333 File System - Revision history

Polto at 23:40, 24 August 2008

2008-08-24T23:40:52Z

← Older revision		Revision as of 23:40, 24 August 2008
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			{{Manual legacy_pages}}

	~~''' !!! THIS PAGE IS OUTDATED !!! PLS SEE [[353_File_System]] '''~~




	== Elphel Model 333 Camera File Systems ==		== Elphel Model 333 Camera File Systems ==

Polto at 02:03, 23 July 2007

2007-07-23T02:03:21Z

← Older revision		Revision as of 02:03, 23 July 2007
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			''' !!! THIS PAGE IS OUTDATED !!! PLS SEE [[353_File_System]] '''




	== Elphel Model 333 Camera File Systems ==		== Elphel Model 333 Camera File Systems ==
	Camera has 3 file systems, you may browse them '''<nowiki>http://<camera_ip>/admin-bin/editcgi.cgi?file=/</nowiki>'''		Camera has 3 file systems, you may browse them '''<nowiki>http://<camera_ip>/admin-bin/editcgi.cgi?file=/</nowiki>'''

Andrey.filippov at 00:33, 5 October 2005

2005-10-05T00:33:18Z

← Older revision		Revision as of 00:33, 5 October 2005
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	== Elphel Model 333 Camera File Systems ==		== Elphel Model 333 Camera File Systems ==
	Camera has 3 file systems, you may browse them <nowiki>http://<camera_ip>/admin-bin/editcgi.cgi?file=/</nowiki>		Camera has 3 file systems, you may browse them '''<nowiki>http://<camera_ip>/admin-bin/editcgi.cgi?file=/</nowiki>'''
	One of these FS use camera system memory, two others - flash.		One of these FS use camera system memory, two others - flash.

	=== cramfs ===		=== cramfs ===

	This is a readonly file system (compressed) that is written only when the whole flash memory is updated using [[flashit]] utility.		This is a readonly file system (compressed) that is written only when the whole flash memory is updated using [[flashit]] utility. It contains root file system, most of the system files and applications that do not need to be modified during normal camera operation.

	=== tmpfs ===		=== tmpfs ===
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	This is a file system that uses a part of the system SDRAM (RAM-disk), it is fast, mounted with both read and write access but everything in it disappears when the power is disconnected.		This is a file system that uses a part of the system SDRAM (RAM-disk), it is fast, mounted with both read and write access but everything in it disappears when the power is disconnected.

	This FS is mounted as /var, there is a simlink to /var/html so you may ftp temporary web pages there (i.e. /var/html/your_web_page.html) and they will appear as <nowiki>http://camera_ip/var/your_web_page.html</nowiki>		This FS is mounted as '''/var''', there is a simlink to '''/var/html''' so you may ftp temporary web pages there (i.e. '''/var/html/your_web_page.html''') and they will appear as '''<nowiki>http://camera_ip/var/your_web_page.html</nowiki>'''

			=== jffs2 ===

			This one is a camera "hard drive" - this FS can be written to and the contents will survive powering the system down. Physically it resides in the camera flash memory (biggest of the 3 partitions) so there is a limitation to the total number of writes to each block (~100,000). It is a big number for occasional writes, but if some program will write there flushing after each byte written - it will definitely kill the camera soon.

			'''/etc''' is in jffs2, particularly '''/etc/httpd/html''' is the root of http server, so '''/etc/httpd/html/index.html''' is what is visible as '''<nowiki>http://<camera_ip></nowiki>
			'''
			'''/usr/local''' is also in this file system, you may ftp there some programs you would like to try without overwriting all of the flash memory.

			=== boot partition ===

			The first block in the flash memory (it is rather big - 128KB) is not included in any file system and is not overwritten by the [[flashit]] utility (if "-a" switch is not included). In addition to the bootloader this sector holds multiple "key=value" pairs, most important currently is camera serial number (same as Ethernet MAC address).

Andrey.filippov: /* Elphel Model 333 Camera File Systems */

2005-10-04T23:13:16Z

Elphel Model 333 Camera File Systems

← Older revision		Revision as of 23:13, 4 October 2005
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	Camera has 3 file systems, you may browse them <nowiki>http://<camera_ip>/admin-bin/editcgi.cgi?file=/</nowiki>		Camera has 3 file systems, you may browse them <nowiki>http://<camera_ip>/admin-bin/editcgi.cgi?file=/</nowiki>
	One of these FS use camera system memory, two others - flash.		One of these FS use camera system memory, two others - flash.

			=== cramfs ===

			This is a readonly file system (compressed) that is written only when the whole flash memory is updated using [[flashit]] utility.

	=== tmpfs ===		=== tmpfs ===

	This is a file system that uses a part of the system SDRAM (RAM-disk), it is fast, mounted with both read and write access but everything in it disappears when the power is disconnected.		This is a file system that uses a part of the system SDRAM (RAM-disk), it is fast, mounted with both read and write access but everything in it disappears when the power is disconnected.

	This FS is mounted as /var, there is a simlink to /var/html so you may ftp temporary web pages there (i.e. /var/html/your_web_page.html) and they will appear as <nowiki>http://camera_ip/var/your_web_page.html</nowiki>		This FS is mounted as /var, there is a simlink to /var/html so you may ftp temporary web pages there (i.e. /var/html/your_web_page.html) and they will appear as <nowiki>http://camera_ip/var/your_web_page.html</nowiki>

Andrey.filippov: /* Elphel Model 333 Camera File Systems */

2005-10-04T23:10:46Z

Elphel Model 333 Camera File Systems

← Older revision		Revision as of 23:10, 4 October 2005
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	Camera has 3 file systems, you may browse them <nowiki>http://<camera_ip>/admin-bin/editcgi.cgi?file=/</nowiki>		Camera has 3 file systems, you may browse them <nowiki>http://<camera_ip>/admin-bin/editcgi.cgi?file=/</nowiki>
	One of these FS use camera system memory, two others - flash.		One of these FS use camera system memory, two others - flash.
	=== ~~cramfs~~ ===		=== tmpfs ===
	This is a file system that uses a part of the system SDRAM (RAM-disk), it is fast, mounted with both read and write access but everything in it disappears when the power is disconnected.		This is a file system that uses a part of the system SDRAM (RAM-disk), it is fast, mounted with both read and write access but everything in it disappears when the power is disconnected.

	This FS is mounted as /var, there is a simlink to /var/html so you may ftp temporary web pages there (i.e. /var/html/your_web_page.html) and they will appear as <nowiki>http://camera_ip/var/your_web_page.html</nowiki>		This FS is mounted as /var, there is a simlink to /var/html so you may ftp temporary web pages there (i.e. /var/html/your_web_page.html) and they will appear as <nowiki>http://camera_ip/var/your_web_page.html</nowiki>

Andrey.filippov at 23:10, 4 October 2005

2005-10-04T23:10:21Z

← Older revision		Revision as of 23:10, 4 October 2005
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	One of these FS use camera system memory, two others - flash.		One of these FS use camera system memory, two others - flash.
	=== cramfs ===		=== cramfs ===
	This is a file system that uses a ~~portion~~ of the system SDRAM (RAM-disk), it is fast, mounted with both read and write access but everything in it disappears when the power is disconnected.		This is a file system that uses a part of the system SDRAM (RAM-disk), it is fast, mounted with both read and write access but everything in it disappears when the power is disconnected.

	This FS is mounted as /var, there is a simlink to /var/html so you may ftp temporary web pages there (i.e. /var/html/your_web_page.html) and they will appear as <nowiki>http://camera_ip/var/your_web_page.html</nowiki>		This FS is mounted as /var, there is a simlink to /var/html so you may ftp temporary web pages there (i.e. /var/html/your_web_page.html) and they will appear as <nowiki>http://camera_ip/var/your_web_page.html</nowiki>

Andrey.filippov at 23:09, 4 October 2005

2005-10-04T23:09:59Z

New page

== Elphel Model 333 Camera File Systems ==
Camera has 3 file systems, you may browse them <nowiki>http://<camera_ip>/admin-bin/editcgi.cgi?file=/</nowiki>
One of these FS use camera system memory, two others - flash.
=== cramfs ===
This is a file system that uses a portion of the system SDRAM (RAM-disk), it is fast, mounted with both read and write access but everything in it disappears when the power is disconnected.

This FS is mounted as /var, there is a simlink to /var/html so you may ftp temporary web pages there (i.e. /var/html/your_web_page.html) and they will appear as <nowiki>http://camera_ip/var/your_web_page.html</nowiki>