[OPLINTECH] SSDs have quit working?

[Chad Neeper]

>
> It looks as if it was trying a network boot first.

Not necessarily. If PXE is in the boot order as a later item in the list
and the earlier items in the list don't contain bootable devices, then
it'll get to and try PXE. So picture could simply be showing that the
previous boot devices in the list didn't boot and so it's trying PXE last
(and failing because no TFTP server configured, etc.).

I think Chad has has seen an occasional Windows update problem.

*Occasional*?   *snort*
But you're right-ish. DF + Windows Updates == occasional boot problems. But
the symptoms are different. Lynne' problem is earlier in the boot process
where the firmware is trying to hand over control to a boot sector stored
on some boot device (BIOS or UEFI w/BIOS-compatibility enabled) or to an OS
loader/OS kernel (EFI/UEFI-style). The firmware isn't finding a device with
a valid boot sector or OS loader/kernel and so finally gives up with the
"ERROR: No boot disk has been detected..." message. The problem appears to
either be hardware failure, the UEFI boot manager has become corrupted or
otherwise changed (if these are EFI/UEFI computers), or an important part
of the storage device has become corrupted. In the Windows Update scenario,
the firmware has found a boot device and has handed execution over to the
executables on the storage device and is failing slightly later in the boot
process.

In retrospect, I suppose it's *possible* that it could be the same
problem:  When installing Windows, by default, a Windows partition is
created for typical booting, but a Recovery Partition is also created. The
recovery partition is booted when the normal Windows partition won't boot.
With the Windows Update problems I've experienced, the normal Windows
partition fails over to the recovery partition. But if there is no recovery
partition on her computers, then it could show the "no boot disk" error.
That's probably not the case, though.

An aside:
https://en.wikipedia.org/wiki/Unified_Extensible_Firmware_Interface#Booting
Gives
a brief overview of the (U)EFI boot process. UEFI isn't BIOS so it might be
a little hard to wrap your head around if you cut your teeth on BIOS. I
still have to catch myself sometimes and reorient my thinking about the
firmware.


______________________________
*Chad Neeper*
Senior Systems Engineer

*Level 9 Networks*
740-548-8070 (voice)
866-214-6607 (fax)

*Full IT/Computer consulting services -- Specialized in public libraries*


On Mon, Sep 9, 2019 at 11:56 AM Bob Neeper via OPLINTECH <
oplintech at lists.oplin.org> wrote:

> FWIW Chad didn't mention these.
>
> Are 3,4 & 5 in an area not under observation, where a patron could be
> doing something?
> Is USB and other device booting inhibited?
> It looks as if it was trying a network boot first.
>
> Is the UEFI password protected?
> I think if the AHCI setting got changed to IDE, or vice versa there may be
> OS problems.
>
> Is DeepFreeeze installed?
> I think Chad has has seen an occasional Windows update problem.
>
> R. W. (Bob) Neeper
> (Retired Toledo Scale Engineer & Library Computer Guy)neeperro at gmail.com
>
> Doing Genealogy at:
> Community Library
> Sunbury, Ohio
>
> On 9/9/2019 10:26 AM, Lynne Welch via OPLINTECH wrote:
>
> Hello colleagues,
>
> We have 5 HP Pro 3500 Series MT desktop units used by the public. All
> bought at the same time with the same specs from the same people. In April
> or May 2018 we replaced the hard drives with Kingston SSDs so they would be
> faster.
>
> Early in August 2019 we came in one day and OPLIN 1 and 2 were just fine,
> but 3, 4, and 5 showed "Cannot boot". I've attached a screenshot.
>
> New Kingston SSDs did not solve the problem, so we replaced them with
> Intel SSDs in OPLIN 3 and 4 last Thursday. We re-installed the original
> hard drive in OPLIN 5 since we could only get 2 Intel SSDs.
>
> Today OPLINs 3 and 4 show the same "cannot boot" error, while 1 and 2 (on
> the original Kingston SSDs), and 5 (on the original harddrive it came with)
> are humming along just fine. Argh!
>
> We are at our wit's end, especially with school starting back up. Any
> suggestions?
>
> Thanks,
>
> Lynne
> --
> Lynne Welch – Herrick Memorial Library of Wellington, Ohio USA
> tel 440-647-2120 email welchly at herrickliboh.org
>
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