On Wed, Sep 5, 2012 at 6:40 PM, Frederick Grose <[email protected]> wrote:
> This version of livecd-iso-to-disk is reworked to use the source root > filesystem in a chroot by default, along with the livecd-iso-to-disk script > embedded in the source. A --nochroot as well as a --avoidsourcescript > option are available for cases where the launching filesystem and/or > installation script is called for. > > One can load a Live USB by these steps: > 1. mounting the source.iso > 2. determine its loop device, /dev/loopN > 3. call /mountpoint/LiveOS/livecd-iso-to-disk /dev/loopN /dev/target > > All 3 steps could be avoided by providing some appropriate autorun scripts > for the iso, or including some standard install scripts that could be > invoked by clicking on them in Nautilus. > > By mounting the source.iso LiveOS filesystem in a chroot enviroment, the > current version of software components, including the installation script, > on the source can be used for installation. (If syslinux-extlinux is not > in the source, ext234,btrfs target devices will have to use the --nochroot > option and a system with the proper bootloader.) An --avoidsourcescript > option is also added to allow installation with alternative scripts. > > This new version of livecd-iso-to-disk prefers builtin functions, finds > and offers to unmount mounted targets, and reorders some compatibility > checks in order to bailout early, if needed. > > If this passes further testing (the DVD and netinst installer paths are > untested), I can submit incremental patches for these changes. > > Link to the reworked livecd-iso-to-disk script, > https://bugzilla.redhat.com/attachment.cgi?id=610112 > > Filed on this ticket, > https://bugzilla.redhat.com/show_bug.cgi?id=663986 > > > Testing and comments would be appreciated. > > --Fred > The script can be tested on an existing source.iso by invoking it with the --avoidsourcescript option, which will complete the installation using the launched script in the chroot instead of the the onboard version of livecd-iso-to-disk. The script could also be copied to the /LiveOS/ directory in the device filesystem of an installed Live USB, and then called from the from the mount point for that device, such as, /run/media/liveuser/MyUSBname/LiveOS/livecd-iso-to-disk /dev/MyUSBnode /dev/target, where MyUSBname is the mount point directory name and MyUSBnode is the /dev filesystem node, such as, sdc1 or sdd1, etc. --Fred
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