Hello, I'm new to the list.
I have a crypt device needs to be reliably unmounted and secured and I'd like to
avoid shutting down. Heres what I'm doing in bash to deal with failed commands:
cd /dev/mapper
fuser -km crypt-foo
umount crypt-foo || umount -l crypt-foo
cryptsetup luksClose crypt-foo || rm -f crypt-foo crypt-swap || halt
When it fails on cryptsetup and succeeds at "rm -f crypt-foo", is is the device
secure? Meaning it cannot be accessed without entering the key again. This is
not counting data that may have been read from the device and left in memory. I
assume powering off makes it secure, is that right? Any suggestions?
- Drew
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