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Keeping disk usage low for new install
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Rukiri
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Joined: 28 Oct 2011
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PostPosted: Sat May 18, 2013 6:45 am    Post subject: Keeping disk usage low for new install Reply with quote

I use btrfs as my main filesystem, I just found zfs buggy on Linux but is a superior fs (at this time) than btrfs on it's native platform.

I've tried many source distros (even LFS) and the initial install leaves me around 2-3GB of disk usage which is fine, but I don't like my file system reserving 20% of disk space for the root user, keep in mind I'm using SSDs and when the fs are created and mounted it leaves 35GB to metadata which is outrageous!

BTRFS has gotten better at reducing metadata usage, crux for example uses the commits from 3-2013, gentoo has the latest in it's repos but for initial creation it's pretty outdated... 0.21-r1 is the latest release but since btrfs is constantly being worked on this is one package I'd rather have up to date all the time.

I have tried btrfs in a weird combo where I have it up as a pool (mkfs.btrfs -m single -d single /dev/sda3 /dev/sdb2) and that will come up as 1.1TB, now df -h will show 1.1TB but when you mount with your boot partition and before the stage3 download it leaves you at 1TB and 29GB, where did the other 71GB go? I specified metadata and data to be single so it should have just used 1GB, 71GB is a lot and it's up to 500GB once I have my 12 SSDs setup (512GB btw)


I'm building a new PC well just a new mobo and cpu, I don't know if I'm going to get another gfx card, the PSU is being swapped (I can't stand the twist/circular connections especially when the cables are thick braided...) And I'm wondering if there is any scripts or tutorials out there for creating a custom minimal iso?
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BradN
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PostPosted: Sun May 19, 2013 11:56 pm    Post subject: Reply with quote

Can you replicate this issue without using -h switch on df? "1.1" is not a good number to look at.
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Rukiri
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PostPosted: Sat May 25, 2013 4:23 am    Post subject: Reply with quote

It's the same with df, even funtoo uses less disk space once booted for the first time.
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ryao
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Joined: 27 Feb 2012
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PostPosted: Tue Jun 04, 2013 2:54 pm    Post subject: Re: Keeping disk usage low for new install Reply with quote

Rukiri wrote:
I just found zfs buggy on Linux


Please file a bug report. :)
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