On Thursday, February 28, 2019 at 5:30:38 PM UTC-5, awokd wrote: > br....@gmail.com wrote on 2/28/19 3:33 PM: > > From wikipedia: > >> ISO 9660 is by design a read-only, pre-mastered file system ... all the > >> data has to be written in one go or "session" to the medium > > > > In order to update files, you need to extract the tree to a file system > > that supports updating files, then remaster the image, then use that image > > to DD to the USB. > > > Thought I was able to edit them directly on the USB drive in the past. > Has that changed, or am I confused?
If you: a) use dd to image an iso onto a flash drive, you now have an iso 9660 file system. It's not meant to be written ad-hoc from mount in an OS. If, instead, you: b) extract the files from the ISO to an appropriate r/w file system partition on a flash drive (FAT, eFAT, ext3, NTFS) then you can add/modify/delete files to your heart's content. However, with the latter approach, the mastered-for-ISO boot chain might only be expecting an ISO 9660 file system and therefore fail (in some cases) if it's not running off of one. Hence why there are often very detailed settings required to properly write some ISOs to flash drives and still end up with bootable media. Brendan -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/00011ddc-62fb-4f84-a86f-30b69baa3289%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
