1.安装工具
[root@localhost ~]# yum install -y squashfs-tools1
2.用unsuqashfs命令直接解压缩squashfs.img
[root@localhost ~]# unsquashfs squashfs.imgParallel unsquashfs: Using 48 processors1 inodes (16384 blocks) to write[====================================================================================================================================================================================-] 16384/16384 100% created 1 files created 2 directories created 0 symlinks created 0 devices created 0 fifos1234567891011
3.挂载文件系统
[root@localhost ~]# cd squashfs-root/LiveOS/ [root@localhost LiveOS]# mount rootfs.img /mnt/rootfs/ [root@localhost LiveOS]# ls /mnt/rootfs/ bin boot dev etc firmware lib lib64 lost+found mnt modules proc root run sbin sys tmp usr var
4.根据需要可以修改/mnt/rootfs目录下文件
5.修改后重新打包
[root@localhost ~]# mksquashfs squashfs-root/ squashfs.img -comp xz -Xbcj x86 -e boot Parallel mksquashfs: Using 48 processors Creating 4.0 filesystem on squashfs.img, block size 131072. [====================================================================================================================================================================================-] 16384/16384 100% Exportable Squashfs 4.0 filesystem, xz compressed, data block size 131072 compressed data, compressed metadata, compressed fragments, compressed xattrs duplicates are removed Filesystem size 442739.12 Kbytes (432.36 Mbytes) 21.11% of uncompressed filesystem size (2097216.44 Kbytes) Inode table size 23442 bytes (22.89 Kbytes) 35.69% of uncompressed inode table size (65690 bytes) Directory table size 58 bytes (0.06 Kbytes) 100.00% of uncompressed directory table size (58 bytes) Xattr table size 55 bytes (0.05 Kbytes) 100.00% of uncompressed xattr table size (55 bytes) Number of duplicate files found 0 Number of inodes 3 Number of files 1 Number of fragments 0 Number of symbolic links 0 Number of device nodes 0 Number of fifo nodes 0 Number of socket nodes 0 Number of directories 2 Number of ids (unique uids + gids) 1 Number of uids 1 root (0) Number of gids 1 root (0)
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