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You can reload the OS over and over and over if need be...
Simply use something like Win32 Disk Imager.
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Thanks very much for the explanation. I'm not sure whether I can
overwrite what's on the card with a new installation of the OS, or whether
I should load Linux into an old PC to get at it that way, or just buy
another SD card. Last option is quick but not very educational. I'm a
Linux novice and not finding it at all intuitive. Can you recommend any
I'm interested in your packet node project. I have a KPC3 (bought
new) and a KAM (bought at a rally for £25 - bargain!) but never
got into packet radio when it was new, which I now regret. I have VHF
radios and laptops to spare, so I ought to try again.
That's a long-established callsign. 1970? Mine dates from June
John G4EDX in Woodthorpe
--- On Fri, 24/8/12, John Wiseman
[Raspberry_Pi_4-Ham_RADIO] Some progress
Date: Friday, 24 August,
user/password for the standard PI distributions (wheezy and raspbian)
are pi/raspberry. You can’t log in as root, unless you set a root
password, via sudo passwd. Sudo doesn’t need a
The SD card has
a small boot partition, formatted as a FAT partition, so can be seen by
windows. The rest is ext4, which windows can’t see, So a freshly loaded
image appears to windows as around 55 MB. When first booted, it will
only use the first 2 GB. The first time you log in it should run a
utility raspi-config, which allows you to resize the root partition to
fill the card.
interest is in using the pi as a packet node. The prototype TNC is shown
on the front page of this group. This is a standard TNC-X, with a bit of
stripboard superglued to the edge to carry a 26 way connector. I’ve
designed a board with the connector on board, and the same size as the
pi. I’m waiting for the boards to come back from the PCB factory. The
board is stackable, so more than one TNC can be connected, and uses the
i2c bus to communicate with the pi.
John in Nottingham ,
[mailto:Raspberry_Pi_4-Ham_RADIO@...] On Behalf Of J FLETCHER
Sent: 24 August 2012
Having somehow locked myself out of the
second OS installation (it's demanding a password, which I didn't
set) I decided to format the 8Gb card and reinstall the OS. My
laptop now reports that it's a 55.8Mb card. Any
My box of bits arrived yesterday. The
HDMI-to-VGA converter works a treat. I can read all the text on
the computer's monitor (when it's not moving too quickly) and have
a full view of the games screens.
The 26-way connectors and cable arrived
too, so I can start making leads for the P1 GPIO header. First
job; flash an LED. Second job; flash it in