---
title: "Zsync | Update to Upgrade Ubuntu"
description: "From alpha,beta or RC now you can update the .iso image to upgrade the OS, instead of downloading the entire iso image Very."
url: "https://h3manth.com/scribe/zsync-update-upgrade-ubuntu/"
canonical_url: "https://h3manth.com/scribe/zsync-update-upgrade-ubuntu/"
markdown_url: "https://h3manth.com/scribe/blog/zsync-update-upgrade-ubuntu.md"
publishDate: "2009-10-30T00:00:00.000Z"
author: "Hemanth HM"
category: "linux"
tags: ["ubuntu","bash"]
word_count: 86
reading_time_minutes: 1
x_markdown_tokens: 237
content_signal: "ai-train=yes, search=yes, ai-input=yes"
---

# Zsync | Update to Upgrade Ubuntu

> From alpha,beta or RC now you can update the .iso image to upgrade the OS, instead of downloading the entire iso image Very.

**From alpha,beta or RC now you can update the *.iso image to upgrade the OS, instead of downloading the entire iso image** _Very useful for people with low bandwidth_ **Feels very much similar to`wget -c`** **zsync is the name, upgrade is the game.** Here is how to do that : ` **sudo aptitude install zsync mv ubuntu-9.10-rc-desktop-i386.iso ubuntu-9.10-desktop-i386.iso zync **`

Select the URL from the **file attached**
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