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Re: How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card to a 16Gb Class 10 A1 MicroSD card?

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On 9/18/21 4:35 AM, Myron wrote:
> Never done this one with Linux before.  I know that there is less than 16Gb
> of data written to the Class 10 32Gb MicroSD card which is used as the
> primary system storage on a single board system-on-a-chip computer.  What
> I'm after is getting a 16 Gb Class 10 A1 MicroSD card and clone the entire
> system from the 32Gb card to the 16Gb card.
> 
> What I'm after is when I start the SOC computer from the replacement 16Gv
> Class 10 A1 MicroSD card, it will just start like there have been no
> changes, well, apart from there being 16Gb storage and not slower 32Gb
> storage.
> 
> This is relatively easy to do on Windows.  No clue how to do this with
> Linux.
> 


Backup your data.  I would take a raw binary image of the entire 32 GB 
MicroSD card as well.


My guess is that you should resize the contents of the 32 GB MicroSD 
card to fit onto the 16 GB MicroSD card, and then clone.


But, the devil is in the details and it would be helpful if we had more 
information...


What is the make and model of your "single board system-on-a-chip 
computer" (SBC)?  What CPU, memory, or other options does it have?  What 
is the technical support URL?


Is the SBC connected to a keyboard, mouse, and monitor, to a serial 
console, or to some other console?  Can you SSH into it?


How did you create a working Debian (?) GNU/Linux instance on the 32 GB 
MicroSD card?  If you followed some instructions, what is the URL?


On the 32 GB MicroSD card Debian instance, please login as root, run the 
following commands, and reply with the complete console session -- 
prompts, commands entered, output obtained:

# /bin/bash -l

# export PS1='\n\D{%Y-%m-%d %H:%M:%S} \u@\h \w\n\$ '

# cat /etc/debian_version ; uname -a

# egrep 'vendor_id|model name' /proc/cpuinfo | head -n 2

# grep MemTotal /proc/meminfo

# fdisk -l


David

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Thread

How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card to a  16Gb Class 10 A1 MicroSD card? Myron <myron@co-hop.uk> - 2021-09-18 13:50 +0200
  Re: How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card  to a 16Gb Class 10 A1 MicroSD card? Reco <recoverym4n@enotuniq.net> - 2021-09-18 14:00 +0200
    Re: How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card  to a 16Gb Class 10 A1 MicroSD card? The Wanderer <wanderer@fastmail.fm> - 2021-09-18 14:10 +0200
      Re: How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card  to a 16Gb Class 10 A1 MicroSD card? Reco <recoverym4n@enotuniq.net> - 2021-09-18 14:40 +0200
        Re: How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card  to a 16Gb Class 10 A1 MicroSD card? The Wanderer <wanderer@fastmail.fm> - 2021-09-18 14:50 +0200
          Re: How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card  to a 16Gb Class 10 A1 MicroSD card? Reco <recoverym4n@enotuniq.net> - 2021-09-18 15:00 +0200
      Re: How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card  to a 16Gb Class 10 A1 MicroSD card? Myron <myron@co-hop.uk> - 2021-09-27 14:50 +0200
    Re: How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card  to a 16Gb Class 10 A1 MicroSD card? Myron <myron@co-hop.uk> - 2021-09-27 14:40 +0200
      Re: How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card  to a 16Gb Class 10 A1 MicroSD card? Reco <recoverym4n@enotuniq.net> - 2021-09-27 16:40 +0200
        Re: How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card  to a 16Gb Class 10 A1 MicroSD card? Myron <myron@co-hop.uk> - 2021-09-30 17:40 +0200
          Re: How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card  to a 16Gb Class 10 A1 MicroSD card? Reco <recoverym4n@enotuniq.net> - 2021-09-30 21:10 +0200
            Re: How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card  to a 16Gb Class 10 A1 MicroSD card? "Andrew M.A. Cater" <amacater@einval.com> - 2021-09-30 21:50 +0200
            Re: How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card  to a 16Gb Class 10 A1 MicroSD card? Andrei POPESCU <andreimpopescu@gmail.com> - 2021-10-01 08:30 +0200
              Re: How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card  to a 16Gb Class 10 A1 MicroSD card? Andrei POPESCU <andreimpopescu@gmail.com> - 2021-10-02 14:10 +0200
          Re: How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card  to a 16Gb Class 10 A1 MicroSD card? Andrei POPESCU <andreimpopescu@gmail.com> - 2021-10-02 08:20 +0200
  Re: How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card  to a 16Gb Class 10 A1 MicroSD card? "Andrew M.A. Cater" <amacater@einval.com> - 2021-09-18 15:40 +0200
  Re: How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card  to a 16Gb Class 10 A1 MicroSD card? David Christensen <dpchrist@holgerdanske.com> - 2021-09-18 21:30 +0200
    Re: How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card  to a 16Gb Class 10 A1 MicroSD card? Myron <myron@co-hop.uk> - 2021-09-27 15:00 +0200
    Re: How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card  to a 16Gb Class 10 A1 MicroSD card? Myron <myron@co-hop.uk> - 2021-09-27 21:30 +0200
  Re: How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card  to a 16Gb Class 10 A1 MicroSD card? Andrei POPESCU <andreimpopescu@gmail.com> - 2021-09-19 07:00 +0200
    Re: How do I clone a Debian Distro from a 32Gb Class 10 MicroSD card  to a 16Gb Class 10 A1 MicroSD card? Myron <myron@co-hop.uk> - 2021-09-27 15:00 +0200

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