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. > 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. > Did anyone see anything similar?
Yes (on MacBook Pro); Here is what I get when EFI-booting from GRUB rescue CD made with single x86_64-efi target: /ACPI(a0341d0,0)/PCI(1,1f)/ATAPI(0,0,0)/EndEntire disk block /ACPI(a0341d0,0)/PCI(1,1f)/ATAPI(0,0,0)/MediaVendor(2b0585eb-d8b8-49a9-8b8c-e21b01aef2b7)[0: ]/EndEntire block simple FS /ACPI(a0341d0,0)/PCI(1,1f)/ATAPI(0,0,0)/HD(2,10,5c1,0000000000000000,20,0)/EndEntire disk block /ACPI(a0341d0,0)/PCI(1,1f)/ATAPI(0,0,0)/HD(3,5d1,ca3,0000000000000000,20,0)/EndEntire simple FS disk block /ACPI(a0341d0,0)/PCI(1,1f)/ATAPI(0,0,0)/HD(4,1274,a2,0000000000000000,20,0)/EndEntire disk block The three HD media paths are for three Apple partitions (and the third one has simple FS because it does contains HFS+). And I /think/ that the very first Vendor media path refers to CD-ROM (based on the fact that it got simple FS protocol). I played a bit with it; when I try to list filesystem for this media path in EFI shell, it audibly tries to access CD-ROM but fails. May be it requires Apple ISO9660 extensions, but I do not know how to create EFI bootable image containing Apple extensions (mkisofs should support it, but I was lost in arguments. xorriso apparently does not support Apple extensions). In your case you have SATA DVD drive, right? And path shown refers to it? _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
