I did a clean install of VirtualBox 7.06 (on Windows 10 Pro), and
installed LM 21.1.

All went well. On subsequent restart I get the error (copied from the Log)

00:00:08.027292 VMMDev: Guest Log: BIOS: Boot from Hard Disk 0 failed
00:00:08.027878 VMMDev: Guest Log: BIOS: No bootable medium found!

The proper dvi file is shown in the "Storage" (I "selected" it again, to
make sure).
Settings show SATA Port 0, Solid State Drive and "Hot Pluggable", are
both currently selected, but I think they were originally unset.

I've tried various things (redundantly..), but I hope someone can assist
me. Thank you!

Bill wrote:
> I did a clean install of VirtualBox 7.06 (on Windows 10 Pro), and
> installed LM 21.1.
>
> All went well. On subsequent restart I get the error (copied from the Log)
>
> 00:00:08.027292 VMMDev: Guest Log: BIOS: Boot from Hard Disk 0 failed
> 00:00:08.027878 VMMDev: Guest Log: BIOS: No bootable medium found!
>
> The proper dvi file is shown in the "Storage" (I "selected" it again, to
> make sure).
> Settings show SATA Port 0, Solid State Drive and "Hot Pluggable", are
> both currently selected, but I think they were originally unset.
>
> I've tried various things (redundantly..), but I hope someone can assist
> me.  Thank you!

Troubleshooting "No Bootable Medium Found" Error in VirtualBox

https://itsfoss.com/virtualbox-no-bootable-medium-found/

On 3/4/2023 8:09 AM, Andrei Z. wrote:
> Bill wrote:
>> I did a clean install of VirtualBox 7.06 (on Windows 10 Pro), and
>> installed LM 21.1.
>>
>> All went well. On subsequent restart I get the error (copied from the
>> Log)
>>
>> 00:00:08.027292 VMMDev: Guest Log: BIOS: Boot from Hard Disk 0 failed
>> 00:00:08.027878 VMMDev: Guest Log: BIOS: No bootable medium found!
>>
>> The proper dvi file is shown in the "Storage" (I "selected" it again,
>> to make sure).
>> Settings show SATA Port 0, Solid State Drive and "Hot Pluggable", are
>> both currently selected, but I think they were originally unset.
>>
>> I've tried various things (redundantly..), but I hope someone can
>> assist me.  Thank you!
>
> Troubleshooting "No Bootable Medium Found" Error in VirtualBox
>
> https://itsfoss.com/virtualbox-no-bootable-medium-found/
>

Thank you for this! It makes me feel like I'm in good company--instead
of being the only one encountering this problem. I think I'll "start
fresh". I did such a thorough job of customizing my installation I was
hesitating about doing that.

On 3/5/2023 12:16 AM, Bill wrote:
> On 3/4/2023 8:09 AM, Andrei Z. wrote:
>> Bill wrote:
>>> I did a clean install of VirtualBox 7.06 (on Windows 10 Pro), and
>>> installed LM 21.1.
>>>
>>> All went well. On subsequent restart I get the error (copied from the
>>> Log)
>>>
>>> 00:00:08.027292 VMMDev: Guest Log: BIOS: Boot from Hard Disk 0 failed
>>> 00:00:08.027878 VMMDev: Guest Log: BIOS: No bootable medium found!
>>>
>>> The proper dvi file is shown in the "Storage" (I "selected" it again,
>>> to make sure).
>>> Settings show SATA Port 0, Solid State Drive and "Hot Pluggable", are
>>> both currently selected, but I think they were originally unset.
>>>
>>> I've tried various things (redundantly..), but I hope someone can
>>> assist me.  Thank you!
>>
>> Troubleshooting "No Bootable Medium Found" Error in VirtualBox
>>
>> https://itsfoss.com/virtualbox-no-bootable-medium-found/
>>
>
> Thank you for this! It makes me feel like I'm in good company--instead
> of being the only one encountering this problem. I think I'll "start
> fresh". I did such a thorough job of customizing my installation I was
> hesitating about doing that.

Didn't work. Next time I'll try "installing" in EFI mode.

On 3/5/2023 3:17 AM, Bill wrote:

>
> Didn't work.  Next time I'll try "installing" in EFI mode.

The EFI popup boot key is <esc>, and depending on the hosting
software, you have to hammer the living shit out of that key,
to meet the tiny timing window.

If successful, you can select a storage device in the Guest
as the boot device.

This covers cases where the machine throws a "No bueno" and
refuses to admit anything bootable is in there.

Look in the Guest settings, for the tick box to turn on EFI support.

Enable EFI (special OSes only)

You would turn that on, before the install, and boot your hybrid ISO
with that enabled.

Paul

On 3/5/2023 4:39 AM, Paul wrote:
> On 3/5/2023 3:17 AM, Bill wrote:
>
>>
>> Didn't work.  Next time I'll try "installing" in EFI mode.
>
> The EFI popup boot key is <esc>, and depending on the hosting
> software, you have to hammer the living shit out of that key,
> to meet the tiny timing window.
>
> If successful, you can select a storage device in the Guest
> as the boot device.
>
> This covers cases where the machine throws a "No bueno" and
> refuses to admit anything bootable is in there.
>
> Look in the Guest settings, for the tick box to turn on EFI support.
>
>        Enable EFI (special OSes only)
>
> You would turn that on, before the install, and boot your hybrid ISO
> with that enabled.
>
>    Paul
>

Yes, I'm going to try that. It didn't help using it (only) post install.

Thanks!

On 3/5/2023 4:39 AM, Paul wrote:
> On 3/5/2023 3:17 AM, Bill wrote:
>
>>
>> Didn't work.  Next time I'll try "installing" in EFI mode.
>
> The EFI popup boot key is <esc>, and depending on the hosting
> software, you have to hammer the living shit out of that key,
> to meet the tiny timing window.
>
> If successful, you can select a storage device in the Guest
> as the boot device.
>
> This covers cases where the machine throws a "No bueno" and
> refuses to admit anything bootable is in there.
>
> Look in the Guest settings, for the tick box to turn on EFI support.
>
>        Enable EFI (special OSes only)
>
> You would turn that on, before the install, and boot your hybrid ISO
> with that enabled.
>
>    Paul

It brings me into "UEFI mode", and while I tried alot of things, I
couldn't proceed through it (with "continue") to do the install. I
presume I was to try to boot the virtual "optical" driver so that it
would see my iso file. Is there a command, besides "exit" from the UEFI
mode I might find useful?

On 3/5/2023 9:05 AM, Bill wrote:
> On 3/5/2023 4:39 AM, Paul wrote:
>> On 3/5/2023 3:17 AM, Bill wrote:
>>
>>>
>>> Didn't work.  Next time I'll try "installing" in EFI mode.
>>
>> The EFI popup boot key is <esc>, and depending on the hosting
>> software, you have to hammer the living shit out of that key,
>> to meet the tiny timing window.
>>
>> If successful, you can select a storage device in the Guest
>> as the boot device.
>>
>> This covers cases where the machine throws a "No bueno" and
>> refuses to admit anything bootable is in there.
>>
>> Look in the Guest settings, for the tick box to turn on EFI support.
>>
>>         Enable EFI (special OSes only)
>>
>> You would turn that on, before the install, and boot your hybrid ISO
>> with that enabled.
>>
>>     Paul
>
> It brings me into "UEFI mode", and while I tried alot of things, I couldn't proceed through it (with "continue") to do the install. I presume I was to try to boot the virtual "optical" driver so that it would see my iso file. Is there a command, besides "exit" from the UEFI mode I might find useful?
>

Does it look like this, when you hammer <esc> key ?

[Picture]

https://i.postimg.cc/kgbgJTrD/Boot-Manager-via-ESC-key.gif

It's one of those tab and arrow key things, <cr> when you
land on the desired entry.

Paul

On 3/5/2023 11:42 PM, Paul wrote:
> On 3/5/2023 9:05 AM, Bill wrote:
>> On 3/5/2023 4:39 AM, Paul wrote:
>>> On 3/5/2023 3:17 AM, Bill wrote:
>>>
>>>>
>>>> Didn't work.  Next time I'll try "installing" in EFI mode.
>>>
>>> The EFI popup boot key is <esc>, and depending on the hosting
>>> software, you have to hammer the living shit out of that key,
>>> to meet the tiny timing window.
>>>
>>> If successful, you can select a storage device in the Guest
>>> as the boot device.
>>>
>>> This covers cases where the machine throws a "No bueno" and
>>> refuses to admit anything bootable is in there.
>>>
>>> Look in the Guest settings, for the tick box to turn on EFI support.
>>>
>>>         Enable EFI (special OSes only)
>>>
>>> You would turn that on, before the install, and boot your hybrid ISO
>>> with that enabled.
>>>
>>>     Paul
>>
>> It brings me into "UEFI mode", and while I tried alot of things, I
>> couldn't proceed through it (with "continue") to do the install. I
>> presume I was to try to boot the virtual "optical" driver so that it
>> would see my iso file. Is there a command, besides "exit" from the
>> UEFI mode I might find useful?
>>
>
> Does it look like this, when you hammer <esc> key ?
>
>    [Picture]
>
>    https://i.postimg.cc/kgbgJTrD/Boot-Manager-via-ESC-key.gif
>
> It's one of those tab and arrow key things, <cr> when you
> land on the desired entry.
>
>    Paul
>

Yes, I was able to do the install through the (virtual) optical drive.
Vut after trying to boot again I can't get passed that "boot
manager"--unless I direct it to reboot from the optical drive (iso). I
tried the process again today using an "admin" account, but that didn't
seem to help. Something I read made me wonder whether "Windows Defender"
could be getting in the way.

On 3/5/2023 11:57 PM, Bill wrote:
> On 3/5/2023 11:42 PM, Paul wrote:
>> On 3/5/2023 9:05 AM, Bill wrote:
>>> On 3/5/2023 4:39 AM, Paul wrote:
>>>> On 3/5/2023 3:17 AM, Bill wrote:
>>>>
>>>>>
>>>>> Didn't work.  Next time I'll try "installing" in EFI mode.
>>>>
>>>> The EFI popup boot key is <esc>, and depending on the hosting
>>>> software, you have to hammer the living shit out of that key,
>>>> to meet the tiny timing window.
>>>>
>>>> If successful, you can select a storage device in the Guest
>>>> as the boot device.
>>>>
>>>> This covers cases where the machine throws a "No bueno" and
>>>> refuses to admit anything bootable is in there.
>>>>
>>>> Look in the Guest settings, for the tick box to turn on EFI support.
>>>>
>>>>         Enable EFI (special OSes only)
>>>>
>>>> You would turn that on, before the install, and boot your hybrid ISO
>>>> with that enabled.
>>>>
>>>>     Paul
>>>
>>> It brings me into "UEFI mode", and while I tried alot of things, I couldn't proceed through it (with "continue") to do the install. I presume I was to try to boot the virtual "optical" driver so that it would see my iso file. Is there a command, besides "exit" from the UEFI mode I might find useful?
>>>
>>
>> Does it look like this, when you hammer <esc> key ?
>>
>>     [Picture]
>>
>>     https://i.postimg.cc/kgbgJTrD/Boot-Manager-via-ESC-key.gif
>>
>> It's one of those tab and arrow key things, <cr> when you
>> land on the desired entry.
>>
>>     Paul
>>
>
> Yes, I was able to do the install through the (virtual) optical drive.
> Vut after trying to boot again I can't get passed that "boot manager"--unless I direct it to reboot from the optical drive (iso).  I tried the process again today using an "admin" account, but that didn't seem to help. Something I read made me wonder whether "Windows Defender" could be getting in the way.
>

I don't think Windows would interfere with VirtualBox internal operations.

Here, you can see the GRUB points to GPT2, which agrees with gnome-disks.

[Picture]

https://i.postimg.cc/8zb2Cgzy/EFI-LM211-in-Virtualbox.gif

Booting (with EFI enabled) was uneventful.

The shutdown of the install session froze on me (did not seem
to answer ping), so the ending of that was abnormal, but I think
it likely the partition was put away, before it blew.

Booting my new install, it shut down normally.

You can see I used "testdisk" and "gnome-disks" to check out my
boot materials. The EFI has a Ubuntu folder, which is used by
LinuxMint. No other OSes were present (the demo is a uni-boot).

Those are tools you can use from the LiveDVD, should you choose
to boot it inside that environment again.

You could also use the Boot Rescue inside that environment,
but I don't see a reason to get excited just yet..

Paul

On 3/4/2023 7:22 AM, Bill wrote:
> I did a clean install of VirtualBox 7.06 (on Windows 10 Pro), and
> installed LM 21.1.
>
> All went well. On subsequent restart I get the error (copied from the Log)
>
> 00:00:08.027292 VMMDev: Guest Log: BIOS: Boot from Hard Disk 0 failed
> 00:00:08.027878 VMMDev: Guest Log: BIOS: No bootable medium found!

I watched a YouTube video on how to do this install. I thought, not much
new here. Then when I tried again, I recalled that the person in the
video clicked on the "Install Linux Mint" icon on the virtual desktop...

Color me, :::embarrassed::: !

I apologize, especially to Paul.

I'm going to do it all over again, and get the installation "just right".

Thank you for your support!