From: Digestifier To: Linux-Admin@senator-bedfellow.mit.edu Reply-To: Linux-Admin@senator-bedfellow.mit.edu Date: Fri, 7 Oct 94 11:13:36 EDT Subject: Linux-Admin Digest #156 Linux-Admin Digest #156, Volume #2 Fri, 7 Oct 94 11:13:36 EDT Contents: Re: Linux NOT logging people out on hangup (Michael Faurot) Re: A couple simple questions (Geoff Kuchera) Re: Ftape works...Not yet (Ike Brenner) Re: 16-user dial-up Linux? (Steve DuChene) Anyone using multiport boards? Such as digiboard or BOCA? (Jerry Hobby) Best SCSI-II and 8mm tape (Mark Grennan) Re: LILO & BusLogic 445s (Stephen Carrier) Re: No Hostname (Sander Tiel) Re: IDE/EIDE drive >528M?? (Phil Howard) Re: SCSI vs IDE (Mark 'Enry' Komarinski) Not able to record sound! (Lam Hong) Re: SCSI vs IDE (Christopher D Dukes) Re: SCSI vs IDE (Panzer Boy) Re: Ftape works...Not yet (Peter Dalgaard SFE) Zmodem errors at 38400 w/16C550 (Peter Berger) Re: Hard Drive "sleep" program?? (Tom Czarnik) ---------------------------------------------------------------------------- From: mfaurot@phzzzt.atww.org (Michael Faurot) Subject: Re: Linux NOT logging people out on hangup Date: Wed, 5 Oct 1994 20:50:15 GMT Rocco Caputo (troc@loreli.ftl.fl.us) wrote: : So lots of multi-user admins wind up working around this POSIX "feature" : by writing daemons to kill the processes that Linux doesn't. So, has anyone made a distributable version of this type of daemon and posted it on an FTP site somewhere? If so, filenames and sites would be much appreciated. Thanks. -- +--------------------+----------------------------+--------------------------+ | Michael Faurot | mfaurot@phzzzt.atww.org | I don't like | | ------- ------ | ...!netcomsv!phzzzt!mfaurot| lima beans!! | +--------------------+--------------------+-------+--------------------------+ ------------------------------ From: geoff@jacobs.mn.org (Geoff Kuchera) Crossposted-To: comp.os.linux.help Subject: Re: A couple simple questions Date: 4 Oct 1994 03:31:18 GMT Geoff Kuchera (geoff@jacobs.mn.org) wrote: : In article , Nathan Dwyer wrote: : >Hi. : > : >I'm just getting into Linux, and liking it a whole lot. I just have a few : >problems so far I was wondering if anyone could help me with. : > : >I printed once. No CR. I tried changing some of the printcap around, no : >luck. I changed it back. Now, when I lpd something, all I get are blank : >pages. I'm currently using the generic printer entry. I have a Laserjet : >4ML. : I have a HP4M and I just use the following entry in printcap... : lp:lp=/dev/lp1:sd=/usr/spool/lp1:sh:if=/usr/lib/lpf:mx=0 : The only other thing is a small script /usr/lib/lpf : #! /bin/bash : if [ "$1" = -c ]; then : cat : else : sed -e s/$/ ^^^This line chould have a ctrl-M after the last slash.. Sorry for following up on my own article but I thought it a good idea. : fi : echo -ne \\f : All this script does is convert the lf to cr/lf.. : This script works fine on all printers.. Although i don't think it will handle : binary files too well.. ie. PCL5... : This is nothing special.. It's taken right out of the printing howto.. : Enjoy. : ------------------------------------------------------------------------------- : Geoff Kuchera Internet: geoff@abu.mn.org : 421 Van Buren Ave North #226 Tele: +1 612 945-9842 : Hopkins, MN 55343 : ------------------------------------------------------------------------------- -- =============================================================================== Geoff Kuchera ( Internet: geoff@abu.mn.org ) 421 Van Buren Ave North #226 ( Tele: +1 612 945-9842 ) Hopkins, MN 55343 ( ) ( ) ) ) ) ) ) ) ) ) & ( ) ) ) ) ***** ( ) ) /***********\ /***\ ****************\ /******/ * **************************/ \***/ ********************/ ********* ************* =============================================================================== ------------------------------ From: ike@gdb.org (Ike Brenner) Subject: Re: Ftape works...Not yet Reply-To: ike@gdb.org Date: Thu, 6 Oct 1994 18:15:28 GMT In article 32836@cobra.uni.edu, williamj@cs.uni.edu ( Jonathan Williams ) writes: > > Well, I thought I had ftape working, but I guess I was wrong. I'm running > Linux kernel version 1.0.9 and ftape version 1.13b patched for the conner bug > and compiled with the -DCONNER_BUG flag. > > When I finally got done compiling, I used tar to backup my drive. It went > through several hundred files, and then suddenly stopped with an I/O error > writing to the device. > > I'm assuming that its a bad sector on the tape, since I was able to verify > everything up to that point, but how do I confirm this and mark the sector as > bad so I can continue? > > Jon Williams > University of Northern Iowa I've had almost the exact same problems (sorry no fix yet). I have noticed in the message file (/var/adm/messages) that ftape finally chokes when it gets an error trying to write to the header. I think this is occurring after successfully updating the header numerous times since I have a flood of the same previous "error sector #/ reposition") messagesjust before it finally chokes. Anyone got ideas on this? Ike --- ================================================================= Ike Brenner Email: ike@gdb.org Genome Data Base Tel: (410) 614-0440 Johns Hopkins School of Medicine Fax: (410) 614-0434 2024 E. Monument St. Baltimore, Md. 21205 ================================================================= ------------------------------ From: s0017210@unix1.cc.ysu.edu (Steve DuChene) Subject: Re: 16-user dial-up Linux? Date: 7 Oct 1994 08:45:29 -0400 Supposably there are going to be some Digiboard card drivers soon. You might want to check with them also for multi-port cards to run with Linux. -- | Steven A. DuChene sduchene@cis.ysu.edu or s0017210@cc.ysu.edu | Youngstown State University | Computer Science / Math / Mech. Eng. |------------------------------------------------------------------- | Friends don't let friends do DOS ------------------------------ From: jhobby@Starbase.NeoSoft.COM (Jerry Hobby) Subject: Anyone using multiport boards? Such as digiboard or BOCA? Date: 6 Oct 1994 00:59:08 -0500 I would like to add a multiport i/o board (or two or three) and use Linux with 16 or more dial-up modems. It seems that the digiboard is not yet supported. Has anyone used the BOCA card? Or perhaps the BUS6, or even the AST Four-Port cards? If anyone has this working, how well does it all work when sixteen or more people are all doing file transfers and I am compiling AND using XWindows AND playing DOOM? Obviously, I am demonstrating a worst case scenario, but I just want to be sure that my system works well under stressful times. Also, would 16 meg of ram be sufficient? Or will I need to go higher? I will not be running shell accounts or applications. I will merely be an ftp site with some dialup access for local slip users. Any advice will be greatly appreciated. Thanks. -- Jerry Hobby - Houston, TX ========================= "I am not young enough to know everything." jhobby@.NeoSoft.com - J. M. Barrie 72142.1100@compuserve.com ------------------------------ From: markg@mhs.oklaosf.state.ok.us (Mark Grennan) Subject: Best SCSI-II and 8mm tape Date: 5 Oct 1994 21:35:48 GMT Who can tell me the best combination of SCSI-II and 8mm tape drive for Linux? -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Mark Grennan Work - 1-405 521-2780 Office Finger climb.oklaosf.state.ok.us for detailes and my public PGP key -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- WWW - http://www.oklaosf.state.ok.us/ (Test Site - Try Me) -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- ------------------------------ From: carrier@chabot.ced.berkeley.edu (Stephen Carrier) Crossposted-To: ucb.os.linux Subject: Re: LILO & BusLogic 445s Date: 6 Oct 1994 20:23:53 GMT In article <36hch4$4gk@agate.berkeley.edu> johnm@po.EECS.Berkeley.EDU (John D. Mitchell) writes: >The LILO docs says that this indicates that the first stage boot loader was >able to load the second stage loader but was unable to execute it. It >mentions that this is either a geometry problem or has been caused by >moving '/boot/boo.b' without running the map installer (whatever that means >:-). I had the same problem, and the immediate cause turned out to be that I was using the root diskette that is companion to the installation diskette, rather than the installation diskette itself. (MCC distribution). Perhaps you are not so lucky. Good luck. Stephen Carrier ------------------------------ From: Stiel@nowayout.knoware.nl (Sander Tiel) Subject: Re: No Hostname Date: Fri, 7 Oct 1994 00:31:43 GMT In article <36dg2q$o41@news1.shell> dwm@shell.portal.com (David - Morris) writes: >From: dwm@shell.portal.com (David - Morris) >Subject: Re: No Hostname >Date: 29 Sep 1994 04:33:30 GMT >cully@ritz.mordor.com (Robert J. Shmit) writes: >>David - Morris (dwm@shell.portal.com) wrote: >>: I have both /etc/HOSTNAME and /etc/hostname on my system and it >>: still can't remember the hostname between boots. I issue: >>: hostname gate >>: from root (gate is the hostname) when I start and that fixes things. I had the same problem till I edited my /etc/hosts and put my hostname behind the address for local loopback ////////////////////////////////////////////////////////////////////////// /// stiel@nowayout.knoware.nl /// /// /// ///Sander Tiel /// ///Breda Tel: 0031 - (0)76 - 419083 /// ///Holland Fax: 0031 - (0)76 - 419083,7 /// /// /// /// /// /// ...... and remember people, let's be careful outthere ..... /// ////////////////////////////////////////////////////////////////////////// ------------------------------ From: phil@zeus.fasttax.com (Phil Howard) Subject: Re: IDE/EIDE drive >528M?? Date: 6 Oct 1994 15:25:21 -0500 mike@strauss.udel.edu (Michael James Porter) writes: >Perhaps if you put the Linux root below 540MB, the rest of Linux above >540MB, and put DOS below 540MB, you could get it to work without using >the supplied drivers. I tried something like this, but I couldn't get >it to work. However, I later discovered that I was forgetting to set >the 'active partition flag'. By this time, I had already come up with >a better way that made sense on my system, so I didn't go back and >investigate. I think this limit is at 527,966,208 bytes. This is based on a maximum of 1023 cylinders (number of cylinders limited to a 10 bit field by BIOS), 63 sectors (number of sectors limited to a 6 bit field by BIOS), and 16 heads (although BIOS allows up to 255 in an 8-bit field, the field in the disk command structure is 4 bits). You may see 527MB stated by those who use 1,000,000 as the divider (it makes disks look bigger) or you may see 503.5MB by exactness nuts (like me) who use 1,048,576 as the divider. You may also see 512MB by those who miscalculated (unless there is some secret to getting 1024 cylinders and 64 heads out of the BIOS that I am not aware of). In any event, if the ENTIRETY of your DOS partition is below this limit, DOS will not need any special drivers. FDISK should be able to partition it OK as long as it does not try to actually do I/O to the partitions. Since BIOS is used to boot with, including booting from LILO, everything needed during boot must also be below the above limit. If your kernel image happens to get located below the limit in a full disk filesystem, it will probably load OK. If you update your kernel it may be relocated above and cause problems. If you want the biggest possible filesystem, one solution would be to make a small kernel image sized partition (leave enough room for future enhancements) which can either be booted from LILO or marked as the boot partition and booted directly. If you make it partition 1, do the fdisk in sectors (with the "u" command) and start it at sector 2 instead of 0. You will get warnings about cylinder boundary stuff... ignore them. Now when you change kernels you only need to use "dd" or even "cat" to copy the kernel image into that partition. BTW, while you are repartitioning, if you do stuff with floppies a lot, you may want to create a handy floppy sized partition (use sector mode in fdisk for this, too). If I am creating a bunch of floppies for stuff, it is faster to build the floppy image by mounting that partition as an MS-DOS one, putting in the files as needed, unmounting, and saving the image (as a file somewhere or direct to a floppy). I did this when I was downloading the latest Slackware. It made things go a lot faster. -- /***** Phil Howard KA9WGN *********** How about universal JOBS? **************\ * Unix/Internet/Sys Admin Let's de-Foley-ate congress in 94 * * CLR/Fast-Tax Don't let Annie get your gun! * \***** phil@fasttax.com ************* Just say NO to CIX extortion ***********/ ------------------------------ From: komarimf@craft.camp.clarkson.edu (Mark 'Enry' Komarinski) Subject: Re: SCSI vs IDE Date: 7 Oct 1994 12:39:20 GMT George R. Welch (george@leona.tamu.edu) wrote: : In article <36ss1f$b5v@newsflash.concordia.ca>, : Iain J. Bryson wrote: : >Hi. I am interested in hearing people advocating : >which is better, IDE or SCSI. : While we are wading through the wave of followups, how about : someone explaining the difference between all the SCSI. I have heard of : SCSI, SCSI-2, fast SCSI-2, wide SCSI, and AV-SCSI. What are all these? : Which is best? Which is worst? How do you tell which one you have? : Are any of them compatible with the others? Why is this not addressed : in the SCSI-Howto? SCSI: The original standard. Sort of. Not everything has thesame level of compatability..so it may say 'SCSI' but it may not work. SCSI-2: Much closer to a standard. It's reasonable to assume that something that says 'SCSI-2' on it will work with yr machine. fast SCSI-2: Transfers 15M/S? Faster bus. wise SCSI-2: Doubles the bus size, allowing faster transfers. (16bits?) AV-SCSI: Fine-tuned for use with multimedia where you need a consistent transfer rate. Most IDE and SCSI drives will need to 're-sync' the heads physically every now and then, resulting in a pause in the transfer. AV-SCSI drives don't need to do this. -- - Mark Komarinski - komarimf@craft.camp.clarkson.edu Ask me about linux, the least expensive PC UN*X you'll ever see. ------------------------------ From: cs_roger@ug.cs.ust.hk (Lam Hong) Subject: Not able to record sound! Date: Fri, 7 Oct 1994 05:27:37 GMT Hi all, I have just set up my linux system but I could not record sound with the sound blaster 16 ASP card. It's strange that playing sound files is perfectly good! could anyone figure out the problem(s). Thanks a lot! ____________________________________________________________________________ _ _ ._ _ _ _ ._ Lam Hong (__>__| (_)(_|(/_| cs_roger@ug.cs.ust.hk _| ------------------------------ From: cddukes@unity.ncsu.edu (Christopher D Dukes) Subject: Re: SCSI vs IDE Date: 5 Oct 1994 03:45:15 GMT In article <36t5bs$o38@taco.cc.ncsu.edu>, Greck Cannon wrote: >Iain J. Bryson (iain@ece.concordia.ca) wrote in message <<36ss1f$b5v@newsflash.concordia.ca>>: >> Hi. I am interested in hearing people advocating >> which is better, IDE or SCSI. One big advantage >> for SCSI would be more disks and CD-ROMS not >> taking up a slot... But it that worth the >> extra cost of a (good?) controller? How about >> speed? > >SCSI is the way to go. IDE doesn't do multi-tasking. SCSI host adapters >(typically) have some kind of mailboxing or something that makes them >much much much more suitable to a multi-tasking environment where multiple >processes will be hitting the disk simultaneously. Swapping, for example, >is much more transparent with SCSI... > You forgot another good reason to go with SCSI. The PReP compliant motherboards Motorola released today are supposed to have SCSI-II controllers on them. I smell a port in the air. I only have to pickup one tape drive to share between systems, and I can always use Intel linux for putting trial bootstraps and filesystems on harddisks. -- Chris 'The PakRat' Dukes. The telephone is a tool of the devil. cddukes@eos.ncsu.edu cdukes@nyx.cs.du.edu pakrat@vnet.ibm.com -- "...like dynamite fishing in a barrel..." cddukes@eos.ncsu.edu cdukes@nyx.cs.du.edu pakrat@vnet.ibm.com html://www2.ncsu.edu/eos/users/c/cddukes/mosaic/PakRat.html ------------------------------ From: panzer@dhp.com (Panzer Boy) Subject: Re: SCSI vs IDE Date: 4 Oct 1994 23:56:12 -0400 SCSI <-> IDE -- The battle never ends. In my experience, if all you want is a single machine, that isn't going to be doing much more than run DOS for you, and some unix stuff for just you, stick to IDE. IDE is fast and cheap, and works great in a single user environment. If you plan on running UNIX 24hr/7day, you should invest in SCSI. SCSI eats up less cpu bandwidth, and is faster to the user. SCSI is more "intelligent" then IDE in the sense that things can be offloaded to the controller as opposed to the main cpu. In the case of DOS this is pointless as DOS waits for everything to finish before letting you continue anyways, but in unix, it allows more efficent multitasking. So, if you plan on doing many multitasking things, then go with SCSI and a good controller, 1542 (or clone) for example. But if you just want more space to play with unix, and maybe do some stuff, stick with the cheaper IDE. Swapping on IDE is horrible on my machine. I have 32 megs of memory, so I get lots of buffers, when update writes the buffers every 30 seconds, I would get 2-3 seconds "freezes" while this was done, and the drive was written to. I suspect that this happens less if you have 8-16 megs of ram, or in my case, I switched to a scsi drive for swap, and things are much better. (BTW, I had a dedicated swap controller/drive, and I still had this problem.) s010dls@alpha.wright.edu wrote: : One more thing, if you do SCSI and end up having an IDE drive and a SCSI : drive, don't forget the LEDs. You probably have one LED on the case for : a hard drive and it's connected to the IDE card. The SCSI card will : have a connector too. You shouldn't connect them together (it'll burn : up the LED in time). I had to drill a new hole in the case, buy a 3V LED : from radio shack, beg for a connector from a computer store, and install : a new LED myself. Umm, I have three LED's on my computer, plus a panel for stupid speed. I have 3 drive controllers hooked up to the "HD, Turbo, and Power" LED's. I don't anyone who uses turbo for more than minor kicks, and if you can't tell you're computer is on, maybe you need your head examined. Of course, if you only have 1 led, this could be a problem. -- -Matt (panzer@dhp.com) "That which can never be enforced should not be prohibited." ------------------------------ From: pd@kubism.ku.dk (Peter Dalgaard SFE) Subject: Re: Ftape works...Not yet Date: 7 Oct 1994 12:27:04 GMT In <1994Oct6.181528.19246@news.gdb.org> ike@gdb.org (Ike Brenner) writes: >In article 32836@cobra.uni.edu, williamj@cs.uni.edu ( Jonathan Williams ) writes: >> >> When I finally got done compiling, I used tar to backup my drive. It went >> through several hundred files, and then suddenly stopped with an I/O error >> writing to the device. >> > I've had almost the exact same problems (sorry no fix yet). I have > noticed in the message file (/var/adm/messages) that ftape finally > chokes when it gets an error trying to write to the header. I think > this is occurring after successfully updating the header numerous > times since I have a flood of the same previous "error sector #/ > reposition") messagesjust before it finally chokes. Anyone got > ideas on this? >Ike Hmm. One of the previous versions had an end-of track problem. Essentially, it went looking for a sector that wasn't there and forgot to reset the FDC when it failed. I sent Bas a fix then (sometime back in jan/feb or thereabouts) but he replied that the problem had been fixed in another way. Perhaps it's crept in again? Forgot details, looking into it during the weekend. If it goes on at multiples of 160 (?) sectors, this is likely to be the cause. ANIDIOTICNEWSREADERISINSISTINGTHATIPUTMOREBYTESINTHANIQUOTE!!! ANIDIOTICNEWSREADERISINSISTINGTHATIPUTMOREBYTESINTHANIQUOTE!!! ANIDIOTICNEWSREADERISINSISTINGTHATIPUTMOREBYTESINTHANIQUOTE!!! ANIDIOTICNEWSREADERISINSISTINGTHATIPUTMOREBYTESINTHANIQUOTE!!! ANIDIOTICNEWSREADERISINSISTINGTHATIPUTMOREBYTESINTHANIQUOTE!!! ANIDIOTICNEWSREADERISINSISTINGTHATIPUTMOREBYTESINTHANIQUOTE!!! ANIDIOTICNEWSREADERISINSISTINGTHATIPUTMOREBYTESINTHANIQUOTE!!! ANIDIOTICNEWSREADERISINSISTINGTHATIPUTMOREBYTESINTHANIQUOTE!!! ANIDIOTICNEWSREADERISINSISTINGTHATIPUTMOREBYTESINTHANIQUOTE!!! ANIDIOTICNEWSREADERISINSISTINGTHATIPUTMOREBYTESINTHANIQUOTE!!! ANIDIOTICNEWSREADERISINSISTINGTHATIPUTMOREBYTESINTHANIQUOTE!!! ANIDIOTICNEWSREADERISINSISTINGTHATIPUTMOREBYTESINTHANIQUOTE!!! -- O_ ---- Peter Dalgaard c/ /' --- Dept. of Biostatistics ( ) \( ) -- University of Copenhagen ~~~~~~~~~~ - (pd@kubism.ku.dk) ------------------------------ Date: Thu, 06 Oct 1994 18:20:00 +0100 From: pit@p2.lxs.baboon.ch (Peter Berger) Subject: Zmodem errors at 38400 w/16C550 jimk@jimk.sys.hou.compaq.com (Jim M. Kam) wrote: > I bet what's happening is that you're using xon/xoff instead of > hardware handshaking. Easy enough to fix. Do the following > setserial /dev/cua0 spd_vhi ??? > (or whatever serial port you're using) This sets speed to 115Kbps. > I know. You have trouble getting it to work at 38.4Kbps. Bear with me. Doubts. My USR-DS 16.8 Fax supports 57600, I don't think it makes any sense to set the DTE rate higher. May you're using one of the new pieces which already support 115200.. bye, Peter e-mail: pit@lxs.baboon.ch ------------------------------ From: tomc@netmanage.com (Tom Czarnik) Subject: Re: Hard Drive "sleep" program?? Date: 4 Oct 1994 04:22:29 GMT In article <36n6jk$2ge4@yuma.ACNS.ColoState.EDU>, > drranu@lamar.ColoState.EDU (Emarit Ranu) says: > > > I have a linux box that can be idle up to 12 hours at a time. > I figure since the hard drive is not doing much, is there > a program that will shut off the hard drive until it is needed > again? A HD "starts" as soon as you turn on the computer or the actaul HD (if it's an external). There is no way to turn off the power unless you unplug the HD. > I realize if there is such a thing "bdflush" would demolish it's > purpose. If bdflush was changed to flush every hour or more, then > maybe this could take wear off the hard drives? HD are sometimes like cars, lemons do get into the market. But the majority of HD won't see their death for 5+ years of continuous use. HD don't really wear out, although the media may form defects. If the media can still function, the motor will be the first to die. Motor lifecycles range from a mean of 3.5 to 7 years. The worst thing for a HD is the fluctuation in platter tempature and shock. If your computer is always on and never violently shaken, it will live out its lifespan. ------------------------------ ** FOR YOUR REFERENCE ** The service address, to which questions about the list itself and requests to be added to or deleted from it should be directed, is: Internet: Linux-Admin-Request@NEWS-DIGESTS.MIT.EDU You can send mail to the entire list (and comp.os.linux.admin) via: Internet: Linux-Admin@NEWS-DIGESTS.MIT.EDU Linux may be obtained via one of these FTP sites: nic.funet.fi pub/OS/Linux tsx-11.mit.edu pub/linux sunsite.unc.edu pub/Linux End of Linux-Admin Digest ******************************