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583 discussions

Trouble with permissions on /dev/parport

by Jean-Jacques Mouris

Hello, I try to operate an old scanner on the parallel port for some small tasks. I need to give rw permissions on /dev/parport0 for everyone, which I achieved by changing the appropriate line in file /etc/udev/static_devices.txt from parport0 c 99 0 660 to parport0 c 99 0 666 After reboot, the device had the permissions as expected: ls -l /dev/parport* crw-rw-rw- 1 root root 99, 0 2006-03-09 15:30 /dev/parport0 crw-rw-rw- 1 root root 99, 1 2006-03-09 15:30 /dev/parport1 crw-rw-rw- 1 root root 99, 2 2006-03-09 15:30 /dev/parport2 crw-rw-rw- 1 root root 99, 3 2006-03-09 15:30 /dev/parport3 However, starting xsane failed (with error-message "No devices detected"). Checking again the permissions on /dev/parport returned: crw-rw---- 1 root root 99, 0 2006-03-09 15:30 /dev/parport0 crw-rw-rw- 1 root root 99, 1 2006-03-09 15:30 /dev/parport1 crw-rw-rw- 1 root root 99, 2 2006-03-09 15:30 /dev/parport2 crw-rw-rw- 1 root root 99, 3 2006-03-09 15:30 /dev/parport3 The rw-permissions on parport0 have disappeared for everyone !! chmod 666 /dev/parport0 brings back the permissions, which allows me this time to start xsane and to operate the scanner. Does anybody have an idea why xsane changes the permissions on /dev/parport0 and , even more important, how to make it permanent? Btw., commands like SANE_DEBUG_MUSTEK_PP=128 scanimage -L also change the permissions, so I guess that it's scanimage or sane-find-scanner that affect the permissions when xsane uses them while probing for scanners. Thanks for your input. JJ Mouris

20 years, 2 months

Wanted: success stories of commercial companies migrating to OOo

by Eric Dondelinger

Hi, subject says it all: do you know of commercial companies (not administrations or public services) that have successfully migrated to OpenOffice (or possibly StarOffice)? Pointers are welcome... Greetings & TIA, Eric

20 years, 2 months

Notes .nsf to mbox?

by Eric Dondelinger

Hi, @work, I have to work with (insert as many expletives as you like) Lotus Notes. Now, I'm wondering how to convert existing .nsf files to something a little bit more standard, like, say, mbox? This of course including such unimportant things like attachments. There's an export function in the Notes client that will generate something close enough to mbox, but without attachments - thus not usable. I'd love to be able to get the task done without going through the server, connecting through IMAP using a decent client etc, and what's more, on a Linux box... I've googled a bit, but the result so far has been very disappointing. Does anyone know any means to get this done? Greetings & TIA, Eric

20 years, 2 months

Course / Certification

by Eric Dondelinger

Hi, I was asked about courses giving both a good background (i.e. actual working know-how) with Linux system administration, and which also might lead to a certification (buzzword-sensitive employer compliant). Can anyone recommend something there? Greetings, Eric P.S. Yes, there was a presentation on LPI at the LinuxDays, but I missed it due to "other activities"... btw. the open source beer is bottled by now - only about 8-10 days left to testing ;-)

20 years, 2 months

Interesting Article

by Mike Pressel

There is an interesting article in Frankfurter Allgemein today about the maturity of Linux. It is a rather simplistic view of Linux, written for non-techies, and everyone on this list probably knows the story in more depth than the article goes into. But, the interesting part to me is that a main stream conservative paper like FAZ has picked up on the story and painted a very positive picture of Linux and FOSS. See link below: http://www.faz.net/s/Rub4C34FD0B1A7E46B88B0653D6358499FF/Doc~ECCEE5736A6254… Regards Mike

20 years, 2 months

LiLux Meeting next week (March 2nd 20h00) at the LGL: Samba

by Alain Knaff

At the next meeting, I'll do a rerun of my Samba presentation that I gave at the LinuxDays. The main focus will be the more advanced topics (primary domain controller, print server setup) that I had to skip at the Linux Days. Alain

20 years, 2 months

software raid problem

by Yves Glodt

Hi folks, I set up software-raid1 for /, /usr, /tmp, /home and /var on a box with 2 sata-disks. I use debian sarge with the 2.6.8-2-k7-smp kernel. Everything works fine as long as I leave the 2 disks in the box, but as soon as I remove one of them, the arrays don't get started at all, or get assembled wrongly... (read on) I've tried with and without a (correct) /etc/mdadm/mdadm.conf file. Without, the arrays get assembled, but wrongly, that is, e.g /tmp holds the content of /usr (all other mountpoints are messed up as well except /, which is /dev/md0, is always ok.) (Note that I pass the kernel all the info it should need, like: vmlinux root=/dev/md0 md=0,/dev/sda1,/dev/sdb1 md=1,/dev/sda8,/dev/sdb8 etc) With the mdadm.conf file, the arrays dont get started at all because the md driver says one disk is missing... so I find myself without any of /usr /var /tmp and /home. Is there a parameter I can put into the mdadm.conf to make it less picky let it start the md device even if one disk is missing? (I've seen that by manually using mdadm afterwards with the right commandline options this is possible, but I need it at boot... automagically) Any ideas? Best regards, Yves p.s. How is your experience in using linux software raid in production? There is unfortunately no driver available for my raid chipset, so I have to use the md way. (anyway my sata-chipset can only provide fakeraid, so IMHO the md way is preferred... any opinions on that?) -- Linux 2.6.15 #2 SMP PREEMPT Tue Jan 3 21:35:02 CET 2006 i686 23:20:55 up 2:39, 0 users, load average: 0.33, 0.28, 0.36

20 years, 2 months

WiFi laptop on/off button

by Eric Dondelinger

Hi guys & girls, problem: HP Laptop with IPW2200 WiFi card and special button to switch the WiFi on or off, system is Ubuntu 5.10 The card itself is recognized (no suprise there), but the damn thing is turned off, pressing the button won't turn it on either (/sys/bus/pci/drivers/ipw2200/*/rf_kill stays at the same value). Unfortunately, it's not possible to just echo 0 > .../rf_kill to turn the thing on (permission denied even for root on that HP, here on my box - where the button works - it was allowed but had no effect). iwconfig power seems to be only for managing the powersave-states, not to turn the thing on or off. Googling didn't really help so far, I checked the ipw2100.sf.net, ipw2200.sf.net and rfswitch.sf.net pages. Any ideas? Greetings & TIA, Eric

20 years, 3 months

OOo

by Alex

Hi Is it possible in Ooo to create a document where you get data from a database and also data from the next database entry on the same page. Here, I have up to six little flyers with names, I have the database with the names, but mail merge always produuces different documents for each entry. My question is how to create a document with up to six different database records on the same document? -- Thanx Al

20 years, 3 months

Webcam

by Alex.Loes＠lll.lu

Hi I would buy a webcam to mount on a telescope. I found different sources in Google about the Philips PCVC740K on a telescope. This one seems right good, because lumonisity min.<1 lux. So, the difficulty is I don't find a dealer for it. I also found a Philips SPC900NC, but I don't know if this one works with Linux. Is there anybody out there who knows if these one is compatible with Linux or does someone know a Webcam where the lumonisity needed <1 lux. Thanks Al ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.

20 years, 3 months

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