On 2017-01-29, Grant Edwards <grant.b.edwa...@gmail.com> wrote: > On 2017-01-29, Marko Rauhamaa <ma...@pacujo.net> wrote: > >> Mount? As a regular user? > > Yes, using a "fuse" use-space filesystem, you can mount things as a > normal user. There are a couple ISO9660 fuse implemenations. But, you > can't modify a mounted ISO9660 filesystem. I have read about how to > use a union mount to simulate a writable ISO9660 filesystem, but > that's going to require root (I've never tried it). > > As long as you've got the disk space available, the simplest option is > to unpack the .iso into a directory, modify the files, and then use > mkisofs to create the new .iso image.
OK, just one more level of pointless digression... _If_ your ISO image is using syslinux as the bootloader (it probably isn't, it's almost certainly using isolinux -- usually in hybrid mode), then the bootloader stuff is actually an image of a bootable floppy disk. It is sort of "outside" the normal ISO9660 filesystem with a fixed size in a "well known" location. I'm pretty sure you could extract that chunk from the ISO using dd, tweak it, and then put it back into the ISO image without having to mount/extract everything and then recreate a new ISO9660 image. But, it's very probably using isolinux, so the bootloader configuration stuff is actually inside the ISO9660 filesystem tree, and you'll have to extract the whole tree, modify the files, and create a new ISO9660 image. -- Grant -- https://mail.python.org/mailman/listinfo/python-list
