Unable to correct missing packages

[Andrimont]

Hello I need to install testdisk
but I get Unable to correct missing packages
What should be done to get the package ?
Thanks for any help !

apt-get install testdisk
Reading package lists... Done
Building dependency tree      
Reading state information... Done
The following additional packages will be installed:
  libntfs-3g883 ntfs-3g
The following NEW packages will be installed:
  libntfs-3g883 ntfs-3g testdisk
0 upgraded, 3 newly installed, 0 to remove and 86 not upgraded.
Need to get 167 kB/962 kB of archives.
After this operation, 3,259 kB of additional disk space will be used.
Do you want to continue? [Y/n]
Ign:1 http://mirrors.online.net/debian buster/main amd64 libntfs-3g883 amd64 1:2017.3.23AR.3-3
Err:1 http://ftp.debian.org/debian buster/main amd64 libntfs-3g883 amd64 1:2017.3.23AR.3-3
  404  Not Found [IP: 62.210.19.130 80]
E: Failed to fetch http://ftp.debian.org/debian/pool/main/n/ntfs-3g/libntfs-3g883_2017.3.23AR.3-3_amd64.deb  404  Not Found [IP: 62.210.19.130 80]

 

[UdoB]

You updated the package list known by your system with apt update, did you?

Best regards

 

[Andrimont]

Yes @UdoB, I did made all the update and upgrade. The core is new : 5.4.143-1-pve

If I use one of the VM, then testdisk can be installed. But then it doesn't access to the main disk, only the VM itself. I wonder if there is some protection for the Proxmox to avoid installing apps.

 

[Andrimont]

I sort it out. That was simple : I added in nano /etc/apt/sources.list.d/*
these links :

deb http://deb.debian.org/debian/ buster main
deb-src http://deb.debian.org/debian/ buster main

deb http://security.debian.org/debian-security buster/updates main
deb-src http://security.debian.org/debian-security buster/updates main

# buster-updates, previously known as 'volatile'
deb http://deb.debian.org/debian/ buster-updates main
deb-src http://deb.debian.org/debian/ buster-updates main
deb http://ftp.fr.debian.org/debian buster main non-free

Then I could install testdisk
Thanks UdoB for your kind concern.
Best regards.

 

[UdoB]

Then I could install testdisk

Great!
I would have expected a different kind of error message for missing dependencies than just 404.

Best regards