here i tried to install Ubuntu 24.04 mate but i got this error
then i tried to install Ubuntu 23 and 22 i got this error
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On this thread in the forum you will see a similar issue and one of the forum members suggested to run Ubuntu live from usb and enter a code - you may find the link here:
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thank you i will try it and will be back to you soon 
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yesterday i tried to install ubuntu on the external ssd
Yesterday, I tried again and I was able to install an ubuntu without issues, but the problem was The laptop did not take off from the hard disk, The laptop was not taken out of the external ssd installed on the system.
you can see the system is install it on ssd
i have a video for the issue can i upload it ?
Hi, @dsl 
You've asked:
You won't be able to upload a video in a post / reply here in the "Ubuntu MATE Community" but, if the video is available in some well-known video / "tube" web sites (like "YouTube" or "Vimeo"), you will be able to do something that is almost the same: if you add a link to the URL of a "YouTube" or "Vimeo" video in a single line in your reply, that video will get "embedded" in your reply in place of that URL
For instance, writing the following "YouTube" video URL in a line by itself:
https://www.youtube.com/watch?v=_XemvaO6rco
... it will get expanded / replaced by the corresponding embedded video:
Same thing for a "Vimeo" video URL:
https://vimeo.com/1033273681/68aa38d34a
... which will also get expanded / replaced by the corresponding embedded video:
I hope this helps
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the ssd is working the issue for the laptop i have a Lenovo Thinkpad X270 the issue the laptop is not enter it to external SSd
this is the video
https://www.veed.io/view/98bcd347-affe-4457-8c87-358b3501333b?panel=share
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Hi, @dsl
According to the following article from the Lenovo web site, in some cases it may be necessary to disable the "Secure Boot" option in your BIOS / UEFI settings of your "Lenovo ThinkPad X270" to be able to boot from the external USB connected hard drive:
From that web page, let me quote here the relevant section:
" (...)
4. Secure Boot: (optional)
- For systems with secure boot enabled, you might need to disable secure boot in BIOS/UEFI settings.
- If you need to disable secure boot to boot from a USB device, see this link: Disabling Secure Boot. Disabling secure boot may be necessary as it can sometimes prevent the system from recognizing and booting from external devices.
(...)"
( For extra caution, you may wish to backup first the important data that you may have in your "Debian" installation to some other external hard drive, just in case something goes wrong when trying to change the BIOS / UEFI settings )
I hope this helps. Please keep us posted
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