Merge pull request #18558 from poettering/have-tpm2

ask the uefi firmware if TPM2 support is available
2021-02-12 15:49:20 +01:00
parent e81fd9dd23 537c10f937
commit e7a8f6b66f
5 changed files with 45 additions and 1 deletions
@@ -290,8 +290,11 @@ bool is_efi_boot(void) {
        if (cache < 0) {
                if (detect_container() > 0)
                        cache = false;
-                else
+                else {
                        cache = access("/sys/firmware/efi/", F_OK) >= 0;
+                        if (!cache && errno != ENOENT)
+                                log_debug_errno(errno, "Unable to test whether /sys/firmware/efi/ exists, assuming EFI not available: %m");
+                }
        }

        return cache;