Top Document: comp.sys.hp.hpux FAQ Previous Document: 5.3.7 What's new with remote mounts and the automounter? Next Document: 5.3.9 How can I start the PFS daemons automatically at system startup? See reader questions & answers on this topic! - Help others by sharing your knowledge CD-ROMs are generally formatted using a filesystem called ISO-9660 (aka ECMA-119), which is an update of an earlier specification called High Sierra. There are very minor differences between the two, and HP-UX supports them both. The user doesn't have to know which is which, although nobody's actually produced a High Sierra CD-ROM in many years. ISO-9660 "file identifiers" consist of a filename, a dot, an extension, a semicolon, and a version number from 1 to 32767. The standard specifies three levels of "interchange", the strictest of which limits filenames to 8 characters, extensions to 3 characters, and the characters can be only upper-case letters, digits and underscores. The reason why the letters are all uppercase is because most CD-ROMs are encoded to the strictest interchange level. To get rid of the semicolon and version number, and to force the filenames to lower case, mount the file system with the "cdcase" option (see mount_cdfs(1M)). There is a widely used extension of ISO-9660 called "Rock Ridge" which adds enough file system metadata to support full POSIX file system semantics. Rock Ridge filenames are formatted similarly to ISO-9660 file identifiers -- all UPPERCASE with ;1 version numbers. Currently, 11.0 supports Rock Ridge via a patch. Other versions of HP-UX do not support Rock Ridge, except through PFS. Rock Ridge support has recently been provided for 11.x via patches: o 11.00: PHKL_21586 o 11.11: (patch recalled due to defect) The Portable FileSystem (PFS) was originally developed by Young Minds, Inc. It was originally only available as a demo package, but it was eventually bundled with HP-UX, starting with release 10.10. PFS supports the following CD-ROM formats: ISO-9660, Rock Ridge, and High Sierra. As explained above, the HP-UX mount command currently only supports ISO-9660 and High Sierra. You must have network loopback, and networking in general, configured before running PFS on HP-UX. The command 'netstat -rn' shows the network routing tables; the entry 'lo0' is for the loopback interface. To enable network loopback (if it is not already enabled), add the line: LOOPBACK_ADDRESS=127.0.0.1 to the file /etc/rc.config.d/netconf. PFS is RPC-based and offers the some features that NFS provides, which means that a CD-ROM can be exported over your network without going through NFS. However, PFS does require that the nfs.core and nfs.client subsystems are both running. To start these, make sure NFS_CLIENT=1 in /etc/rc.config.d/nfsconf then run: # /sbin/init.d/nfs.core start # /sbin/init.d/nfs.client start Note, using these init scripts to start NFS will ensure that rpcbind, which PFS relies on, is also started. NOTE: On 10.20 or 11.00, you must install a patch prior to running PFS, or you might not be able to eject the CD-ROM after unmounting it. This problem is fixed in 11i. The patches are: o 10.20: PHCO_15453 o 11.00: PHCO_16438 All Oracle[R] installation CDROM's are RockRidge-formatted, and so must be mounted via PFS. To use PFS to mount a RockRidge CDROM: 1) Make sure the directory containing the PFS utilities (/usr/sbin) is in your PATH. 2) Edit (or create) the /etc/pfs_fstab file to contain a line like this: <device> <mount_dir> pfs-rrip xlat=rrip 0 0 Where: <device> is the path to your CD-ROM reader (e.g. /dev/dsk/c1t2d0) <mount_dir> is the path to an *existing* directory where the CD-ROM will be mounted (e.g. /rr_cdrom) 3) Run the following commands: # nohup pfs_mountd & # nohup pfsd 4 & Alternatively, these daemons can be started from an rc script; see question 5.3.9. 4) Mount the drive with the command: pfs_mount <device> | <mount_dir> Or unmount it with: pfs_umount <device> | <mount_dir> Where <device> and <mount_dir> are the same as in 2). The CD-ROM should be now readable with long and mixed-case filenames. For HP-UX 10.01 and earlier, you can install a patch: o 10.01 s700: PHKL_23512 o 10.01 s800: PHKL_23513 o 10.00 s700: PHKL_6076 o 10.00 s800: PHKL_6077 These add a modification to the CDFS code which can translate all mounted CDROMs (not selectively) to accomplish the same task. This patch adds no additional filesystem support, such as POSIX or the RockRidge Extensions. On 10.20 and later systems, for ISO-9660 CDs that contain all-uppercase 8.3 filenames (ie - MS-Windows CDs), it is not necessary to use PFS. Instead use the mount command's "-o cdcase" option. See mount_cdfs(1M) for more information. HP-UX cannot read Joliet, video, or audio discs without the use of 3rd-party software. User Contributions:Top Document: comp.sys.hp.hpux FAQ Previous Document: 5.3.7 What's new with remote mounts and the automounter? Next Document: 5.3.9 How can I start the PFS daemons automatically at system startup? 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Last Update March 27 2014 @ 02:11 PM
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