[bug #64304] grub interprets Apple file system (APFS) wrongly and goes into interactive mode

"Vincent S. Cojot" <[email protected]>
Newsgroups gmane.comp.boot-loaders.grub.bugs
Message-ID <[email protected]> 
URL:
  <https://savannah.gnu.org/bugs/?64304>

                 Summary: grub interprets Apple file system (APFS) wrongly and
goes into interactive mode
                   Group: GNU GRUB
               Submitter: elcoyote_
               Submitted: Thu 15 Jun 2023 12:33:36 PM UTC
                Category: Filesystem
                Severity: Major
                Priority: 5 - Normal
              Item Group: Software Error
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: Vincent Cojot
        Originator Email: [email protected]
             Open/Closed: Open
                 Release: 2.02
                 Release: 
         Discussion Lock: Any
         Reproducibility: Every Time
         Planned Release: None


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Follow-up Comments:


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Date: Thu 15 Jun 2023 12:33:36 PM UTC By: Vincent S. Cojot <elcoyote_>
Copied from https://bugzilla.redhat.com/show_bug.cgi?id=1524685

I am testing SNO 4.12 (based on RHEL 8.6) on a Mac Pro x86_64 machine.
The machine has 3 SSDs which are as follows:

/dev/sda (Apple SSD)
/dev/nvme0n1 (TopoLVM - RedHat LVM storage Operator)
/dev/nvme1n1 (OCP SNO 4.12.19)

everything works fine and I can reboot/switch from OCP to MacOS with
efibootmgr:

[root@neraka ~]# efibootmgr 
BootCurrent: 0000
BootOrder: 0000,0001
Boot0000* Red Hat Enterprise Linux
Boot0001* rEFInd Boot Manager
Boot0080* Mac OS X
Boot0081* Mac OS X

Here's the disk config:
[root@neraka ~]# lsblk    
NAME                           MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda                              8:0    0 931.9G  0 disk 
|-sda1                           8:1    0   200M  0 part 
|-sda2                           8:2    0 238.6G  0 part 
`-sda3                           8:3    0   693G  0 part 
sr0                             11:0    1  1024M  0 rom  
nvme0n1                        259:0    0   1.8T  0 disk 
|-datavg-thin--pool--1_tmeta   253:0    0   840M  0 lvm  
| `-datavg-thin--pool--1-tpool 253:2    0   1.7T  0 lvm  
|   |-datavg-thin--pool--1     253:3    0   1.7T  1 lvm  
|   |-datavg-af11ef7c--d568--42a3--830c--6d7e2102bd15
|   |                          253:4    0    40G  0 lvm 
/var/lib/kubelet/pods/7c785320-a7a6-4765-8f5b-671d3d33baeb/volume-subpaths/pvc-ecdeed7a-78ca-
|   `-datavg-bdfefdc5--ba97--40ce--84b3--81d31a4ec402
|                              253:5    0    10G  0 lvm 
/var/lib/kubelet/pods/b56bb23f-22c3-41f3-a208-9638747ac29e/volume-subpaths/pvc-e1a0d307-92cf-
`-datavg-thin--pool--1_tdata   253:1    0   1.7T  0 lvm  
  `-datavg-thin--pool--1-tpool 253:2    0   1.7T  0 lvm  
    |-datavg-thin--pool--1     253:3    0   1.7T  1 lvm  
    |-datavg-af11ef7c--d568--42a3--830c--6d7e2102bd15
    |                          253:4    0    40G  0 lvm 
/var/lib/kubelet/pods/7c785320-a7a6-4765-8f5b-671d3d33baeb/volume-subpaths/pvc-ecdeed7a-78ca-
    `-datavg-bdfefdc5--ba97--40ce--84b3--81d31a4ec402
                               253:5    0    10G  0 lvm 
/var/lib/kubelet/pods/b56bb23f-22c3-41f3-a208-9638747ac29e/volume-subpaths/pvc-e1a0d307-92cf-
nvme1n1                        259:1    0 931.5G  0 disk 
|-nvme1n1p1                    259:2    0     1M  0 part 
|-nvme1n1p2                    259:3    0   127M  0 part 
|-nvme1n1p3                    259:4    0   384M  0 part /boot
`-nvme1n1p4                    259:5    0   931G  0 part /sysroot

The -PROBLEM- is that unless I 'wipe' /dev/sda and MacOS, GRUB from
/dev/nvme1n1p2 (OCP 4.12) barfs on the APFS partition on /dev/sda and goes
into interactive mode:

error: ../../grub-core/disk/eft/efidisk.c:612: fatture reading sector
@x1dd164f0 from "hd0".
error: ../../grub-core/disk/eft/eftdisk.c:612: failure reading sector
@x1dd16480 from "hd0".
error: ../../grub-core/disk/eft/efidisk.c:612: failure reading sector
@x1dd164f0 from "hd1".
error: ../../grub-core/disk/eft/eftdisk.c:612: failure reading sector
@x1dd16480 from "hd1".
error: ../../grub-core/disk/eft/efidisk.c:612: failure reading sector
@x1dd164f0 from "hd2".
error: ../../grub-core/disk/eft/eftdisk.c:612: failure reading sector
@x1dd16480 from "hd2".
error: ../../grub-core/disk/eft/efidisk.c:612: failure reading sector
@x1dd164f0 from "hd3".
error: ../../grub-core/disk/eft/eftdisk.c:612: failure reading sector
@x1dd16480 from "hd3".
error: ../../grub-core/disk/eft/efidisk.c:612: failure reading sector
@x1dd164f0 from "hd4".
error: ../../grub-core/disk/eft/eftdisk.c:612: failure reading sector
@x1dd16480 from "hd4".
error: ../../grub-core/disk/eft/efidisk.c:612: failure reading sector
@x1dd164f0 from "hd5".
error: ../../grub-core/disk/eft/eftdisk.c:612: failure reading sector
@x1dd16480 from "hd5".

after that, pressing 'q' resumes normal boot and the system boots fine into
OCP.

I only have 3 drives in this machine, why is GRUB complaining about hd4, hd5
and the rest?

Furthermore, if I ask GRUB to enter a command shell, I see this:


grub> ls
(proc) (hd0) (hd1) (hd2) (hd3) (hd4) (hd5) (hd6) (hd6,msdos1) (hd7) (hd7,
gpt3) (hd7,gpt2) (hd7, gpt1) (hd8) (hd9) (hd9, gpt4) (hd9, gpt3) (hd9, gpt2)
(hd9,gpt1)
error: ../../grub-core/disk/efi/efidisk.c:612: failure reading sector
0x1dd164f0 from `hd0'.
error: ../../grub-core/disk/efi/efidisk.c:612: failure reading sector
0x1dd16480 from `hd0'.
error: ../../grub-core/disk/efi/efidisk.c:612: failure reading sector
0x1dd164f0 from `hd1'.
error: ../../grub-core/disk/efi/efidisk.c:612: failure reading sector
0x1dd16480 from `hd1'.
error: ../../grub-core/disk/efi/efidisk.c:612: failure reading sector
0x1dd164f0 from `hd2'.
error: ../../grub-core/disk/efi/efidisk.c:612;failure reading sector
0x1dd16480 from `hd2'.
error: ../../grub-core/disk/efi/efidisk.c:612: failure reading sector
0x1dd164f0 from `hd3'.
error: ../../grub-core/disk/efi/efidisk.c:612: failure reading sector
0x1dd16480 from `hd3'.
error: ../../grub-core/disk/efi/efidisk.c:612: failure reading sector
0x1dd164f0 from `hd4'.
error: ../../grub-core/disk/efi/efidisk.c:612: failure reading sector
0x1dd16480 from `hd4'.
--MORE--
 GRUB is completely confused by the Apple APFS partition on /dev/sda.
As much as I can understand/recognize that h6, h7 and hd9 must be my flash
drives (they show partitions), where are hd0,hd1,hd2,hd3, hd4, hd5 and hd8
coming from?

this is what fdisk shows:

[root@neraka ~]# fdisk  -l /dev/sda
Disk /dev/sda: 931.9 GiB, 1000555581440 bytes, 1954210120 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 8394576E-EF09-4FD1-8BBE-4DF0182F5102

Device         Start        End    Sectors   Size Type
/dev/sda1         40     409639     409600   200M EFI System
/dev/sda2     409640  500671783  500262144 238.6G unknown
/dev/sda3  500671784 1953947935 1453276152   693G Apple HFS/HFS+

(This is MacOS 12.6.6 - aka Monterrey)







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File Attachments:


-------------------------------------------------------
Date: Thu 15 Jun 2023 12:33:36 PM UTC  Name: ocp4n_grub2b.png  Size: 246KiB  
By: elcoyote_

<http://savannah.gnu.org/bugs/download.php?file_id=54842>

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