05-03-2014
Thanks for your suggestions,
Quote:
Originally Posted by
RudiC
When does it get stuck? During the "BIOS" part of the boot, or the linux part?
get stuck on bios status. Ubuntu does not come alive..
Quote:
Originally Posted by
hicksd8
Either:
1. Look in the PC BIOS to see if there's a setting (which may allow the machine to boot without a keyboard)
or
2. Buy another keyboard.
I will check once again bios settings.
All the best
Boris
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I recently tried to install Linux 7.2 on my home PC (Compaq), and it did not recognise my keyboard. I could not proceed with the installation as I could not type anything. I installed 6.2 and it worked fine???????????. I was wondering if anybody has encountered this problem (very frustrating).
... (4 Replies)
Discussion started by: camerja1
4 Replies
2. UNIX for Dummies Questions & Answers
When I created the redhat installation, I configured it to boot directly into GNOME, but now I want it to boot into the shell login screen. How can I change that?
Thanks. (1 Reply)
Discussion started by: dangral
1 Replies
3. Solaris
Ok, so I'm a bit new to the whole Unix/Linux thing, but I'm no stranger to dual booting...
However, the problem that I am having is that I am unable to create a dual boot with Unix (in this case I's using Sun Solaris 9.0 x86) and for linux either RH 9 or Mandrake 9.1, but for the purpose of just... (1 Reply)
Discussion started by: AndroidI6
1 Replies
4. Linux
I got Puppy linux and installed it on a usb stick.
In the BIOS i selected to boot from USB-FDD but it goes to my HD and ignores the USB stick,
What going on ?? (2 Replies)
Discussion started by: perleo
2 Replies
5. UNIX for Dummies Questions & Answers
i have some problem in linux booting
will u please help me
the problem is
i was using federo core 1 on my system
everything was fine
i made one entry in /etc/fstab file for accessing E
drive of WINDOWS XP
in that i had given file system as VFAT after
rebooting system it
was not... (1 Reply)
Discussion started by: great_indian
1 Replies
6. Linux
Hi
I have Fedora linux with XFCE desktop. I want to use Indic lanquage in that. I have installed unicode devnagri fonts. But I am not able to change my default keyboard layout. How can I change default keyboard layout in XFCE or through command line.
Thanks
NeeleshG (0 Replies)
Discussion started by: neel.gurjar
0 Replies
7. Ubuntu
Hi all,
We are using linux Redhat 9.
While booting the server, it says /proc not mounted and it says "Segmentation fault" and doesn't continue with booting.
Basically, it started while we inserted a pen drive and removed it without mounting and un mounting it. After removing the pen drive &... (1 Reply)
Discussion started by: mjdarm
1 Replies
8. Filesystems, Disks and Memory
Hello, we have a problem with our system, a machine with a RAID5:
- We can boot the system from CD only, if we try to boot from hard-disk the GRUB seems to be "freezed". What is the difference, why we can boot from CD if something is wrong?
- Allways we retreive an error like: "raid array is... (6 Replies)
Discussion started by: aristegui
6 Replies
9. Debian
Here is my question, a few years back I was sitting in an airplane and saw the movie display for all the passengers in the back of all the seats boot up. You could see the all too familiar boot-up-scrolling text that we are all used to with Linux. But probably only a few other folks on the plane... (2 Replies)
Discussion started by: caleb8
2 Replies
LEARN ABOUT CENTOS
tpm_quote_tools
TPM QUOTE
TOOLS(8) TPM QUOTE TOOLS(8)
NAME
TPM Quote Tools
PROGRAMS
tpm_mkuuid, tpm_mkaik, tpm_loadkey, tpm_unloadkey, tpm_getpcrhash, tpm_updatepcrhash, tpm_getquote, tpm_verifyquote
DESCRIPTION
TPM Quote Tools is a collection of programs that provide support for TPM based attestation using the TPM quote operation.
A TPM contains a set of Platform Configuration Registers (PCRs). In a well configured machine, some of these registers are set to known
values during the boot up process or at other times. For example, a PCR might contain the hash of a boot loader in memory before it is
run.
The TPM quote operation is used to authoritatively verify the contents of a TPM's Platform Configuration Registers (PCRs). During provi-
sioning, a composite hash of a selected set of PCRs is computed. The TPM quote operation produces a composite hash that can be compared
with the one computed while provisioning.
To use the TPM quote operation, keys must be generated. During provisioning, an Attestation Identity Key (AIK) is generated for each TPM,
and the public part of the key is made available to entities that validate quotes.
The TPM quote operation returns signed data and a signature. The data that is signed contains the PCRs selected for the operation, the
composite hash for the selected PCRs, and a nonce provided as input, and used to prevent replay attacks. At provisioning time, the data
that is signed is stored, not just the composite hash. The signature is discarded.
An entity that wishes to evaluate a machine generates a nonce, and sends it along with the set of PCR used to generate the composite PCR
hash at provisioning time. For this use of the TPM quote operation, the signed data is ignored, and the signature returned is used to val-
idate the state of the TPM's PCRs. Given the signature, the evaluating entity replaces the nonce in the signed data generated at provi-
sioning time, and checks to see if the signature is valid for the data. If so, this check ensures the selected PCRs contain values that
match the ones measured during provisioning.
A typical scenario for an enterprise using these tools follows. The tools expect AIKs to be referenced via one enterprise-wide Universally
Unique Identifier (UUID). The program tpm_mkuuid creates one.
For each machine being checked, an AIK is created using tpm_mkaik. The key blob produced is bound to the UUID on its machine using
tpm_loadkey. The public key associated with the AIK is sent to the entities that verify quotes. Finally, the expected PCR composite hash
is obtained using tpm_getpcrhash. When the expected PCR values change, a new hash can be generated with tpm_updatepcrhash.
The program to obtain a quote, and thus measure the current state of the PCRs is tpm_getquote. The program that verifies the quote
describes the same PCR composite hash as was measured initially is tpm_verifyquote.
SEE ALSO
tpm_mkuuid(8), tpm_mkaik(8), tpm_loadkey(8), tpm_unloadkey(8), tpm_getpcrhash(8), tpm_updatepcrhash(8), tpm_getquote(8), tpm_verifyquote(8)
Oct 2010 TPM QUOTE TOOLS(8)