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    The TPM is typically described by the ACPI tables set up by the bios. If dmesg | grep -w tpm doesn't give messages about initializing a tpm then you haven't got one which is recognised by the kernel. Most laptops and desktops don't have TPMs, they are pretty standard on machines sold as servers (i.e. things big enough to run IPMI), and also on chromebooks where they are part of the security story. Commented Feb 1, 2017 at 1:17
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    To play, ibm developed a soft tpm you can compile and run, and there is also this easier to use emulator. Commented Feb 1, 2017 at 10:31
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    all replies here look at some file somewhere called *tpm*, but how can i get direct info about the tpm hardware installed? A file might be misplaced, or maybe it is refering to a "software" tpm-emulator !!? Commented Dec 29, 2023 at 8:07