Date: Tue, 27 Jan 2004 21:39:06 +0000 From: Daniela <dgw@liwest.at> To: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org> Cc: questions@freebsd.org Subject: Re: Mounting ISO r/w Message-ID: <200401272139.06176.dgw@liwest.at> In-Reply-To: <44d695ihti.fsf@be-well.ilk.org> References: <200401252213.09805.dgw@liwest.at> <44d695ihti.fsf@be-well.ilk.org>
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On Tuesday 27 January 2004 14:31, Lowell Gilbert wrote: > Daniela <dgw@liwest.at> writes: > > I need information how to either mount an ISO image r/w or find out what > > options I must give to mkisofs to recreate it. > > I have to add and remove some files from the tree, but all other things > > should stay as they are. I tried vnconfig, but I can't get that thing to > > mount r/w. > > ISO9660 isn't intended to be a fully read-write format. > > You can replace files with later versions by adding them to the end of > a multi-session image, but that doesn't actually remove the original > from the earlier session. > > Occasionally I will do things like this by copying the files out of > the image, modifying the filesystem, and writing them back to a new > image, but that technique doesn't automatically give me the same set > of options on the 9660 filesystem. Typically, I don't care -- I want > to use a specific new set of options anyway -- but it's not quite what > you asked for. Sounds good, but the problems are that the ISO is bootable and it violates the ISO9660 standard in numerous ways. I have trouble figuring out how much standard-compliance I can turn off while still producing a readable CD-ROM. > In theory, it would be possible to do this, but it would be very > inefficient. It would require making a new ISO image with every > modification. > > Good luck.
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