Showing posts with label iso. Show all posts
Showing posts with label iso. Show all posts

Friday, November 27, 2009

Creating iso image using mkisofs

An ISO image is an archive file (disk image) of an optical disc using a conventional ISO (International Organization for Standardization) format. ISO image files typically have a file extension of .ISO. The name "ISO" is taken from the ISO 9660 file system used with CD-ROM media, but an ISO image can also contain UDF file system because UDF is backward-compatible to ISO 9660.

mkisofs is effectively a pre-mastering program to generate the iso9660 filesystem - it takes a snapshot of a given directory tree, and generates a binary image which will correspond to an iso9660 filesystem when written to a block device.

Here is an example of mkisofs usage ..

mkisofs -r -J -l -d -allow-multidot -allow-leading-dots -hide-rr-moved -disable-deep-relocation -V "EPM-1.1-LINUX-x86_64" -o epm-linux-x86_64.iso Disk1/

where
-r, -rational-rock Generate rationalized Rock Ridge directory information
-J, -joliet Generate Joliet directory information
-l, -full-iso9660-filenames Allow full 31 character filenames for ISO9660 names
-d, -omit-period Omit trailing periods from filenames (violates ISO9660)
-allow-multidot Allow more than one dot in filenames (e.g. .tar.gz) (violates ISO9660)
-allow-leading-dots Allow ISO9660 filenames to start with '.' (violates ISO9660)
-hide-rr-moved Rename RR_MOVED to .rr_moved in Rock Ridge tree
-D, -disable-deep-relocation
Disable deep directory relocation (violates ISO9660)
-V ID, -volid ID Set Volume ID
-o FILE, -output FILE Set output file name


How to mount an ISO image under linux?
mount -o loop -t iso9660 iso-name.iso /mountpoint