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    Archive for February 15th, 2016

    How to: convert your VPS root filesystem to btrfs (using rescue boot)

    15th February 2016

    I’m moving from (a kind of…) a dedicated server to a VPS, to decrease my frightful anticipation of hardware failures.
    Honestly though, that server had been freezing up and restarting spontaneously for several months now, causing sometimes really long down-times…
    That server is now about 6-7 years old, built with off-the-shelf components, some of which (the HDD :) ) had weird noises from the very start.
    Definitely time to move!

    I’ve purchased a fairly cheap VPS with an easy, one-click upgrade option for after I’m done configuring it.
    It comes with a wide selection of OSes to pre-install; I’ve chosen Debian Jessie, version 8.3 as of this writing.

    I wanted to use btrfs from the beginning, so could have installed Debian myself, but… VPS provider does some initial configuration (like their Debian mirror and some other things), so I’ve felt that converting to btrfs after the fact would be easier. Now that I’ve done this – I guess it was fairly easy, although preparation did take some time.

    Below, I’m providing step-by-step instructions on how to convert your root filesystem from (most likely) ext4 to btrfs.
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