Simply short: No.
tmpfs is, as the name suggests, a filesystem, which lives in the VFS
domain, whereas dmcrypt lives in the block layer.
So yes, ramdisks in the form of blockdevices will work. It might even
possibly work on a file within the tmpfs. (Give is a try [there's still
loopback devices..], afterall it's all volatile memory and fiddling
around does not need any extra work)
Regards
-Sven
Am 23.12.2015 um 20:05 schrieb H McCurdy:
Hi,
Is it possible to get crypt_init() to use a tmpfs instead of a block
device or a file?
I realize there are sanity issues related to such an inquiry because the
key is in RAM and so is the "disk." Regardless, I have the question.
BTW, an older ramdisk (/dev/ram0) does appear to work.
Hugh
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