On Fri, 2009-05-15 at 14:24 -0600, Ed Heron wrote: > From: "JohnS", Friday, May 15, 2009 12:18 PM > > > > > On Fri, 2009-05-15 at 12:01 -0600, Ed Heron wrote: > >> Should the wiki have a Tips and Tricks page for creating a ISO file from > >> a > >> CD or DVD? > >> > >> I realize this information is everywhere. Including > >> http://www.centos.org/docs/5/html/Installation_Guide-en-US/s1-steps-network-installs-ppc.html > >> > >> I don't, however, find it on the wiki... > >> > >> Is it within the scope of the wiki project to have it somewhere? > > --- > > http://wiki.centos.org/TipsAndTricks/CDtoDVDMedia > > The description on that page... > ---------- > The following script (mkdvdiso.sh) has been tested for CentOS 4 and 5 i386 > to create DVD ISO images from CD images, or from an installation tree. If > the installation tree does not contain a .discinfo file, one must be > obtained from the top level of a CD. > ---------- > seems to be describing creating a DVD image from a CD image or a source > directory, not how to create a image from a CD or DVD. > > I'm just talking about the > dd if=/dev/cd of=/usr/share/cd.iso > command. Useful for creating boot images for virtual machines and cd images > for cd/dvd servers. > > with maybe a suggestion of where to put the image, like /var/lib/xen/images > for xen or maybe /usr/share for other uses. --- Ok my mistake. You would be better off to use mkisofs for CDs? Now I see what your after. Now a word of warning. dd if=/root/boot.img of=/dev/fd0 will not work due to a Bug in the Kernel. It want allow access to the floppy drive. The work around is to use a external floppy which I have not tried yet. [root at xxxxxx ~]# mount /dev/fd0 /mnt/flop mount: block device /dev/fd0 is write-protected, mounting read-only mount: you must specify the filesystem type I had that problem when needing floppy boot images for vmware and virtual box. Same results with dd. JohnStanley
