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As mentioned on https://wiki.tnonline.net/w/Btrfs/Statically_built_btrfs-progs the static binaries could be built on with flags so they're available on most x86-64 models (intel, AMD). Signed-off-by: David Sterba <dsterba@suse.com>
128 lines
3.5 KiB
Plaintext
128 lines
3.5 KiB
Plaintext
Installation instructions
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=========================
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The Btrfs utility programs require the following libraries/tools to build:
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- libuuid - provided by util-linux, e2fsprogs/e2fslibs or libuuid
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- libblkid - block device id library
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- liblzo2 - LZO data compression library
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- zlib - ZLIB data compression library
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- libzstd - ZSTD data compression library version >= 1.0.0
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For the btrfs-convert utility:
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- e2fsprogs - ext2/ext3/ext4 file system libraries, or called e2fslibs
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- libreiserfscore - reiserfs file system library version >= 3.6.27
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Optionally, the checksums based on cryptographic hashes can be implemented by
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external libraries. Builtin implementations are provided in case the library
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dependencies are not desired.
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- libgcrypt >= 1.8.0
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- libsodium >= 1.0.4
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- libkcapi >= 1.0.0
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Optionally, multipath device detection requires libudev and running udev
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daemon, as it's the only source of the path information. Static build has a
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fallback and does not need static version of libudev.
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- libudev
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For zoned device support, the system headers installed in /usr/include/linux
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must be 5.10 or newer.
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Generating documentation:
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- sphinx
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Please note that the package names may differ according to the distribution.
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Building from sources
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---------------------
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To build from git sources you need to generate the configure script using the
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autotools:
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$ ./autogen.sh
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To build from the released tarballs:
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$ ./configure
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$ make
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$ make install
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To install the libbtrfsutil Python bindings:
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$ make install_python
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You may disable building some parts like documentation, btrfs-convert or
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backtrace support. See ./configure --help for more.
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Specific CFLAGS or LDFLAGS should be set like
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$ CFLAGS=... LDFLAGS=... ./configure --prefix=/usr
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and not as arguments to make. You can specify additional flags to build via
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variables EXTRA_CFLAGS and EXTRA_LDFLAGS that get appended to the predefined
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values of the respective variables. There are further build tuning options
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documented in the Makefile.
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$ make EXTRA_CFLAGS=-ggdb3
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The build utilizes autotools, dependencies for generating the configure
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scripts are:
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* autoconf, autoheader
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* automake, aclocal
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* pkg-config
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Statically built binaries
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-------------------------
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The makefiles are ready to let you build static binaries of the utilities. This
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may be handy in rescue environments. Your system has to provide static version
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of the libraries.
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$ make static
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$ make btrfs.static
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$ make btrfs-convert.static
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The resulting binaries have the '.static' suffix, the intermediate object
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files do not conflict with the normal (dynamic) build.
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There are pre-built static binaries for download available at the latest
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release (under Assets), https://github.com/kdave/btrfs-progs/releases .
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All-in-one binary (busybox style)
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---------------------------------
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Since version 5.2 it's possible to build a single binary that can act as other
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standalone tools, based on the file name:
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$ make btrfs.box
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$ mv btrfs.box btrfs
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$ ln -s btrfs mkfs.btrfs
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The list of built-ins can be obtained by
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$ btrfs help --box
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The basic set will always contain: mkfs.btrfs, btrfs-image, btrfs-convert.
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32bit build on 64bit host
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-------------------------
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The combination of 32bit build on 64bit host could work but depends on the
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libraries that must provide the 32bit versions, or even 32bit static versions.
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This is fairly uncommon on contemporary distributions and building 32bit
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versions on a 32bit host is recommended.
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References:
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* https://btrfs.readthedocs.io
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* https://btrfs.wiki.kernel.org (outdated)
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