On 05-24-2024 02:24PM, Andrei Borzenkov wrote:
On 24.05.2024 21:45, -pj wrote:

On 05-24-2024 01:26PM, Andrei Borzenkov wrote:
On 24.05.2024 20:57, -pj wrote:
I have booted from a live image on the machine.

Here are bootinfoscript RESULTS >
https://paste.opensuse.org/pastes/d5b9e3d7a46c


  => Grub2 (v1.99-2.00) is installed in the MBR of /dev/sdb and looks
at sector
     2048 of the same hard drive for core.img, but core.img can not be
found at
     this location.

GUID Partition Table detected.
Partition  Attrs   Start Sector    End Sector  # of Sectors System
/dev/sdb1                 2,048        18,431        16,384 BIOS Boot
partition
/dev/sdb2    B           18,432 1,953,523,711 1,953,505,280 Logical
Volume Manager (LVM) partition (Linux)
Attributes: R=Required, N=No Block IO, B=Legacy BIOS Bootable, +=More
bits set

sdb1:
__________________________________________________________________________
     File system:       BIOS Boot partition
     Boot sector type:  -
     Boot sector info:


Well, it seems that grub is gone from BIOS boot partition. Mount root
and show the content of /etc/default/grub_installdevice and
/etc/sysconfig/bootloader.

Contents of /etc/default/grub_installdevice

/dev/disk/by-id/ata-WDC_WDS100T2B0A-00SM50_1909AF805062
-
Contents of /etc/sysconfig/bootloader


## Path:    System/Bootloader
## Description:    Bootloader configuration
## Type:    list(grub,grub2,grub2-efi,none)
## Default:    grub2
#
# Type of bootloader in use.
# For making the change effect run bootloader configuration tool
# and configure newly selected bootloader
#
#
LOADER_TYPE="grub2"
## Path:    System/Bootloader
## Description:    Bootloader configuration
## Type:    yesno
## Default:    "no"
#
# Enable Secure Boot support
# Only available on UEFI systems and IBM z15+.
#
#
SECURE_BOOT="yes"
## Path:    System/Bootloader
## Description:    Bootloader configuration
## Type:    yesno
## Default:    "no"
#
# Enable Trusted Boot support
# Only available on hardware with a Trusted Platform Module.
#
TRUSTED_BOOT="no"
## Path:    System/Bootloader
## Description:    Bootloader configuration
## Type:    yesno
## Default:    "yes"
#
# Update nvram boot settings (UEFI, OF)
# Unset to preserve specific settings or workaround firmware issues.
#
UPDATE_NVRAM="yes"

The entry line above "(SECURE_BOOT="yes")" may not be correct because
the machine in question does not have UEFI capability. I believe the
machine is a Legacy BIOS hardware.

What are your thoughts?


So far not much. Could you show (better on paste.opensuse.org)

hexdump -C -n 512 /dev/sdb
hexdump -C -n 512 /dev/sdb1

Thank you for asking, of course.

# hexdump -C -n 512 /dev/sdb
00000000  eb 63 90 90 90 90 90 90  90 90 90 90 90 90 90 90  |.c..............|
00000010  90 90 90 90 90 90 90 90  90 90 eb 49 24 12 0f 09  |...........I$...|
00000020  00 52 be 1b 7c 31 c0 cd  13 46 8a 0c 84 c9 75 10  |.R..|1...F....u.|
00000030  be 39 7c e8 74 01 e9 3d  01 46 6c 6f 70 70 79 00  |.9|.t..=.Floppy.|
00000040  bb 00 70 8e c3 31 db b8  01 02 b5 00 b6 00 cd 13  |..p..1..........|
00000050  72 d3 b6 01 b5 4f e9 98  00 00 00 80 00 00 00 00  |r....O..........|
00000060  00 00 00 00 ff fa eb 05  f6 c2 80 74 05 f6 c2 70  |...........t...p|
00000070  74 02 b2 80 ea 79 7c 00  00 31 c0 8e d8 8e d0 bc  |t....y|..1......|
00000080  00 20 fb a0 64 7c 3c ff  74 02 88 c2 52 be 80 7d  |. ..d|<.t...R..}|
00000090  e8 17 01 be bf 7d b4 41  bb aa 55 cd 13 5a 52 72  |.....}.A..U..ZRr|
000000a0  3d 81 fb 55 aa 75 37 83  e1 01 74 32 31 c0 89 44  |=..U.u7...t21..D|
000000b0  04 40 88 44 ff 89 44 02  c7 04 10 00 66 8b 1e b0  |.@.D..D.....f...|
000000c0  7d 66 89 5c 08 66 8b 1e  b4 7d 66 89 5c 0c c7 44  |}f.\.f...}f.\..D|
000000d0  06 00 70 b4 42 cd 13 72  05 bb 00 70 eb 76 b4 08  |..p.B..r...p.v..|
000000e0  cd 13 73 0d 5a 84 d2 0f  83 36 ff be 8b 7d e9 82  |..s.Z....6...}..|
000000f0  00 66 0f b6 c6 88 64 ff  40 66 89 44 04 0f b6 d1  |.f....d.@f.D....|
00000100  c1 e2 02 88 e8 88 f4 40  89 44 08 0f b6 c2 c0 e8  |.......@.D......|
00000110  02 66 89 04 66 a1 b4 7d  66 09 c0 75 4e 66 a1 b0  |.f..f..}f..uNf..|
00000120  7d 66 31 d2 66 f7 34 88  d1 31 d2 66 f7 74 04 3b  |}f1.f.4..1.f.t.;|
00000130  44 08 7d 37 fe c1 88 c5  30 c0 c1 e8 02 08 c1 88  |D.}7....0.......|
00000140  d0 5a 88 c6 bb 00 70 8e  c3 31 db b8 01 02 cd 13  |.Z....p..1......|
00000150  72 1e 8c c3 60 1e b9 00  01 8e db 31 f6 bf 00 80  |r...`......1....|
00000160  8e c6 fc f3 a5 1f 61 ff  26 5a 7c be 86 7d eb 03  |......a.&Z|..}..|
00000170  be 95 7d e8 34 00 be 9a  7d e8 2e 00 cd 18 eb fe  |..}.4...}.......|
00000180  47 52 55 42 20 00 47 65  6f 6d 00 48 61 72 64 20  |GRUB .Geom.Hard |
00000190  44 69 73 6b 00 52 65 61  64 00 20 45 72 72 6f 72  |Disk.Read. Error|
000001a0  0d 0a 00 bb 01 00 b4 0e  cd 10 ac 3c 00 75 f4 c3  |...........<.u..|
000001b0  38 03 00 00 00 00 00 00  00 00 00 00 00 00 80 02  |8...............|
000001c0  01 00 cd 3b d0 95 40 00  00 00 30 af 1c 00 00 3b  |...;..@...0....;|
000001d0  d1 95 ef 3b d0 a9 70 af  1c 00 00 a0 00 00 00 00  |...;..p.........|
000001e0  c1 aa 83 3f e0 ff 00 50  1d 00 00 70 d1 00 00 00  |...?...P...p....|
000001f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 55 aa  |..............U.|
00000200

-

# hexdump -C -n 512 /dev/sdb1
00000000  01 43 44 30 30 31 01 00  20 20 20 20 20 20 20 20  |.CD001..        |
00000010  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
00000020  20 20 20 20 20 20 20 20  6f 70 65 6e 53 55 53 45  |        openSUSE|
00000030  5f 54 75 6d 62 6c 65 77  65 65 64 5f 4b 44 45 5f  |_Tumbleweed_KDE_|
00000040  4c 69 76 65 20 20 20 20  00 00 00 00 00 00 00 00  |Live    ........|
00000050  dc 53 07 00 00 07 53 dc  00 00 00 00 00 00 00 00  |.S....S.........|
00000060  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000070  00 00 00 00 00 00 00 00  01 00 00 01 01 00 00 01  |................|
00000080  00 08 08 00 c2 00 00 00  00 00 00 c2 75 00 00 00  |............u...|
00000090  00 00 00 00 00 00 00 76  00 00 00 00 22 00 53 00  |.......v....".S.|
000000a0  00 00 00 00 00 53 00 08  00 00 00 00 08 00 7c 01  |.....S........|.|
000000b0  10 09 30 15 00 02 00 00  01 00 00 01 01 00 20 20  |..0...........  |
000000c0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
*
00000130  20 20 20 20 20 20 20 20  20 20 20 20 20 20 53 55  |              SU|
00000140  53 45 20 4c 49 4e 55 58  20 47 4d 42 48 20 20 20  |SE LINUX GMBH   |
00000150  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
*
000001b0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 4b 49  |              KI|
000001c0  57 49 20 2d 20 48 54 54  50 53 3a 2f 2f 47 49 54  |WI - HTTPS://GIT|
000001d0  48 55 42 2e 43 4f 4d 2f  4f 53 49 4e 53 49 44 45  |HUB.COM/OSINSIDE|
000001e0  2f 4b 49 57 49 20 20 20  20 20 20 20 20 20 20 20  |/KIWI           |
000001f0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
00000200



-Best regards


On 05-24-2024 12:33PM, Andrei Borzenkov wrote:
On 24.05.2024 20:19, -pj wrote:
Hi, I am using Tumbleweed with KDE 6 on a machine here. I decide to
update the machine today by passing 'zypper dup' into Konsole. After a
bit the update completed and 'zypper ps -s' said there were no core
libraries updated but I proceeded to powercycle the machine.

After doing this the machine is stuck at the following displayed on
screen > GRUB _

Can you tell me what may have happened and the steps to try to attempt
to get this repaired?

Boot from live image, run https://github.com/arvidjaar/bootinfoscript,
provide RESULTS.txt.