Man1 - grub-file.1

grub-file - check file type

file OPTIONS FILE

Check if FILE is of specified type.

–is-i386-xen-pae-domu

Check if FILE can be booted as i386 PAE Xen unprivileged guest kernel

–is-x86_64-xen-domu

Check if FILE can be booted as x86_64 Xen unprivileged guest kernel

–is-x86-xen-dom0

Check if FILE can be used as Xen x86 privileged guest kernel

–is-x86-multiboot

Check if FILE can be used as x86 multiboot kernel

–is-x86-multiboot2 Check if FILE can be used as x86 multiboot2 kernel

–is-arm-linux

Check if FILE is ARM Linux

–is-arm64-linux

Check if FILE is ARM64 Linux

–is-ia64-linux

Check if FILE is IA64 Linux

–is-mips-linux

Check if FILE is MIPS Linux

–is-mipsel-linux

Check if FILE is MIPSEL Linux

–is-sparc64-linux

Check if FILE is SPARC64 Linux

–is-powerpc-linux

Check if FILE is POWERPC Linux

–is-x86-linux

Check if FILE is x86 Linux

–is-x86-linux32

Check if FILE is x86 Linux supporting 32-bit protocol

–is-x86-kfreebsd

Check if FILE is x86 kFreeBSD

–is-i386-kfreebsd

Check if FILE is i386 kFreeBSD

–is-x86_64-kfreebsd

Check if FILE is x86_64 kFreeBSD

–is-x86-knetbsd

Check if FILE is x86 kNetBSD

–is-i386-knetbsd

Check if FILE is i386 kNetBSD

–is-x86_64-knetbsd Check if FILE is x86_64 kNetBSD

–is-i386-efi

Check if FILE is i386 EFI file

–is-x86_64-efi

Check if FILE is x86_64 EFI file

–is-ia64-efi

Check if FILE is IA64 EFI file

–is-arm64-efi

Check if FILE is ARM64 EFI file

–is-arm-efi

Check if FILE is ARM EFI file

–is-riscv32-efi

Check if FILE is RISC-V 32bit EFI file

–is-riscv64-efi

Check if FILE is RISC-V 64bit EFI file

–is-hibernated-hiberfil

Check if FILE is hiberfil.sys in hibernated state

–is-x86_64-xnu

Check if FILE is x86_64 XNU (Mac OS X kernel)

–is-i386-xnu

Check if FILE is i386 XNU (Mac OS X kernel)

–is-xnu-hibr

Check if FILE is XNU (Mac OS X kernel) hibernated image

–is-x86-bios-bootsector

Check if FILE is BIOS bootsector

-h, –help Display this help and exit. -u, –usage Display the usage of this command and exit.

The full documentation for grub-file is maintained as a Texinfo manual. If the info and grub-file programs are properly installed at your site, the command

info grub-file

should give you access to the complete manual.