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Re: How to"apt update" from an USB key ?

On 07/11/2018 03:14 PM, Curt wrote:
On 2018-07-11, Pierre Couderc <pierre@xxxxxxxxxx> wrote:
On an ultraslim (ACER swift 3) I have no CDROM no Ethernet, only an USB key.
I have installed stretch (without GUI) from the USB key, and now I want
to install connman, but I do not success to apt-cdrom on an USB.
I have googled but did not find a correct howto to do that...
Not clear what's on the stick; I assume it's DVD1 (or CD1). (I mean if
you're trying to use apt-cdrom with the stick and the machine has no
internet connection and you installed from the stick this is my
Yes, your assumption is right. I have created the USB stick  with dd .iso ->usb.
I thank very much John, Darac y Roberto, but it is not my problem.
   Others seem to have assumed other things. As I have a very
low assumption batting average lately I hesitate slightly to join the

(copied from a post by UK Brian--I think there's only one over there)

  First adjust sources.list to only have

    deb [ trusted=yes ] file:/media/DVD-1/ stretch main

("trusted" avoids warnings about unauthenticated packages--you trust
the iso on the stick, we assume.)

  Make the DVD-1 directory:

    mkdir /media/DVD-1/

  and insert the USB stick. Obtain the device name from dmesg or lsblk.
  Then (for example)

    mount /dev/sdg1 /media/DVD-1/

apt update; apt install connman

Merci  beucoup, Curt I had seen this kind of solution, but it did not work as I had not discovered the "trusted" option.
Now, I have to understand why it says me :

Malformed line 6 in source list /etc/apt/sources.list (URI parse)

when my line 6 is :

deb [trusted=yes] file:/media/cdrom/ stretch main

And if I remove the , I get the message about file not signed...