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gnu: grub: Allow "grub-bios-setup" to operate on raw disk-images.
* gnu/packages/patches/grub-setup-root.patch: New file. * gnu/local.mk (dist_patch_DATA): Add it. * gnu/packages/bootloaders.scm (grub): Apply it.
This commit is contained in:
Mathieu Othacehe
Mathieu Othacehe
parent
16f9124d1f
commit
15135a5e13
3 changed files with 126 additions and 0 deletions
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@ -1041,6 +1041,7 @@ dist_patch_DATA = \
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%D%/packages/patches/gromacs-tinyxml2.patch \
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%D%/packages/patches/groovy-add-exceptionutilsgenerator.patch \
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%D%/packages/patches/grub-efi-fat-serial-number.patch \
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%D%/packages/patches/grub-setup-root.patch \
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%D%/packages/patches/grub-verifiers-Blocklist-fallout-cleanup.patch \
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%D%/packages/patches/gspell-dash-test.patch \
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%D%/packages/patches/guile-1.8-cpp-4.5.patch \
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@ -96,6 +96,7 @@ (define-public grub
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"0zgp5m3hmc9jh8wpjx6czzkh5id2y8n1k823x2mjvm2sk6b28ag5"))
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(patches (search-patches
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"grub-efi-fat-serial-number.patch"
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"grub-setup-root.patch"
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"grub-verifiers-Blocklist-fallout-cleanup.patch"))))
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(build-system gnu-build-system)
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(arguments
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124
gnu/packages/patches/grub-setup-root.patch
Normal file
124
gnu/packages/patches/grub-setup-root.patch
Normal file
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@ -0,0 +1,124 @@
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This patch is taken from OpenWrt, see:
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https://github.com/openwrt/openwrt/blob/master/package/boot/grub2/patches/100-grub_setup_root.patch.
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It allows to use grub-bios-setup on a raw disk-images, without root permissions.
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--- a/util/grub-setup.c
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+++ b/util/grub-setup.c
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@@ -87,6 +87,8 @@ static struct argp_option options[] = {
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N_("install even if problems are detected"), 0},
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{"skip-fs-probe",'s',0, 0,
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N_("do not probe for filesystems in DEVICE"), 0},
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+ {"root-device", 'r', N_("DEVICE"), 0,
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+ N_("use DEVICE as the root device"), 0},
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{"verbose", 'v', 0, 0, N_("print verbose messages."), 0},
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{"allow-floppy", 'a', 0, 0,
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/* TRANSLATORS: The potential breakage isn't limited to floppies but it's
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@@ -130,6 +132,7 @@ struct arguments
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char *core_file;
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char *dir;
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char *dev_map;
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+ char *root_dev;
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int force;
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int fs_probe;
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int allow_floppy;
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@@ -178,6 +181,13 @@ argp_parser (int key, char *arg, struct
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arguments->dev_map = xstrdup (arg);
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break;
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+ case 'r':
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+ if (arguments->root_dev)
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+ free (arguments->root_dev);
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+
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+ arguments->root_dev = xstrdup (arg);
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+ break;
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+
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case 'f':
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arguments->force = 1;
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break;
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@@ -313,7 +323,7 @@ main (int argc, char *argv[])
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GRUB_SETUP_FUNC (arguments.dir ? : DEFAULT_DIRECTORY,
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arguments.boot_file ? : DEFAULT_BOOT_FILE,
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arguments.core_file ? : DEFAULT_CORE_FILE,
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- dest_dev, arguments.force,
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+ arguments.root_dev, dest_dev, arguments.force,
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arguments.fs_probe, arguments.allow_floppy,
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arguments.add_rs_codes);
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--- a/util/setup.c
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+++ b/util/setup.c
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@@ -252,13 +252,12 @@ identify_partmap (grub_disk_t disk __att
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void
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SETUP (const char *dir,
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const char *boot_file, const char *core_file,
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- const char *dest, int force,
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+ char *root, const char *dest, int force,
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int fs_probe, int allow_floppy,
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int add_rs_codes __attribute__ ((unused))) /* unused on sparc64 */
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{
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char *core_path;
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char *boot_img, *core_img, *boot_path;
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- char *root = 0;
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size_t boot_size, core_size;
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grub_uint16_t core_sectors;
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grub_device_t root_dev = 0, dest_dev, core_dev;
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@@ -307,7 +306,10 @@ SETUP (const char *dir,
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core_dev = dest_dev;
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- {
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+ if (root)
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+ root_dev = grub_device_open(root);
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+
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+ if (!root_dev) {
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char **root_devices = grub_guess_root_devices (dir);
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char **cur;
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int found = 0;
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@@ -320,6 +322,8 @@ SETUP (const char *dir,
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char *drive;
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grub_device_t try_dev;
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+ if (root_dev)
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+ break;
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drive = grub_util_get_grub_dev (*cur);
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if (!drive)
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continue;
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--- a/include/grub/util/install.h
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+++ b/include/grub/util/install.h
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@@ -191,13 +191,13 @@ grub_install_get_image_target (const cha
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void
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grub_util_bios_setup (const char *dir,
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const char *boot_file, const char *core_file,
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- const char *dest, int force,
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+ char *root, const char *dest, int force,
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int fs_probe, int allow_floppy,
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int add_rs_codes);
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void
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grub_util_sparc_setup (const char *dir,
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const char *boot_file, const char *core_file,
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- const char *dest, int force,
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+ char *root, const char *dest, int force,
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int fs_probe, int allow_floppy,
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int add_rs_codes);
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--- a/util/grub-install.c
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+++ b/util/grub-install.c
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@@ -1712,7 +1712,7 @@ main (int argc, char *argv[])
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/* Now perform the installation. */
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if (install_bootsector)
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grub_util_bios_setup (platdir, "boot.img", "core.img",
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- install_drive, force,
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+ NULL, install_drive, force,
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fs_probe, allow_floppy, add_rs_codes);
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break;
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}
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@@ -1738,7 +1738,7 @@ main (int argc, char *argv[])
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/* Now perform the installation. */
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if (install_bootsector)
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grub_util_sparc_setup (platdir, "boot.img", "core.img",
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- install_drive, force,
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+ NULL, install_drive, force,
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fs_probe, allow_floppy,
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0 /* unused */ );
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break;
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