103 lines
3.9 KiB
Diff
103 lines
3.9 KiB
Diff
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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