[raspberry-vi] Re: Setup questions.

  • From: Glenn <glennervin@xxxxxxxxxxxx>
  • To: <raspberry-vi@xxxxxxxxxxxxx>
  • Date: Mon, 13 Jan 2014 19:15:05 -0600

Hi Mike,
Usually when I install an ISO onto a memory card, the USB installer will 
give me an opportunity to create a persistence file.
A persistence file is just a file like a Windows temp file, only it is not 
rewritten, it is there to store changes to the program, or files that have 
been downloaded.
Glenn
----- Original Message ----- 
From: "Mike Ray" <mike@xxxxxxxxxxxxxxx>
To: <raspberry-vi@xxxxxxxxxxxxx>
Sent: Monday, January 13, 2014 6:54 AM
Subject: [raspberry-vi] Re: Setup questions.


Glenn,

I'm not sure I understand what you mean.  It will take a .img or a .iso
file and assuming the drive that is receiving it is big enough it will
write the whole file to the target drive.

This is a byte for byte write at low-level.

What do you mean 'persistence files'?

Mike

On 13/01/2014 00:13, Glenn wrote:
> Mike,
> Can you make it so it gives the option for various size options for
> persistence files?
> Thanks.
> Glenn
>
> ----- Original Message -----
> From: "Mike Ray" <mike@xxxxxxxxxxxxxxx>
> To: <raspberry-vi@xxxxxxxxxxxxx>
> Sent: Sunday, January 12, 2014 6:00 PM
> Subject: [raspberry-vi] Re: Setup questions.
>
>
> Guys,
>
> If you run Linux on another machine you can wipe the card like this:
>
> sudo dd bs=1M if=/dev/zero of=/dev/sdc
>
> (assuming /dev/sdc as the SD card)
>
> That will wipe the card so completely that even your girlfriend won't be
> able to undelete those dodgy emails if she works for the FBI.
>
> I always do this before I use an SD card.
>
> Podcasts...
>
> No problem hosting the podcasts but we would have to listen to them to
> make sure they don't contain anything that would land us in trouble
> either with the Pi Foundation or elsewhere.
>
> I am seriously thinking I should write a bespoke accessible RPI card
> writing application for Windows.  This I can do reasonably easily with
> C++ and wxWidgets.  Would people like to tell me what features they
> would like?  This is my list:
>
> 1.  Only make it possible to select drives marked as 'replaceable' by
> the operating system to avoid the ability to blow away a fixed disk
> accidentally.
>
> 2.  Make it possible to write more than one card at a time, so that a
> USB hub and a bunch of SD card readers would make an SD card factory.
>
> 3.  Make it totally accessible with NVDA, possibly using the NVDA
> controller client (although with wxWidgets this is not necessary).
>
> Mike
>
>
> On 12/01/2014 23:12, Mobeen Iqbal wrote:
>> Hi Nick.
>> Excellent. yes, you may be right. sorry, i was reading in a hurry, the
>> image you mentioned may not have it enabled. could you do me a favour?
>> could you try wiping the partitions manually using the disk part utility
>> in windows? if you don't know how to use it, i can send you a quick
>> start guide. i must admit that since ditching other format tools and
>> wiping all my partitions so i have a completely blank card, no image has
>> failed to boot. i think that part of the problem could be that people
>> are using utilities that do not properly format/wipe the cards clean, so
>> the pi doesn't boot. i'd like to test this theory so if you could test
>> out the attached guide for me that would be great. as for documentation,
>> yes we need help to get it up to date and always welcome contributions.
>> how about getting together for a voice chat sometime to discuss further?
>> we have a ventrilo server and can also arrange a meeting via skype. i am
>> the webmaster for the project at present, so we could potentially even
>> offer you the chance to host your podcasts if all the above is OK with
>> mike of course. please let me know your thoughts anyway.
>>
>> all the best,
>>
>> Mo.
>>
>> On 12/01/2014 23:06, Nick Adamson wrote:
>>> Hi Mo.
>>>
>>> Thanks for your quick response.
>>> 1. The reason I thought that noobe was not going to work is based on 
>>> some
>>> posts i read on the raspberry-pi forum which is backed up by what I
>>> found.
>>> When I imaged a card as described on the raspberry-pi website, 
>>> formatting
>>> with SDFormat and copying the noobe files my Pi got an IP but didn't
>>> respond
>>> to SSH. A forum post i found indicated that SSH was not initially 
>>> enabled
>>> by
>>> noobe. All indications would seem to agree with that.
>>>
>>> 2. I was assuming that I'd done something wrong, I actually quite like
>>> roadKil, My guess is that I screwed up the card when i formatted it, I'm
>>> going to have another go at some point as I'd like the ability to switch
>>> images easily. I'm using the card that came with the kit i bought so I'd
>>> assume that its pretty good. Not sure of make or model. I did notice 
>>> that
>>> the last time i ran SDFormat that it showed an error which at initial
>>> reading looks like a success message. I played around with setting until
>>> the
>>> error stopped getting reported this last time and thats what makes me
>>> think
>>> I did something wrong.
>>>
>>> 3. Thanks, will take a look.
>>>
>>> I've recorded the pod casts now and I'm going to host them up on my
>>> audioboo
>>> account just as my story with the PI.
>>>
>>> as the PI is such a good potential programming and general Linux tool I
>>> wonder if there's a little more support the raspberryvi.org website can
>>> do
>>> to help with getting started. I'd be happy to collaborate on a set of
>>> more
>>> formal podcasts for the website and would also be happy to help improve
>>> the
>>> getting started guide, as although it was invaluable in giving me some
>>> pointers in the right direction it did leave a couple of holes I think
>>> could
>>> be filled. For example It would be nice to have a comparison of the
>>> various
>>> PI distributions,  some more detailed instructions on how to image SD
>>> cards
>>> and it would appear that we can't use noobees, as almost every PI comes
>>> shipped with it i think it would be nice to have known that up front. 
>>> I'm
>>> not sure how we go about putting forward content to the website. I'd be
>>> happy to take the current getting started guide, update it and send it 
>>> in
>>> to
>>> the list for review if help like this is welcome and of any use.
>>>
>>>
>>>
>>> Thanks.
>>> Nick.
>>>
>>>
>>>
>>>
>>>
>>> --------------------------------------------------
>>> From: "Mobeen Iqbal" <mobeeniqbal@xxxxxxxxx>
>>> Sent: Sunday, January 12, 2014 10:05 PM
>>> To: <raspberry-vi@xxxxxxxxxxxxx>
>>> Subject: [raspberry-vi] Re: Setup questions.
>>>
>>>> Hello Nick.
>>>>
>>>> 1. Yes, the raspbian images do have SSH enabled by default. so a 
>>>> totally
>>>> blind person could use the image remotely from windows, though 
>>>> obviously
>>>> you would need sighted assistance if you had it connected up to a 
>>>> screen
>>>> and ssh wasn't possible.
>>>> 2. I have tried writing both the accessible arch and raspbian images to
>>>> numerous SD cards and the pi has booted with no problems. did you try
>>>> making sure the card was clear of any partitions before writing your
>>>> images? also, its worth noting that the old image we had on the website
>>>> wouldn't boot if your Pi had a hynics chip though the raspbian image
>>>> should still have booted. i'm looking in to alternative tools for
>>>> writing images for windows and will report my findings soon, as you're
>>>> not the first to complain about roadkill's tool. having said that
>>>> though, some people have reported the image not booting on other SD
>>>> cards when written with other tools including linux. can you provide 
>>>> the
>>>> make model and size of your SD card if possible? not all cards work 
>>>> with
>>>> the Pi, some can be temprimental to the point where you start to 
>>>> wonder.
>>>> i generally use sandisk or transcend cards with no problems, i believe
>>>> kingston can be temprimental.
>>>> 3. backing up an image is a little trickier if using windows, though
>>>> again the roadkill tool can do it with no problems. its how i backup 
>>>> all
>>>> my images. using NVDA's flat review or the jaws curser, click the 
>>>> backup
>>>> tab when roadkill's running and that'll switch to backup mode. it 
>>>> should
>>>> be relatively simple from there. select your drive, enter a filename 
>>>> and
>>>> click back up. i hope this helps? if you'd like a hand with the 
>>>> podcasts
>>>> drop me a note off list and perhaps we  can collaborate.
>>>>
>>>> cheers,
>>>>
>>>> Mo.
>>>>
>>>>
>>>> On 12/01/2014 21:31, Nick Adamson wrote:
>>>>> Hi all
>>>>> Well my pi arrived a couple of days ago and it's taken a while to get
>>>>> it
>>>>> in to a state i can SSH in to it.
>>>>> I'm recording a series of podcasts about the pi and I'd like to see if
>>>>> I've got everything right before recording.
>>>>> With that in mind would anyone mind answering some questions for me.
>>>>> 1. Noobe, the setup image the raspberry-pi foundation provide can not
>>>>> be
>>>>> used without ssh or with sighted assistance. Is this right?
>>>>> 2 I tried to right both the latest raspeen image and the accessible
>>>>> image
>>>>> to the ad card using roadkil but both images failed to boot even 
>>>>> though
>>>>> they seemed to get written OK. Did I do something wrong or does the pi
>>>>> have to go through the noobe setup process before you can load images
>>>>> like this.
>>>>> 3. How can I back up an image to my pc if I want to try a new image?
>>>>>
>>>>> Thanks for any help. I'd be happy to help update the getting started
>>>>> guide with my findings if that would be use full.
>>>>> Nick.
>>>>>
>>>>> ===========================================================
>>>>> The raspberry-vi mailing list
>>>>> Archives: //www.freelists.org/archives/raspberry-vi
>>>>> Administrative contact: <mike.ray@xxxxxxxxxxxxxx>
>>>>> -----------------------------------------------------------
>>>>> Raspberry Pi and the Raspberry Pi logo are trademarks of the Raspberry
>>>>> Pi
>>>>> Foundation.
>>>>>
>>>>> This list is not affiliated to the Raspberry Pi Foundation and the
>>>>> views
>>>>> and attitudes expressed by the subscribers to this list do not reflect
>>>>> those of the Foundation.
>>>>>
>>>>> Mike Ray, list creator, January 2013
>>>>>
>>>> ===========================================================
>>>> The raspberry-vi mailing list
>>>> Archives: //www.freelists.org/archives/raspberry-vi
>>>> Administrative contact: <mike.ray@xxxxxxxxxxxxxx>
>>>> -----------------------------------------------------------
>>>> Raspberry Pi and the Raspberry Pi logo are trademarks of the Raspberry
>>>> Pi
>>>> Foundation.
>>>>
>>>> This list is not affiliated to the Raspberry Pi Foundation and the 
>>>> views
>>>> and attitudes expressed by the subscribers to this list do not reflect
>>>> those of the Foundation.
>>>>
>>>> Mike Ray, list creator, January 2013
>>>>
>>>>
>>> ===========================================================
>>> The raspberry-vi mailing list
>>> Archives: //www.freelists.org/archives/raspberry-vi
>>> Administrative contact: <mike.ray@xxxxxxxxxxxxxx>
>>> -----------------------------------------------------------
>>> Raspberry Pi and the Raspberry Pi logo are trademarks of the Raspberry 
>>> Pi
>>> Foundation.
>>>
>>> This list is not affiliated to the Raspberry Pi Foundation and the views
>>> and attitudes expressed by the subscribers to this list do not reflect
>>> those of the Foundation.
>>>
>>> Mike Ray, list creator, January 2013
>>>
>>
>> ===========================================================
>> The raspberry-vi mailing list
>> Archives: //www.freelists.org/archives/raspberry-vi
>> Administrative contact: <mike.ray@xxxxxxxxxxxxxx>
>> -----------------------------------------------------------
>> Raspberry Pi and the Raspberry Pi logo are trademarks of the Raspberry Pi
>> Foundation.
>>
>> This list is not affiliated to the Raspberry Pi Foundation and the views
>> and attitudes expressed by the subscribers to this list do not reflect
>> those of the Foundation.
>>
>> Mike Ray, list creator, January 2013
>>
>


-- 
Michael A. Ray
Analyst/Programmer
Witley, Surrey, South-east UK

I KEEP six honest serving-men, They taught me all I know. Their names are 
What and Why and When and How and Where and Who.
-- Rudyard Kipling (paraphrased)

Interested in accessibility on the Raspberry Pi?
Visit: http://www.raspberryvi.org/

 From where you can join our mailing list for visually-impaired Pi hackers

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Archives: //www.freelists.org/archives/raspberry-vi
Administrative contact: <mike.ray@xxxxxxxxxxxxxx>
-----------------------------------------------------------
Raspberry Pi and the Raspberry Pi logo are trademarks of the Raspberry Pi 
Foundation.

This list is not affiliated to the Raspberry Pi Foundation and the views and 
attitudes expressed by the subscribers to this list do not reflect those of 
the Foundation.

Mike Ray, list creator, January 2013

=========================================================== 
The raspberry-vi mailing list 
Archives: //www.freelists.org/archives/raspberry-vi
Administrative contact: <mike.ray@xxxxxxxxxxxxxx>
-----------------------------------------------------------
Raspberry Pi and the Raspberry Pi logo are trademarks of the Raspberry Pi 
Foundation.

This list is not affiliated to the Raspberry Pi Foundation and the views and 
attitudes expressed by the subscribers to this list do not reflect those of the 
Foundation.

Mike Ray, list creator, January 2013

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