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BRM posted on Tue, 05 Jan 2010 18:53:06 -0800 as excerpted: |
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> I have: |
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> |
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> CONFIG_CDROM_PKTCDVD=y |
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> CONFIG_CDROM_PKTCDVD_BUFFERS=8 |
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> # CONFIG_CDROM_PKTCDVD_WCACHE is not set |
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AFAIK, that's for packet data, not audio or ISO9660 filesystem, both of |
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which are stream based (disk or session at once), not packet based. |
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Normal CDs are stream based as well (by default), tho CD_RAM rewritables |
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are packet based I believe. DVDs are setup to be packet-written (UDF, |
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see below), tho they typically are written as a stream, anyway |
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|
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So basically |
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> Also have: |
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> |
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> CONFIG_BLK_DEV_IDECD=y |
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> CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y |
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|
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IDE is legacy/deprecated. The PATA/SATA drivers are current (yes, even |
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tho PATA is still classified experimental). Unless you need to use IDE |
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drivers for something not yet supported by the libata based drivers, you |
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should really switch over to the libata/PATA/SATA drivers and turn off |
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the entire IDE subsystem. At your leisure, of course, but I'd strongly |
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consider checking it out the next time you upgrade your kernel... Unless |
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you know you need it for legacy IDE drive controllers, of course. |
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|
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> But those are not likely it. It's likely with the File Systems... |
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> |
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>> CONFIG_ISO9660_FS=m |
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>> CONFIG_JOLIET=y |
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>> CONFIG_ZISOFS=y |
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>> CONFIG_UDF_FS=m |
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>> CONFIG_UDF_NLS=y |
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> |
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> I have all of these as 'y', no modules. Check to make sure the UDF and |
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> ISO9660 file system modules are loaded. Your issue may be that they are |
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> not being loaded for some reason. |
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|
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ISO9660 was the CDROM default, tho IIRC it's not used for CDA/CDAudio. |
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Joliet (AKA CDFS) is the MS backed ISO9660 additional metadata (long- |
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filename/lfn, pure unextended ISO9660 allows 31-char filenames only, with |
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certain other restrictions as well) extension, while RockRidge is the *ix |
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based parallel, which includes POSIX file permissions as well as the |
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longer filenames. Most folks have both enabled, to read CD/DVDs created |
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with either (and many people will include both extensions on their CD/ |
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DVDs, too), tho MS-only folks could probably get along with Joliet-only, |
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and *ix-only folks could get along with RockRidge only if they don't care |
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about compatibility or reading MS platform authored disks. |
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|
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ZISOFS is simply gzip-compressed ISOs, I believe. |
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|
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UDF, Universal Disk Format, was to be the successor to ISO9660, and is |
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what is used on DVDs by default (tho many/most are dual ISO9660/UDF as |
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their data format is compatible, it's the metadata location and format |
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that differs). As mentioned above, it can be packet-based or stream- |
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based. The original/plain UDF spec allowed for packet-based, but the |
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physical/practical limits of optical disc media make that difficult. |
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There's two additional forms of it, VAT and Spared, the latter being the |
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most practical for most RW media. Unfortunately, UDF support is often |
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only plain, particularly in older DVD players, etc, not VAT or Spared. |
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|
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> I also have: |
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> |
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> CONFIG_UFS_FS=y |
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> |
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> While I could be wrong, I believe some CD/DVD producers use the UFS file |
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> system on the discs, so while it's not directly listed under the CD/DVD |
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> stuff, it may still be important. |
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|
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AFAIK (and wikipedia backs it up, BTW, there's interesting wiki articles |
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on UDF, packet writing, ISO9660, etc, as well), UFS, Unix File System, |
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aka Berkeley Fast File System (FFS), has little or nothing to do with |
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optical media. According to wikipedia, the Sony Playstations v 2 & 3 use |
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UDF, but on the hard drive not on optical media. |
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|
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So you're probably getting UDF (universal disk format, optical) and UFS |
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(Unix File System, normally conventional magnetic hard drives) mixed up, |
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as I often do myself except I knew I was doing so and could therefore |
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look it up if necessary (as I finally did just now). But since I did |
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finally look them up, and in doing so I found out that UFS is Unix |
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filesystem, I think/hope I'll be able to keep them straight now, or at |
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least straighter. |
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|
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-- |
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Duncan - List replies preferred. No HTML msgs. |
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"Every nonfree program has a lord, a master -- |
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and if you use the program, he is your master." Richard Stallman |
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