[PATCH] arm64: properly install vmlinuz.efi

[Catalin Marinas]

On Thu, Dec 14, 2023 at 11:18:50AM -0500, Josef Bacik wrote:
> If you select CONFIG_EFI_ZBOOT, we will generate vmlinuz.efi, and then
> when we go to install the kernel we'll install the vmlinux instead
> because install.sh only recognizes Image.gz as wanting the compressed
> install image.  With CONFIG_EFI_ZBOOT we don't get the proper kernel
> installed, which means it doesn't boot, which makes for a very confused
> and subsequently angry kernel developer.
> 
> Fix this by properly installing our compressed kernel if we've enabled
> CONFIG_EFI_ZBOOT.
> 
> Signed-off-by: Josef Bacik <josef at toxicpanda.com>
> ---
>  arch/arm64/boot/install.sh | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/install.sh b/arch/arm64/boot/install.sh
> index 7399d706967a..9b7a09808a3d 100755
> --- a/arch/arm64/boot/install.sh
> +++ b/arch/arm64/boot/install.sh
> @@ -17,7 +17,8 @@
>  #   $3 - kernel map file
>  #   $4 - default install path (blank if root directory)
>  
> -if [ "$(basename $2)" = "Image.gz" ]; then
> +if [ "$(basename $2)" = "Image.gz" ] || [ "$(basename $2)" = "vmlinuz.efi" ]
> +then
>  # Compressed install
>    echo "Installing compressed kernel"
>    base=vmlinuz

+ Ard who added the EFI_ZBOOT support.

If we go with this fix we should probably also add:

Fixes: c37b830fef13 ("arm64: efi: enable generic EFI compressed boot")
Cc: <stable at vger.kernel.org> # 6.1.x

But is arm64 the only one with this issue?

-- 
Catalin