mount -w of dvd+rw etc. in vanilla 2.6
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mount -w -t udf works with my dvd-ram ...
mistakenly sees my dvd+rw as read-only ...
Besides that Andy Polyakov patch for mount -w of dvd+rw, the web has Jens Axboe patches for mount -w of cd-rw, via the udf faq (Not via the udftools faq):
http://sourceforge.net/projects/linux-udf/
udf-0.9.7.tar.gz
FAQ
http://w1.894.telia.com/~u89404340/patches/packet/
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From these two clues, kindly offline people have identified the Four
fragments of kernel source that cooperate to conclude erroneously that dvd+rw etc. are not writable:
1)
drivers/scsi/sr.c understands only the CDC_DVD_RAM profile of the seven standard mmc "writable" device "profile"s, because sr.c neglects to look beyond the "Capabilities" mode page x2a i.e. does not look beyond the mmc 1 standard of 1997. Ansi did not publish an op x46 Get Configuration standard until the mmc 2 of 1999.
2)
include/scsi/scsi.h does not yet #define GET_CONFIGURATION 0x46.
3)
drivers/cdrom/cdrom.c also understands only CDC_DVD_RAM: cdrom.c erroneously claims all mmc profiles except CDC_DVD_RAM are not FMODE_WRITE-able.
4)
include/linux/cdrom.h names only CDC_DVD_RAM.
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Anyone have an idea of how best to patch this?
I've seen a few linux-2.6.0-test4/ and linux-2.4.22/ alternatives mostly work. Anyone interested in evaluating some of them?
Pat LaVarre