基本步驟：
參看 https://btrfs.wiki.kernel.org/index.php/Btrfs_source_repositories
說明：
修改1：
==========
Fedora
yum install libuuid-devel libattr-devel zlib-devel libacl-devel e2fsprogs-devel libblkid-devel lzo2-devel
============
在CentOS中修正爲
yum install uuid-dev libattr1-dev zlib1g-dev libacl1-dev e2fslibs-dev libblkid-dev liblzo2-dev
修改2：
下文中，
git clone git://repo.or.cz/btrfs-progs-unstable/devel.git cd devel git checkout integration-YYYYMMDD
修改爲
git clone git://repo.or.cz/btrfs-progs-unstable/devel.git cd devel git checkout integration-20131125
=======================================================
要注意，YYYYMMDD 集成日期在2013年12月12日查詢到的集成日期是20131125，如集成失敗，則要到官網上重新查詢。
查詢地址：http://repo.or.cz/w/btrfs-progs-unstable/devel.git
Official repository
The userspace utilities can be downloaded from this repository (Gitweb access):
$ git clone git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-progs.git $ cd btrfs-progs
Integration repository
David Sterba maintains an "integration" branch of patches for the userspace tools (Gitweb access). This is at:
git://repo.or.cz/btrfs-progs-unstable/devel.git integration-YYYYMMDD
where YYYMMDD is the date of the branch.
To check out this repository, and select the latest branch, use:
git clone git://repo.or.cz/btrfs-progs-unstable/devel.git cd devel git checkout integration-YYYYMMDD
btrfs kernel module git repository
Until October 2012, the latest features and bug fixes hit this repo before going upstream to Linus' kernel tree. Currently it is not up to date. The Linux RCs are more up to date and btrfs-next (see below) is most up to date.
btrfs repository (the command downloads a complete Linux kernel tree, if you have a local instance already, add it as a git remote) (Gitweb access)
git clone git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs.git
Integration repository (btrfs-next)
Josef Bacik maintains an "integration" branch of all the kernel patches seen on the mailing list.
git clone git://git.kernel.org/pub/scm/linux/kernel/git/josef/btrfs-next.git
This is the code you want to test if you think you've found a bug or want to test the latest features.
"Hello,
In an effort to be a little bit better about reviewing patches sent to themailinglist I've created a btrfs-next git tree kernel.org. You can get it here
git://git.kernel.org/pub/scm/linux/kernel/git/josef/btrfs-next.git
I'm going to be scraping the mailinglist every day for patches that are sent andapplying them to this tree in order to get some better testing throughout thedevelopment cycle and possibly stop being such a lazy bum about reviewing. Ifyou are looking to get patches into the next merge window and you notice Ihaven't included them in this tree please let me know so I can pull them in, Idid a very casual look through the list to find stuff so I probably missedsomething. Thanks much,
Josef"
Patches sent to mailinglist
A convenient interface to get an overview of patches and the related mail discussions can be found at https://patchwork.kernel.org/project/linux-btrfs/list/ .
It is possible to directly apply a patch by pasting the mbox link from the patch page to the command
$ wget -O - 'https://patchwork.kernel.org/patch/123456/mbox' | git am -
you may want to add --reject, or decide otherwise what to do with the patch.
Build
Dependencies
Before compiling the userspace tools you'll need to get some dependencies:
Fedora
yum install libuuid-devel libattr-devel zlib-devel libacl-devel e2fsprogs-devel libblkid-devel lzo2-devel
Note that some Fedora/Red Hat derived distributions use lzo-devel instead of lzo2-devel.
Debian/Ubuntu
sudo apt-get build-dep btrfs-tools -or- sudo apt-get install uuid-dev libattr1-dev zlib1g-dev libacl1-dev e2fslibs-dev libblkid-dev liblzo2-dev
If you tried the first and get "cannot find llzo2", try the second; your distro has an even older version of btrfs-progs packaged than expected.
Arch Linux
pacman -S e2fsprogs
openSUSE
zypper in libattr-devel zlib-devel libacl-devel libext2fs-devel libuuid-devel libblkid-devel lzo-devel
Build
Once you have everything in place, you can run
make
to build the user-space tools. After that they can be used like this:
./btrfsck --repair /dev/<devicename>