28 lines
1.2 KiB
Diff
28 lines
1.2 KiB
Diff
Change 'grub-mkrescue' to honor the 'GRUB_FAT_SERIAL_NUMBER'
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environment variable. That way, the caller can specify a fixed
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serial number (instead of the randomly chosen one) to create EFI
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images (the 'efi.img' file) that are reproducible bit-for-bit.
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Patch by Ludovic Courtès <ludo@gnu.org>.
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--- grub-2.02/util/grub-mkrescue.c 2019-04-20 19:15:26.180242812 +0200
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+++ grub-2.02/util/grub-mkrescue.c 2019-04-20 21:56:34.672370849 +0200
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@@ -788,8 +788,15 @@ main (int argc, char *argv[])
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efiimgfat = grub_util_path_concat (2, iso9660_dir, "efi.img");
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int rv;
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- rv = grub_util_exec ((const char * []) { "mformat", "-C", "-f", "2880", "-L", "16", "-i",
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- efiimgfat, "::", NULL });
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+
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+ const char *fat_serial_number = getenv ("GRUB_FAT_SERIAL_NUMBER");
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+ const char *mformat_args[] =
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+ { "mformat", "-C", "-f", "2880", "-L", "16",
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+ fat_serial_number != NULL ? "-N" : "-C",
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+ fat_serial_number != NULL ? fat_serial_number : "-C",
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+ "-i", efiimgfat, "::", NULL };
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+
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+ rv = grub_util_exec (mformat_args);
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if (rv != 0)
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grub_util_error ("`%s` invocation failed\n", "mformat");
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rv = grub_util_exec ((const char * []) { "mcopy", "-s", "-i", efiimgfat, efidir_efi, "::/", NULL });
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