直到我重新引导以实际引导到它并无法从GRUB引导菜单中选择它为止，一切似乎都可以正常工作。我已经根据Arch Wiki上的说明编写了一个脚本（并手动完成了该脚本），并为我进行了编译和安装。一切都编译make modules_install正确，将正确的文件放在/ lib / modules文件夹中，并且正确的映像似乎在/ boot目录中。mkinitcpio完成没有错误，当我运行时，grub-mkconfig它似乎找到了新安装的自定义内核，并提供了以下输出：

Generating grub configuration file ...
Found linux image: /boot/vmlinuz-linux
Found initrd image: /boot/intel-ucode.img /boot/initramfs-linux.img
Found fallback initrd image(s) in /boot: initramfs-linux-fallback.img
Found linux image: /boot/vmlinuz-5.2.0-rc7-test
Found initrd image: /boot/intel-ucode.img /boot/initramfs-5.2.0-rc7-test.img
done

当我查看生成的grub.cfg文件时，我看到它确实包含了预期的新安装的内核，如下所示：

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
insmod part_gpt
insmod part_msdos
if [ -s $prefix/grubenv ]; then
  load_env
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="0"
fi

if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
else
  menuentry_id_option=""
fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}

function load_video {
  if [ x$feature_all_video_module = xy ]; then
    insmod all_video
  else
    insmod efi_gop
    insmod efi_uga
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
  fi
}

if [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-ieee1275='ieee1275//disk@0,msdos1' --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1  9c56060e-d76c-4cea-8c41-137092164107
else
  search --no-floppy --fs-uuid --set=root 9c56060e-d76c-4cea-8c41-137092164107
fi
    font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
fi
terminal_input console
terminal_output gfxterm
if [ x$feature_timeout_style = xy ] ; then
  set timeout_style=menu
  set timeout=5
# Fallback normal timeout code in case the timeout_style feature is
# unavailable.
else
  set timeout=5
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Arch Linux' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-9c56060e-d76c-4cea-8c41-137092164107' {
    load_video
    set gfxpayload=keep
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='hd0,msdos1'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-ieee1275='ieee1275//disk@0,msdos1' --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1  9c56060e-d76c-4cea-8c41-137092164107
    else
      search --no-floppy --fs-uuid --set=root 9c56060e-d76c-4cea-8c41-137092164107
    fi
    echo    'Loading Linux linux ...'
    linux   /boot/vmlinuz-linux root=UUID=9c56060e-d76c-4cea-8c41-137092164107 rw  quiet
    echo    'Loading initial ramdisk ...'
    initrd  /boot/intel-ucode.img /boot/initramfs-linux.img
}
submenu 'Advanced options for Arch Linux' $menuentry_id_option 'gnulinux-advanced-9c56060e-d76c-4cea-8c41-137092164107' {
    menuentry 'Arch Linux, with Linux linux' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-advanced-9c56060e-d76c-4cea-8c41-137092164107' {
        load_video
        set gfxpayload=keep
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='hd0,msdos1'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-ieee1275='ieee1275//disk@0,msdos1' --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1  9c56060e-d76c-4cea-8c41-137092164107
        else
          search --no-floppy --fs-uuid --set=root 9c56060e-d76c-4cea-8c41-137092164107
        fi
        echo    'Loading Linux linux ...'
        linux   /boot/vmlinuz-linux root=UUID=9c56060e-d76c-4cea-8c41-137092164107 rw  quiet
        echo    'Loading initial ramdisk ...'
        initrd  /boot/intel-ucode.img /boot/initramfs-linux.img
    }
    menuentry 'Arch Linux, with Linux linux (fallback initramfs)' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-fallback-9c56060e-d76c-4cea-8c41-137092164107' {
        load_video
        set gfxpayload=keep
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='hd0,msdos1'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-ieee1275='ieee1275//disk@0,msdos1' --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1  9c56060e-d76c-4cea-8c41-137092164107
        else
          search --no-floppy --fs-uuid --set=root 9c56060e-d76c-4cea-8c41-137092164107
        fi
        echo    'Loading Linux linux ...'
        linux   /boot/vmlinuz-linux root=UUID=9c56060e-d76c-4cea-8c41-137092164107 rw  quiet
        echo    'Loading initial ramdisk ...'
        initrd  /boot/initramfs-linux-fallback.img
    }
    menuentry 'Arch Linux, with Linux 5.2.0-rc7-test' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.2.0-rc7-test-advanced-9c56060e-d76c-4cea-8c41-137092164107' {
        load_video
        set gfxpayload=keep
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='hd0,msdos1'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-ieee1275='ieee1275//disk@0,msdos1' --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1  9c56060e-d76c-4cea-8c41-137092164107
        else
          search --no-floppy --fs-uuid --set=root 9c56060e-d76c-4cea-8c41-137092164107
        fi
        echo    'Loading Linux 5.2.0-rc7-test ...'
        linux   /boot/vmlinuz-5.2.0-rc7-test root=UUID=9c56060e-d76c-4cea-8c41-137092164107 rw  quiet
        echo    'Loading initial ramdisk ...'
        initrd  /boot/intel-ucode.img /boot/initramfs-5.2.0-rc7-test.img
    }
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f  ${config_directory}/custom.cfg ]; then
  source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f  $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###

但是，当我重新启动虚拟机时，我看到Grub菜单没有列出新安装的内核，而仅列出了标准内核。根据Arch Wiki的描述，所有需要做的就是运行grub-mkconfig命令以生成新的grub配置文件，如果它反映在配置文件中，则应该显示出来，但事实并非如此。

我想念什么？如何使新安装的内核显示在Grub引导菜单中？谁能指出我正确的方向？谢谢。

我正在5.1.16-arch1-1-ARCH使用Virtualbox 6.0.4 r128413运行的Arch Linux上执行此操作