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Diffstat (limited to '')
| -rw-r--r-- | Documentation/cdrom/packet-writing.rst (renamed from Documentation/cdrom/packet-writing.txt) | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/Documentation/cdrom/packet-writing.txt b/Documentation/cdrom/packet-writing.rst index 2834170d821e..c5c957195a5a 100644 --- a/Documentation/cdrom/packet-writing.txt +++ b/Documentation/cdrom/packet-writing.rst @@ -1,3 +1,7 @@ +============== +Packet writing +============== + Getting started quick --------------------- @@ -10,13 +14,16 @@ Getting started quick Download from http://sourceforge.net/projects/linux-udf/ - Grab a new CD-RW disc and format it (assuming CD-RW is hdc, substitute - as appropriate): + as appropriate):: + # cdrwtool -d /dev/hdc -q -- Setup your writer +- Setup your writer:: + # pktsetup dev_name /dev/hdc -- Now you can mount /dev/pktcdvd/dev_name and copy files to it. Enjoy! +- Now you can mount /dev/pktcdvd/dev_name and copy files to it. Enjoy:: + # mount /dev/pktcdvd/dev_name /cdrom -t udf -o rw,noatime @@ -25,11 +32,11 @@ Packet writing for DVD-RW media DVD-RW discs can be written to much like CD-RW discs if they are in the so called "restricted overwrite" mode. To put a disc in restricted -overwrite mode, run: +overwrite mode, run:: # dvd+rw-format /dev/hdc -You can then use the disc the same way you would use a CD-RW disc: +You can then use the disc the same way you would use a CD-RW disc:: # pktsetup dev_name /dev/hdc # mount /dev/pktcdvd/dev_name /cdrom -t udf -o rw,noatime @@ -41,7 +48,7 @@ Packet writing for DVD+RW media According to the DVD+RW specification, a drive supporting DVD+RW discs shall implement "true random writes with 2KB granularity", which means that it should be possible to put any filesystem with a block size >= -2KB on such a disc. For example, it should be possible to do: +2KB on such a disc. For example, it should be possible to do:: # dvd+rw-format /dev/hdc (only needed if the disc has never been formatted) @@ -54,7 +61,7 @@ follow the specification, but suffer bad performance problems if the writes are not 32KB aligned. Both problems can be solved by using the pktcdvd driver, which always -generates aligned writes. +generates aligned writes:: # dvd+rw-format /dev/hdc # pktsetup dev_name /dev/hdc @@ -83,7 +90,7 @@ Notes - Since the pktcdvd driver makes the disc appear as a regular block device with a 2KB block size, you can put any filesystem you like on - the disc. For example, run: + the disc. For example, run:: # /sbin/mke2fs /dev/pktcdvd/dev_name @@ -97,7 +104,7 @@ Since Linux 2.6.20, the pktcdvd module has a sysfs interface and can be controlled by it. For example the "pktcdvd" tool uses this interface. (see http://tom.ist-im-web.de/download/pktcdvd ) -"pktcdvd" works similar to "pktsetup", e.g.: +"pktcdvd" works similar to "pktsetup", e.g.:: # pktcdvd -a dev_name /dev/hdc # mkudffs /dev/pktcdvd/dev_name @@ -115,7 +122,7 @@ For a description of the sysfs interface look into the file: Using the pktcdvd debugfs interface ----------------------------------- -To read pktcdvd device infos in human readable form, do: +To read pktcdvd device infos in human readable form, do:: # cat /sys/kernel/debug/pktcdvd/pktcdvd[0-7]/info |