Installation stops if no blocklist is selected. v5.0

[castillo92]

In raising this issue, I confirm the following:

• I have read and understood the contributors guide.
• The issue I am reporting can be replicated.
• The issue I am reporting isn't a duplicate (see FAQs, closed issues, and open issues).

How familiar are you with the the source code relevant to this issue?:

1

---

Expected behaviour:
Doing a fresh install of PiHole 5.0, if we do not select any list in the initial setup, installation should continue, because we will add our custom list later.

Actual behaviour:

If we do not select any blocklist in the initial setup step, installation fails because /etc/pihole/adlists.list do not exist

Install log:

user-01@srv-01:~$ curl -sSL https://install.pi-hole.net | sudo bash
[sudo] password for user-01: 

  [✓] Root user check

        .;;,.
        .ccccc:,.
         :cccclll:.      ..,,
          :ccccclll.   ;ooodc
           'ccll:;ll .oooodc
             .;cll.;;looo:.
                 .. ','.
                .',,,,,,'.
              .',,,,,,,,,,.
            .',,,,,,,,,,,,....
          ....''',,,,,,,'.......
        .........  ....  .........
        ..........      ..........
        ..........      ..........
        .........  ....  .........
          ........,,,,,,,'......
            ....',,,,,,,,,,,,.
               .',,,,,,,,,'.
                .',,,,,,'.
                  ..'''.

  [i] Existing PHP installation detected : PHP version 7.4.5
  [✓] Disk space check
  [✓] Update local cache of available packages

  [✓] Checking apt-get for upgraded packages... 69 updates available
  [i] It is recommended to update your OS after installing the Pi-hole!

  [i] Installer Dependency checks...
  [✓] Checking for dhcpcd5
  [✓] Checking for git
  [✓] Checking for iproute2
  [✓] Checking for whiptail

  [i] SELinux not detected
  [i] Using upstream DNS: Cloudflare (1.1.1.1, 1.0.0.1)
chmod: cannot access '/etc/pihole/adlists.list': No such file or directory error when the file exists

Steps to reproduce:
Simply make a fresh install and leave initial blocklists unselected.

Troubleshooting undertaken, and/or other relevant information:
By selecting at least one list, the installation continues normally.

[pralor-bot]

This issue has been mentioned on Pi-hole Userspace. There might be relevant details there:

https://discourse.pi-hole.net/t/pi-hole-5-1-released/35577/1

[pralor-bot]

This issue has been mentioned on Pi-hole Userspace. There might be relevant details there:

https://discourse.pi-hole.net/t/pi-hole-core-web-v5-2-and-ftl-v5-3-released/40909/1