Best of Technical Support
I have tried unsuccessfully to install Linux 6.1. Here's what happens:
I put in the CD and the boot disk. The Linux program decompresses all the “running/sbin/loader”. Then it waits a few minutes and says:
"install exited abnormally -- received signal 7" sending termination signals.
I have asked everyone I know what “signal 7” means, but to no avail.
—Michael C. Fields, email@example.com
Signal 7 is “bus error”, as reported by /usr/include/asm/signal.h (included by /usr/include/signal.h, the first place to look). This is most likely a hardware problem on your box, similar to the “signal 11” (segmentation fault) problem. Please refer to the sig11 FAQ at http://www.bitwizard.nl/. —Alessandro Rubini, firstname.lastname@example.org
You fail to mention which distribution you are trying to install, but luckily, my crystal ball is telling me that it would be Red Hat, or a derivative thereof. Signal 7 is SIGBUS, which means that there are some hardware/driver issues. I'd try a newer version of Red Hat or a different distribution in case a different kernel helps on your machine. —Marc Merlin, email@example.com
I have been asked by my company to write some code to write to and read from a special printer. As an example, if I shove the string “^[I” out the parallel port, I should be able to read back in “TP96”. However, I am as new as they come. I have been looking at all the parport documentation, but I don't understand. Is parport already part of the kernel? Do I #include parport in my own program? How do I put all the pieces together to get this one seemingly simple task accomplished?
—Michael J. Conroy, firstname.lastname@example.org
Two web sites may help you. The first contains general parallel port programming information: www.lvr.com/parport.htm. The second contains information on I/O port programming under Linux: metalab.unc.edu/mdw/HOWTO/mini/IO-Port-Programming.html. —Chad Robinson, Chad.Robinson@brt.com
If you want to know more about parport, take a look at the file Documentation/parport.txt in the kernel sources hierarchy. For your personal use, you should use low-level inb/outb functions (try man outb). There is an excellent (of course :-)) article by Alessandro Rubini in LJ #47 about using parallel port. —Pierre Ficheux, email@example.com
Yes, it's a compile time option.
moremagic:~# cat /proc/parport/0/hardware base: 0x378 irq: none dma: none modes: SPP,ECP,ECPEPP,ECPPS2 moremagic:~# cat /proc/parport/0/autoprobe MODEL:Unknown device; MANUFACTURER:Unknown vendor;
I've never done parallel port programming, but you can write to /dev/lp0 (or lp1, lp2...) and you may be able to read back from it. One thing you can do for more information is look at the source code from lpd. —Marc Merlin, firstname.lastname@example.org
Can Linux be installed on an Athlon platform? —Mark MacWilliam, mMacWilliam@infocell.com
Because the Athlon processor has the same instruction set (with enhancements) as the x86 processor series, Linux should run on it without problems. —Chad Robinson, Chad.Robinson@brt.com
Yes. The 2.2.14 kernel (or better) recognizes the Athlon, and 2.3.x (soon to be 2.4) has optimized support for the Athlon. —Marc Merlin, email@example.com
I am typing this reply using my brand-new 700MHz Athlon system (running Linux, of course!). So not only can Linux be installed on an Athlon, I can add that it runs like a dream. —Scott Maxwell, maxwell@ScottMaxwell.org
I am having problems installing Caldera OpenLinux 2.3 on a PC Pentium III 450, with a SIS 620 video card and operating under Windows 98. I succeeded in making the partition on the disk for where to install OpenLinux, but when trying to install it, first it appears on the screen where the recognition of the hardware of the machine is made, and then the screen becomes frozen after showing vertical gray lines. I don't know what the problem could be. Would you help me?
—Susana Diaz, firstname.lastname@example.org
The SiS 620 chipset is supported by the SVGA server, but for whatever reason, it will not run in 16-color VGA mode (which is what OpenLinux's graphic installer uses). What you'll need to do is use the character-mode installation, then run either lizardx, XF86Setup or xf86config after the installation is done to configure the X Window System. The disk images for the character-mode installation are found in the /col/launch/lisa/floppy directory. Use RAWRITE (in DOS/Windows) or dd (in UNIX/Linux) to transfer the install.144 image to a formatted 1.44MB diskette. Use the new diskette to launch the installation. —Erik Ratcliffe, email@example.com
Many on-line help resources are available on the SSC web pages. Sunsite mirror sites, FAQs and HOWTOs can all be found at http://www.linuxjournal.com/.
Webinar: 8 Signs You’re Beyond Cron
11am CDT, April 29th
Join Linux Journal and Pat Cameron, Director of Automation Technology at HelpSystems, as they discuss the eight primary advantages of moving beyond cron job scheduling. In this webinar, you’ll learn about integrating cron with an enterprise scheduler.Join us!
|Play for Me, Jarvis||Apr 16, 2015|
|Drupageddon: SQL Injection, Database Abstraction and Hundreds of Thousands of Web Sites||Apr 15, 2015|
|Non-Linux FOSS: .NET?||Apr 13, 2015|
|Designing Foils with XFLR5||Apr 08, 2015|
|diff -u: What's New in Kernel Development||Apr 07, 2015|
- Drupageddon: SQL Injection, Database Abstraction and Hundreds of Thousands of Web Sites
- Play for Me, Jarvis
- Non-Linux FOSS: .NET?
- Designing Foils with XFLR5
- Not So Dynamic Updates
- Flexible Access Control with Squid Proxy
- Users, Permissions and Multitenant Sites
- New Products
- diff -u: What's New in Kernel Development