Just ran across this, could be useful.
From http://blog.laimbock.com/2009/08/08/disable-pcpskr-module-on-fedora/
echo "blacklist pcspkr" > /etc/modprobe.d/pcspkr.conf rmmod pcspkr
Aug 142010
Jul 272010
How to get a Soundbridge M1000 to work with squeezecenter:
Jul 152010
To set up server and search entries in /etc/resolv.conf,
use settings like these in /etc/sysconfig/network-scripts/ifcfg-eth0:
DNS1=192.168.1.1 DNS2=192.168.1.2 DOMAIN="sub.mydomain.com mydomain.com"
Jun 072010
Here is the right way to install Sun Java 6 on Fedora.
This method handles the alternatives system, and makes rpm packages
so upgrading is easy:
Another, older version of this approach I used to use:
Nov 122009
If you are editing with vi, you can enter Unicode characters with the sequence:
Ctrl-V u xxxx
where xxxx is the 4-digit hex code.
See http://en.wikibooks.org/wiki/Unicode/Character_reference/0000-0FFF
for a code chart.
Apr 292008
Here is how to change the fonts used in the UI for Thunderbird and Firefox.
See:
- http://www.mozilla.org/support/thunderbird/edit
- http://kb.mozillazine.org/Font_settings_in_Thunderbird
- http://kb.mozillazine.org/Pane_and_menu_fonts
- http://eriwen.com/css/tweaking-thunderbirds-chrome/
Create a userChrome.css file:
- in Thunderbird, create in ~/.thunderbird/<profile>/chrome/
- in Firefox, create in ~/.mozilla/firefox/<profile>/chrome/
You may need to create the chrome directory in Thunderbird.
Example contents are at urls above. e.g. to set the global font size:
/* set default namespace to XUL */
@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
/*
* Set all the default font sizes:
*/
* {
font-size: 11pt !important;
}
Oct 042007
Here is a konqueror servicemenu item that lets you
run kompare on selected files.
Put this code into ~/.kde/share/apps/konqueror/servicemenus/kompare.desktop:
[Desktop Entry] ServiceTypes=all/all Actions=kompare [Desktop Action kompare] Name=Kompare Files Icon=kompare Exec=kompare -caption "%c" %i -c %U
As a refinement, it would be nice to only show this if two files are selected.
Jun 012007
A system board 10-pin header connector IDC10 looks like this:
9 1 +---- ----+ | o o o o o | | o o o o o | +-----------+ 10 2
The two cable versions are DTK and AT/Everex/Intel
Here is a good post with ascii art:
http://hardware.mcse.ms/message235718-2.html
And one source of the DB-9 serial pinouts:
http://www.aggsoft.com/rs232-pinout-cable/serial-port-db9.htm
With the DTK assembly, the ribbon cable on either end should
come out the "side" of the connector (that is how cables
made with IDT method work).
With the Intel/Everex assembly, and the need to solder the wires to
the DB-9, it is possible the wire on the DB-9 will come out the end
of the assembly.
DTK Cable
DTK (xover) — pins "cross over": alternating top-to-bottom on the DB-9
| DB-9 | IDC-10 | Signal |
|---|---|---|
| Pin 1 | Pin 1 | CD |
| Pin 2 | Pin 3 | RxD |
| Pin 3 | Pin 5 | TxD |
| Pin 4 | Pin 7 | DTR |
| Pin 5 | Pin 9 | GND |
| Pin 6 | Pin 2 | DSR |
| Pin 7 | Pin 4 | RTS |
| Pin 8 | Pin 6 | CTS |
| Pin 9 | Pin 8 | RI |
The header pinouts needing DTK look like this:
Serial Port Pin Definitions
(COM1, COM2)
Pin Number Definition Pin Number Definition
1 DCD 6 CTS
2 DSR 7 DTR
3 Serial In 8 RI
4 RTS 9 Ground
5 Serial Out 10 NC
Intel Cable
Intel (sthru) — pins are "straight through": 1-1, 2-2, …, 9-9
| DB-9 | IDC-10 | Signal |
|---|---|---|
| Pin 1 | Pin 1 | CD |
| Pin 2 | Pin 2 | RxD |
| Pin 3 | Pin 3 | TxD |
| Pin 4 | Pin 4 | DTR |
| Pin 5 | Pin 5 | GND |
| Pin 6 | Pin 6 | DSR |
| Pin 7 | Pin 7 | RTS |
| Pin 8 | Pin 8 | CTS |
| Pin 9 | Pin 9 | RI |
The header pinouts needing Intel look like this:
Serial Port Pin Definitions
(COM1/COM2)
Pin # Definition Pin # Definition
1 CD 6 DSR
2 RD 7 RTS
3 TD 8 CTS
4 DTR 9 RI
5 Ground 10 NC
Apr 102007
You can tell the kernel to reboot a Linux system without access to a filesystem (e.g. a frozen RAID controller) or the usual commands.
First saw this at:
http://blog.air4web.com/linux-force-reboot.html
Force hard reboot (no shutdown runlevel, no sync):
echo 1 > /proc/sys/kernel/sysrq ; echo b > /proc/sysrq-trigger
Force shutdown:
echo 1 > /proc/sys/kernel/sysrq ; echo o > /proc/sysrq-trigger
Nov 252006
Installing Type1 fonts:
cd /usr/share/fonts/Type1
cp *.{afm,pfb} .
/usr/local/bin/type1inst
/etc/rc.d/init.d/xfs reload
From the type1inst README:
type1inst lives on the Linux archive sunsite.unc.edu in
/pub/Linux/X11/xutils. Updates will be placed there as required.
Monospaced Fonts in Adobe Font Folio:
Courier *really nice*
Adobe Type Basics Fonts/{cob,cobo,com,coo}*
Letter Gothic
Adobe Font Folio Fonts/Letter Gothic/*
Lucida Sans Typewriter *really nice*
Adobe Font Folio Fonts/Lucida Sans Typewriter/*
Lucida Typewriter *really nice*
Adobe Font Folio Fonts/Lucida Typewriter/*
OCR
Adobe Font Folio Fonts/OCRA, OCRB, MICR/
Orator
Adobe Font Folio Fonts/Orator/
Prestige Elite
Adobe Font Folio Fonts/Prestige Elite/