# /lib/x86\_64-linux-gnu/libm.so.6: version \`GLIBC\_2.29' not found (required by hugo)

**URL:** <https://answers.netlify.com/t/lib-x86-64-linux-gnu-libm-so-6-version-glibc-2-29-not-found-required-by-hugo/43557>\
**Category:** Support\
**Tags:** building, hugo\
**Created:** [September 3, 2021, 5:53am UTC](https://answers.netlify.com/t/lib-x86-64-linux-gnu-libm-so-6-version-glibc-2-29-not-found-required-by-hugo/43557 "2021-09-03T05:53:42Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![funkydan2](https://sea1.discourse-cdn.com/netlify/user_avatar/answers.netlify.com/funkydan2/32/369_2.png) [@funkydan2](https://answers.netlify.com/u/funkydan2)\
**Post date:** [September 3, 2021, 5:53am UTC](https://answers.netlify.com/t/lib-x86-64-linux-gnu-libm-so-6-version-glibc-2-29-not-found-required-by-hugo/43557/1 "2021-09-03T05:53:42Z")

</div>

Building my site is failing at the moment. I think it’s to do with upgrading Hugo to 0.88.0 and Go to 1.17.

Full log below

```auto
3:49:48 PM: Build ready to start
3:49:50 PM: build-image version: c6001ed68662a13e5deb24abec2b46058c58248a
3:49:50 PM: build-image tag: v3.9.0
3:49:50 PM: buildbot version: 1ed4041128c7c024b4c4b72e2ad30a0740c570a7
3:49:50 PM: Fetching cached dependencies
3:49:50 PM: Starting to download cache of 290.0MB
3:49:53 PM: Finished downloading cache in 3.099460651s
3:49:53 PM: Starting to extract cache
3:50:02 PM: Finished extracting cache in 8.203761633s
3:50:02 PM: Finished fetching cache in 11.360845359s
3:50:02 PM: Starting to prepare the repo for build
3:50:06 PM: Preparing Git Reference refs/heads/master
3:50:09 PM: Parsing package.json dependencies
3:50:10 PM: Different build command detected, going to use the one specified in the Netlify configuration file: 'hugo --gc --minify' versus 'hugo' in the Netlify UI
3:50:10 PM: Starting build script
3:50:10 PM: Installing dependencies
3:50:10 PM: Python version set to 2.7
3:50:10 PM: Started restoring cached node version
3:50:13 PM: Finished restoring cached node version
3:50:45 PM: v8.17.0 is already installed.
3:50:46 PM: Now using node v8.17.0 (npm v6.13.4)
3:50:46 PM: Started restoring cached build plugins
3:50:46 PM: Finished restoring cached build plugins
3:50:46 PM: Attempting ruby version 2.3.6, read from environment
3:50:47 PM: Started restoring cached ruby version
3:50:47 PM: Finished restoring cached ruby version
3:50:49 PM: Using ruby version 2.3.6
3:50:50 PM: Successfully installed bundler-2.2.26
3:50:50 PM: 1 gem installed
3:50:50 PM: Using PHP version 5.6
3:50:50 PM: Installing Hugo 0.88.0
3:50:51 PM: hugo: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.29' not found (required by hugo)hugo: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.26' not found (required by hugo)Started restoring cached go cache
3:50:52 PM: Finished restoring cached go cache
3:50:52 PM: Installing Go version 1.17
3:51:08 PM: unset GOOS;
3:51:08 PM: unset GOARCH;
3:51:08 PM: export GOROOT='/opt/buildhome/.gimme_cache/versions/go1.17.linux.amd64';
3:51:08 PM: export PATH="/opt/buildhome/.gimme_cache/versions/go1.17.linux.amd64/bin:${PATH}";
3:51:08 PM: go version >&2;
3:51:08 PM: export GIMME_ENV="/opt/buildhome/.gimme_cache/env/go1.17.linux.amd64.env"
3:51:08 PM: go version go1.17 linux/amd64
3:51:08 PM: Installing missing commands
3:51:08 PM: Verify run directory
3:51:09 PM: ​
3:51:09 PM: ────────────────────────────────────────────────────────────────
3:51:09 PM: Netlify Build                                                 
3:51:09 PM: ────────────────────────────────────────────────────────────────
3:51:09 PM: ​
3:51:09 PM: ❯ Version
3:51:09 PM: @netlify/build 18.7.3
3:51:09 PM: ​
3:51:09 PM: ❯ Flags
3:51:09 PM: baseRelDir: false
3:51:09 PM: buildId: 6131b77cc5c34a00087f7f33
3:51:09 PM: deployId: 6131b77cc5c34a00087f7f35
3:51:09 PM: ​
3:51:09 PM: ❯ Current directory
3:51:09 PM: /opt/build/repo
3:51:09 PM: ​
3:51:09 PM: ❯ Config file
3:51:09 PM: /opt/build/repo/netlify.toml
3:51:09 PM: ​
3:51:09 PM: ❯ Context
3:51:09 PM: production
3:51:09 PM: ​
3:51:09 PM: ────────────────────────────────────────────────────────────────
3:51:09 PM: 1. build.command from netlify.toml                            
3:51:09 PM: ────────────────────────────────────────────────────────────────
3:51:09 PM: ​
3:51:09 PM: $ hugo --gc --minify
3:51:09 PM: hugo: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.29' not found (required by hugo)hugo: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.26' not found (required by hugo)​
3:51:09 PM: ────────────────────────────────────────────────────────────────
3:51:09 PM: "build.command" failed                                        
3:51:09 PM: ────────────────────────────────────────────────────────────────
3:51:09 PM: ​
3:51:09 PM: Error message
3:51:09 PM: Command failed with exit code 1: hugo --gc --minify
3:51:09 PM: ​
3:51:09 PM: Error location
3:51:09 PM: In build.command from netlify.toml:
3:51:09 PM: hugo --gc --minify
3:51:09 PM: ​
3:51:09 PM: Resolved config
3:51:09 PM: build:
3:51:09 PM: command: hugo --gc --minify
3:51:09 PM: commandOrigin: config
3:51:09 PM: environment:
3:51:09 PM: - HUGO_VERSION
3:51:09 PM: - HUGO_ENV
3:51:09 PM: - HUGO_ENABLEGITINFO
3:51:09 PM: publish: /opt/build/repo/public
3:51:09 PM: publishOrigin: config
3:51:10 PM: Caching artifacts
3:51:10 PM: Started saving build plugins
3:51:10 PM: Finished saving build plugins
3:51:10 PM: Started saving pip cache
3:51:10 PM: Finished saving pip cache
3:51:10 PM: Started saving emacs cask dependencies
3:51:10 PM: Finished saving emacs cask dependencies
3:51:10 PM: Started saving maven dependencies
3:51:10 PM: Finished saving maven dependencies
3:51:10 PM: Started saving boot dependencies
3:51:10 PM: Finished saving boot dependencies
3:51:10 PM: Started saving rust rustup cache
3:51:10 PM: Finished saving rust rustup cache
3:51:10 PM: Started saving go dependencies
3:51:13 PM: Finished saving go dependencies
3:51:13 PM: Build failed due to a user error: Build script returned non-zero exit code: 2
3:51:13 PM: Creating deploy upload records
3:51:13 PM: Failing build: Failed to build site
3:51:13 PM: Failed during stage 'building site': Build script returned non-zero exit code: 2
3:51:13 PM: Finished processing build request in 1m23.207151752s

```

---

<div class="post-metadata">

**Author:** ![coelmay](https://sea1.discourse-cdn.com/netlify/user_avatar/answers.netlify.com/coelmay/32/24427_2.png) [@coelmay](https://answers.netlify.com/u/coelmay)\
**Post date:** [September 3, 2021, 5:57am UTC](https://answers.netlify.com/t/lib-x86-64-linux-gnu-libm-so-6-version-glibc-2-29-not-found-required-by-hugo/43557/2 "2021-09-03T05:57:26Z")

</div>

Hi @funkydan2

Appears you are using Xenial build image. Could you try updating to the Focal build image and see if that works. **Site settings \> Build & deploy \> Continuous Deployment \> Build image selection**

---

<div class="post-metadata">

**Author:** ![funkydan2](https://sea1.discourse-cdn.com/netlify/user_avatar/answers.netlify.com/funkydan2/32/369_2.png) [@funkydan2](https://answers.netlify.com/u/funkydan2)\
**Post date:** [September 3, 2021, 6:14am UTC](https://answers.netlify.com/t/lib-x86-64-linux-gnu-libm-so-6-version-glibc-2-29-not-found-required-by-hugo/43557/3 "2021-09-03T06:14:20Z")

</div>

Yes, I wondered whether there was an updated image. However, that’s failing in a different way:

```auto
4:13:31 PM: Build ready to start
4:13:33 PM: build-image version: fa439ad1ab9393b2c0d449d8d7c033927683f4b0
4:13:33 PM: build-image tag: v4.3.0
4:13:33 PM: buildbot version: 1ed4041128c7c024b4c4b72e2ad30a0740c570a7
4:13:33 PM: Fetching cached dependencies
4:13:33 PM: Failed to fetch cache, continuing with build
4:13:33 PM: Starting to prepare the repo for build
4:13:34 PM: No cached dependencies found. Cloning fresh repo
4:13:34 PM: git clone git@bitbucket.org:funkydan2/pastor-tech-site
4:13:35 PM: Preparing Git Reference refs/heads/master
4:13:36 PM: Parsing package.json dependencies
4:13:36 PM: Different build command detected, going to use the one specified in the Netlify configuration file: 'hugo --gc --minify' versus 'hugo' in the Netlify UI
4:13:36 PM: Starting build script
4:13:36 PM: Installing dependencies
4:13:36 PM: Python version set to 2.7
4:13:37 PM: Downloading and installing node v8.17.0...
4:13:37 PM: Downloading https://nodejs.org/dist/v8.17.0/node-v8.17.0-linux-x64.tar.xz...
4:13:37 PM: Computing checksum with sha256sum
4:13:37 PM: Checksums matched!
4:13:39 PM: Now using node v8.17.0 (npm v6.13.4)
4:13:39 PM: Started restoring cached build plugins
4:13:39 PM: Finished restoring cached build plugins
4:13:39 PM: Attempting ruby version 2.3.6, read from environment
4:13:40 PM: Required ruby-2.3.6 is not installed - installing.
4:13:41 PM: Searching for binary rubies, this might take some time.
4:13:41 PM: Found remote file https://rvm_io.global.ssl.fastly.net/binaries/ubuntu/20.04/x86_64/ruby-2.3.6.tar.bz2
4:13:41 PM: Checking requirements for ubuntu.
4:13:41 PM: Missing required packages: libssl1.0-dev
4:13:41 PM: RVM autolibs is now configured with mode '2' =>
4:13:41 PM: 'Allow RVM to use package manager if found, fail if dependencies are missing. This is default.',
4:13:41 PM: please run `rvm autolibs enable` to let RVM do its job or run and read `rvm autolibs [help]`
4:13:41 PM: or visit https://rvm.io/rvm/autolibs for more information.
4:13:41 PM: Found undesired packages: libssl-dev
4:13:41 PM: RVM autolibs is now configured with mode '2' =>
4:13:41 PM: 'Allow RVM to use package manager if found, fail if dependencies are missing. This is default.',
4:13:41 PM: please run `rvm autolibs enable` to let RVM do its job or run and read `rvm autolibs [help]`
4:13:41 PM: or visit https://rvm.io/rvm/autolibs for more information.
4:13:41 PM: Requirements installation failed with status: 1.
4:13:41 PM: ruby-2.3.6 - #gemset created /opt/buildhome/.rvm/gems/ruby-2.3.6
4:13:41 PM: Required ruby-2.3.6 is not installed - installing.
4:13:42 PM: Searching for binary rubies, this might take some time.
4:13:42 PM: Found remote file https://rvm_io.global.ssl.fastly.net/binaries/ubuntu/20.04/x86_64/ruby-2.3.6.tar.bz2
4:13:42 PM: Checking requirements for ubuntu.
4:13:42 PM: Missing required packages: libssl1.0-dev
4:13:42 PM: RVM autolibs is now configured with mode '2' =>
4:13:42 PM: 'Allow RVM to use package manager if found, fail if dependencies are missing. This is default.',
4:13:42 PM: please run `rvm autolibs enable` to let RVM do its job or run and read `rvm autolibs [help]`
4:13:42 PM: or visit https://rvm.io/rvm/autolibs for more information.
4:13:42 PM: Found undesired packages: libssl-dev
4:13:42 PM: RVM autolibs is now configured with mode '2' =>
4:13:42 PM: 'Allow RVM to use package manager if found, fail if dependencies are missing. This is default.',
4:13:42 PM: please run `rvm autolibs enable` to let RVM do its job or run and read `rvm autolibs [help]`
4:13:42 PM: or visit https://rvm.io/rvm/autolibs for more information.
4:13:42 PM: Requirements installation failed with status: 1.
4:13:43 PM: ruby-2.3.6 - #importing gemsetfile /opt/buildhome/.rvm/gemsets/default.gems evaluated to empty gem list
4:13:43 PM: ruby-2.3.6 - #generating default wrappers.................
4:13:43 PM: Error running 'run_gem_wrappers regenerate',
4:13:43 PM: please read /opt/buildhome/.rvm/log/1630649623_ruby-2.3.6/gemset.wrappers.default.log
4:13:43 PM: Using /opt/buildhome/.rvm/gems/ruby-2.3.6
4:13:43 PM: Warning! Executable 'ruby' missing, something went wrong with this ruby installation!
4:13:43 PM: Warning! Executable 'gem' missing, something went wrong with this ruby installation!
4:13:43 PM: Warning! Executable 'irb' missing, something went wrong with this ruby installation!
4:13:43 PM: Using ruby version 2.3.6
4:13:43 PM: /opt/buildhome/.rvm/scripts/override_gem: line 19: gem: command not found
4:13:43 PM: Error installing bundler
4:13:43 PM: Build was terminated: Build script returned non-zero exit code: 1
4:13:43 PM: Creating deploy upload records
4:13:43 PM: Failing build: Failed to build site
4:13:43 PM: Failed during stage 'building site': Build script returned non-zero exit code: 1
4:13:43 PM: Finished processing build request in 10.128584508s

```

---

<div class="post-metadata">

**Author:** ![funkydan2](https://sea1.discourse-cdn.com/netlify/user_avatar/answers.netlify.com/funkydan2/32/369_2.png) [@funkydan2](https://answers.netlify.com/u/funkydan2)\
**Post date:** [September 3, 2021, 6:18am UTC](https://answers.netlify.com/t/lib-x86-64-linux-gnu-libm-so-6-version-glibc-2-29-not-found-required-by-hugo/43557/4 "2021-09-03T06:18:22Z")

</div>

Fixed by re-linking my repository as per [Build fails with Focal image due to unwanted old Ruby - #4 by hillary](https://answers.netlify.com/t/build-fails-with-focal-image-due-to-unwanted-old-ruby/40682/4)

---

<div class="post-metadata">

**Author:** ![coelmay](https://sea1.discourse-cdn.com/netlify/user_avatar/answers.netlify.com/coelmay/32/24427_2.png) [@coelmay](https://answers.netlify.com/u/coelmay)\
**Post date:** [September 3, 2021, 6:19am UTC](https://answers.netlify.com/t/lib-x86-64-linux-gnu-libm-so-6-version-glibc-2-29-not-found-required-by-hugo/43557/5 "2021-09-03T06:19:45Z")

</div>

> [@funkydan2](#):
>
> `Now using node v8.17.0 (npm v6.13.4)`

Node v8? Is this set by you or your build environment? By default Focal uses Node v16.

Not a hugo expert by any stretch, but given hugo v0.88.0 was released less than a day ago, I suggest there are some compatibility issues.

---

<div class="post-metadata">

**Author:** ![funkydan2](https://sea1.discourse-cdn.com/netlify/user_avatar/answers.netlify.com/funkydan2/32/369_2.png) [@funkydan2](https://answers.netlify.com/u/funkydan2)\
**Post date:** [September 3, 2021, 7:04am UTC](https://answers.netlify.com/t/lib-x86-64-linux-gnu-libm-so-6-version-glibc-2-29-not-found-required-by-hugo/43557/6 "2021-09-03T07:04:22Z")

</div>

> [@coelmay](#):
>
> Node v8?

I think that might be to do with what I discovered in the thread linked above. Netlify _pins_ tools to the version of your first build (or they used to). This can be overridden either through environment variables or relinking repositories.

Just checked the build that worked:

```auto
4:17:30 PM: Now using node v16.8.0 (npm v7.21.0)

```