一条命令搞定

# isoinfo -d -i  /mnt/custom-centos-6.iso

CD-ROM is in ISO 9660 format

System id: LINUX

Volume id: ECData Linux 0.9.6

Volume set id:

Publisher id:

Data preparer id:

Application id: GENISOIMAGE ISO 9660/HFS FILESYSTEM CREATOR (C) 1993 E.YOUNGDALE (C) 1997-2006 J.PEARSON/J.SCHILLING (C) 2006-2007 CDRKIT TEAM

Copyright File id:

Abstract File id:

Bibliographic File id:

Volume set size is: 1

Volume set sequence number is: 1

Logical block size is: 2048

Volume size is: 2136849

El Torito VD version 1 found, boot catalog is in sector 580

Joliet with UCS level 3 found

Rock Ridge signatures version 1 found

Eltorito validation header:

Hid 1

Arch 0 (x86)

ID ''

Key 55 AA

Eltorito defaultboot header:

Bootid 88 (bootable)