APLawrence.com -  Resources for Unix and Linux Systems, Bloggers and the self-employed

Unix (3.2v4.2) and ODT FAQ

Some material is very old and may be incorrect today

© December 2003 (various)

This article is from a FAQ concerning SCO operating systems. While some of the information may be applicable to any OS, or any Unix or Linux OS, it may be specific to SCO Xenix, Open There is lots of Linux, Mac OS X and general Unix info elsewhere on this site: Search this site is the best way to find anything.

My SCO Unix kernel locks up at boot time

This is not really a generic answer, but only deals with one particular type of lockup. If your machine locks up and the last thing on the screen was "xyzxinit", where xyzx is the name of the driver for a SCSI host adapter, you can disable the driver by booting with defbootstr disable=xyzx The kernel ships with drivers for a wide range of hardware. The xyzxinit routines are responsible for detecting and initializing a particular piece of hardware. If the machine hangs at this point, then one particular driver is clashing with something in your machine. If the driver is for a card you don't have, it should be safe to disable it as shown above. If the driver which is hanging runs a piece of hardware which you're trying to use, you need to do some further work to determine why it's clashing. This may involve adjusting jumpers or other configuration information on the card.

If you discover that you need to disable multiple drivers, separate their names with commas. For example, to disable spad and wdha, use defbootstr disable=spad,wdha.

If you found something useful today, please consider a small donation.

Got something to add? Send me email.

(OLDER)    <- More Stuff -> (NEWER)    (NEWEST)   

Printer Friendly Version

-> My machine locks up at boot time (SCO Unix)

Inexpensive and informative Apple related e-books:

Photos: A Take Control Crash Course

Digital Sharing Crash Course

Take Control of Apple Mail, Third Edition

Take Control of Pages

iOS 10: A Take Control Crash Course

Printer Friendly Version

Have you tried Searching this site?

This is a Unix/Linux resource website. It contains technical articles about Unix, Linux and general computing related subjects, opinion, news, help files, how-to's, tutorials and more.

Contact us

Printer Friendly Version

Lawyer — One who protects us against robbers by taking away the temptation. (H.L. Mencken)

Linux posts

Troubleshooting posts

This post tagged:



Unix/Linux Consultants

Skills Tests

Unix/Linux Book Reviews

My Unix/Linux Troubleshooting Book

This site runs on Linode