Error 0 occurred while receiving the document
root@vh1:/var/tmp# wget http://mirror.compevo.com/proxmox/proxmox-ve_5.2-1.iso
--2018-08-30 16:27:37-- http://mirror.compevo.com/proxmox/proxmox-ve_5.2-1.iso
Resolving mirror.compevo.com (mirror.compevo.com)... 103.25.61.44
Connecting to mirror.compevo.com (mirror.compevo.com)|103.25.61.44|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 641517568 (612M) [application/octet-stream]
Saving to: ‘proxmox-ve_5.2-1.iso’
proxmox-ve_5.2-1.iso 80%[==================================> ] 493.39M 2.38MB/s in 45s
2018-08-30 16:28:22 (10.9 MB/s) - Connection closed at byte 517359784. Retrying.
--2018-08-30 16:28:23-- (try: 2) http://mirror.compevo.com/proxmox/proxmox-ve_5.2-1.iso
Connecting to mirror.compevo.com (mirror.compevo.com)|103.25.61.44|:80... connected.
HTTP request sent, awaiting response... 206 Partial Content
Length: 641517568 (612M), 124157784 (118M) remaining [application/octet-stream]
Saving to: ‘proxmox-ve_5.2-1.iso’
var/tmp is out of space the same as tmpfs
#this normally happens when Proxmox first uploads it to a place in /tmp on your / filesystem and if you have used a small HDD for testing it's easy for a simple ISO upload to fail for this reason. You'll have to wget directly to the main filesystem or datastore with more space.