Hi, I am starting making a product with the mini2440. Because it is an embedded device, user probably don't care to "shut down" it properly, they just turn it on or off at any time. My question is: can the linux kernel and file system that we are using for the mini2440 work OK in this circumstance? Will the file system be "hurt" if the device is turn off with out "shut down" process?
http://www.friendlyarm.net/forum/topic/2437 I suggest that what you are doing at the time power is removed is the issue. In discussion with guys I work with if you are writing to a journalled file system then you only lose that particular chunk of information. They run two complete systems on the ARM and I guess can compare them to ensure there is no corruption of any databases they are trying to capture changes in. If you are currently capturing new information, ie a datalogger the only way that I know of is to maintain supply voltages long enough to finish getting the information and then gracefully shut-down (search BOD). A "super-cap" or small battery and a watchdog chip that could trigger a controlled shut-down process, maybe is a solution. Keen to know if there are other solutions to this problem.