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Does not possible to update the system with 512MB of RAM
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Description

On update system from 1.3 to 1.4 you will be something like curl: (23) Failed writing body (3218 != 16366) if it has only 512 MB RAM

[email protected]:~$ add system image  https://downloads.vyos.io/rolling/current/amd64/vyos-rolling-latest.iso
Trying to fetch ISO file from https://downloads.vyos.io/rolling/current/amd64/vyos-rolling-latest.iso
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
 55  436M   55  242M    0     0  23.5M      0  0:00:18  0:00:10  0:00:08 26.9M
curl: (23) Failed writing body (3218 != 16366)
Unable to fetch ISO from https://downloads.vyos.io/rolling/current/amd64/vyos-rolling-latest.iso

Quick workaround how to update:

  1. Download with curl manually
curl -O https://link-to-image/image-name.iso
  1. Run update procedure from local file
add system image image-name.iso

Details

Difficulty level
Normal (likely a few hours)
Version
1.3-beta-202111290443
Why the issue appeared?
Will be filled on close
Is it a breaking change?
Perfectly compatible
Issue type
Bug (incorrect behavior)

Event Timeline

Same problem when downgrading from 1.3.0 to 1.2.8