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Re: USB Debian 11 installer and target drive device node [was fstab problem]

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On 5/9/22 12:58, David Wright wrote:
> On Mon 09 May 2022 at 11:30:39 (-0700), David Christensen wrote:
>> On 5/9/22 10:21, David Wright wrote:
>>> On Sun 08 May 2022 at 23:39:31 (-0700), David Christensen wrote:
>>
>>>> As noted by another reader in another thread, the Debian 11 installer
>>>> appears to always assign /dev/sda to d-i USB installation media; in
>>>> spite of decades of standard practice of using the first drive node
>>>> for the target drive.  Thus, the target drive may have been /dev/sdb
>>>> at installation time, resulting in "sdb" in crypttab(5) and/or
>>>> fstab(5) entries rather than the conventional "sda".
>>
>>> This is news to me, and I'm not sure why you blame the d-i's going
>>> against decades of precedent. Yes, it can happen, and I guess it might
>>> be the result of the way the buses are configured inside the machine.
>>> Gone are the simple days of PATAs on hda.
>>>
>>> Anyway, here are six machines: three are laptops, three EFIs, one AiO,
>>> one i386, all GPT, all netinst, variously 11.1–3 with firmware. All
>>> except the last have the installer on sdb, and the reason there is
>>> obvious.

>> I am unsure what is obvious about the last three.  Please clarify.
> 
> No, just the last /one/. The USB stick gets names sda because
> there's no competition from the SSD, which is nvme0n1.


Okay.  That makes sense.


>> Did you install from a USB flash drive or from optical media?  If
>> optical, was the drive internal or external, and what was the
>> interface?
> 
> They're all booted off the same USB stick ...


I just did a few trials with debian-11.3.0-amd64-netinst.iso on a 
different laptop with a different USB target drive.  The target drive 
came up as /dev/sda in each case (!).  The results do not match my 
earlier trials on other computers and targets.


I can only conclude that this is a multi-dimensional problem where the 
target computer (and firmware) is one dimension and the target drive is 
an additional dimension.


David

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Thread

USB Debian 11 installer and target drive device node [was fstab  problem] David Christensen <dpchrist@holgerdanske.com> - 2022-05-09 20:40 +0200
  Re: USB Debian 11 installer and target drive device node [was fstab problem] "Thomas Schmitt" <scdbackup@gmx.net> - 2022-05-09 21:20 +0200
  Re: USB Debian 11 installer and target drive device node [was fstab  problem] David Wright <deblis@lionunicorn.co.uk> - 2022-05-09 22:00 +0200
    Re: USB Debian 11 installer and target drive device node [was fstab  problem] David Christensen <dpchrist@holgerdanske.com> - 2022-05-10 02:40 +0200

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