# replace module help

**URL:** <https://forum.ansible.com/t/replace-module-help/17930>\
**Category:** Ansible Project\
**Created:** [April 8, 2015, 2:46pm UTC](https://forum.ansible.com/t/replace-module-help/17930 "2015-04-08T14:46:55Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Roy](https://avatars.discourse-cdn.com/v4/letter/r/4da419/32.png) [@Roy](https://forum.ansible.com/u/Roy)\
**Post date:** [April 8, 2015, 2:46pm UTC](https://forum.ansible.com/t/replace-module-help/17930/1 "2015-04-08T14:46:55Z")

</div>

Hi I am new to Ansible and writing my first playbook

I want to update /etc/fstab

UUID=f2550ab4-36cb-4ff0-8afa-9e7839f7ce9f / ext4 defaults 1 1  
UUID=988c830a-6d78-49f9-9db3-e8617f6dd8d0 /boot ext4 defaults 1 2  
UUID=4a60645a-9009-483a-9d3e-572a9fe355b8 /data1 ext4 defaults 1 2  
UUID=2e7eef98-defb-4c6a-8262-799be5ddc9dd /data2 ext4 defaults 1 2  
UUID=e19069ba-0ecf-4e54-8316-8ef2cc9e6758 /data3 ext4 defaults 1 2  
UUID=cc0fc3dd-c2f7-4d5f-9a7f-066685cc1d79 /data4 ext4 defaults 1 2  
UUID=7b3871c8-1e46-4e3d-94fb-946c2a559c54 /data5 ext4 defaults 1 2  
UUID=d5024ed8-34f3-470a-98a6-17d909c8ef84 /data6 ext4 defaults 1 2  
UUID=8419d6e7-cc79-4692-954a-37ba50664f3b /srv ext4 defaults 1 2  
UUID=9f80f114-1e6a-4ba3-aeb7-b72073600a97 /var ext4 defaults 1 2

with

UUID=f2550ab4-36cb-4ff0-8afa-9e7839f7ce9f / ext4 defaults,noatime 1 1  
UUID=988c830a-6d78-49f9-9db3-e8617f6dd8d0 /boot ext4 defaults,noatime 1 2  
UUID=4a60645a-9009-483a-9d3e-572a9fe355b8 /data1 ext4 defaults,noatime 1 2  
UUID=2e7eef98-defb-4c6a-8262-799be5ddc9dd /data2 ext4 defaults,noatime 1 2  
UUID=e19069ba-0ecf-4e54-8316-8ef2cc9e6758 /data3 ext4 defaults,noatime 1 2  
UUID=cc0fc3dd-c2f7-4d5f-9a7f-066685cc1d79 /data4 ext4 defaults,noatime 1 2  
UUID=7b3871c8-1e46-4e3d-94fb-946c2a559c54 /data5 ext4 defaults,noatime 1 2  
UUID=d5024ed8-34f3-470a-98a6-17d909c8ef84 /data6 ext4 defaults,noatime 1 2  
UUID=8419d6e7-cc79-4692-954a-37ba50664f3b /srv ext4 defaults,noatime 1 2  
UUID=9f80f114-1e6a-4ba3-aeb7-b72073600a97 /var ext4 defaults,noatime 1 2

I was following [http://docs.ansible.com/replace\_module.html](http://docs.ansible.com/replace_module.html)

so I tried

tasks:

- name: this is my task  
#lineinfile: dest=/etc/fstab regexp=defaults line=“defaults,noatime” state=present backup=yes  
replace: dest=/etc/fstab regexp=‘(\s+)defaults 1 2(\s+.\*)?$’ replace=‘\1defaults,noatime 1 2\1’ backup=yes

which did following

UUID=b203e2c3-5207-41a8-8f18-795b5ec6550f / ext4 defaults 1 1  
UUID=d966c414-907d-4a76-86ac-ea74922769d3 /boot ext4 defaults,noatime 1 2  
UUID=92f6aef9-7701-4278-b5b3-161b595bb017 /data2 ext4 defaults,noatime 1 2  
UUID=4943436a-0cef-45b2-a0df-a0c236b90697 /data4 ext4 defaults,noatime 1 2  
UUID=db5435e6-e8f0-4646-9937-bea39e5d3470 /var ext4 defaults,noatime 1 2

what wrong am I doing here ?  
thanks

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<div class="post-metadata">

**Author:** ![Edgars](https://avatars.discourse-cdn.com/v4/letter/e/f17d59/32.png) [@Edgars](https://forum.ansible.com/u/Edgars)\
**Post date:** [April 9, 2015, 11:30am UTC](https://forum.ansible.com/t/replace-module-help/17930/2 "2015-04-09T11:30:58Z")

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You should use mount module for this [http://docs.ansible.com/mount\_module.html](http://docs.ansible.com/mount_module.html)

Edgars

trešdiena, 2015. gada 8. aprīlis 16:48:32 UTC+2, Roy rakstīja:

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<div class="post-metadata">

**Author:** ![Paul\_Totterman](https://avatars.discourse-cdn.com/v4/letter/p/3ec8ea/32.png) [@Paul\_Totterman](https://forum.ansible.com/u/Paul_Totterman)\
**Post date:** [April 12, 2015, 10:08am UTC](https://forum.ansible.com/t/replace-module-help/17930/3 "2015-04-12T10:08:20Z")

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> replace: dest=/etc/fstab regexp=‘(\s+)defaults 1 2(\s+.\*)?$’ replace=‘\1defaults,noatime 1 2\1’ backup=yes

does not match

> UUID=b203e2c3-5207-41a8-8f18-795b5ec6550f / ext4 defaults 1 1

because of ‘1 1’ vs ‘1 2’

Cheers,  
Paul