sqfstar 命令

常用示例

说明

sqfstar creates a squashfs filesystem directly from a tar archive read from stdin. Squashfs is a highly compressed read-only filesystem supporting multiple compression algorithms with block sizes from 4K to 1MB. The tool is useful for converting tar archives to squashfs without intermediate extraction. Compressed tar archives should be decompressed before piping (using zcat, xzcat, etc.). Files can be excluded by name, wildcard pattern, or regex.

参数

-comp _compressor_

Compression algorithm: gzip, lzo, lz4, xz, zstd, lzma

-b _block_size_

Block size in bytes (4K-1MB, default: 128K)

-noI

Do not compress inode table

-noD

Do not compress data blocks

-noF

Do not compress fragment blocks

-no-duplicates

Do not detect duplicate files

-all-root

Make all files owned by root

-force-uid _uid_

Set all file UIDs

-force-gid _gid_

Set all file GIDs

-regex

Treat exclude patterns as POSIX regex

-ignore-zeros

Allow concatenated tar archives

-mkfs-time _time_

Set filesystem creation time

-all-time _time_

Set all inode timestamps

-processors _num_

Number of processors to use

-mem _size_

Set memory limit

-progress

Show progress bar

-info

Print files as they are added