Raspberry Pi Forums

Posted: **Sun Aug 16, 2015 8:59 am**

hi ,
I bought a new Raspberry pi 2 model b yesterday.
I have a samsung monitor that takes vga input.so I bought a hdmi to vga adapter(below link).
" http://www.flipkart.com/storite-hdmi-ma ... rom-search "

I have a 16 GB kingston sd card .I have formatted it using sd formatter tool in windows as mentioned in noobs setup guide.
It was formatted to FAT system .I dropped all files from noobs setup folder to SD card.

when i gave power to raspberry pi it is booting but monitor is not displaying anything.I am sure that raspberry pi is booting because numlock and capslock leds on my keyboard(connected to pi) are working .

I have pressed 2 key while booting up then monitor got some signal .monitor showing bright black screen when i press 2 key.

I have tested HDMI to VGA adapter by connecting my laptop to VGA monitor .It is working .

Do I have to change config.txt which is located in NOOBS_v1_4_1/os/Raspbian/boot.tar.xz.

help me with this.

Thanks and Regards,
A. CNU reddy

Posted: **Sun Aug 16, 2015 6:36 pm**

CNU wrote:hi ,
I bought a new Raspberry pi 2 model b yesterday.
I have a samsung monitor that takes vga input.so I bought a hdmi to vga adapter(below link).
" http://www.flipkart.com/storite-hdmi-ma ... rom-search "
I have a 16 GB kingston sd card .I have formatted it using sd formatter tool in windows as mentioned in noobs setup guide.
It was formatted to FAT system .I dropped all files from noobs setup folder to SD card.
when i gave power to raspberry pi it is booting but monitor is not displaying anything.I am sure that raspberry pi is booting because numlock and capslock leds on my keyboard(connected to pi) are working .
I have pressed 2 key while booting up then monitor got some signal .monitor showing bright black screen when i press 2 key.
I have tested HDMI to VGA adapter by connecting my laptop to VGA monitor .It is working .
Do I have to change config.txt which is located in NOOBS_v1_4_1/os/Raspbian/boot.tar.xz.
help me with this.
Thanks and Regards,
A. CNU reddy

I suspect from your description above that you may not have completed the installation process since you do not seem to have even seen the O.S. installation selection screen** ("I have pressed 2 key while booting up then monitor got some signal .monitor showing bright black screen when i press 2 key") and, may be, your converter isn't working properly in "HDMI Safe Mode". W.r.t. config.txt, you do not change the file you refer to, rather a similarily named file (one for each O.S. you choose to install) using NOOBS' buit-in editing tool - more detailed info. is here:
https://github.com/raspberrypi/noobs
Also in that documentation is a description of how to make NOOBS automatically install an O.S. :
https://github.com/raspberrypi/noobs#ho ... tall-an-os
Once you're sure you have an O.S. (preferably Raspbian) installed and can edit the (correct) config.txt file, FWIW, you may find these notes of some use:
http://www.cpmspectrepi.webspace.virgin ... tings.html
Trev.
** Something like this, albeit for an older version of NOOBS:
http://www.cpmspectrepi.webspace.virgin ... n_progress

Posted: **Mon Aug 17, 2015 4:33 am**

thank you FTrevorGowen.

I tried silent install but LED flashing 7 times periodically.This means kernel.img not found.

I have downloaded NOOBS from raspberry pi downloads page.
I have extracted it and edited flavous.jason file(removed second option i.e.,wheezy port thing) in os/raspbian folder.
I have added silentinstall to recovery.cmdline .

Then ,I started PI ,I dont know whether it is installing or not but green LED is blinking repeatedly 7 times(i.e., kernel.img not found).

I have searched that noobs folder for kernel.img and found them in OS/Raspibian/boot.tar.xz

Is installation happening or not.
what is meant by this 7 times LED blinking.

so please help me with this .

Thank you
A CNU Reddy

Posted: **Mon Aug 17, 2015 5:57 am**

CNU wrote: + downloaded NOOBS, I have extracted it
+ edited flavous.jason file(removed second option i.e.,wheezy port thing) in os/raspbian folder.
+ I have added silentinstall to recovery.cmdline .

- i think you forget to delete the /os/Data_Partition/
so the boot to noobs did not do anything ( you see that the SD card partition is still ?8/full?GB and not the 850MB for the visible recovery partition after successful install Raspbian. )

+ add i prepare some network settings already by edit
/os/Raspbian/partition_setup.sh and add

Code: Select all

# for a short ethernet connection PC RPI
#sed /tmp/1/cmdline.txt -i -e "s|rootwait|rootwait ip=192.168.10.101::192.168.10.10|"
#sed /tmp/2/etc/network/interfaces -i -e "/iface eth0/a\dns-nameservers 8.8.8.8 8.8.4.4"
# for WIFI with fix ssid in interfaces
sed /tmp/2/etc/network/interfaces -i -e '/wpa-conf/d' 
sed /tmp/2/etc/network/interfaces -i -e '/iface wlan0/a\wpa-ssid "my-wlan"'
sed /tmp/2/etc/network/interfaces -i -e '/wpa-ssid/a\wpa-psk "We-Love-RPi"'
#sed /tmp/2/etc/network/interfaces -i -e '/wpa-psk/a\address 192.168.1.101'
#sed /tmp/2/etc/network/interfaces -i -e '/address/a\gateway 192.168.1.1' 
# using dhcpcd.conf for fix ip now
sed /tmp/2/etc/dhcpcd.conf -i -e '$a\ interface eth0'
sed /tmp/2/etc/dhcpcd.conf -i -e '$a\ static ip_address=192.168.1.101/24 '
sed /tmp/2/etc/dhcpcd.conf -i -e '$a\ static routers=192.168.1.1 '
sed /tmp/2/etc/dhcpcd.conf -i -e '$a\ static domain_name_servers=192.168.1.1 '
sed /tmp/2/etc/dhcpcd.conf -i -e '$a\ interface wlan0'
sed /tmp/2/etc/dhcpcd.conf -i -e '$a\ static ip_address=192.168.1.201/24 '
sed /tmp/2/etc/dhcpcd.conf -i -e '$a\ static routers=192.168.1.1 '
sed /tmp/2/etc/dhcpcd.conf -i -e '$a\ static domain_name_servers=192.168.1.1 '

so it will come up even on WIFI only..

my last 9 noobs noir ( headless silent ) installs worked in between 20 .. 35 min
depending on RPI1, RPI2, and SD card

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