You can mount DVD / CD iso images using loop module under Linux (Sun Solaris UNIX user can try out lofiadm command) . It would be good idea to increase the number of loop filesystems allowed to be mounted simultaneously by adding the following line to /etc/modprobe.conf file:

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Task: Set maximum number of loop devices

Open Linux kernel module configuration file using text editor:
# vi /etc/modprobe.conf

Append loop module configuration parameter:
options loop max_loop=256

Where,
=> loop : module name

=> max_loop=256: Maximum number of loop devices (1-256)

This is useful on dedicated installation server. For example internally we have over 5 Linux distro ISO downloaded with new and old version number. We use iso for HTTP or FTP installation over LAN. By increasing limit to max you can avoid problems.

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I'm Vivek Gite, and I write about Linux, macOS, Unix, IT, programming, infosec, and open source. Subscribe to my RSS feed or email newsletter for updates.

1 comment… add one
  • fraterneo Apr 25, 2013 @ 4:34

    Hello. This site is a great source for help in Linux issues. Thanks for all your work.

    Right now I am trying to edit the file /etc/modprobe.conf under Fuduntu (Fedora based distro) but it does no exists and modinfo loop says ERROR: Module loop not found.

    Please, help me.

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