Hi,

After installing NEON over old MX Linux partition on my dual boot (win linux) HP Zbook UEFI laptop i got this message:

Error: symbol "grub is lockdown" not found boot error

I can boot if I go to system setup and then pick neon among boot options, and then windows or Neon.

How can I repair grub?

This is windows boot manager data:

Code: Select all

insmod part_gpt
insmod fat
set root='hd0,gpt1'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1  0877-7A15
else
  search --no-floppy --fs-uuid --set=root 0877-7A15
fi
chainloader /EFI/Microsoft/Boot/bootmgfw.efi

This is Neon GNU/Linux data:

Code: Select all

recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
set root='hd0,gpt5'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  e36a44e9-dc39-4c7d-af9a-2d3ef1b0bd95
else
  search --no-floppy --fs-uuid --set=root e36a44e9-dc39-4c7d-af9a-2d3ef1b0bd95
fi
linux   /boot/vmlinuz-5.11.0-38-generic root=UUID=e36a44e9-dc39-4c7d-af9a-2d3ef1b0bd95 ro  quiet splash $vt_handoff
initrd   /boot/initrd.img-5.11.0-38-generic