Raspberry Pi Forums

neeed helpp

i just installed the wheezy in my pi and and it is working fine but when i reboot it .it gives different error e.g buffer i/o error , respawning too fast . What can i do now??? need help because when i want to use my pi. just reinstalled wheezy again and again because it only work once

burhan wrote:neeed helpp

i just installed the wheezy in my pi and and it is working fine but when i reboot it .it gives different error e.g buffer i/o error , respawning too fast . What can i do now??? need help because when i want to use my pi. just reinstalled wheezy again and again because it only work once

Do you have a USB hub attached? If not what all is connected to the Pi? And while that doesn't strike me as a power issue, what is the Amp rating of your power supply? Is it a well known brand or a generic charger?

Don't know about amp , i
am using laptop usb port as a power supply of pi .Mouse , keyboard and lcd is attached with hdmi port

here is a text for config file which i am using its works fine only 1st tym after rebooting. it starts giving different error

# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1

# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
#disable_overscan=1

# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16

# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720

# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1

# uncomment to force a specific HDMI mode (this will force VGA)
hdmi_group=1
hdmi_mode=1

# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2

# config_hdmi_boost=4

# uncomment for composite PAL
#sdtv_mode=2

#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800

Just thinking out loud here, I would try a different power source, usb ports tend to only provide 500mA of current. If you're using the model B with a mouse, keyboard, and monitor then it's very possible that the pi is crashing because it doesn't have enough power.

When you say "when you reboot" how are you rebooting the pi?

Did you get to follow up on your issue?

yes sir, its a B model and i just tried to reboot with different power supplies but getting same errors ..don't know what to do
after installing wheezy and after getting into the teirminal i wrote "sudo halt" to shut it down and unplugged the power supply and after 1min i just attached the power supply and got this kind of error

Sir if it is crashing just because of the attachment of mouse ,keyboard and monitor then what's the solution??

Attach the mouse and keyboard to a powered USB hub. Or get a better 5V 1.5A power supply.

same error with 5V 1.5A power supply . sir if it works fine on first boot then i don't think its the power issue. need your suggestion

I think you should try a brand new SDCard.

sir i am using brand new sandisk 4gb card

burhan wrote:sir i am using brand new sandisk 4gb card

Try a new RPi.

means there is no solution . my pi is working well but just for 1 time boot

You could try
sudo apt-get update && sudo apt-get dist-upgrade && sudo rpi-update
that gets all software packages updated and updates the system firmware (which has some recent fixes for SDCard corruptions).

ok thank you sir i;ll try this