Sunday, April 30, 2006
Saturday, April 29, 2006
baudline
Found a great program for visualizing sound called Baudline (free as in beer): http://www.baudline.com. Got it installed on linux box and started playing around with it. Really nice graphics.
ntpdate ntp.org
Since we didn't spring for the real time clock as part of the SBC we need correct the date each time we reboot. The command is
$root> ntpdate ntp.org
The startup script /etc/init.d/ntpdate already existed. The links in the directory /etc/rcS.d get started during boot with the "start" command. The scripts are executed in order from S00 to S99. I used S51 so ntpdate will run after the hwclock scripts run (and fail).
root$ ln -s /etc/rcS.d/S51ntpdate.sh /etc/init.d/ntpdate
$root> ntpdate ntp.org
The startup script /etc/init.d/ntpdate already existed. The links in the directory /etc/rcS.d get started during boot with the "start" command. The scripts are executed in order from S00 to S99. I used S51 so ntpdate will run after the hwclock scripts run (and fail).
root$ ln -s /etc/rcS.d/S51ntpdate.sh /etc/init.d/ntpdate
Sunday, April 23, 2006
mount CF jump drive (Lexar 512MB)
I wanted to mount my flash drive which I use in windows. I inserted the drive in USB it displays
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
SCSI device sda: 1014784 512-byte hdwr sectors (520 MB)
/dev/scsi/host0/bus0/target0/lun0: p1 p2
The fdisk -l shows the two partions, I have on the jumpdrive. Tried
mount -f vfat /dev/sda1 /mnt/flash
It did not recognize the vfat filesystem . It looks like the ARM linux does not load the DOS filesystem related modules ( it makes sense not load unncessary modules). To load the modules
insmod fat
insmod vfat
insmod msdos
mount -r -t vfat /dev/sda1 /mnt/flash
#( -r is for read-only - just wanted to be safe )
ls /mnt/flash
That's it!!
To unmount
umount /mnt/flash
SPM
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
SCSI device sda: 1014784 512-byte hdwr sectors (520 MB)
/dev/scsi/host0/bus0/target0/lun0: p1 p2
The fdisk -l shows the two partions, I have on the jumpdrive. Tried
mount -f vfat /dev/sda1 /mnt/flash
It did not recognize the vfat filesystem . It looks like the ARM linux does not load the DOS filesystem related modules ( it makes sense not load unncessary modules). To load the modules
insmod fat
insmod vfat
insmod msdos
mount -r -t vfat /dev/sda1 /mnt/flash
#( -r is for read-only - just wanted to be safe )
ls /mnt/flash
That's it!!
To unmount
umount /mnt/flash
SPM
Monday, April 10, 2006
Sunday, April 09, 2006
faster boot-up
disable non-crtical services at startup
update-rc.d -f mysql remove
update-rc.d mysql start 20 3 4 5 . stop 20 0 1 6 . (note the periods)
edit /etc/inetd.conf to disable ftp and telnet ....
update-rc.d -f mysql remove
update-rc.d mysql start 20 3 4 5 . stop 20 0 1 6 . (note the periods)
edit /etc/inetd.conf to disable ftp and telnet ....
Saturday, April 08, 2006
Network is up!
Used ifup to get the network running on eth1. I'll have to see if the same works for eth0 after I finish marveling at my handywork.
Also used "apt-get install python" which installed python 2.3.
Still need to get the x11 working.
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Also used "apt-get install python" which installed python 2.3.
Still need to get the x11 working.
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