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srhcop
Mission Specialist
Mission Specialist
  • 2,411 Views

EX280:Passphrase is needed to access the encrypted data after burning the iso image to the USB drive

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Hi,

Any suggestion why I am getting the passphrase required message as soon as I eject and insert the USB drive after completing the  dd if=~/Downloads/rhrexboot.iso of=/dev/sdb bx=512k

I was able to access the usb drive prior to this command.

Any idea what may be going wrong here?

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PetrCihlar
Moderator
Moderator
  • 2,402 Views

@srhcop , you do not need any password. Just make sure Secure Boot is disabled in your BIOS and boot from the USB stick. It is meant to boot. No need to reinsert it to your running Operating system after you create it.
The filesystem on the USB stick as well as the downloaded ISO are encrypted, hence reported as corrupted (ISO file) or asks for the password (USB stick).
Just boot from it, no. password knowledge is needed. The data will decrypt itself on the fly while booting. All is good as planned. 
Petr

Petr Cihlar

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4 Replies
srhcop
Mission Specialist
Mission Specialist
  • 2,408 Views

BTW, this is on Redhat 8 Lenovo system

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PetrCihlar
Moderator
Moderator
  • 2,403 Views

@srhcop , you do not need any password. Just make sure Secure Boot is disabled in your BIOS and boot from the USB stick. It is meant to boot. No need to reinsert it to your running Operating system after you create it.
The filesystem on the USB stick as well as the downloaded ISO are encrypted, hence reported as corrupted (ISO file) or asks for the password (USB stick).
Just boot from it, no. password knowledge is needed. The data will decrypt itself on the fly while booting. All is good as planned. 
Petr

Petr Cihlar
srhcop
Mission Specialist
Mission Specialist
  • 2,385 Views

@PetrCihlarThank you so much. I was unnecessarily burning USB after USB to see the output from lsblk as mentioned in the document.  I am able to boot using the USB and I think the only missing piece before I can take the test is to buy an external webcam.

Thanks again for your prompt response.

 

Regards,

-Srinivas

srhcop
Mission Specialist
Mission Specialist
  • 2,384 Views

Thank you.

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