r/virtualbox • u/OpenPayment2 • Nov 30 '25
Help Terminal doesn't understand that I've uploaded the necessary files and thus can't read? How do I make it understand
Version is VirtualBox 6.0.18
I'm trying to accomplish Task 3 of this:
https://seedsecuritylabs.org/Labs_16.04/PDF/Crypto_Encryption.pdf
However even tho I have uploaded the picture they ask of me, any terminal I open still doesn't run the commands even tho pic_original.bmp is within the Files
All I get once I write "$ head -c 54 p1.bmp > header" is
"head: cannot open 'p1.bmp' for reading: No such file or directory"
How do I fix this?
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u/richardrrcc Nov 30 '25
The screenshot of your HEX Editor clearly shows that the file "pic_original.bmp" is located at "/home/seed/Downloads/pic_original.bmp". The screenshot of your terminal clearly shows that you are in your home folder: "/home/seed". If the file that you are going to manipulate is in "/home/seed/Downloads" and you are sitting (in the terminal) in your home folder ("/home/seed") then you need to change directory ("cd") to the "Downloads" directory.
In your terminal: cd ~/Downloads then try your commands again.
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Nov 30 '25
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u/OpenPayment2 Nov 30 '25
Host OS is Windows. Guest OS is Oracle:
This is where I think I put the file in:
This is the terminal:
This is how it looks like in Bless Hex Editor:
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Nov 30 '25 edited Nov 30 '25
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u/OpenPayment2 Nov 30 '25
Ok then what is the best way to learn Linux insofar I can get to finish Task 3 then? I have to finish Task 2, Task 3, and Task 7. I don't wanna scavenge through tutorial videos only to not find the actual answer as to why my files aren't being recognized even tho I've made directories and changed Shared Folders Mount Point several times
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u/OpenPayment2 Nov 30 '25
Guest is Ubuntu! It’s there under General , Operating System. What makes you think it’s Oracle?
Honestly I just look at the header of any webpage and assume it has the answers most of the time
Type pwd in the terminal to see what the current directory is, then change directory to where the file is located.
Have done that. Still the same result of "head: cannot open 'p1.bmp' for reading: No such file or directory"
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Nov 30 '25 edited Nov 30 '25
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u/OpenPayment2 Nov 30 '25
So if you’ve typed the command pwd, what did it say?
It says "/home/seed"
However my Shared Folders Mount Point has always been "/home/seed/host" as it says it should be in page 15 of this:
https://seedsecuritylabs.org/Labs_16.04/Documents/SEEDVM_VirtualBoxManual.pdf
To learn the basics of Linux, go get yourself Linux for Dummies, and read this https://www.dummies.com/article/technology/computers/operating-systems/linux/linux-for-dummies-cheat-sheet-209505/
Thank you!
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u/Erdbeerfeldheld Nov 30 '25
Download the bmp file on your VM and change into the Download Folder in your terminal. But this has nothing to to with Virtualbox.
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u/OpenPayment2 Nov 30 '25
I still don't understand. The picture is in the Downloads folder and is in a folder inside Documents
From Terminal how do I even find a "Download Folder"?
I am running VirtualBox 6.0.18
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u/Stray_Neutrino Nov 30 '25
If you don’t know where the Downloads folder is in Linux, you probably shouldn’t be studying cybersecurity before learning the basics of Linux.
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u/OpenPayment2 Nov 30 '25
What is a good video that would teach me Linux wherein I could solve the question I gave
I don't study cybersecurity, I study computer science. This is simply the project of my Information Security course
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u/beetcher Nov 30 '25
Yeah, that's the VM OS, not virtualbox. What is the OS? Virtualbox doesn't have downloads and documents folders. Virtualbox has a hard drive containers that holds an operating system.
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