> Can you recommend any sites or webpages that explain simply how to install
> by putting the ISO file onto a USB stick, or how to create a partition and
> get the ISO file into it and then run the installation?

I'll provide the following links

- https://ubuntu.com/tutorials/tutorial-create-a-usb-stick-on-ubuntu#1-overview
- https://ubuntu.com/tutorials/tutorial-create-a-usb-stick-on-macos#1-overview
- https://ubuntu.com/tutorials/tutorial-create-a-usb-stick-on-windows#1-overview

Myself, and for a number of year(s) now  (after wiping a drive array,
and backup drive using `dd`) I nearly always just use mkusb -
https://help.ubuntu.com/community/mkusb

in fact a ISO written yesterday on this box (jammy daily of Lubuntu
22.04.5) was written with this command  (after zsync to update the
daily ISO)

guiverc@d960-ubu2:/de2900/lubuntu_64$   dus jammy-desktop-amd64.iso

and just following/answering various prompts...

My comment was based on various support queries on users who've had
issues with DVD media; such as
https://discourse.lubuntu.me/t/bug-failed-snap-daemon-in-lubuntu-22-04-lts-no-firefox-help-please/3246
and others like it.

I just remember it taking a lot longer than USB media did, having many
occasional problems, that didn't happen when when USB media was used;
thus I assumed you didn't have working USB ports which why I mentioned
the writing of ISOs to hard drive on old IBM thinkpad t43p etc.  I
would recommend using good branded USB media instead & save yourself
the hassle.

If the ISO is written/burnt to USB thumb-drive media, yes I'd expect
it to be offered as a boot option using whatever key your device uses
(the key varies on device significantly; and I have a couple of
devices I don't use much in QA-testing as they're a pain to get
thumb-drive media to boot with; where as others are dead easy).

Do note - when you download an ISO, it sits as a 'data file' on your
disk. If written to thumb-drive media as just a file on the
thumb-drive (ie. data), it won't be bootable (unless you've made the
thumb-drive bootable already with software that looks for what's on it
& offers it as a menu etc). The ISO file is written to the thumb-drive
so it's bootable with specific software; see links I provided earlier.
Also note the USB ports don't show up, but your device's firmware will
detect bootable USB media inserted & the media itself should appear if
correctly written.

I don't know about your wireless issue, but I suspect it's related to
the kernel; which is why I talked about what kernel stack choice you
used with other releases; ie. 20.04 using HWE has possibly only very
recently upgraded itself to the 5.15 kernel for you meaning it's now
on the same kernel as 22.04 has; thus I'd wonder if you received the
same issue on 20.04? though if you were using the GA kernel stack with
20.04 you won't have had any issue as that remains on 5.4

My guess is your wifi issue (note: guess & I have no idea!) relates to
the 5.15 kernel; and I've seen a few support queries relating to wifi
in recent day(s), but wifi isn't an area that interests me so I tend
to ignore them. My 'guess' is the issue would be the same if you clean
installed, dirty installed, or release-upgraded to 22.04 - but that's
just my (~guess) opinion.

Chris (guiverc)

On 7/2/22, David <ag...@justemail.net> wrote:
> Hi Chris
>
> thanks for your time.
>
> The laptop on which I have been using Ubuntu, since around 2013 (and the
> laptop is older than that) is a Lenovo T400. It has working USB ports.
>
> The version of Ubuntu that I am trying to install is the version for desktop
> PCs and laptops.
>
> You reckon it could well be to do with using optical media.
> It sounds like you're suggesting installation from USB or from putting the
> ISO file into a partition.
> Can you recommend any sites or webpages that explain simply how to install
> by putting the ISO file onto a USB stick, or how to create a partition and
> get the ISO file into it and then run the installation?
>
> Should the USB ports show up as an option when I hit F12 at startup, the way
> the optical drive does?
>
> D'you reckon there's a good chance that the wireless problem will be gone if
> I were to do the online upgrade from 20.04 to 22.04? And is that as good as
> doing a clean install of 22.04?
>
> Thank you
>
> Dave
>
> On Sat, Jul 2, 2022, at 12:03 PM, Chris Guiver wrote:
>> G'day
>>
>> I'm involved with QA & in particular a flavor, if my background is
>> helpful.
>>
>> You mention old hardware; I've used devices from 2003 and upwards in
>> the QA; though i386 devices were not used beyond 19.04 except for
>> respins of 18.04 (eg. 18.04.4 & 18.04.5)
>>
>>> Last week I decided to move up from 18.04 and tried the online Upgrade
>>> option for the first time (instead of a clean install from a live disk).
>>> The upgrade to 20.04 LTS completed, but I had no internet connection. I
>>> googled this and saw info about something called Netplan
>>
>> You didn't say if you're talking about a desktop system
>> (NetworkManager) or server system (Netplan). The mention of netplan
>> implies you're asking about a server system? but it could also be your
>> misunderstanding.  Desktop systems use NetworkManager still; but it's
>> best if you're specific & readers aren't having to guess.
>>
>>> So yesterday I burnt the 22.04 LTS ISO onto a brand-new rewritable DVD
>>> and tried to do a clean install, held down F12 at start up, chose the
>>> optical drive, selected “Try or Install Ubuntu”
>>
>> Here we get to potential problems... Changes were made starting with
>> 20.10 that can have negative consequences for those using optical
>> media (eg. DVD).  The optical media is designed for sequential
>> reading, but the media verification reads files on a file-by-file type
>> basis, and timeouts can occur with optical drives which can can
>> problems (failed to start issues; particularly with snap..) etc.
>> Reboot & re-try, and it may work the next time, as beyond being very
>> slow, it's somewhat problematic as it's hardware timeouts that cause
>> the issue/failures.
>>
>> In my QA testing, I used some really old IBM Thinkpads that didn't
>> have working (bootable) USB ports; thus I'd download/write the ISO to
>> a drive partition, and use that instead of USB media (installing to
>> another part of the disk for example). Yes the laptops actually had
>> DVD drives; but it was far easier/faster/reliable to use hard-drive
>> over optical media. You might want to consider that instead of optical
>> media (I would and did!)
>>
>> There is a bug report that will mitigate some of the issues with
>> optical/slow media but it's not yet available for 22.04 (it maybe
>> available using 22.04.1 media but unclear yet; that's still a month
>> away). But I'm warning you'll have complications with optical media as
>> it's not the intended installation media for Ubuntu releases beyond
>> 20.04.
>>
>> Some effort is made to ensure it works (why the bug I mentioned exists
>> & is being tracked or 22.04.1), but it's not high priority as almost
>> no users use optical media & development resources are limited.
>>
>> You gave no details as to what hardware stack you were using for each
>> release; as Ubuntu 20.04 LTS if using a GA kernel stack uses 5.4 which
>> differs greatly to 22.04 (5.15), but if using 20.04 with HWE you'll be
>> using either 5.13 (20.04.4) or 5.15 (20.04.5 that's rolling out ~now
>> so if fully upgraded you maybe using 22.04's kernel stack already on
>> 20.04). You may find using alternate kernel stack (easy) helps, though
>> as 22.04 is still ~young, both GA & HWE are on the same stack so no
>> choices there exist yet.
>>
>> On older devices in QA; I found the kernel stacks made a big
>> difference; and as both stacks can co-exist on the same device (unless
>> certain closed-source kernel modules are being used; aka video
>> drivers) they were an easy fix for some users who had issues & sought
>> support (eg. 18.04 with HWE uses the same kernel stack as found with
>> 20.04 using the GA stack.. thus if it works with 18.04+HWE, I'd expect
>> no issues with 20.04+GA)
>>
>> Installations using optical media are for sure possible; they just
>> aren't easy & multiple attempts maybe required before it works; at
>> least that's what was found in QA; also they're very slow (esp. beyond
>> 20.10 as already stated).  I suggest avoiding using optical media for
>> installs if you can.
>>
>> Chris g.

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