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mmcformat(8) [netbsd man page]

MMCFORMAT(8)						    BSD System Manager's Manual 					      MMCFORMAT(8)

NAME
mmcformat -- format optical media SYNOPSIS
mmcformat [-BDFGHhIMOpRrSsw] [-b blockingnr] [-c cert-num] special DESCRIPTION
The mmcformat utility formats optical media conforming to the MMC standard. This includes CD, DVD, and Blu-Ray (BD) media. The options are as follows: -B Blank media when possible before formatting it. -b blockingnr Explicitly select packet size in sectors (for CD-RW only). It is not recommended to change this from its default of 32. -c cert-num Certify media for DVD-RAM / DV-RE. The argument cert-num specifies: 0 no certification 1 full certification 2 quick certification -D Debug mode. Print all SCSI/ATAPI command errors. -F Format media. -G Grow last CD-RW/DVD-RW session. -H Show help and print formatting choices for the inserted media. -h Show help and print formatting choices for the inserted media. -I Show help and print formatting choices for the inserted media. -M Select MRW (Mount Rainier) error correcting background format. -O Old style CD-RW formatting; recommended for CD-RW. -p Explicitly set packet format. -R Restart previously stopped MCD-MRW or DVD+RW background format. -r Recompile defect list for DVD-RAM. -S Grow spare space DVD-RAM / BD-RE. -s Format DVD+MRW / BD-RE with extra spare space. -w Wait until completion of background format. NOTES
Due to the enormous varieties in optical media, mmcformat is made as generic as possible. This can result in confusion. EXAMPLES
mmcformat -B -O /dev/rcd0d Blanks and then formats a CD-RW disc using the ``old style'' format command. It is recommended to use this ``old style'' command unless your drive reports that it's not supported; in that case, resort to the default -F. Note that a CD-RW disc can be reformatted without being blanked. Blanking switches between sequential and fixed packet writing by erasing the disc. This can also help to revive old discs. mmcformat -F -M /dev/rcd0d Format a CD-RW or a DVD+RW to use MRW (Mount Rainier). This format tries to hide media flaws as much as possible by relocation. SEE ALSO
scsictl(8) HISTORY
The mmcformat command first appeared in NetBSD 5.0. AUTHORS
Reinoud Zandijk <reinoud@NetBSD.org> BUGS
mmcformat could be merged with scsictl(8) but that tool is very hard disk oriented. BSD
May 9, 2008 BSD

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MOUNT_UDF(8)						    BSD System Manager's Manual 					      MOUNT_UDF(8)

NAME
mount_udf -- mount a UDF filesystem SYNOPSIS
mount_udf [-o options] [-s sessionStart] [-n lastRecordedLBA] [-b blockSize] [-p packetSizeInBlocks] [-v verificationPolicy] [-w] devicePath mountPath DESCRIPTION
The mount_udf command attaches the UDF filesystem residing on the device devicePath to the global filesystem namespace at the location indi- cated by mountPath. This command is normally executed by mount(8) at boot time. The options are as follows: -o options Options are specified with a -o flag followed by a comma separated string of options. See the mount(8) man page for possible options and their meanings. -v verificationPolicy This is an advanced option not useful for regular use. It controlls the verification policy when writing to RW type optical media. Its value can be "meta", "all", or "none". Policy "meta" means only the metadata are verified after they are written. This is the default policy. Policy "all" means to verify data written, which could be several times slower than policy "meta". Policy "none" does not verify any data. It is only slightly faster than "meta" in normal cases, but may result a corrupted UDF disc if the write of metadata fails. -s sessionStart This is an advanced option not useful for regular use. When manually mounting a UDF volume with Virtual Partition, it specifies the start Logical Block Address of the last session where UDF data structures (VRS and AVDP) resides. This value overrides the value obtained from the device. -n lastRecordedLBA This is an advanced option not useful for regular use. When manually mounting a UDF volume with Virtual Partition, it specifies the last recorded Logical Block Address where the UDF VAT ICB will be searched. This value overrides the value obtained from the device. -b blockSize This is an advanced option not useful for regular use. It specifies the block size in bytes used when mounting the UDF volume. This value overrides the value obtained from the device. -p packetSizeInBlocks This is an advanced option not useful for regular use. It specifies the packet size in blocks when manually mounting the UDF volume. This value overrides the value obtained from the device. -w This is an advanced option not useful for regular use. It forces to enable the experimental packet writing function on optical media that has not been fully supported, such as CD-R, CD-RW, DVD-R, DVD+R, HD DVD-R, and BD-R. Writing to these media does not work on some drives and may cause data corruption or data loss on some other drives. Therefore, this flag should be used only by file system developers when debugging the experimental write functions. The -s, -n, -b, and -p flags are not useful in normal use. They are mainly used for debugging and data recovery. Since the -s, -n, and -p flags are all specified in units of block size, when any of these flags are specified, it is strongly recommended that the -b flag is also specified. SEE ALSO
mount(2), unmount(2), fstab(5), mount(8) BUGS
Reading of all UDF revisions (1.02 - 2.60) on both block device (e.g., hard drives and USB drives) and most optical media is supported. Writing to block devices, DVD-RW and DVD+RW is supported with the following exceptions: (1) Cannot write Finder Info, Resource Fork, or other extended attributes in UDF volumes of revision 1.02 and 1.50; (2) Cannot write to mirrored metadata partition. HISTORY
The mount_udf utility first appeared in Mac OS X. 4th Berkeley Distribution December 6, 2006 4th Berkeley Distribution
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