# Installation issue (ubuntu 18.04.3 LTS)

**URL:** <https://community.brave.app/t/installation-issue-ubuntu-18-04-3-lts/100701>\
**Category:** Desktop Support\
**Tags:** linux\
**Created:** [January 4, 2020, 3:55pm UTC](https://community.brave.app/t/installation-issue-ubuntu-18-04-3-lts/100701 "2020-01-04T15:55:14Z")\
**Posts on this page:** 1\
**Showing post:** 15

<div class="post-metadata">

**Author:** ![fmarier](https://sea1.discourse-cdn.com/brave/user_avatar/community.brave.app/fmarier/32/18780_2.png) [@fmarier](https://community.brave.app/u/fmarier)\
**Post date:** [January 14, 2020, 9:38pm UTC](https://community.brave.app/t/installation-issue-ubuntu-18-04-3-lts/100701/15 "2020-01-14T21:38:44Z")

</div>

Alright, let’s first check that you’re able to download the correct key.

Try the following to download the key to a file:

```
$ curl -s https://brave-browser-apt-release.s3.brave.com/brave-core.asc > brave-core.asc

```

and then check that it has the right size:

```auto
$ ls -l brave-core.asc
-rw-r--r-- 1 francois francois 3914 Jan 14 16:33 brave-core.asc

```

and that the contents are correct too:

```auto
 $ sha256sum brave-core.asc
caf94b3b31d5b49dbbf26b8b05232057a4107b0b8a2a9f990774d4d1a6289a87 brave-core.asc

```

If you’re getting a different size or a different sha256, can you try downloading using a web browser and saving to a file. Then you can check the file size and run the `sha256sum` command again.

---

_[View the full topic](https://community.brave.app/t/installation-issue-ubuntu-18-04-3-lts/100701)._