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Re: Disk partitioning phase of installation



On Sat 16 Oct 2021 at 18:47:25 (+0100), Brian wrote:
> On Sat 16 Oct 2021 at 10:12:34 -0500, David Wright wrote:
> 
> [Lots of snipping]
> 
> > If you want to see a blow-by-blow example of the partitioner, you
> > could revisit this post from a while back. IIRC the thread exercises
> > most of the wrinkles that could occur if the user interface is
> > misunderstood.
> > 
> > https://lists.debian.org/debian-user/2015/02/msg00153.html
> > 
> > It's difficult to envisage a time when each and every d-i screen would
> > be documented at this sort of level. I've no idea what the "limits" are
> > of which you speak.
> 
> The Installer Guide dots many i's and crosses many t's. However,
> you yourself have  sent many fine text screeshots of the installer
> in action to -user.(I have never found out how they were produced).
> 
> One picture is worth..., etc. I wonder whether the Guide would
> benefit from an appendix showing something similar.

Expert install, step 1¹ is:

  ┌────────────────────┤ [?] Load installer components from CD ├────────────────────┐   
  │                                                                                 │   
  │ All components of the installer needed to complete the install will be loaded   │   
  │ automatically and are not listed here. Some other (optional) installer          │   
  │ components are shown below. They are probably not necessary, but may be         │   
  │ interesting to some users.                                                      │   
  │                                                                                 │   
  │ Note that if you select a component that requires others, those components      │   
  │ will also be loaded.                                                            │   
  │                                                                                 │   
  │ Installer components to load:                                                   │   
  │        …    …    …    …    …    …    …    …    …    …    …    …                 │   
  │    [*] network-console: Continue installation remotely using SSH             ▒  │   
  │        …    …    …    …    …    …    …    …    …    …    …    …                 │   
  │                                                                                 │   
  │     <Go Back>                                                    <Continue>     │   
  │                                                                                 │   
  └─────────────────────────────────────────────────────────────────────────────────┘   

When you see the opportunity to execute this command, step 2 is:

          ┌────────────────┤ [?] Debian installer main menu ├────────────────┐          
          │                                                                  │          
          │ Choose the next step in the install process:                     │          
          │                                                                  │          
          │  …    …    …    …    …    …    …    …    …                       │          
          │  Detect network hardware                                         │          
          │  Configure the network                                           │          
          │  Continue installation remotely using SSH ← I faked this line ²  │          
          │  Set up users and passwords                                      │          
          │  …    …    …    …    …    …    …    …    …                       │          
          │                                                                  │          
          └──────────────────────────────────────────────────────────────────┘          

  ┌────────────────┤ [!!] Continue installation remotely using SSH ├────────────────┐   
  │                                                                                 │   
  │ You need to set a password for remote access to the Debian installer. A         │   
  │ malicious or unqualified user with access to the installer can have disastrous  │   
  │ results, so you should take care to choose a password that is not easy to       │   
  │ guess. It should not be a word found in the dictionary, or a word that could be │   
  │ easily associated with you, like your middle name.                              │   
  │                                                                                 │   
  │ This password is only used by the Debian installer, and will be discarded once  │   
  │ you finish the installation.                                                    │   
  │                                                                                 │   
  │ Remote installation password:                                                   │   
  │                                                                                 │   
  │ _                                                                               │   
  │                                                                                 │   
  │ [ ] Show Password in Clear                                                      │   
  │                                                                                 │   
  │                                  <Continue>                                     │   
  │                                                                                 │   
  └─────────────────────────────────────────────────────────────────────────────────┘   

[ repeated]

  ┌────────────────┤ [!!] Continue installation remotely using SSH ├────────────────┐   
  │                                                                                 │   
  │                                    Start SSH                                    │   
  │ To continue the installation, please use an SSH client to connect to the IP     │   
  │ address 192.168.1.xxx fe80::xxx:xxxx:xxxx:xxxx and log in as the "installer"    │   
  │ user. For example:                                                              │   
  │                                                                                 │   
  │    ssh installer@192.168.1.nnn                                                  │   
  │                                                                                 │   
  │ The fingerprint of this SSH server's host key is:                               │   
  │                                                                                 │   
  │ SHA256:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ³                            │   
  │                                                                                 │   
  │ Please check this carefully against the fingerprint reported by your SSH client.│   
  │                                                                                 │   
  │                                  <Continue> ⁴                                   │   
  │                                                                                 │   
  └─────────────────────────────────────────────────────────────────────────────────┘   

On another machine, in an xterm, step 3 is:

$ ssh -o GlobalKnownHostsFile=/dev/null -o UserKnownHostsFile=/dev/null installer@192.168.1.nnn

  ┌────────────────────────────┤ [!!] Configuring d-i ├─────────────────────────────┐   
  │                                                                                 │   
  │ This is the network console for the Debian installer. From here, you may        │   
  │ start the Debian installer, or execute an interactive shell.                    │   
  │                                                                                 │   
  │ To return to this menu, you will need to log in again.                          │   
  │                                                                                 │   
  │ Network console option:                                                         │   
  │                                                                                 │   
  │                        Start installer                                          │   
  │                        Start installer (expert mode)                            │   
  │                        Start shell                                              │   
  │                                                                                 │   
  └─────────────────────────────────────────────────────────────────────────────────┘   

Continue to install, copy/pasting whichever screens you want.
Note that with text, you can't record your responses selected
by highlighting rather than by *.

You can save time capturing the screens by executing   script   before
running ssh, and then replaying the script through   col -b.
(Some tidying up may be required.)

¹ To capture the earliest screens, one can just execute steps that
  have already been completed.
² Once you've opened a remote installer, that command is never seen
  again.
³ Despite the advice given above, there are occasions when installing
  a newer version from an older system that the client might display
  an out-of-date fingerprint.
⁴ Don't press continue unless you're going to, say, abort. One could
  get very confused with several main menu instances.

Cheers,
David.


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