Installation runs into "Failed to get release information" (fresh Hetzner Ubuntu 22.04 Server)

kk_cloudron

Hi everyone,

I started a fresh Ubuntu 22.04 VPS at Hetzner Cloud:

Welcome to Ubuntu 22.04 LTS (GNU/Linux 5.15.0-41-generic x86_64)

 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/advantage

  System information as of Fri Jul 15 03:59:53 PM UTC 2022

  System load:  0.0               Processes:             146
  Usage of /:   5.6% of 37.23GB   Users logged in:       0
  Memory usage: 9%               
  Swap usage:   0%               


0 updates can be applied immediately.

but when I try to install Cloudron the setup runs into an error while checking for release informations:

##############################################
         Cloudron Setup (latest)
##############################################

 Follow setup logs in a second terminal with:
 $ tail -f /var/log/cloudron-setup.log

 Join us at https://forum.cloudron.io for any questions.

=> Updating apt and installing script dependencies
=> Checking version
Failed to get release information

I have already checked various hints from other posts, but none led to the solution. Do you maybe have any ideas?

I hope anyone can help.

Kai

girish

@kk_cloudron Can you please try this on the server?

curl "https://api.cloudron.io/api/v1/releases?boxVersion="

kk_cloudron

@girish This runs into

# curl "https://api.cloudron.io/api/v1/releases?boxVersion="
curl: (7) Couldn't connect to server

There is no error output with other targets.

subven

@kk_cloudron take a look if the Firewall at Hetzner Robot is turned on. If so, turn it off ^^

kk_cloudron

@subven Hehe, nice try

My steps after reading your post:

Firewall was opened at 80 and 443. - not working
Disabled Hetzner firewall - still not working
Checking iptables:

# iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

Checking ufw:

# ufw status
Status: inactive

Checking other curl targets:

# curl "google.de"
<HTML><HEAD><meta http-equiv="content-type" content="text/html;charset=utf-8">
<TITLE>301 Moved</TITLE></HEAD><BODY>
<H1>301 Moved</H1>
The document has moved
<A HREF="http://www.google.de/">here</A>.
</BODY></HTML>

Ping api.cloudron.io:

# ping -v api.cloudron.io
ping: connect: Network is unreachable

Ping just cloudron.io:

# ping -v cloudron.io
PING cloudron.io(2600:1f18:80f:e00:fa5d:db49:3bf:3f22 (2600:1f18:80f:e00:fa5d:db49:3bf:3f22)) 56 data bytes
64 bytes from 2600:1f18:80f:e00:fa5d:db49:3bf:3f22 (2600:1f18:80f:e00:fa5d:db49:3bf:3f22): icmp_seq=1 ttl=43 time=89.6 ms

Open api.cloudron.io in browser:

Cannot GET /

Do you get a positive result when ping or curl api.cloudron.io?

subven

Do u use IPv6? If so can you try to disable the IPv6 interface and just use IPv4? Hetzner has IPv6 only plans for their Cloud VPS but it should not fail due to ipv6. Since you have Firewall, Network or DNS issues there is no harm in trying.

Your output for ping -v api.cloudron.io is odd...you should at least be able to resolve to 3.209.21.239.

@kk_cloudron

Do you get a positive result when ping or curl api.cloudron.io?

root@my:~# ping -v api.cloudron.io
PING api.cloudron.io (3.209.21.239) 56(84) bytes of data.

girish

@kk_cloudron said in Installation runs into "Failed to get release information" (fresh Hetzner Ubuntu 22.04 Server):

Do you get a positive result when ping or curl api.cloudron.io?

The ping is not supposed to work. The curl should just return a 404 since there is nothing at the root path.

$ curl https://api.cloudron.io
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Error</title>
</head>
<body>
<pre>Cannot GET /</pre>
</body>
</html>

kk_cloudron

@subven I only use IPv6. So turning it off will be difficult

@girish All right. Thank you for the info. is there another way to pinpoint the cause of the problem?

I read somewhere that there may be problems with the images offered by Hetzner. Is it still relevant? Should I try installing a different image or is there a list of the required packages so I can compare?

kk_cloudron

"solved" - but I don't know for sure the exact reason that caused this. I set up a new server with both: IPv4 and IPv6.
So best explanation/guess: the installation only works if there is also an IPv4

girish

@kk_cloudron that is correct, Cloudron requires IPv4 and does not work on IPv6 only servers (yet).

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Installation runs into "Failed to get release information" (fresh Hetzner Ubuntu 22.04 Server)