Accepting request 585948 from home:fos:branches:Base:System

For health-checker (https://build.opensuse.org/package/show/devel:CaaSP/health-checker) an additional flag is used to exchange information between GRUB and user space; as suggested by Michael this patch will enable writing that specific variable into the GRUB environment block.

- Store GRUB environment variable health_checker_flag
  in Btrfs header
- Rename grub2-btrfs-workaround-grub2-once.patch to
  grub2-grubenv-in-btrfs-header.patch (as the original 
  filename was too specific - the patch is not only
  storing the next_entry flag only in the Btrfs
  header now)

OBS-URL: https://build.opensuse.org/request/show/585948
OBS-URL: https://build.opensuse.org/package/show/Base:System/grub2?expand=0&rev=293

grub2-grubenv-in-btrfs-header.patch

@@ -1,7 +1,12 @@
-Index: grub-2.02~rc2/grub-core/kern/fs.c
+GRUB cannot write Btrfs file systems from the bootloader, so it cannot
+modify values set from userspace (e.g. "next_entry" set by grub2-once).
+As a workaround use the Btrfs header to store known data of the GRUB environment
+block.
+---
+Index: grub-2.02/grub-core/kern/fs.c
 ===================================================================
---- grub-2.02~rc2.orig/grub-core/kern/fs.c
+--- grub-2.02.orig/grub-core/kern/fs.c
-+++ grub-2.02~rc2/grub-core/kern/fs.c
++++ grub-2.02/grub-core/kern/fs.c
 @@ -27,6 +27,7 @@
  #include <grub/mm.h>
  #include <grub/term.h>
@@ -24,10 +29,10 @@ Index: grub-2.02~rc2/grub-core/kern/fs.c
  	  ret += size;
  	  len -= size;
  	  sector -= ((size + offset) >> GRUB_DISK_SECTOR_BITS);
-Index: grub-2.02~rc2/util/grub-editenv.c
+Index: grub-2.02/util/grub-editenv.c
 ===================================================================
---- grub-2.02~rc2.orig/util/grub-editenv.c
+--- grub-2.02.orig/util/grub-editenv.c
-+++ grub-2.02~rc2/util/grub-editenv.c
++++ grub-2.02/util/grub-editenv.c
 @@ -23,8 +23,11 @@
  #include <grub/util/misc.h>
  #include <grub/lib/envblk.h>
@@ -239,13 +244,14 @@ Index: grub-2.02~rc2/util/grub-editenv.c
  set_variables (const char *name, int argc, char *argv[])
  {
    grub_envblk_t envblk;
-@@ -217,8 +393,26 @@ set_variables (const char *name, int arg
+@@ -217,8 +393,27 @@ set_variables (const char *name, int arg
  
        *(p++) = 0;
  
 -      if (! grub_envblk_set (envblk, argv[0], p))
 -        grub_util_error ("%s", _("environment block too small"));
-+      if (strcmp (argv[0], "next_entry") == 0 && fs_envblk)
++      if ((strcmp (argv[0], "next_entry") == 0 ||
++	  strcmp (argv[0], "health_checker_flag") == 0) && fs_envblk)
 +	{
 +	  grub_envblk_t envblk_fs;
 +	  envblk_fs = open_envblk_fs (envblk);
@@ -268,7 +274,7 @@ Index: grub-2.02~rc2/util/grub-editenv.c
  
        argc--;
        argv++;
-@@ -226,26 +420,158 @@ set_variables (const char *name, int arg
+@@ -226,26 +421,158 @@ set_variables (const char *name, int arg
  
    write_envblk (name, envblk);
    grub_envblk_close (envblk);
@@ -427,7 +433,7 @@ Index: grub-2.02~rc2/util/grub-editenv.c
  int
  main (int argc, char *argv[])
  {
-@@ -277,6 +603,9 @@ main (int argc, char *argv[])
+@@ -277,6 +604,9 @@ main (int argc, char *argv[])
        command  = argv[curindex++];
      }
  
@@ -437,10 +443,10 @@ Index: grub-2.02~rc2/util/grub-editenv.c
    if (strcmp (command, "create") == 0)
      grub_util_create_envblk_file (filename);
    else if (strcmp (command, "list") == 0)
-Index: grub-2.02~rc2/util/grub.d/00_header.in
+Index: grub-2.02/util/grub.d/00_header.in
 ===================================================================
---- grub-2.02~rc2.orig/util/grub.d/00_header.in
+--- grub-2.02.orig/util/grub.d/00_header.in
-+++ grub-2.02~rc2/util/grub.d/00_header.in
++++ grub-2.02/util/grub.d/00_header.in
 @@ -46,6 +46,11 @@ cat << EOF
  if [ -s \$prefix/grubenv ]; then
    load_env

grub2.changes

@@ -7,6 +7,13 @@ Tue Mar  6 08:21:43 UTC 2018 - mchang@suse.com
 - insert mdraid modules to support software RAID (bsc#1078775)
   * grub2-xen-pv-firmware.cfg
 
+-------------------------------------------------------------------
+Thu Mar  1 18:36:33 UTC 2018 - iforster@suse.com
+
+- Rename grub2-btrfs-workaround-grub2-once.patch to
+  grub2-grubenv-in-btrfs-header.patch
+- Store GRUB environment variable health_checker_flag in Btrfs header
+
 -------------------------------------------------------------------
 Tue Feb 13 09:05:45 UTC 2018 - mchang@suse.com
 

grub2.spec

@@ -197,7 +197,7 @@ Patch58:        grub2-xen-linux16.patch
 Patch59:        grub2-efi-disable-video-cirrus-and-bochus.patch
 Patch60:        grub2-editenv-add-warning-message.patch
 Patch61:        grub2-vbe-blacklist-preferred-1440x900x32.patch
-Patch64:        grub2-btrfs-workaround-grub2-once.patch
+Patch64:        grub2-grubenv-in-btrfs-header.patch
 Patch65:        grub2-mkconfig-aarch64.patch
 Patch70:        grub2-default-distributor.patch
 Patch71:        grub2-menu-unrestricted.patch