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I've just noticed that a default install of Ubuntu 18.04 with LVM results in only 4GB of space allocated for the root partition, and the rest of the 500GB drive is left un-used. I find this goes against the principle of least surprise, I expected ubuntu to use the whole drive or to ask how much to use like 16.04 did.

Why wasn't it provisioned with more space? Is this a bug? I've googled but couldn't find anything other than this: Ubuntu Server 18.04 LVM out of space with improper default partitioning

However, that's a different question, as that question seeks to resolve the behavior by expanding the disk. I'm trying to determine whether the behavior I'm seeing is expected, a regression, or a bug.

It talks about how to fix it - and I have fixed it - but I don't understand why 18.04 defaults to such a small root partition with LVM?

Edit: I'm using the ubuntu-18.04.2-live-server-amd64 ISO.

Thanks in advance!

Jeff Welling
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1 Answers1

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You mentioned using the live-server installer in the comments. LVM is not supported by the live-server installer. Here is a quote from the Ubuntu Documentation at https://help.ubuntu.com/lts/serverguide/preparing-to-install.html

Ubuntu Server 18.04 LTS introduces a new installer, the "live server" installer (sometimes called "Ubiquity for Servers" or simply "subiquity") which provides a more .user friendly and faster installation experience. At the time of writing it only supports amd64 processors and does not support LVM or RAID or other more sophisticated storage options, nor does it support reusing existing partitions on the disks of the system you are installing. It also requires access to the Ubuntu archive, possibly via a proxy. The previous, debian-installer based, installer is still available if these restrictions mean you can't use the live server installer.

You're going to want to re-format your drive and use a different .iso file, as recommended in the comments

Gordster
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