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Keywords - D

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daemon, starting terminal
· Starting a terminal daemon ·
data
bits
· Data bits ·
compressing
· Compression ·
ensuring integrity of
· Introduction · Using chkfsys ·
troubleshooting corrupted
· Recovering lost files and directories ·
troubleshooting serial transmission
· Troubleshooting serial device problems ·
date
date utility
· Getting the date and time from the realtime clock ·
establishing
· Getting the date and time from the realtime clock ·
daylight saving time
changing to or from
· Getting the date and time from the realtime clock ·

See also time zones

dcheck utility
· dcheck ·
dequeuing print jobs
· Controlling the spool queues ·
device drivers
Dev.ansi
· Starting device drivers ·
Dev.con
· Console Devices · Starting device drivers ·
Dev.par
· Starting device drivers · Starting device drivers ·
Dev.pty
· Starting device drivers ·
Dev.ser
· I/O addresses · Starting device drivers · Starting device drivers ·
starting
· Starting device drivers · Starting device drivers ·

See also drivers

Device Manager (Dev)
· Starting device drivers ·
starting
· Starting device drivers · Starting device drivers ·
devices
/dev/par (LPT1)
· Single parallel port ·
configuring parallel port
· Parallel devices ·
configuring serial port
· Serial devices ·
connecting target output to printer
· Spooler architecture ·
DOS
· DOS devices ·
maintaining exclusive access
· Exclusive access to serial devices ·
managed by Dev process
· Starting device drivers ·
mounting
· Partitioning the pathname space ·
reinitializing printer between spool jobs
· Spooler architecture ·
shared resources
· Sharing resources on a network ·
starting LPT2 parallel port
· Multiple parallel ports ·
tracking usage
· Record format ·
troubleshooting
· Selecting executables for an image ·
unmounting
· Partitioning the pathname space ·

See also parallel devices; serial devices

dinit utility
· Copying files to floppy · dinit · Root directory ·
directories
/boot/build
· Step 3 -- Construct the build file ·
/etc/licenses
· Old- and new-style licenses ·
accessing on another node
· Independent ·
checking structure
· chkfsys ·
contents of root directory
· Root directory ·
creating, deleting, & reading DOS
· Setting up a DOS filesystem ·
defined
· Directories ·
entries
· Directories ·
st_mode field
· File permissions ·
type
· Directories ·
for temporary spooler files
· Specifying a temporary directory for spool files  --  cd ·
permissions
· File permissions · How mode bits are assigned ·
QNX signature
· Directories ·
recovering lost
· Recovering lost files and directories ·
removing without returning used blocks
· zap ·
root directory
· Introduction ·
selecting $HOME directory when account created
· Home directory, initial command, and initial password ·
showing all files
· A hard disk and a floppy · Two hard disks (same node) ·
structure
· A typical directory structure · Directories ·
terminfo
· The terminfo database ·

See also files; root directory

disks
as backup media
· Backup media ·
backing up to or restoring from
· Fixed disk · Floppy · Removable disk ·
block allocation verified by chkfsys
· chkfsys ·
browsing
· spatch ·
determining if damaged
· Introduction ·
formatting
· Multiple QNX partitions ·
partitions
· Partition components ·
patching minor problems
· spatch ·
recovery procedures
· Disk recovery procedures ·
regular maintenance procedure
· When to run chkfsys ·
restoring bad blocks in middle of file
· Recovering from a bad block in the middle of a file ·
scanning and adopting DOS drives
· Starting Dosfsys ·
sharing across network
· Local and remote hard disks ·
space, allocating
· Multiple QNX partitions ·
structure
· Overview of QNX disk structure ·
troubleshooting corrupted
· Recovering lost files and directories ·

See also partitions; floppies

ditto utility
· Network diagnostics ·
DOS
boot parameter block (BPB)
· DOS devices ·
carriage return sequence
· DOS text files ·
devices
· DOS devices ·
directories
· Setting up a DOS filesystem ·
disks
accessing via QNX
· Setting up a DOS filesystem ·
formats
· DOS version support ·
drives
accessing via QNX
· DOS devices ·
currently adopted
· Invocation modes ·
default
· Starting Dosfsys ·
root name
· Starting Dosfsys ·
scanning and adopting
· Starting Dosfsys ·
file allocation table (FAT)
· DOS devices ·
filenames
invalid characters
· QNX-to-DOS character and name mapping ·
QNX/DOS character and name mapping
· QNX-to-DOS character and name mapping ·
files
accessing via QNX
· Setting up a DOS filesystem ·
binary
· DOS binary files ·
converting to QNX format
· DOS text files ·
copying
· DOS devices ·
ownership
· File ownership ·
text format
· DOS text files ·
viewing open
· Invocation modes ·
filesystems
attribute bits
· Attribute-bit translations ·
floppies and partitions
· Starting a DOS filesystem ·
limitations
· Dosfsys name adoption ·
permissions
· Permission-bit translations ·
recovering corrupted
· Error codes returned by Dosfsys ·
setting up
· Setting up a DOS filesystem ·
volume labels
· DOS volume labels ·
partitions
formats
· DOS version support ·
primary
· Starting Dosfsys ·
types
· DOS partition types ·
versions
· DOS version support ·

See also Dosfsys

Dosfsys filesystem manager
· Setting up a DOS filesystem · Starting a DOS filesystem ·
error return codes
· Error codes returned by Dosfsys ·
invocation modes
· Invocation modes ·
name adoption
· Dosfsys name adoption ·
scanning and adopting drives
· Starting Dosfsys ·
starting
· Starting Dosfsys ·
in sysinit
· Starting a DOS filesystem ·
terminating
· Invocation modes · Terminating Dosfsys ·
dot (directory link)
· Directories ·
dot dot (directory link)
· Directories ·
drivers
console
· Starting device drivers ·
Fsys.floppy
· Floppy ·
locking floppy driver to specific media size
· Archiving data to floppy ·
mandatory for hard disk boot
· Disk images ·
mandatory for network boot
· Network images ·
multiple network
· Starting two or more network drivers ·
network (nettrap)
· Starting two or more network drivers ·
parallel
· Starting device drivers ·
pseudo tty
· Starting device drivers ·
removing and reinstalling
· Removing and reinstalling drivers ·
serial
· Starting device drivers ·
starting
· Starting device drivers ·
testing
parallel
· Testing parallel drivers ·
serial
· Testing serial drivers ·

See also device drivers

drives
See disks
DSR lines
· Session control ·
DTR lines
· Session control ·

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