Is there a way to customize a Lucid Lynx Launcher icon for various programs? There does not seem to be a way to do this using Create Launcher
or Launcher properties. The application is not actually "installed" on the PC, the executable has just been copied. All I've been able to do so far is to add the command /home/t32/bin/pc_linux/t32marm -c /home/t32/config_usb.t32
to a generic Launcher icon using Create Launcher
.
jacknad's questions
Why might sudo chmod -R a+w *
cause
sudo: /etc/sudoers is mode 0640, should be 0440 sudo:
no valid sudoers sources found, quitting
and how might it be made to work?
Working with a single monitor is getting old and it was a bit of a pain getting the Intel Sandy Bridge Integrated Graphics working with 10.04. What is a good 10.04 plug and play dual monitor video card with 2 HDMI ports? It will be used with 2 ViewSonic VX2450wm-LED monitors at 1920 x 1080. It won't be used for high performance apps like gaming but may be used to stream video.
I used the instructions here to install eclipse and the here to create an eclipse project but I suspect the instructions were written for an older version of eclipse. Specifically, there is no Build (Incremental Build): build install EXTRA_CFLAGS+=-g...
in this version of eclipse. I have created the project without the EXTRA_CFLAGS and have been poking around in it looking for a place to add or set them. I see a number of things that look close in Project Properties
but nothing that seems like a match.
I am following the RidgeRun documentation: How to boot a board from a SD card. I disable Nautilus from auto-mounting file systems to avoid a possible race condition and build the SD card image. I am not quite sure about step 4, "Insert a SD card in your PC and wait until it is mounted" but I see /dev/sdb1 only when the SD card is in so I assume /dev/sdb1 is my SD card and is mounted. When I type "mount" as suggested in step 5 I don't see anything like this
'''/dev/sdb1''' on /media/boot type vfat (rw,nosuid,nodev,uhelper=udisks,uid=1000,gid=1000,shortname=mixed,dmask=0077,utf8=1,flush)
but I do see this
/dev/sda1 on / type ext4 (rw,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
none on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
none on /dev type devtmpfs (rw,mode=0755)
none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
none on /dev/shm type tmpfs (rw,nosuid,nodev)
none on /var/run type tmpfs (rw,nosuid,mode=0755)
none on /var/lock type tmpfs (rw,noexec,nosuid,nodev)
none on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
rpc_pipefs on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
nfsd on /proc/fs/nfsd type nfsd (rw)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
gvfs-fuse-daemon on /home/jnadelman/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=jnadelman)
Assuming nothing needs to be unmounted I do a
sudo dd if=sdcard.img of=/dev/sdb1
and see
262144+0 records in
262144+0 records out
134217728 bytes (134 MB) copied, 50.8677 s, 2.6 MB/s
so I move the SD-card from the PC to the Leopardboard, turn ON dip switch 2, and power on the Leopardboard but don't see any console activity. Moving the SD-card back to the PC I don't see anything in /media so I turn auto-mount back on and look with nautilus but still don't see anything. I think sdcard.img has been written to the bit bucket but can't be sure. I have been able to run this image using NFS but I need to be able to run it from the SD-card. Is the RidgeRun SD-card documentation incorrect or incomplete? How do I write sdcard.img?
I know this is considered a bad question since there is no correct answer, but I need to decide on a database for embedded linux (DaVinci 368 based) hardware and I've never had to produce a design with a database before. Each record will probably contain less than 1000 images with associated alpha-numeric data and the mass storage will be some kind of flash drive. Only one user needs access to the data at a time. MySQL claims to be "The world's most popular open source database" but SQLite claims to be "the most widely deployed SQL database engine in the world." Perhaps there is another that is also the best in the world? Which is easiest to use for a database newbie? Should I just flip a coin? Does it really matter which one I pick? Do I even need to use a database software package or should I roll my own? I won't need bells and whistles like sorting, but I'll probably need to delete the oldest records to make room for new ones if the storage fills up.
The display looks a bit stretched and there is a system pop-up that says something like "Resolution Notice: for best quality change resolution to 1920 x 1080" but in Monitor Preferences the only choices in the Resolution drop-down are 1600 x 1200 (the current setting), 1280 x 1024, and less (which all look worse). The monitor preferences calls the Monitor "unknown," the monitor is a ViewSonic VX2450WM, and the PC is an HP p7-1120.
I have set up the NFS Service using these instructions and it was working fine last week but today I get this error:
Root-NFS: Unable to get nfsd port number from server, using default
I restarted the NFS server like this:
sudo /etc/init.d/nfs-kernel-server restart
and tried repeatedly but still get the error. When I google the error I see the suggestion
update firewall to pass NFS traffic
How do I update firewall to pass NFS traffic? Or should it be some other issue since it was working fine last week?