Silver OpenServer -> UnixWare Upgrade Notes.Email: email@example.com
Comments to firstname.lastname@example.org
These two operating systems are very similar and the vast majority of commands are exactly the same. If you find an OpenServer command that doesn't appear to work under UnixWare, then consider the following:-
- apropos "key word"
lists out commands that might use <key word>
- man "command"
displays the manual page
- scoadmin -> scohelp -> find "expression"
searches all online manuals for "expression"
Apart from these notes, there is also a document supplied by SCO that describes other differences.
Point your browser to http://"IP of UnixWare m/c":457/ scroll down left hand side to bottom and click Select first item = Differences Select third and fifth items
OpenServer tcsh users can continue to use the same shell: a UnixWare copy of tcsh is supplied by SCO on the Skunkware CD.
There is one additional way to make the transition easier. At the command line, in a shell script, or in a start-up file (such as .profile) type or include the following statements:
OSRCMDS=on export OSRCMDS
Setting the OSRCMDS environment variable in the current process environment causes the shell to invoke the SCO OpenServer versions of some commands that are found in /OpenServer/bin. However beware that OpenServer utilities do not support files greater than 2Gb.
There is no /usr/adm/messages file - instead check:- /var/adm/syslog /var/adm/log/osmlog or cs.log or ppp.log
Device unit numbers in OpenServer start at zero, ie /cd0 or /dev/lp0 In UnixWare they start at one, cdrom1 or /dev/lp1 The exception is the tape drive /dev/rct0 is the first tape unit under UnixWare
The names have become longer / have moved directory / changed a bit
To mount a cd in UnixWare mount -r -F cdfs /dev/cdrom/cdrom1 /cd1
Both com1 and /dev/lp expect hardware flow control
The scologin screen has changed:
OpenServer = screen 2 but UnixWare = screen 1
Note that UnixWare also has a console text screen - access with CTRL + ALT + ESC
The naming for serial devices has changed in two ways: not only have them been moved from /dev to /dev/term but the convention relating to UPPER and lower cases names has also changed:
|Digi - Modem||/dev/ttyA01||/dev/term/a02m|
The enable/disable command has been replaced by scoadmin -> serial manager
boot single user
press <C/R> when UnixWare banner shows at start ? for help
To enter single user mode initstate=1 boot
b hd(0,DOS) will boot a different partition (like the bootos command)
|bourne shell||-e option (testing file exists) no longer exists|
|cbackup||Doesn't exist - use cpio or arcserve|
|compress||The -H option isn't supported|
|cpio -A||to drop leading slash doesn't exist|
|cpuonoff||scoadmin >-> hardware -> processor manager -> click on/off|
|diskcp||Doesn't exist - use dd and then sum|
|dos commands||install mtools from skunkware|
|find||-level option doesn't exist|
|hosts||This host should be fully stated as name.domain|
|init 1||OpenServer umounts filesystems - UnixWare leaves them mounted|
|ls -A||OpenServer = all .files first UnixWare = sometimes alphabetical|
|man||UnixWare pages don't have examples|
|mkdev hd||diskadd with care|
|mkdev tape||No longer needed - UnixWare allocates /dev/rmt and /dev/rct devices in ascending scsi i/d order|
|mpstat||doesn't exist: use sar -P ALL to see activity per processor|
|or rtpm for amazing display|
|nfs stop||sh /etc/init.d/nfs stop|
|password||If you want to skip a password ("removed" password under OS5) for an existing user, edit /etc/default/login PASSREQ to NO and do passwd -d <username> afterwards|
|ping||Defaults to a single packet: use -s option to repeat every second|
|pwd||sometimes shows symbolic link rather than actual path|
|rcmd||see SCO notes|
|root&boot floppies||/sbin/emergency_disk diskette1|
|scologin||graphical interface was on virtual screen 2, now virtual screen 1|
|shutdown||You have to be in / directory to run this command|
|UnixWare -g (grace) default option settable in /etc/default/shutdown|
|syslog||/var/adm/log/osmlog (or see page 1 for other log files)|
|tape unload||tapecntl -u|
|/tmp||UnixWare often has a seperate filesystem|
|UnixWare clears out contents upon booting|
|u386mon||rtpm (Real Time Performance Monitor)|
|uname||OpenServer = SCO_SV UnixWare = UnixWare|
|uname -S||You need to edit /etc/hosts and reboot|
|undelete||no longer exists|
|userdef||/etc/rc2.d needs to have a capital "S" for it to be run|
|wc||Display uses spaces instead of tabs|
|who -x||w (shows IP of remote Ethernet users)|
Large File Support (ie > 2Gb)
To create large files, login as root and then...
fsadm -Fvxfs -o largefiles /filesystem-name
./idtune -g HFSZLIM and observe four figures SFSZLIM ditto
./idtune HFSZLIM 0x7FFFFFFF seven lots of F SFSZLIM 0x7FFFFFFF
ulimit -Hf Should show the word unlimited ulimit -Sf Ditto
To export filesystems that allows full read/write access
scoadmin -> filesystem -> view -> export each filesystem and share -F nfs -o root=system1:system2:system3 /filesystem
The demo version doesn't work on vxfs filesystems - possible solution is to change ted to copy the file to /tmp edit the file and copy it back again
Assuming that the utilities have been installed... On console screen 1 (X Windows) click on terminal /opt/RaidMan/RaidMan.sh - note mixed case in path/program name
For example, allow user fred to run pkgrm
# /bin/adminuser -a pkgrm:/usr/sbin/pkgrm:allprivs fred
Then, as user 'fred' run:
$ /sbin/tfadmin /usr/sbin/pkgrm <package_name>
Use pkgadd / pkgrm for most third party packages
scoadmin -> software -> application installation for all SCO software
Tune I/O bufs
Although this is an autotune variable, you can overrule it.
# /etc/conf/bin/idtune -f BUFHWM <new value>
relink the kernel and reboot. The new value will appear in the stune file and you can check the value has changed by looking at the output from "sysdef -i" or use crash and type "var". To reset the autotuned value you can use "idtune -d BUFHWM".
You get an error message if you delete a user account and then try to recreate it in less than four years. However this command will add testuser with a uic of 201 after he/she has just been deleted.
useradd -u 201 -i -d /home/testuser -m testuser
Best New Features?
Among the UnixWare features missing from OpenServer.
The "help" system that allows on-line searching of on-line manuals
System kernel tuning description per entry
Support for DB2 Version 5.2
Support for files greater than 2Gb
SCO say better scalability with multiprocessor system
Support for fault tolerant Ethernets card with auto failover
Support for IP alias
Support for Linux as a sort of Run Time System which allows all Linux utilities, such as Start Office and Apache Server etc to run under UnixWare.
What happened to
integrity and fixmog
scoadmin -> system -> check all is well feature
Original 21st May 2001 Last update 11th February 2002
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