version 1, including all changes.
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perry |
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fdmount |
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!!!fdmount |
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Name |
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Note |
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Description |
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Options |
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Security |
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Daemon mode |
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Diagnostics |
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Bugs |
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See Also |
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---- |
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!!Name |
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fdmount - Floppy disk mount utility |
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!!Note |
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This manpage has been automatically generated from fdutils's |
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texinfo documentation. However, this process is only |
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approximative, and some items, such as crossreferences, |
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footnotes and indices are lost in this translation process. |
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Indeed, these items have no appropriate representation in |
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the manpage format. Moreover, only the items specific to |
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each command have been translated, and the general |
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information about fdutils has been dropped in the manpage |
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version. Thus I strongly advise you to use the original |
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texinfo doc. |
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* |
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To generate a printable copy from the texinfo doc, run the |
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following commands: |
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__ ./configure; make dvi; dvips fdutils.dvi |
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__ |
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* |
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To generate a html copy, run: |
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__ ./configure; make html |
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__A premade html can be found at: `http://www.tux.org/pub/knaff/fdutils' |
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* |
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To generate an info copy (browsable using emacs' info mode), |
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run: |
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__ ./configure; make info |
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__ |
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The texinfo doc looks most pretty when printed or as html. |
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Indeed, in the info version certain examples are difficult |
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to read due to the quoting conventions used in |
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info. |
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!!Description |
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fdmount [[-l] [[--list] [[-d] [[--daemon] [[--detach] |
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[[-i ''interval''] [[--interval ''interval''] [[-o ''mount-options'' |
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] |
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[[-r] [[-readonly] [[-s] [[--sync] [[--nosync] [[--nodev] |
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[[--nosuid] [[--noexec] [[-f] [[--force] [[-h] [[--help] |
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[[''drivename''] [[''mountpoint'' |
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] |
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fdumount [[-f] [[--force] [[''drivename'' |
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] |
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fdlist |
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fdmountd [[-i ''interval''] [[--interval ''interval'' |
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] [[-r] |
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[[-readonly] [[-s] [[--sync] [[--nosync] [[--nodev] |
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[[--nosuid] [[--noexec] [[--help] [[''drivename''] [[''mountpoint'' |
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]] |
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The fdmount program mounts a floppy disk in the |
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specified drive. It tries to figure out the exact format and |
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filesystem type of the disk from data in the disk's boot |
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sector or super block and the auto-detected track |
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layout. |
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Currently, fdmount supports the filesystems minix, |
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ext, ext2, xia, and |
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msdos, and includes special support for disks |
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formatted by the 2M utility for |
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MS-DOS. |
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It also checks whether the disk is write protected, in which |
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case it is mounted read-only. |
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The symbolic ''drivename'' is (currently) one of |
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`fd[[0-7]', corresponding to the special device |
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files `/dev/fd[[0-7]'. If ''drivename'' is not |
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specified, `fd0' is assumed. |
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The disk is mounted on the directory ''mountpoint'', if |
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specified, or on `/fd[[0-7]'. In either case, the |
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mount point must be an existing, writable |
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directory. |
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__Due to a bug in the floppy driver (?), the polling |
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interval (-i flag) must be longer than the spindown offset. |
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Thus you need to do (for example) floppycontrol --spindown |
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99 before starting fdmountd in daemon mode__ |
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!!Options |
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-l ''--list'' |
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List all known drives with their symbolic name, type, and |
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mount status. |
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-d ''--daemon'' |
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Run in daemon mode (see below). |
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--detach |
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Runs daemon in background, and detaches it from its tty. |
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Messages produced after the fork are logged to |
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syslog. |
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-p ''file'' |
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--pidfile ''file'' |
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Dumps the process id of the daemon to ''file''. This |
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makes killing the daemon easier: kill -9 `cat |
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''file''` |
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-i ''interval'' |
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--interval ''interval'' |
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Set the polling interval for daemon mode. The unit for |
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''interval'' is 0.1 seconds, the default value is 10 |
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(i.e. 1 second). |
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-o ''options'' |
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--options ''options'' |
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Sets filesystem-specific options. So far, these are only |
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available for DOS and Ext2 disks. The following DOS options |
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are supported: check, conv, |
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dotsOK, debug, fat, |
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quiet, blocksize. The following Ext2 |
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options are supported: check, errors, |
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grpid, bsdgroups, nogrpid, |
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sysvgroups, bsddf, minixdf, |
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resgid, debug, nocheck. When |
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running as a daemon, options not applying to the disk that |
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is inserted (because of its filesystem type) are not passed |
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to mount. |
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-r ''--readonly'' |
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Mount the disk read-only. This is automatically assumed if |
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the disk is write protected. |
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-s ''--sync'' |
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Mount with the SYNC option. |
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--nosync |
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Mounts without the SYNC option, even when running |
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as daemon. |
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--nodev |
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Mount with the NODEV option. Ignored for |
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msdos filesystems, otherwise always set for |
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non-root users. |
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--nosuid |
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Mount with the NOSUID option. Ignored for |
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msdos filesystems, otherwise always set for |
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non-root users. |
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--noexec |
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Mount with the NOEXEC option. |
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-f ''--force'' |
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Attempt a mount or unmount operation even |
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`/etc/mtab' says that the drive is already mounted, |
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or not mounted, respectively. This option is useful if |
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`/etc/mtab' got out of sync with the actual state |
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for some reason. |
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-h ''--help'' |
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Show short parameter description |
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!!Security |
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When mounting on the default mount point, the mount points' |
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owner is set to the current user, and the access flags |
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according to the user's umask. For a specified mountpoint, |
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owner and permissions are left unchanged. Default mount |
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points are called /fd0, /fd1, ... , |
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/fd7. |
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The user running fdmount must have read access to the floppy |
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device for read only mounts, and read/write access for |
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read/write mounts. |
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Fdmount can be run suid root, allowing users to mount floppy |
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disks. The following restrictions are placed upon non-root |
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users: |
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* |
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If a mountpoint is specified explicitly, it must be owned by |
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the user. |
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* |
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A user may only unmount a disk if the mount point is owned |
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by the user, or if it the disk has been mounted by the same |
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user. |
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* |
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Non-msdos disks are automatically mounted with the |
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nodev and nosuid flags set. |
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However, __do not rely on fdmount being secure at the |
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moment__. |
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!!Daemon mode |
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In daemon mode, the specified drive is periodically checked |
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and if a disk is inserted, it is automatically |
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mounted. |
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When the disk is removed, it is automatically unmounted. |
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However, it is recommended to unmount the disk manually |
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''before'' removing it. In order to limit corruption, |
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disks are mounted with the SYNC option when running in |
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daemon mode, unless the --nosync flag is |
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given. |
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Note that this mode has some potential |
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drawbacks: |
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* |
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Some floppy drives have to move the drive head physically in |
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order to reset the disk change signal. It is strongly |
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recommended not to use daemon mode with these drives. See |
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section floppycontrol for details. |
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* |
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If a disk does not contain a filesystem (e.g. a tar |
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archive), the mount attempt may slow down initial |
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access. |
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* |
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As fdmount cannot identify the user trying to use the disk |
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drive, there is no way to protect privacy. Disks are always |
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mounted with public access permissions set. |
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!!Diagnostics |
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error opening device ''name'' |
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error reading boot/super block |
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fdmount failed to read the first 1K of the disk. The disk |
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might be damaged, unformatted, or it may have a format wich |
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is unsupported by the FDC or the Linux kernel. |
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unknown filesystem type |
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No magic number of any of the supported filesystems (see |
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above) could be identified. |
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sorry, cant figure out format (''fs'' |
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filesystem) |
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The size of the filesystem on the disk is incompatible with |
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the track layout detected by the kernel and an integer |
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number of tracks. This may occur if the filesystem uses only |
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part of the disk, or the track layout was detected |
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incorrectly by the kernel. |
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failed to mount ''fs |
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''K-disk |
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The actual mount system call failed. |
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failed to unmount |
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The actual unmount system call failed. |
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cannot create lock file /etc/mtab~ |
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If `/etc/mtab~' exists, you should probably delete |
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it. Otherwise, check permissions. |
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Cant access ''mountpoint'' |
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Most probably, the default or specified mount point does not |
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exist. Use mkdir. |
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''mountpoint'' is not a directory |
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The mountpoint is not a directory. |
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not owner of ''mountpoint'' |
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Non-root users must own the directory specified as mount |
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point. (This does not apply for the default mount points, |
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/fd[[0-3].) |
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No write permission to |
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''mountpoint'' |
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Non-root users must have write permission on the mount point |
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directory. |
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Not owner of mounted directory: |
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UID=''uid'' |
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Non-root users cannot unmount if the mount point is owned |
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(i.e. the disk was mounted) by another user. |
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invalid drive name |
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Valid drive names are `fd0', `fd1', |
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etc. |
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drive ''name'' does not |
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exist |
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The drive does not exist physically, is unknown to the Linux |
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kernel, or is an unknown type. |
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Drive ''name'' is mounted |
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already |
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Trying to mount a drive which appears to be mounted already. |
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Use the --force option if you think this is |
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wrong. |
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Drive ''name'' is not |
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mounted |
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Trying to unmount a drive which does not appear to be |
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mounted. Use the --force option if you think this |
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is wrong. |
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462 |
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463 |
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ioctl(...) failed |
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465 |
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466 |
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|
467 |
If this occurs with the FDGETDRVTYP or |
|
|
468 |
FDGETDRVSTAT, ioctl's you should probably update |
|
|
469 |
your Linux kernel. |
|
|
470 |
|
|
|
471 |
|
|
|
472 |
mounted ''fs size''-disk |
|
|
473 |
(''options'') |
|
|
474 |
|
|
|
475 |
|
|
|
476 |
Success message. |
|
|
477 |
!!Bugs |
|
|
478 |
|
|
|
479 |
|
|
|
480 |
* |
|
|
481 |
|
|
|
482 |
|
|
|
483 |
Fdmount should be more flexible about drive names and |
|
|
484 |
default mount points (currently hard coded). |
|
|
485 |
|
|
|
486 |
|
|
|
487 |
* |
|
|
488 |
|
|
|
489 |
|
|
|
490 |
Probably not very secure yet (when running suid root). |
|
|
491 |
Untested with ext and xia filesystems. |
|
|
492 |
|
|
|
493 |
|
|
|
494 |
* |
|
|
495 |
|
|
|
496 |
|
|
|
497 |
Can't specify filesystem type and disk layout |
|
|
498 |
explicitly. |
|
|
499 |
|
|
|
500 |
|
|
|
501 |
* |
|
|
502 |
|
|
|
503 |
|
|
|
504 |
In daemon mode, the drive light stays on all the |
|
|
505 |
time. |
|
|
506 |
|
|
|
507 |
|
|
|
508 |
* |
|
|
509 |
|
|
|
510 |
|
|
|
511 |
Some newer filesystem types, such as vfat are not yet |
|
|
512 |
supported. |
|
|
513 |
!!See Also |
|
|
514 |
|
|
|
515 |
|
|
|
516 |
Fdutils' texinfo doc |
|
|
517 |
---- |