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Preseed file and hostname not used on installed system

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  Preseed file and hostname not used on installed system john doe <johndoe65534@mail.com> - 2019-06-10 20:30 +0200
    Re: Preseed file and hostname not used on installed system john doe <johndoe65534@mail.com> - 2019-06-11 18:30 +0200
      Re: Preseed file and hostname not used on installed system Jude DaShiell <jdashiel@panix.com> - 2019-06-11 19:40 +0200
      Re: Preseed file and hostname not used on installed system Brian <ad44@cityscape.co.uk> - 2019-06-11 19:50 +0200
        Re: Preseed file and hostname not used on installed system john doe <johndoe65534@mail.com> - 2019-06-12 11:20 +0200
          Re: Preseed file and hostname not used on installed system Brian <ad44@cityscape.co.uk> - 2019-06-12 13:40 +0200
            Re: Preseed file and hostname not used on installed system john doe <johndoe65534@mail.com> - 2019-06-12 16:10 +0200
      Re: Preseed file and hostname not used on installed system Curt <curty@free.fr> - 2019-06-11 19:50 +0200

#209806 — Preseed file and hostname not used on installed system

Hi, I'm installing Debian Stretch using a preseed file, the preseed file
is common for multiple hosts with the exception of the hostname.

boot: auto hostname=try domain=example.com ...
url=tftp://hostname/preseed.cfg

The host name specified is not used when Debian is installed, it is
always set to 'bad'.

I understand the limitations but what is the proper way to specify the
desired hostname or are workarounds (1) the way to go?

Any help/hints is appriciated.


https://unix.stackexchange.com/questions/106614/preseed-cfg-ignoring-hostname-setting


--
John Doe

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#209816

On 6/10/2019 8:24 PM, john doe wrote:
> Hi, I'm installing Debian Stretch using a preseed file, the preseed file
> is common for multiple hosts with the exception of the hostname.
>
> boot: auto hostname=try domain=example.com ...
> url=tftp://hostname/preseed.cfg
>
> The host name specified is not used when Debian is installed, it is
> always set to 'bad'.
>
> I understand the limitations but what is the proper way to specify the
> desired hostname or are workarounds (1) the way to go?
>
> Any help/hints is appriciated.
>
>
> https://unix.stackexchange.com/questions/106614/preseed-cfg-ignoring-hostname-setting
>

After some digging/testing I'm not able to supply by kernel boot
parameter the hostname:

boot: auto hostname=foobar url=...

From what I understand, 'hostname' as kernel boot parameter takes
precedence over the hostname provided by dhcp.


It is miserably failing and I don't understand what I'm missing here?


In other words, how can I set the hostname while using a preseed file
loaded with 'auto url=server'.

Any input is welcome.

--
John Doe

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#209818

I never tried using a debian preseed.cfg file, but I thought there were
some post-install commands that could get issued.  Maybe using one of
these is how you can set hostname.

On Tue, 11 Jun 2019, john doe wrote:

> Date: Tue, 11 Jun 2019 12:25:47
> From: john doe <johndoe65534@mail.com>
> To: debian-user@lists.debian.org
> Subject: Re: Preseed file and hostname not used on installed system
> Resent-Date: Tue, 11 Jun 2019 16:26:06 +0000 (UTC)
> Resent-From: debian-user@lists.debian.org
>
> On 6/10/2019 8:24 PM, john doe wrote:
> > Hi, I'm installing Debian Stretch using a preseed file, the preseed file
> > is common for multiple hosts with the exception of the hostname.
> >
> > boot: auto hostname=try domain=example.com ...
> > url=tftp://hostname/preseed.cfg
> >
> > The host name specified is not used when Debian is installed, it is
> > always set to 'bad'.
> >
> > I understand the limitations but what is the proper way to specify the
> > desired hostname or are workarounds (1) the way to go?
> >
> > Any help/hints is appriciated.
> >
> >
> > https://unix.stackexchange.com/questions/106614/preseed-cfg-ignoring-hostname-setting
> >
>
> After some digging/testing I'm not able to supply by kernel boot
> parameter the hostname:
>
> boot: auto hostname=foobar url=...
>
> From what I understand, 'hostname' as kernel boot parameter takes
> precedence over the hostname provided by dhcp.
>
>
> It is miserably failing and I don't understand what I'm missing here?
>
>
> In other words, how can I set the hostname while using a preseed file
> loaded with 'auto url=server'.
>
> Any input is welcome.
>
> --
> John Doe
>
>

-- 

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#209819

On Tue 11 Jun 2019 at 18:25:47 +0200, john doe wrote:

> On 6/10/2019 8:24 PM, john doe wrote:
> > Hi, I'm installing Debian Stretch using a preseed file, the preseed file
> > is common for multiple hosts with the exception of the hostname.
> >
> > boot: auto hostname=try domain=example.com ...
> > url=tftp://hostname/preseed.cfg
> >
> > The host name specified is not used when Debian is installed, it is
> > always set to 'bad'.
> >
> > I understand the limitations but what is the proper way to specify the
> > desired hostname or are workarounds (1) the way to go?
> >
> > Any help/hints is appriciated.
> >
> >
> > https://unix.stackexchange.com/questions/106614/preseed-cfg-ignoring-hostname-setting
> >
> 
> After some digging/testing I'm not able to supply by kernel boot
> parameter the hostname:
> 
> boot: auto hostname=foobar url=...
> 
> From what I understand, 'hostname' as kernel boot parameter takes
> precedence over the hostname provided by dhcp.

The notes in my preseed.cfg say this is not so if the file is presented
to the installer on a GRUB command line. What works is to have nothing
about hostname in preseed.cfg but put "hostname=..." on the command
line.

-- 
Brian.

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#209833

On 6/11/2019 7:44 PM, Brian wrote:
> On Tue 11 Jun 2019 at 18:25:47 +0200, john doe wrote:
>
>> On 6/10/2019 8:24 PM, john doe wrote:
>>> Hi, I'm installing Debian Stretch using a preseed file, the preseed file
>>> is common for multiple hosts with the exception of the hostname.
>>>
>>> boot: auto hostname=try domain=example.com ...
>>> url=tftp://hostname/preseed.cfg
>>>
>>> The host name specified is not used when Debian is installed, it is
>>> always set to 'bad'.
>>>
>>> I understand the limitations but what is the proper way to specify the
>>> desired hostname or are workarounds (1) the way to go?
>>>
>>> Any help/hints is appriciated.
>>>
>>>
>>> https://unix.stackexchange.com/questions/106614/preseed-cfg-ignoring-hostname-setting
>>>
>>
>> After some digging/testing I'm not able to supply by kernel boot
>> parameter the hostname:
>>
>> boot: auto hostname=foobar url=...
>>
>> From what I understand, 'hostname' as kernel boot parameter takes
>> precedence over the hostname provided by dhcp.
>
> The notes in my preseed.cfg say this is not so if the file is presented
> to the installer on a GRUB command line. What works is to have nothing
> about hostname in preseed.cfg but put "hostname=..." on the command
> line.
>

Can you share those notes or  which notes are you refering to in (1)?

https://www.debian.org/releases/stretch/example-preseed.txt

--
John Doe

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#209839

On Wed 12 Jun 2019 at 11:12:45 +0200, john doe wrote:

> On 6/11/2019 7:44 PM, Brian wrote:
> > On Tue 11 Jun 2019 at 18:25:47 +0200, john doe wrote:
> >
> >> On 6/10/2019 8:24 PM, john doe wrote:
> >>> Hi, I'm installing Debian Stretch using a preseed file, the preseed file
> >>> is common for multiple hosts with the exception of the hostname.
> >>>
> >>> boot: auto hostname=try domain=example.com ...
> >>> url=tftp://hostname/preseed.cfg
> >>>
> >>> The host name specified is not used when Debian is installed, it is
> >>> always set to 'bad'.
> >>>
> >>> I understand the limitations but what is the proper way to specify the
> >>> desired hostname or are workarounds (1) the way to go?
> >>>
> >>> Any help/hints is appriciated.
> >>>
> >>>
> >>> https://unix.stackexchange.com/questions/106614/preseed-cfg-ignoring-hostname-setting
> >>>
> >>
> >> After some digging/testing I'm not able to supply by kernel boot
> >> parameter the hostname:
> >>
> >> boot: auto hostname=foobar url=...
> >>
> >> From what I understand, 'hostname' as kernel boot parameter takes
> >> precedence over the hostname provided by dhcp.
> >
> > The notes in my preseed.cfg say this is not so if the file is presented
> > to the installer on a GRUB command line. What works is to have nothing
> > about hostname in preseed.cfg but put "hostname=..." on the command
> > line.
> >
> 
> Can you share those notes or  which notes are you refering to in (1)?
> 
> https://www.debian.org/releases/stretch/example-preseed.txt

These notes are just comments I have made myself in preseed.cfg.

 # This sets the hostname for the system; it ignores names provided by
 # DHCP or DNS. 'hostname=' on the command line of the installer does
 # not override it. Comment out the next line to use 'hostname='.
 d-i netcfg/hostname string stretch

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#209841

On 6/12/2019 1:38 PM, Brian wrote:
> On Wed 12 Jun 2019 at 11:12:45 +0200, john doe wrote:
>
>> On 6/11/2019 7:44 PM, Brian wrote:
>>> On Tue 11 Jun 2019 at 18:25:47 +0200, john doe wrote:
>>>
>>>> On 6/10/2019 8:24 PM, john doe wrote:
>>>>> Hi, I'm installing Debian Stretch using a preseed file, the preseed file
>>>>> is common for multiple hosts with the exception of the hostname.
>>>>>
>>>>> boot: auto hostname=try domain=example.com ...
>>>>> url=tftp://hostname/preseed.cfg
>>>>>
>>>>> The host name specified is not used when Debian is installed, it is
>>>>> always set to 'bad'.
>>>>>
>>>>> I understand the limitations but what is the proper way to specify the
>>>>> desired hostname or are workarounds (1) the way to go?
>>>>>
>>>>> Any help/hints is appriciated.
>>>>>
>>>>>
>>>>> https://unix.stackexchange.com/questions/106614/preseed-cfg-ignoring-hostname-setting
>>>>>
>>>>
>>>> After some digging/testing I'm not able to supply by kernel boot
>>>> parameter the hostname:
>>>>
>>>> boot: auto hostname=foobar url=...
>>>>
>>>> From what I understand, 'hostname' as kernel boot parameter takes
>>>> precedence over the hostname provided by dhcp.
>>>
>>> The notes in my preseed.cfg say this is not so if the file is presented
>>> to the installer on a GRUB command line. What works is to have nothing
>>> about hostname in preseed.cfg but put "hostname=..." on the command
>>> line.
>>>
>>
>> Can you share those notes or  which notes are you refering to in (1)?
>>
>> https://www.debian.org/releases/stretch/example-preseed.txt
>
> These notes are just comments I have made myself in preseed.cfg.
>
>  # This sets the hostname for the system; it ignores names provided by
>  # DHCP or DNS. 'hostname=' on the command line of the installer does
>  # not override it. Comment out the next line to use 'hostname='.
>  d-i netcfg/hostname string stretch
>

Actually, this line is already commented out in my preseed file!
With this same file passing 'hostname' and 'domaine' as kernel boot
parameters works when installing Stretch in a VM.

I'm still missing something here but I need to move on.

My thanks goes to you Brian and also to Curt and Jude.

--
John Doe

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#209820

On 2019-06-11, john doe <johndoe65534@mail.com> wrote:
>
> In other words, how can I set the hostname while using a preseed file
> loaded with 'auto url=server'.
>
> Any input is welcome.

Maybe this bug report (patch from canonical at bottom) will be of help
(although the patch checks for netcfg/hostname in the preseed at
post-install time and proceeds from there, a method that I believe was
alluded to by Jude).

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=755848

> --
> John Doe
>
>


-- 
“Decisions are never really made – at best they manage to emerge, from a chaos
of peeves, whims, hallucinations and all around assholery.” – Thomas Pynchon

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