software install

[rg]

Happily running on a PiB+ .  A new Pi2 just arrived today.  Formatted SD card again and put software on it.  During boot on the Pi2 it gets stuck at the following line

2.2717251 ---[ end Kernel panic [ not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

Anyone have any idea whats going on?

[Admin]

Formatting error, you may need to format with 'FULL (Overwrite)'

thx
Lee

[rg]

Tried that several times.  It seems dragging the software out of the zip file straight onto the card worked but everytime I used an  unzipped versions I had the problem. 

[rg]

Well I spoke a bit soon.  Finally got the software to install.  Pi2 is plugged into the mains at the moment and connected to a monitor.  I can  see it boots up to the pi login prompt and I could see and connect to the paw wifi.


As soon as safari connected to 192.168.1.1 the pi rebooted and is now stuck in a loop

[Admin]

Rg
Is this a home build or a classic ?

I am suspecting either the sd card, or the wifi dongle

Aha, just reread, rebooted you say, could this be power
What is your supply and cable ?

I have a wifi dongle from the pihut, which when connected starts drawing 700mA !!!!

Thx
Lee

[rg]

Its home built.  But everything was working OK on the B+.  Seems to be working again now.

[Admin]

Its home built.  But everything was working OK on the B+.  Seems to be working again now.

I think that may well fail again, sounds like the SD Card may have a corruption :-(

[rg]

Actually I think it was a power issue.  I just looked at the plug and it only outputs 5v 1a and it was a long cable.  It was fine when I swapped onto a short cable, or swapped the plug.  Just rather stupidly assumed I'd get enough juice out of any usb plug.

[Admin]

Good catch !