On Saturday, October 13, 2018 5:42:15 PM EDT Chris Murphy wrote:
On Sat, Oct 13, 2018 at 1:30 PM, Garry T. Williams
<gtwilliams(a)gmail.com> wrote:
> On Saturday, October 13, 2018 3:12:44 PM EDT Samuel Sieb wrote:
>> On 10/13/18 10:39 AM, Garry T. Williams wrote:
>>
>> > What am I doing wrong here that I cannot boot after a
>> > system-upgrade?
>>
>> "Doesn't boot" is no information. What exactly is happening?
>
> Sorry, the boot record is gone.
You determined this how?
The machine did not boot the Fedora OS. Instead, it booted the OS on
/dev/sda.
Of course, I attempted to boot from the Fedora disk by using the boot
device configuration screen by hitting F12 during reboot. This
failed. (A photograph of the error would have been a good idea.)
I assumed that the reason was the boot record was missing.
>I happen to have another system on
>
> the same machine and that system boots instead of the Fedora
> system before my recovery actions. When I forced a boot from
> the fedora system using the machine's boot selection screen, it
> fails. (No diagnostic information in the BIOS setup screen --
> just won't boot. I was forced to specify the USB Live system to
> start a recovery.)
Screen shots or cell photo of the failure might be useful because
failure/won't boot doesn't tell us what is happening. And what is
happening is a hint as to what the source of the problem is, how to
prevent it, and how to fix it. But "won't boot" is not much to go
on.
Understood.
Is this BIOS or UEFI? From any other Linux, what do you get for
'parted -l u s p' or "fdisk -l" ? And what do you get for
'efibootmgr -v' ?
This is useful. I will try to document these results when I upgrade
to F30, if the same happens again.
The fdisk -l did show what I expected it to show:
Disk /dev/sda: 477 GiB, 512110190592 bytes, 1000215216 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 4B21E327-DFE8-4105-AA9B-FEFF8AE8439F
Device Start End Sectors Size Type
/dev/sda1 2048 1026047 1024000 500M EFI System
/dev/sda2 1026048 7317503 6291456 3G Microsoft basic data
/dev/sda3 7317504 933572607 926255104 441.7G Linux filesystem
/dev/sda4 933572608 1000214527 66641920 31.8G Linux swap
Disk /dev/sdb: 477 GiB, 512110190592 bytes, 1000215216 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 9114D615-2FD0-4CF1-A601-DAD4507F6254
Device Start End Sectors Size Type
/dev/sdb1 2048 411647 409600 200M EFI System
/dev/sdb2 411648 2508799 2097152 1G Linux filesystem
/dev/sdb3 2508800 1000214527 997705728 475.8G Linux LVM
Admittedly, this is output from the now-recovered system, but I can
attest that the same was displayed when the command was done using the
Ubuntu system that loaded from /dev/sda.
> The system-upgrade somehow wiped out my boot record on
/dev/sdb.
"boot record" is a BIOS term, so this could mean the code on LBA 0
or in the MBR gap or BIOS Boot partition has been stepped on; but
dnf system upgrade doesn't have such an ability. In fact it's a bit
of a security and bug endurance problem that 'grub2-install' isn't
run on BIOS upgrades. Whereas on UEFI the bootloader binaries on
the EFI System partition are replaced during updates, so what
you're describing might be a GRUB bug.
OK, the system was able to boot from /dev/sdb only after I reinstalled
grub2-efi and shim.
I assumed that was what restored the boot record (or whatever it's
called).
(I was able to boot normally from Fedora immediately before doing the
dnf system-upgrade. A reinstall was not accepted by dnf, so I used
update instead.)
But the details you're giving only lead to speculation so you
need
to provide specifics, just won't boot is identical to what happens
to a computer without a drive at all.
Well, I will not be so fast to restore, if it occurs again (f30).
Thank you for your suggestions. I am sorry for the assumptions I
made.
For what it's worth now:
garry@vfr$ efibootmgr -v
BootCurrent: 0002
Timeout: 1 seconds
BootOrder: 0002,0000,0003,0004,0005,0006,0007,0008,0009
Boot0000 ubuntu HD(1,GPT,3252a9ab-23eb-4fd4-9d11-6dc13c6f50ec,
0x800,0xfa000)/File(\EFI\ubuntu\shimx64.efi)
Boot0002* Fedora HD(1,GPT,0534ef43-afb9-409c-8dc8-a1eff1e396ef,
0x800,0x64000)/File(\EFI\fedora\shim.efi)
Boot0003* UEFI: SanDisk Extreme 0001 PciRoot(0x0)/Pci(0x14,0x0)/
USB(17,0)/HD(1,MBR,0x3cb5dbe1,0x16960,0x2990)..BO
Boot0004* Diskette Drive BBS(Floppy,Diskette Drive,0x0)..BO
Boot0005* P0: SK hynix SC300 SATA 512GB BBS(HD,P0: SK hynix SC300 SATA
512GB ,0x0)..BO
Boot0006* P2: INTEL SSDSC2KF512H6 SATA 5 BBS(HD,P2: INTEL
SSDSC2KF512H6 SATA 5,0x0)..BO
Boot0007* USB Storage Device BBS(USB,SanDisk Extreme 0001,0x0)..BO
Boot0008* CD/DVD/CD-RW Drive BBS(CDROM,P1: PLDS DVD+/-RW DU-8A5LH
,0x0)..BO
Boot0009 Onboard NIC BBS(Network,IBA CL Slot 00FE v0106,0x0)..BO
Boot000B* P2: INTEL SSDSC2KF512H6 SATA 5 BBS(HD,P2: INTEL
SSDSC2KF512H6 SATA 5,0x0)..BO
garry@vfr$ sudo parted -l u s p
[sudo] password for garry:
Model: ATA SK hynix SC300 S (scsi)
Disk /dev/sda: 512GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name
Flags
1 1049kB 525MB 524MB fat32 EFI system partition
boot, esp
2 525MB 3747MB 3221MB fat32 Basic data partition
msftdata
3 3747MB 478GB 474GB ext4
4 478GB 512GB 34.1GB linux-swap(v1)
swap
Model: ATA INTEL SSDSC2KF51 (scsi)
Disk /dev/sdb: 512GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name
Flags
1 1049kB 211MB 210MB fat16 EFI System Partition
boot, esp
2 211MB 1285MB 1074MB ext4
3 1285MB 512GB 511GB lvm
Warning: The driver descriptor says the physical block size is 2048
bytes, but
Linux says it is 512 bytes.
Ignore/Cancel? i
Model: SanDisk Extreme (scsi)
Disk /dev/sdc: 251GB
Sector size (logical/physical): 2048B/512B
Partition Table: mac
Disk Flags:
Number Start End Size File system Name Flags
1 2048B 10.2kB 8192B Apple
2 47.4MB 52.8MB 5448kB EFI
3 52.8MB 64.8MB 12.0MB EFI
garry@vfr$
--
Garry T. Williams