grub_err_t ventoy_cmd_linux_chain_data(grub_extcmd_context_t ctxt, int argc, char **args);
grub_err_t ventoy_cmd_linux_locate_initrd(grub_extcmd_context_t ctxt, int argc, char **args);
grub_err_t ventoy_cmd_initrd_count(grub_extcmd_context_t ctxt, int argc, char **args);
+grub_err_t ventoy_cmd_valid_initrd_count(grub_extcmd_context_t ctxt, int argc, char **args);
grub_err_t ventoy_cmd_load_cpio(grub_extcmd_context_t ctxt, int argc, char **args);
int ventoy_cpio_newc_fill_head(void *buf, int filesize, void *filedata, const char *name);
grub_file_t ventoy_grub_file_open(enum grub_file_type type, const char *fmt, ...);