# Rancher OS security updates

**URL:** <https://forums.suse.com/t/rancher-os-security-updates/1955>\
**Category:** RancherOS\
**Created:** [March 7, 2016, 12:03am UTC](https://forums.suse.com/t/rancher-os-security-updates/1955 "2016-03-07T00:03:56Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![msimonc](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/msimonc/32/998_2.png) [@msimonc](https://forums.suse.com/u/msimonc)\
**Post date:** [March 7, 2016, 12:03am UTC](https://forums.suse.com/t/rancher-os-security-updates/1955/1 "2016-03-07T00:03:56Z")

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Newby question: coming from a weekly “ **sudo yum update** ” AWS background,

Is there a Rancher OS equivalent or is “ **sudo ros os update** ” all I need to cover me for security updates?

If so: sweet!

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<div class="post-metadata">

**Author:** ![liyi](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/liyi/32/4609_2.png) [@liyi](https://forums.suse.com/u/liyi)\
**Post date:** [March 7, 2016, 10:43am UTC](https://forums.suse.com/t/rancher-os-security-updates/1955/2 "2016-03-07T10:43:33Z")

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The answer could be a little complicated than is/no.  
RancherOS itself only provideS Linux kernel + initramfs + docker engine, everything else are run inside containers. Assume you have a container running CentOS/redhat, yes, you could run “sudo yum update” as you do today. But it only update your container, let out RancherOS (the kernel part of the system). If you did not do a system reboot after “sudo yum update” today, you have what you want with RancherOS

In theory, you could do “sudo ros os upgrade rancher/os:latest” to upgrade RancherOS to the latest at the same time. However that will involve a system reboot since the kernel is also updated.

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<div class="post-metadata">

**Author:** ![oldcai](https://avatars.discourse-cdn.com/v4/letter/o/848f3c/32.png) [@oldcai](https://forums.suse.com/u/oldcai)\
**Post date:** [August 23, 2019, 12:49pm UTC](https://forums.suse.com/t/rancher-os-security-updates/1955/3 "2019-08-23T12:49:51Z")

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Now it’s possible to upgrade

`sudo ros os upgrade`

Related commands are:

```auto
sudo ros os version
sudo ros os list

# upgrade to a specific version
sudo ros os upgrade -i rancher/os:v1.5.3

# and reboot after upgrade
sudo reboot

```