Ubuntu Manpage: sload.f2fs - load directories and files into the device directly

NAME

       sload.f2fs - load directories and files into the device directly

SYNOPSIS

       sload.f2fs [ -f source-directory-path ] [ -t mount-point ] [ -d debugging-level ] [ -P ] [
       -c [ -L log-of-blocks-per-cluster ] [ -a compression-algorithm ] [  -x  file-extension-to-
       exclude-from-compression  |  -i  file-extension-to-include-for-compression ] [ -m minimum-
       compressed-blocks-per-cluster ] [ -r ] ] device

DESCRIPTION

       sload.f2fs is used to load directories and files into a disk partition, or an  F2FS  image
       (file).   device could a special file corresponding to the device (e.g.  /dev/sdXX), or an
       F2FS image file.

       The exit code returned by sload.f2fs is 0 on success and -1 on failure.

OPTIONS

-f source-directory-path
Specify the source directory path to be loaded.

-t mount-point-path
Specify the mount point path in the partition to load.

-d debug-level
Specify the level of debugging options. The default number is 0, which shows basic
debugging messages.

-P Preserve owner: user and group. The user and group of the source files will be
taken into account.

-c Enable a cluster-based file compression. The file would be chopped into clusters,
and each cluster is compressed independently.

-L log-of-blocks-per-cluster
Specify cluster size in power of two blocks. The minimum value is 2 (4 blocks,
default). The maximum value is 8 (256 blocks). Note that a block contains 4096
bytes. This option must be used with option -c.

-a compression-algorithm
Choose the algorithm for compression. Available options are: lzo, lz4 (default).
This option must be used with option -c.

-i file-extension-to-include-for-compression
Specify a file extension to include for the compression. To specify multiple file
extensions, use multiple option -i's. Files having one of the listed extensions
will be compressed. This option must be used with option -c.

-x file-extension-to-exclude-from-compression
Specify a file extension to exclude from compression. To specify multiple file
extensions, use multiple option -x's. Files having one of the listed extensions
won't be compressed. This option must be used with option -c.

-m minimum-compressed-blocks-per-cluster
Specify a minimum block count saved (by compression) per cluster. The minimum
value is 1 (default). Maximum value is the cluster size in blocks minus 1. If
compression of a cluster fails to save at least the minimum compressed block count
given by the option, the cluster will not be compressed. This option must be used
with option -c.

-r Specify read-only flag for the compressed files. It allows filesystem to release
compressed space to the users, since, without this option, filesystem should keep
the space for future file updates. This option must be used with option -c.

NOTES

       If neither -i nor -x is used, all files will be compressed.  Obviously, option -i  and  -x
       can not be used together.

AUTHOR

       This  version of sload.f2fs has been contributed by Hou Pengyang <houpengyang@huawei.com>,
       Liu  Shuoran  <liushuoran@huawei.com>,  Jaegeuk  Kim   <jaegeuk@kernel.org>,   Robin   Hsu
       <robinhsu@google.com>

AVAILABILITY

       sload.f2fs  is available from <git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs-
       tools.git>.