В Вт, 24/12/2013 в 14:26 +0100, Vladimir 'φ-coder/phcoder' Serbinenko пишет: > Hello, all. It was discovered that on macs sometimes firmware defines > ghost disks with vendor suffix. E.g. > /ACPI(a0341d0,0)/PCI(2,1f)/UnknownMessaging(12)/EndEntire > is a normal disks with partitions presented with HD(...) but then > /ACPI(a0341d0,0)/PCI(2,1f)/UnknownMessaging(12)/MediaVendor(Apple)[0: > ]/EndEntire > is a ghost disk. It has as suffix a vendor path with empty vendor data.
Messaging subtype 12 is IPv4 Device Path. I suppose it is related to
NetBoot.
> This is a problem because when chainloading on such disks GRUB can't
> find handle of partition as none is defined. I propose to dkip ghosts
> completely. This should be safe as the skip happens only for empty Apple
> vendor suffix and if the parent is already a known disk.
Hmm ... should not we simply ignore all unknown media types? They can be
added on case by case basis I guess.
diff --git a/grub-core/disk/efi/efidisk.c b/grub-core/disk/efi/efidisk.c
index e04203f..6dfdb0d 100644
--- a/grub-core/disk/efi/efidisk.c
+++ b/grub-core/disk/efi/efidisk.c
@@ -310,6 +310,7 @@ name_devices (struct grub_efidisk_data *devices)
grub_efi_print_device_path (d->device_path);
#endif
/* For now, ignore the others. */
+ d->last_device_path = 0;
break;
}
}
> Did anyone see anything similar?
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