Why is my rootfs smaller than the lvm partition?

asked 2013-07-11 03:34:04 -0500

cefn gravatar image

I completed a simple automated install of Fedora onto a 8GB disk, clicking OK for all automation steps, and it's provided me with a 4.6 GB Root filesystem and a load of wasted space!

Launching parted magic reveals a partitioning scheme of two partitions - roughly 500MB swap and 7500MB LVM.

Of course trying to do almost anything with this build then hits errors from being out of space.

Why does Fedora LiveCD choose this arbitrary and mistaken install configuration by default (a real problem for the typical user who would find it hard to investigate partitions)?

What can be done to change it in an installed system (apart from reinstalling again and diving into the partitioner) ? I've not worked with LVM before, but I guess this means it has a smaller share of the partition within a virtual disk allocated to a specific system. Gparted reports it doesn't have LVM support so I need to work with another tool to fix it.

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To answer your first question, is there a /home volume?

randomuser gravatar imagerandomuser ( 2013-07-12 00:49:38 -0500 )edit

I gave up on the build altogether, and scaled up the disk to 16GB in the end. I couldn't identify anything other than the 4.6GB rootfs mount, but it may well be I wasn't using the right tools to inspect the situation as I'm more familiar with conventional partitioning. Having re-run the build and intervened in partitioning (through the installer GUI) I noticed a >3GB swap volume seemed to be allocated by the automated process, though (the virtual machine has 1.5Gb memory, so it's probably based on 2xRAM arithmetic).

cefn gravatar imagecefn ( 2013-07-12 05:28:48 -0500 )edit