How to:Write Image to SD Card - Revision history

Andrewusu at 16:31, 14 December 2021

2021-12-14T16:31:02Z

← Older revision		Revision as of 16:31, 14 December 2021
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	</pre>		</pre>

	It will report interesting characteristics of the flash media, such as how much DRAM cache there is, read/write performance, and if it is a counterfeit. Counterfeit flash memory often results in data being corrupted that was written to it, without warning, and that data is lost forever. It has a small amount of poor quality but working flash memory which is enough to deceive you, your computer, and most all software into thinking it is what it claims to be. In addition there is the professionally sealed branded packaging and a deceptively good cosmetic appearance, which all makes you think it is a legitimate product.		It will report interesting characteristics of the flash media, such as how much DRAM cache there is, read/write performance, and if it is a counterfeit.

			Counterfeit flash memory often results in data being corrupted that was written to it, without warning, and that data is lost forever. It has a small amount of poor quality but working flash memory which is enough to deceive you, your computer, and most all software into thinking it is what it claims to be. In addition there is the professionally sealed branded packaging and a deceptively good cosmetic appearance, which all makes you think it is a legitimate product.

Andrewusu at 15:57, 14 December 2021

2021-12-14T15:57:28Z

← Older revision		Revision as of 15:57, 14 December 2021
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	</pre>		</pre>

	It will report interesting characteristics of the flash media, such as how much DRAM cache there is, read/write performance, and if it is a counterfeit. Counterfeit flash memory often results in data being corrupted that was written to it, without warning, and that data is lost forever. It has a small amount of ~~valid~~ flash memory which is enough to deceive you, your computer, and most all software into thinking it is ~~legitimate~~. In addition there is the professionally sealed branded packaging and a deceptively good cosmetic appearance, which all makes you think it is a legitimate product.		It will report interesting characteristics of the flash media, such as how much DRAM cache there is, read/write performance, and if it is a counterfeit. Counterfeit flash memory often results in data being corrupted that was written to it, without warning, and that data is lost forever. It has a small amount of poor quality but working flash memory which is enough to deceive you, your computer, and most all software into thinking it is what it claims to be. In addition there is the professionally sealed branded packaging and a deceptively good cosmetic appearance, which all makes you think it is a legitimate product.

Andrewusu at 15:54, 14 December 2021

2021-12-14T15:54:22Z

@@ Line 5: / Line 5: @@
 An Image file is an exact copy of a partition or an entire hard drive. It's imagined best as a backup of a storage device, like a HDD or a stick. Writing an image to a medium is therefore very similar to restoring a backup. The Raspberry Pi Images are of course no backup but the source of the operating system, but it's helpful to understand that there is no installation ongoing like we're used to it, instead it's just copying an out of the box working version of the operating system onto the SD Card.
 =Using Disk Image Writer=
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 After that the SD Card should be ready. Test on your PI and turn it on!

Andrewusu at 15:39, 14 December 2021

2021-12-14T15:39:45Z

← Older revision		Revision as of 15:39, 14 December 2021
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	=Test Flash Media=		=Test Flash Media=

	The market seems to be saturated with counterfeit SD cards and USB flash memory. It is good practice to test for a counterfeit after purchase, even from a reputable seller, and especially so from eBay/Amazon. Install `f3 - Fight Flash Fraud` and test on the media. This test will delete any existing partitioning and destroy data on the disk so be sure to call it on the correct /dev/sd# disk.\		The market seems to be saturated with counterfeit SD cards and USB flash memory. It is good practice to test for a counterfeit after purchase, even from a reputable seller, and especially so from eBay/Amazon. Install `f3 - Fight Flash Fraud` and test on the media. This test will delete any existing partitioning and destroy data on the disk so be sure to call it on the correct /dev/sd# disk.
	<pre>		<pre>
	sudo apt-get install f3		sudo apt-get install f3

Andrewusu: Counterfeit awarenesss

2021-12-14T15:39:10Z

Counterfeit awarenesss

← Older revision		Revision as of 15:39, 14 December 2021
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	An Image file is an exact copy of a partition or an entire hard drive. It's imagined best as a backup of a storage device, like a HDD or a stick. Writing an image to a medium is therefore very similar to restoring a backup. The Raspberry Pi Images are of course no backup but the source of the operating system, but it's helpful to understand that there is no installation ongoing like we're used to it, instead it's just copying an out of the box working version of the operating system onto the SD Card.		An Image file is an exact copy of a partition or an entire hard drive. It's imagined best as a backup of a storage device, like a HDD or a stick. Writing an image to a medium is therefore very similar to restoring a backup. The Raspberry Pi Images are of course no backup but the source of the operating system, but it's helpful to understand that there is no installation ongoing like we're used to it, instead it's just copying an out of the box working version of the operating system onto the SD Card.

			=Test Flash Media=

			The market seems to be saturated with counterfeit SD cards and USB flash memory. It is good practice to test for a counterfeit after purchase, even from a reputable seller, and especially so from eBay/Amazon. Install `f3 - Fight Flash Fraud` and test on the media. This test will delete any existing partitioning and destroy data on the disk so be sure to call it on the correct /dev/sd# disk.\
			<pre>
			sudo apt-get install f3
			sudo f3probe --destructive --time-ops /dev/sd#
			</pre>

			It will report interesting characteristics of the flash media, such as how much DRAM cache there is, read/write performance, and if it is a counterfeit. Counterfeit flash memory often results in data being corrupted that was written to it, without warning, and that data is lost forever. It has a small amount of valid flash memory which is enough to deceive you, your computer, and most all software into thinking it is legitimate. In addition there is the professionally sealed packaging and good cosmetic appearance.

	=Using Disk Image Writer=		=Using Disk Image Writer=

Christian at 19:54, 27 July 2017

2017-07-27T19:54:14Z

← Older revision		Revision as of 19:54, 27 July 2017
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	After that the SD Card should be ready. Test on your PI and turn it on!		After that the SD Card should be ready. Test on your PI and turn it on!

	~~The Usage of the OSE 3dPrint Cluster Software is simply done by starting the PI up and typing in the IP adress of the PI (can be found out in the router) into a browsers adress bar.~~

Christian at 19:53, 27 July 2017

2017-07-27T19:53:14Z

← Older revision		Revision as of 19:53, 27 July 2017
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	After this, there may be some kind of customization to make, however this is very specific and should always be handeled with care.		After this, there may be some kind of customization to make, however this is very specific and should always be handeled with care.
	In the case of the OSE 3dPrint Cluster Software, you can put in your wifi credentials so the Raspberry Pi will automatically connect to your network.		In the case of the OSE 3dPrint Cluster Software, you can put in your wifi credentials so the Raspberry Pi will automatically connect to your network.
	For achieving that, we have to modify a textfile. Go to the external partition called 'boot' and open the octopi-network.txt.		For achieving that, we have to modify a textfile. Go to the external partition called 'boot' and open the '''octopi-network.txt'''.

	[[File:Cluster-Wifi.jpg \| 800 px]]		[[File:Cluster-Wifi.jpg \| 800 px]]

Christian at 19:52, 27 July 2017

2017-07-27T19:52:53Z

← Older revision		Revision as of 19:52, 27 July 2017
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	Now you have to customize depending on the network, there are three options here: WPA/WPA2, WEP and unsecured.		Now you have to customize depending on the network, there are three options here: WPA/WPA2, WEP and unsecured.
	Uncomment the lines (meaning: remove the #) ~~below~~ your kind of network authentification (which is probably and hopefully WPA2) and fill in your SSID (this means the name of your ~~network~~) and the WIFI password inside the "". Don't forget to save the file.		Uncomment the lines (meaning: remove the #) marked in the picture for your kind of network authentification (which is probably and hopefully WPA2) and fill in your SSID (this means the name of your WIFI when you see it on a computer or smartphone) and the WIFI password inside the "". Don't forget to save the file.

	After that the SD Card should be ready. Test on your PI and turn it on!		After that the SD Card should be ready. Test on your PI and turn it on!

	The Usage of the OSE 3dPrint Cluster Software is simply done by starting the PI up and typing in the IP adress of the PI (can be found out in the router) into a browsers adress bar.		The Usage of the OSE 3dPrint Cluster Software is simply done by starting the PI up and typing in the IP adress of the PI (can be found out in the router) into a browsers adress bar.

Christian at 19:50, 27 July 2017

2017-07-27T19:50:50Z

← Older revision		Revision as of 19:50, 27 July 2017
Line 39:		Line 39:
	In the case of the OSE 3dPrint Cluster Software, you can put in your wifi credentials so the Raspberry Pi will automatically connect to your network.		In the case of the OSE 3dPrint Cluster Software, you can put in your wifi credentials so the Raspberry Pi will automatically connect to your network.
	For achieving that, we have to modify a textfile. Go to the external partition called 'boot' and open the octopi-network.txt.		For achieving that, we have to modify a textfile. Go to the external partition called 'boot' and open the octopi-network.txt.

			[[File:Cluster-Wifi.jpg \| 800 px]]

	Now you have to customize depending on the network, there are three options here: WPA/WPA2, WEP and unsecured.		Now you have to customize depending on the network, there are three options here: WPA/WPA2, WEP and unsecured.
	Uncomment the lines (meaning: remove the #) below your kind of network authentification (which is probably and hopefully WPA2) and fill in your SSID (this means the name of your network) and the WIFI password inside the "". Don't forget to save the file.		Uncomment the lines (meaning: remove the #) below your kind of network authentification (which is probably and hopefully WPA2) and fill in your SSID (this means the name of your network) and the WIFI password inside the "". Don't forget to save the file.

Christian at 00:49, 27 July 2017

2017-07-27T00:49:23Z

← Older revision		Revision as of 00:49, 27 July 2017
Line 40:		Line 40:
	For achieving that, we have to modify a textfile. Go to the external partition called 'boot' and open the octopi-network.txt.		For achieving that, we have to modify a textfile. Go to the external partition called 'boot' and open the octopi-network.txt.
	Now you have to customize depending on the network, there are three options here: WPA/WPA2, WEP and unsecured.		Now you have to customize depending on the network, there are three options here: WPA/WPA2, WEP and unsecured.
	Uncomment the lines (meaning: remove the #) below your kind of network authentification (which is ~~problably~~ and hopefully WPA2) and fill in your SSID (this means the name of your network) and the WIFI password inside the "". Don't forget to save the file.		Uncomment the lines (meaning: remove the #) below your kind of network authentification (which is probably and hopefully WPA2) and fill in your SSID (this means the name of your network) and the WIFI password inside the "". Don't forget to save the file.

	After that the SD Card should be ready. Test on your PI and turn it on!		After that the SD Card should be ready. Test on your PI and turn it on!

	The Usage of the OSE 3dPrint Cluster Software is simply done by starting the PI up and typing in the IP adress of the PI (can be found out in the router) into a browsers adress bar.		The Usage of the OSE 3dPrint Cluster Software is simply done by starting the PI up and typing in the IP adress of the PI (can be found out in the router) into a browsers adress bar.