Oh if not taken, take the image of the hard drive, create a new system and boot with the duplicate one
Generating a memory dump this way would not produce comparable results to taking a dump from the live system before it was turned off.
(excluding the cases mentioned above of sleeping or hibernating machines)
For the people claiming memory is not cleared on a long power cycle, please produce some evidence.
U-Boot Startup Messages
Not sure how this relates to memory dumping.
In a PC, the equivalent would be the BIOS; in a Macintosh, it would be the EFI Firmware
PC's switched to UEFI firmware about 10 years ago.
And yes, you could write a memory dumper tool to run in UEFI, but it seems rather pointless if the RAM is cleared on a power cycle.
(RAM is not cleared on a soft restart however, so doing a soft restart to a UEFI shell and dumping RAM would work to some degree)
Passmark analogies are analogies simply meant to assist readers with ideas.
If you spared the time to look into IoT devices/boards you would understand there is supports for your point of view…
Certainly seems like there are a lot of varied opinions here.
Certainly seems like there are a lot of varied opinions here.
There is very little variation actually.
There is NO retention of data in RAM after a VERY short period it is not powered.
The last character in the above sentence is a full stop or period.
If the RAM is powered that is another case (that DOES NOT apply to not powered RAM, that is a case where the RAM is thought WRONGLY to be not powered).
If the RAM is frozen at several degrees below zero WHILE it is powered, you have seconds, at the most minutes to retrieve (very likely only parts of) its contents (this DOES NOT apply to real world).
The paper by Professor Guttmann (not entirely unlike the more known one about data retention and wiping techniques on conventional rotating hard disks) is essentially a theoretical examination of possibilities (nothing that applies to the real world, actually the "semiconductor" paper is from 2001 and since then there is no evidence that anyone EVER recovered ANYTHING using those theories).
jaclaz