mirror of
https://gitee.com/openharmony/third_party_f2fs-tools
synced 2024-11-23 10:10:00 +00:00
ea01d23fa6
commit 80dba0f975
category: bugfix
issue: #I6VAS0
CVE: NA
Signed-off-by: DongSenhao <dongsenhao2@huawei.com>
---------------------------------------
I use user namespaces & debootstrap to bootstrap a system, and then
copy that into an image using sload.f2fs. However, without an option to
preserve the owner user & group of files, some files end up being owned
by the wrong user / group (0:0), which causes all kinds of other issues
This patch adds an option -P to preserve the user and group of files.
Signed-off-by: Daniel Abrecht <public@danielabrecht.ch>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: dongsenhao <dongsenhao2@huawei.com>
138 lines
3.6 KiB
Groff
138 lines
3.6 KiB
Groff
.\" Copyright (C) 2015 Huawei Ltd.
|
|
.\"
|
|
.TH SLOAD.F2FS 8
|
|
.SH NAME
|
|
sload.f2fs \- load directories and files into the device directly
|
|
.SH SYNOPSIS
|
|
.B sload.f2fs
|
|
[
|
|
.B \-f
|
|
.I source-directory-path
|
|
]
|
|
[
|
|
.B \-t
|
|
.I mount-point
|
|
]
|
|
[
|
|
.B \-d
|
|
.I debugging-level
|
|
]
|
|
[
|
|
.B \-P
|
|
]
|
|
[
|
|
.B \-c
|
|
[
|
|
.B \-L
|
|
.I log-of-blocks-per-cluster
|
|
]
|
|
[
|
|
.B \-a
|
|
.I compression-algorithm
|
|
]
|
|
[
|
|
.B \-x
|
|
.I file-extension-to-exclude-from-compression
|
|
|
|
|
.B \-i
|
|
.I file-extension-to-include-for-compression
|
|
]
|
|
[
|
|
.B \-m
|
|
.I minimum-compressed-blocks-per-cluster
|
|
]
|
|
[
|
|
.B \-r
|
|
]
|
|
]
|
|
.I device
|
|
.SH DESCRIPTION
|
|
.B sload.f2fs
|
|
is used to load directories and files into a disk partition, or an F2FS
|
|
image (file).
|
|
\fIdevice\fP could a special file corresponding to the device (e.g.
|
|
\fI/dev/sdXX\fP), or an F2FS image file.
|
|
|
|
.PP
|
|
The exit code returned by
|
|
.B sload.f2fs
|
|
is 0 on success and -1 on failure.
|
|
.SH OPTIONS
|
|
.TP
|
|
.BI \-f " source-directory-path"
|
|
Specify the source directory path to be loaded.
|
|
.TP
|
|
.BI \-t " mount-point-path"
|
|
Specify the mount point path in the partition to load.
|
|
.TP
|
|
.BI \-d " debug-level"
|
|
Specify the level of debugging options.
|
|
The default number is 0, which shows basic debugging messages.
|
|
.TP
|
|
.BI \-P
|
|
Preserve owner: user and group.
|
|
The user and group of the source files will be taken into account.
|
|
.TP
|
|
.BI \-c
|
|
Enable a cluster-based file compression.
|
|
The file would be chopped into clusters, and each cluster is compressed
|
|
independently.
|
|
.TP
|
|
.BI \-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 \fB\-c\fR.
|
|
.TP
|
|
.BI \-a " compression-algorithm"
|
|
Choose the algorithm for compression. Available options are:
|
|
lzo, lz4 (default).
|
|
This option must be used with option \fB\-c\fR.
|
|
.TP
|
|
.BI \-i " file-extension-to-include-for-compression"
|
|
Specify a file extension to include for the compression.
|
|
To specify multiple file extensions, use multiple option \fB\-i\fR's.
|
|
Files having one of the listed extensions will be compressed.
|
|
This option must be used with option \fB\-c\fR.
|
|
.TP
|
|
.BI \-x " file-extension-to-exclude-from-compression"
|
|
Specify a file extension to exclude from compression.
|
|
To specify multiple file extensions, use multiple option \fB\-x\fR's.
|
|
Files having one of the listed extensions won't be compressed.
|
|
This option must be used with option \fB\-c\fR.
|
|
.TP
|
|
.BI \-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 \fB\-c\fR.
|
|
.TP
|
|
.BI \-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 \fB\-c\fR.
|
|
|
|
.SH NOTES
|
|
If neither \fB\-i\fR nor \fB\-x\fR is used, all files will be compressed.
|
|
Obviously, option \fB\-i\fR and \fB-x\fR can not be used together.
|
|
|
|
.SH AUTHOR
|
|
This version of
|
|
.B 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>
|
|
.SH AVAILABILITY
|
|
.B sload.f2fs
|
|
is available from <git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs-tools.git>.
|
|
.SH SEE ALSO
|
|
.BR mkfs.f2fs(8),
|
|
.BR fsck.f2fs(8),
|
|
.BR dump.f2fs(8),
|
|
.BR defrag.f2fs(8),
|
|
.BR resize.f2fs(8).
|