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-rw-r--r--debian/patches/grub-install-extra-removable.patch202
1 files changed, 202 insertions, 0 deletions
diff --git a/debian/patches/grub-install-extra-removable.patch b/debian/patches/grub-install-extra-removable.patch
new file mode 100644
index 0000000..1e7d2b4
--- /dev/null
+++ b/debian/patches/grub-install-extra-removable.patch
@@ -0,0 +1,202 @@
+From a0bfbdf9139bc127d28c4102b941ee504f7f0041 Mon Sep 17 00:00:00 2001
+From: Steve McIntyre <93sam@debian.org>
+Date: Wed, 3 Dec 2014 01:25:12 +0000
+Subject: Add support for forcing EFI installation to the removable media path
+
+Add an extra option to grub-install "--force-extra-removable". On EFI
+platforms, this will cause an extra copy of the grub-efi image to be
+written to the appropriate removable media patch
+/boot/efi/EFI/BOOT/BOOT$ARCH.EFI as well. This will help with broken
+UEFI implementations where the firmware does not work when configured
+with new boot paths.
+
+Signed-off-by: Steve McIntyre <93sam@debian.org>
+
+Bug-Debian: https://bugs.debian.org/767037 https://bugs.debian.org/773092
+Forwarded: Not yet
+Last-Update: 2021-09-24
+
+Patch-Name: grub-install-extra-removable.patch
+---
+ util/grub-install.c | 110 +++++++++++++++++++++++++++++++++++++++++++-
+ 1 file changed, 108 insertions(+), 2 deletions(-)
+
+diff --git a/util/grub-install.c b/util/grub-install.c
+index 2304cc5c4..b51fe4710 100644
+--- a/util/grub-install.c
++++ b/util/grub-install.c
+@@ -56,6 +56,7 @@
+
+ static char *target;
+ static int removable = 0;
++static int force_extra_removable = 0;
+ static int recheck = 0;
+ static int update_nvram = 1;
+ static char *install_device = NULL;
+@@ -113,7 +114,8 @@ enum
+ OPTION_LABEL_BGCOLOR,
+ OPTION_PRODUCT_VERSION,
+ OPTION_UEFI_SECURE_BOOT,
+- OPTION_NO_UEFI_SECURE_BOOT
++ OPTION_NO_UEFI_SECURE_BOOT,
++ OPTION_FORCE_EXTRA_REMOVABLE
+ };
+
+ static int fs_probe = 1;
+@@ -216,6 +218,10 @@ argp_parser (int key, char *arg, struct argp_state *state)
+ removable = 1;
+ return 0;
+
++ case OPTION_FORCE_EXTRA_REMOVABLE:
++ force_extra_removable = 1;
++ return 0;
++
+ case OPTION_ALLOW_FLOPPY:
+ allow_floppy = 1;
+ return 0;
+@@ -322,6 +328,9 @@ static struct argp_option options[] = {
+ N_("do not install an image usable with UEFI Secure Boot, even if the "
+ "system was currently started using it. "
+ "This option is only available on EFI."), 2},
++ {"force-extra-removable", OPTION_FORCE_EXTRA_REMOVABLE, 0, 0,
++ N_("force installation to the removable media path also. "
++ "This option is only available on EFI."), 2},
+ {0, 0, 0, 0, 0, 0}
+ };
+
+@@ -847,6 +856,91 @@ fill_core_services (const char *core_services)
+ free (sysv_plist);
+ }
+
++/* Helper routine for also_install_removable() below. Walk through the
++ specified dir, looking to see if there is a file/dir that matches
++ the search string exactly, but in a case-insensitive manner. If so,
++ return a copy of the exact file/dir that *does* exist. If not,
++ return NULL */
++static char *
++check_component_exists(const char *dir,
++ const char *search)
++{
++ grub_util_fd_dir_t d;
++ grub_util_fd_dirent_t de;
++ char *found = NULL;
++
++ d = grub_util_fd_opendir (dir);
++ if (!d)
++ grub_util_error (_("cannot open directory `%s': %s"),
++ dir, grub_util_fd_strerror ());
++
++ while ((de = grub_util_fd_readdir (d)))
++ {
++ if (strcasecmp (de->d_name, search) == 0)
++ {
++ found = xstrdup (de->d_name);
++ break;
++ }
++ }
++ grub_util_fd_closedir (d);
++ return found;
++}
++
++/* Some complex directory-handling stuff in here, to cope with
++ * case-insensitive FAT/VFAT filesystem semantics. Ugh. */
++static void
++also_install_removable(const char *src,
++ const char *base_efidir,
++ const char *efi_suffix_upper)
++{
++ char *efi_file = NULL;
++ char *dst = NULL;
++ char *cur = NULL;
++ char *found = NULL;
++
++ if (!efi_suffix_upper)
++ grub_util_error ("%s", _("efi_suffix_upper not set"));
++ efi_file = xasprintf ("BOOT%s.EFI", efi_suffix_upper);
++
++ /* We need to install in $base_efidir/EFI/BOOT/$efi_file, but we
++ * need to cope with case-insensitive stuff here. Build the path one
++ * component at a time, checking for existing matches each time. */
++
++ /* Look for "EFI" in base_efidir. Make it if it does not exist in
++ * some form. */
++ found = check_component_exists(base_efidir, "EFI");
++ if (found == NULL)
++ found = xstrdup("EFI");
++ dst = grub_util_path_concat (2, base_efidir, found);
++ cur = xstrdup (dst);
++ free (dst);
++ free (found);
++ grub_install_mkdir_p (cur);
++
++ /* Now BOOT */
++ found = check_component_exists(cur, "BOOT");
++ if (found == NULL)
++ found = xstrdup("BOOT");
++ dst = grub_util_path_concat (2, cur, found);
++ cur = xstrdup (dst);
++ free (dst);
++ free (found);
++ grub_install_mkdir_p (cur);
++
++ /* Now $efi_file */
++ found = check_component_exists(cur, efi_file);
++ if (found == NULL)
++ found = xstrdup(efi_file);
++ dst = grub_util_path_concat (2, cur, found);
++ cur = xstrdup (dst);
++ free (dst);
++ free (found);
++ grub_install_copy_file (src, cur, 1);
++
++ free (cur);
++ free (efi_file);
++}
++
+ int
+ main (int argc, char *argv[])
+ {
+@@ -864,6 +958,7 @@ main (int argc, char *argv[])
+ char *relative_grubdir;
+ char **efidir_device_names = NULL;
+ grub_device_t efidir_grub_dev = NULL;
++ char *base_efidir = NULL;
+ char *efidir_grub_devname;
+ int efidir_is_mac = 0;
+ int is_prep = 0;
+@@ -896,6 +991,9 @@ main (int argc, char *argv[])
+ bootloader_id = xstrdup ("grub");
+ }
+
++ if (removable && force_extra_removable)
++ grub_util_error (_("Invalid to use both --removable and --force_extra_removable"));
++
+ if (!grub_install_source_directory)
+ {
+ if (!target)
+@@ -1115,6 +1213,8 @@ main (int argc, char *argv[])
+ if (!efidir_is_mac && grub_strcmp (fs->name, "fat") != 0)
+ grub_util_error (_("%s doesn't look like an EFI partition"), efidir);
+
++ base_efidir = xstrdup(efidir);
++
+ /* The EFI specification requires that an EFI System Partition must
+ contain an "EFI" subdirectory, and that OS loaders are stored in
+ subdirectories below EFI. Vendors are expected to pick names that do
+@@ -2048,9 +2148,15 @@ main (int argc, char *argv[])
+ fprintf (config_dst_f, "configfile $prefix/grub.cfg\n");
+ fclose (config_dst_f);
+ free (config_dst);
++ if (force_extra_removable)
++ also_install_removable(efi_signed, base_efidir, efi_suffix_upper);
+ }
+ else
+- grub_install_copy_file (imgfile, dst, 1);
++ {
++ grub_install_copy_file (imgfile, dst, 1);
++ if (force_extra_removable)
++ also_install_removable(imgfile, base_efidir, efi_suffix_upper);
++ }
+
+ grub_set_install_backup_ponr ();
+
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