Best of Technical Support
I am new to the Linux world and have what I think is a fairly simple question. I would like to know how to get information from a CD using the X Window System. Can you help me with this? —Anthony, DrexelDG@aol.com
First, mount your CD-ROM using the command mount /cdrom if /etc/fstab is properly configured. Otherwise, as root use mount /dev/hdb /cdrom. Your distribution probably offers some graphic tools to help with the task; remember man mount is your friend. —Alessandro Rubini, email@example.com
First, in an xterm, log in as root (su -root and type in the root password when prompted). Then, create a directory where the CD will appear to be:
Next, insert the CD and mount it on the directory you created:
mount -t iso9660 -o ro /dev/hdd /mnt/cdromThen, you should be able to cd to /mnt/cdrom and use the files on the CD. When you're done, the command
umount /mnt/cdromwill tell Linux to “let go” of the CD so you can eject it and work on another. —Scott Maxwell, firstname.lastname@example.org
When LILO starts to boot Linux, I get an error message saying, “BIOS32 extension does not exist. Sorry, this release still depends on it!” I am unable to boot Linux because of this. What should I do? —Mark, email@example.com
LILO must be installed on your MBR (Master Boot Record), on a floppy disk or the first sector of your Linux partition. If you have an IDE drive, it must be located before the 540MB limit; if you have a SCSI drive, it must be lower than cylinder 1024. Is your LILO installed in the proper location? —Daniel Lafraia, firstname.lastname@example.org
This message is printed by a SCSI driver which is compiled in your default kernel and is benign as you don't have that SCSI controller. Most drivers don't print any message when they fail detecting the hardware; in my opinion, this is good. It looks as if your kernel is locking when probing for some other hardware, but I can't tell which one. You should try to remove any strange ISA device installed in your system, then compile your own kernel, leaving out everything of no interest to you.
Note that most modern distributions use modules for each device driver in order to avoid probing for uninstalled peripherals. —Alessandro Rubini, email@example.com
At what speed is my modem connecting? I have REPORT CONNECT in my chat script, but it always indicates I am connected at 57600. How do I query the modem or pppd to find out the speed at which I am actually connected? —James M. Pothering, firstname.lastname@example.org
You need to make a change in your modem settings. Consult your modem's manual to learn which string to send, then use a terminal program such as minicom to instruct your modem to return the modem-to-remote (DCE) speed, not the computer-to-modem (DTE) speed. For example, for my modem I would type ATW2&W. This turns on “Report connection rate only as CONNECT XXXX” (W2) and saves the settings for the next use (&W). —Chad Robinson, email@example.com
I've upgraded to glibc 2.1, but certain older applications (StarOffice in particular) don't want to run now. How do I either convince StarOffice to like the new glibc, or else keep the old 2.0.7 installed just for StarOffice's use? —Tim Pepper, firstname.lastname@example.org
Here's a shot in the dark... Instead of executing “soffice” by itself to start StarOffice, execute the following:
Be sure to have the 2.0.7 libraries in a directory separate from all the rest of your system libraries (they typically reside in /lib). The command above should make StarOffice look for shared libraries in the LD_LIBRARY_PATH first before moving on to look elsewhere. Note that you do not want this particular LD_LIBRARY_PATH variable to be permanent; you just want to execute it when you start StarOffice. (Of course, replace /glibc_libraries_path with the actual path to your glibc 2.0.7 libraries.) —Erik Ratcliffe, email@example.com
You can influence how any application searches for shared libraries by setting the LD_LIBRARY_PATH environment variable (don't forget to use export LD_LIBRARY_PATH=..., so the environment variable's value will be visible to applications you run). The value of this variable should be a colon-separated list of directories to be searched before the usual locations.
Writing a simple shell script will make life simpler. Do something like this:
#!/bin/bash export LD_LIBRARY_PATH=/path_old_glibc/ exec soffice
If necessary, you can also force the issue with LD_PRELOAD:
#!/bin/bash export LD_PRELOAD=/path_old_libc.so exec soffice—Scott Maxwell, firstname.lastname@example.org
- Free Today: September Issue of Linux Journal (Retail value: $5.99)
- The Tiny Internet Project, Part I
- Bitcoin on Amazon! Sort of...
- Android Browser Security--What You Haven't Been Told
- Download "Linux Management with Red Hat Satellite: Measuring Business Impact and ROI"
- Returning Values from Bash Functions
- Nativ Disc
- Epiq Solutions' Sidekiq M.2
- Securing the Programmer
Pick up any e-commerce web or mobile app today, and you’ll be holding a mashup of interconnected applications and services from a variety of different providers. For instance, when you connect to Amazon’s e-commerce app, cookies, tags and pixels that are monitored by solutions like Exact Target, BazaarVoice, Bing, Shopzilla, Liveramp and Google Tag Manager track every action you take. You’re presented with special offers and coupons based on your viewing and buying patterns. If you find something you want for your birthday, a third party manages your wish list, which you can share through multiple social- media outlets or email to a friend. When you select something to buy, you find yourself presented with similar items as kind suggestions. And when you finally check out, you’re offered the ability to pay with promo codes, gifts cards, PayPal or a variety of credit cards.Get the Guide