# Cannot install RancherOS when the disk \> 2TB

**URL:** <https://forums.suse.com/t/cannot-install-rancheros-when-the-disk-2tb/5954>\
**Category:** RancherOS\
**Created:** [March 24, 2017, 7:55am UTC](https://forums.suse.com/t/cannot-install-rancheros-when-the-disk-2tb/5954 "2017-03-24T07:55:15Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![d0uub](https://avatars.discourse-cdn.com/v4/letter/d/b5ac83/32.png) [@d0uub](https://forums.suse.com/u/d0uub)\
**Post date:** [March 24, 2017, 7:55am UTC](https://forums.suse.com/t/cannot-install-rancheros-when-the-disk-2tb/5954/1 "2017-03-24T07:55:15Z")

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tried parted but seems look doesn’t work…  
tried autoformat in cloud-config.yml also not work…

any one can help? thanks!

here is the output

```auto
[root@rancher ~]# ros install -t gpt -d /dev/sda --append "rancher.password=password"
> WARN[0000] Cloud-config not provided: you might need to provide cloud-config on bootDir with ssh_authorized_keys
Installing from rancher/os:v0.9.0
Continue [y/N]: y
> INFO[0001] start !isoinstallerloaded
> INFO[0004] trying to load /bootiso/rancheros/installer.tar.gz
> INFO[0026] Loaded images from /bootiso/rancheros/installer.tar.gz
> INFO[0026] starting installer container for rancher/os-installer:latest (new)
> time="2017-03-24T08:37:46Z" level=warning msg="Cloud-config not provided: you might need to provide cloud-config on bootDir with ssh_authorized_keys"
Installing from rancher/os-installer:latest
mount: /dev/sr0 is write-protected, mounting read-only
> time="2017-03-24T08:37:47Z" level=error msg="error layDownOS unexpected install type gpt"
> time="2017-03-24T08:37:47Z" level=fatal msg="Failed to run install" err="unexpected install type gpt"
> FATA[0027] Failed to run install err="exit status 1"

```

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<div class="post-metadata">

**Author:** ![SvenDowideit](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/svendowideit/32/2159_2.png) [@SvenDowideit](https://forums.suse.com/u/SvenDowideit)\
**Post date:** [March 24, 2017, 12:21pm UTC](https://forums.suse.com/t/cannot-install-rancheros-when-the-disk-2tb/5954/2 "2017-03-24T12:21:01Z")

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yup, this is a known issue - I’ve basically not had enough time to work on  
adding large disk support.

I added gpt disk, but needed more time to get it booting iirc.

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<div class="post-metadata">

**Author:** ![d0uub](https://avatars.discourse-cdn.com/v4/letter/d/b5ac83/32.png) [@d0uub](https://forums.suse.com/u/d0uub)\
**Post date:** [March 24, 2017, 11:57pm UTC](https://forums.suse.com/t/cannot-install-rancheros-when-the-disk-2tb/5954/3 "2017-03-24T23:57:48Z")

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Thank! We love rancher!

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<div class="post-metadata">

**Author:** ![vincent](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/vincent/32/7156_2.png) [@vincent](https://forums.suse.com/u/vincent)\
**Post date:** [March 25, 2017, 12:47am UTC](https://forums.suse.com/t/cannot-install-rancheros-when-the-disk-2tb/5954/4 "2017-03-25T00:47:55Z")

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I’m assuming this is supposed to be TB, not GB?

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<div class="post-metadata">

**Author:** ![d0uub](https://avatars.discourse-cdn.com/v4/letter/d/b5ac83/32.png) [@d0uub](https://forums.suse.com/u/d0uub)\
**Post date:** [March 25, 2017, 12:59am UTC](https://forums.suse.com/t/cannot-install-rancheros-when-the-disk-2tb/5954/5 "2017-03-25T00:59:38Z")

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Yes, it is tb not gb