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ppc64le: update signed media fixes
Signed-off-by: Robbie Harwood <rharwood@redhat.com>
This commit is contained in:
Robbie Harwood
parent
ac206cb17b
commit
3ce59ed7e1
6 changed files with 108 additions and 115 deletions
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@ -1,58 +0,0 @@
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Robbie Harwood <rharwood@redhat.com>
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Date: Thu, 12 Jan 2023 16:03:03 -0500
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Subject: [PATCH] Skip diskfilter on powerpc CDs
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Prior to this change, on ppc64le with part_msdos and the mdraid* modules
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enabled, we see:
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disk/diskfilter.c:191: scanning ieee1275/cdrom
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kern/disk.c:196: Opening `ieee1275/cdrom'...
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disk/ieee1275/ofdisk.c:477: Opening `cdrom'.
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disk/ieee1275/ofdisk.c:502: MAX_RETRIES set to 20
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kern/disk.c:288: Opening `ieee1275/cdrom' succeeded.
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disk/diskfilter.c:136: Scanning for DISKFILTER devices on disk ieee1275/cdrom
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partmap/msdos.c:184: partition 0: flag 0x80, type 0x96, start 0x0, len
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0x6a5d70
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disk/diskfilter.c:136: Scanning for DISKFILTER devices on disk ieee1275/cdrom
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SCSI-DISK: Access beyond end of device !
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SCSI-DISK: Access beyond end of device !
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SCSI-DISK: Access beyond end of device !
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SCSI-DISK: Access beyond end of device !
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SCSI-DISK: Access beyond end of device !
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disk/ieee1275/ofdisk.c:578: MAX_RETRIES set to 20
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These latter two lines repeat many times, eventually ending in:
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kern/disk.c:388: ieee1275/cdrom read failed
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error: ../../grub-core/disk/ieee1275/ofdisk.c:608:failure reading sector
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0x1a9720 from `ieee1275/cdrom'.
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and the system drops to a "grub>" prompt.
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The firmware and the iso image appear to diagree on the blocksize (512
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vs. 2048), and the diskfilter RAID probing is too much for it. We won't
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be seeing RAID on bootable CDs, so just turn it off.
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Signed-off-by: Robbie Harwood <rharwood@redhat.com>
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(cherry picked from commit 35614da6ef0296d1a2d1583ae23822230c25a334)
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---
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grub-core/disk/diskfilter.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/grub-core/disk/diskfilter.c b/grub-core/disk/diskfilter.c
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index 7cdffe3ebd..f9140f7493 100644
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--- a/grub-core/disk/diskfilter.c
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+++ b/grub-core/disk/diskfilter.c
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@@ -133,6 +133,11 @@ scan_disk_partition_iter (grub_disk_t disk, grub_partition_t p, void *data)
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struct grub_diskfilter_pv_id id;
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grub_diskfilter_t diskfilter;
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+#ifdef __powerpc__
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+ if (!grub_strcmp (name, "ieee1275/cdrom"))
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+ return 0;
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+#endif
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+
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grub_dprintf ("diskfilter", "Scanning for DISKFILTER devices on disk %s\n",
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name);
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#ifdef GRUB_UTIL
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102
0318-ppc64le-signed-boot-media-changes.patch
Normal file
102
0318-ppc64le-signed-boot-media-changes.patch
Normal file
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@ -0,0 +1,102 @@
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Robbie Harwood <rharwood@redhat.com>
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Date: Wed, 25 Jan 2023 16:10:58 -0500
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Subject: [PATCH] ppc64le: signed boot media changes
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Skip diskfilter on isos since mdraid* can't even
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Prior to this change, on ppc64le with part_msdos and the mdraid* modules
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enabled, we see:
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disk/diskfilter.c:191: scanning ieee1275/cdrom
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kern/disk.c:196: Opening `ieee1275/cdrom'...
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disk/ieee1275/ofdisk.c:477: Opening `cdrom'.
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disk/ieee1275/ofdisk.c:502: MAX_RETRIES set to 20
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kern/disk.c:288: Opening `ieee1275/cdrom' succeeded.
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disk/diskfilter.c:136: Scanning for DISKFILTER devices on disk ieee1275/cdrom
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partmap/msdos.c:184: partition 0: flag 0x80, type 0x96, start 0x0, len
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0x6a5d70
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disk/diskfilter.c:136: Scanning for DISKFILTER devices on disk ieee1275/cdrom
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SCSI-DISK: Access beyond end of device !
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SCSI-DISK: Access beyond end of device !
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SCSI-DISK: Access beyond end of device !
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SCSI-DISK: Access beyond end of device !
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SCSI-DISK: Access beyond end of device !
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disk/ieee1275/ofdisk.c:578: MAX_RETRIES set to 20
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These latter two lines repeat many times, eventually ending in:
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kern/disk.c:388: ieee1275/cdrom read failed
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error: ../../grub-core/disk/ieee1275/ofdisk.c:608:failure reading sector
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0x1a9720 from `ieee1275/cdrom'.
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and the system drops to a "grub>" prompt.
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The firmware and the iso image appear to diagree on the blocksize (512
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vs. 2048), and the diskfilter RAID probing is too much for it. We won't
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be seeing RAID on bootable CDs, so just turn it off.
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Fix detection of root.
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Try the chrp path as a fallback if the built prefix doesn't work.
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Signed-off-by: Robbie Harwood <rharwood@redhat.com>
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---
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grub-core/disk/diskfilter.c | 6 ++++++
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grub-core/kern/ieee1275/openfw.c | 2 +-
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grub-core/normal/main.c | 5 +++++
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3 files changed, 12 insertions(+), 1 deletion(-)
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diff --git a/grub-core/disk/diskfilter.c b/grub-core/disk/diskfilter.c
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index 7cdffe3ebd..27fbca903f 100644
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--- a/grub-core/disk/diskfilter.c
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+++ b/grub-core/disk/diskfilter.c
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@@ -139,6 +139,12 @@ scan_disk_partition_iter (grub_disk_t disk, grub_partition_t p, void *data)
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grub_util_info ("Scanning for DISKFILTER devices on disk %s", name);
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#endif
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+ if (p->parent == NULL || p->parent->len == 0)
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+ {
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+ grub_dprintf ("diskfilter", "skipping %s due to unknown parent partition length", name);
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+ return 0;
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+ }
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+
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disk->partition = p;
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for (arr = array_list; arr != NULL; arr = arr->next)
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diff --git a/grub-core/kern/ieee1275/openfw.c b/grub-core/kern/ieee1275/openfw.c
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index 3a6689abb1..0278054c61 100644
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--- a/grub-core/kern/ieee1275/openfw.c
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+++ b/grub-core/kern/ieee1275/openfw.c
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@@ -499,7 +499,7 @@ grub_ieee1275_encode_devname (const char *path)
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*optr++ ='\\';
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*optr++ = *iptr++;
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}
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- if (partition && partition[0])
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+ if (partition && partition[0] >= '0' && partition[0] <= '9')
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{
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unsigned int partno = grub_strtoul (partition, 0, 0);
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diff --git a/grub-core/normal/main.c b/grub-core/normal/main.c
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index 8f5fd81003..d59145f861 100644
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--- a/grub-core/normal/main.c
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+++ b/grub-core/normal/main.c
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@@ -372,6 +372,7 @@ grub_try_normal_prefix (const char *prefix)
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file = grub_file_open (config, GRUB_FILE_TYPE_CONFIG);
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if (file)
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{
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+ grub_env_set ("prefix", prefix);
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grub_file_close (file);
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err = GRUB_ERR_NONE;
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}
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@@ -447,6 +448,10 @@ grub_cmd_normal (struct grub_command *cmd __attribute__ ((unused)),
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err = grub_try_normal ("fw_path");
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if (err == GRUB_ERR_FILE_NOT_FOUND)
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err = grub_try_normal ("prefix");
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+#ifdef __powerpc__
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+ if (err == GRUB_ERR_FILE_NOT_FOUND)
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+ err = grub_try_normal_prefix ("/boot/grub");
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+#endif
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if (err == GRUB_ERR_FILE_NOT_FOUND)
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err = grub_try_normal_discover ();
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if (err == GRUB_ERR_FILE_NOT_FOUND)
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@ -1,53 +0,0 @@
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Robbie Harwood <rharwood@redhat.com>
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Date: Fri, 13 Jan 2023 12:36:29 -0500
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Subject: [PATCH] Fix prefix and root on ppc64le CDs
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CHRP requires grub at /boot/grub. On CDs, this means any other prefix
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will be invalid. In particular, a distro grub might prefer /grub2 - but
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prefix is hardcoded into the signed core.elf, and will always be wrong
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here.
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Also work around a conflict between OF naming and that used by
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part_msdos: on CDs, we always want the raw device. This fixes an issue
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where grub would successfully load the menu from an image, but then
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produce the error:
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error: ../../grub-core/net/net.c:1552:disk `ieee1275/cdrom,0' not found.
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and fail to boot further.
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Signed-off-by: Robbie Harwood <rharwood@redhat.com>
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(cherry picked from commit 68e5981a5e808a32350aca4a2414717fa4605ca0)
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---
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grub-core/kern/main.c | 17 +++++++++++++++++
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1 file changed, 17 insertions(+)
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diff --git a/grub-core/kern/main.c b/grub-core/kern/main.c
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index e94a2f78fb..ab06033534 100644
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--- a/grub-core/kern/main.c
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+++ b/grub-core/kern/main.c
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@@ -278,6 +278,23 @@ grub_set_prefix_and_root (void)
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}
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grub_env_set ("root", device);
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+
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+#ifdef __powerpc__
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+ /* When booting from a CD, if part_msdos is enabled, grub will detect
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+ and create access points starting at (ieee1275/cdrom,msdos1).
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+ However, the device detection and OF name transformation will produce
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+ a device named (ieee1275/cdrom,0) - i.e., missing the msdos and also
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+ differently indexed. Furthermore, CHRP mandates boot/grub as prefix,
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+ but our signed images are built with /grub2 to reflect installed
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+ systems. Just ignore both messes.
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+ */
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+ if (!grub_strncmp (device[0] == '(' ? device + 1 : device,
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+ "ieee1275/cdrom", grub_strlen ("ieee1275/cdrom")))
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+ {
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+ grub_env_set ("prefix", "/boot/grub");
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+ grub_env_set ("root", "ieee1275/cdrom");
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+ }
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+#endif
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}
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grub_free (device);
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@ -23,7 +23,7 @@
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-e 's/-fplugin=annobin//g' \\\
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-e 's,-specs=[[:alnum:]/_-]*annobin[[:alnum:]_-]*,,g' \\\
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-e 's/-fstack-protector[[:alpha:]-]\\+//g' \\\
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-e 's/-Wp,-D_FORTIFY_SOURCE=[[:digit:]]\\+//g' \\\
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-e 's/-[^ ]*D_FORTIFY_SOURCE=[[:digit:]][^ ]*\\+//g' \\\
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-e 's/--param=ssp-buffer-size=4//g' \\\
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-e 's/-mregparm=3/-mregparm=4/g' \\\
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-e 's/-fexceptions//g' \\\
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@ -315,5 +315,4 @@ Patch0314: 0314-kern-efi-mm-Pass-up-errors-from-add_memory_regions.patch
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Patch0315: 0315-kern-efi-mm-Implement-runtime-addition-of-pages.patch
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Patch0316: 0316-efi-Increase-default-memory-allocation-to-32-MiB.patch
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Patch0317: 0317-mm-Try-invalidate-disk-caches-last-when-out-of-memor.patch
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Patch0318: 0318-Skip-diskfilter-on-powerpc-CDs.patch
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Patch0319: 0319-Fix-prefix-and-root-on-ppc64le-CDs.patch
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Patch0318: 0318-ppc64le-signed-boot-media-changes.patch
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@ -17,7 +17,7 @@
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Name: grub2
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Epoch: 1
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Version: 2.06
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Release: 76%{?dist}
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Release: 77%{?dist}
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Summary: Bootloader with support for Linux, Multiboot and more
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License: GPLv3+
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URL: http://www.gnu.org/software/grub/
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@ -544,6 +544,9 @@ mv ${EFI_HOME}/grub.cfg.stb ${EFI_HOME}/grub.cfg
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%endif
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%changelog
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* Fri Jan 27 2023 Robbie Harwood <rharwood@redhat.com> - 2.06-77
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- ppc64le: update signed media fixes
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* Fri Jan 13 2023 Robbie Harwood <rharwood@redhat.com> - 2.06-76
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- ppc64le: fix issues using core.elf on boot media
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