<div dir="ltr"><div><div><div>It sounds like you may have cloned one partition to the other? This would explain them having the same uuid. You need to change the uuid of one of the partitions. <br><br></div>Let's say you want to change the uuid of /dev/sdb1. Make sure the partition is not mounted, then use:<br><br>`sudo tune2fs -U random /dev/sdb1`<br><br></div>That should do it. <br><br></div>This is untested on my part, so please do all the necessary backing up, etc. before trying. </div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Sat, Aug 9, 2025 at 1:20 PM Brian O'Keefe <<a href="mailto:okeefe@cybermesa.com">okeefe@cybermesa.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><u></u>
<div>
<p>Hello All</p>
<p>I'm revisiting an issue I expressed many months (if not years. I
have an ASUS laptop in which I wanted to install a 500GB SSD in
the vacant bay. I said at the time that the motherboard is up side
down so I can't remove the existing drive (a <span style="color:rgb(106,106,106);font-family:Pilat,Helvetica,Arial,sans-serif;font-size:16px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none">SSD
PLUS M.2 NVMe</span><sup style="box-sizing:inherit;border:0px solid rgb(246,246,246);font-size:12px;line-height:0;vertical-align:baseline;color:rgb(106,106,106);font-family:Pilat,Helvetica,Arial,sans-serif;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">TM</sup><span style="color:rgb(106,106,106);font-family:Pilat,Helvetica,Arial,sans-serif;font-size:16px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none"><span> </span>SSD,)
and replace with the 500GB SSD drive. I was able to get the
regular SSD into the bay and plug it in. It shows up in the BIOS
as two separate UUIDs (I have a bootable 313 GB partition and a
free space 193 GB partition. When I choose to try and boot the
313 GB partition the computer reverts to the drive stick. I
checked the UUIs and the 313GB has a different UUID than the
internal stick drive but the same as the 193 SSD. So for some
reason, even though I change the boot order so the 313GB boots,
the computer reverts to the onboard UUID and boots that. I don't
know how the 193 GB drive got the same UUID but it did.</span></p>
<p><span style="color:rgb(106,106,106);font-family:Pilat,Helvetica,Arial,sans-serif;font-size:16px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none">When
I boot the computer I get the option of booting Ubuntu 20.04 but
16.04 is also listed. That is the 313 GB which I was planning to
wipe and install 25.04. Perhaps I can wipe it with GParted and
try installing 25.04 on it.</span></p>
<p><span style="color:rgb(106,106,106);font-family:Pilat,Helvetica,Arial,sans-serif;font-size:16px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none">Sorry
about the long screed! I'd love to get the 313GB to boot 25.04
so I can see if it works on the old cloned 313GB drive with
16.04. If that worked I'd have a current back-up (I have one,
the unbootable 313GB drive which won't boot). I would then
upgrade the 313 GB drive after cloning the onboard drive. If the
cloned 313GB drive updated then I would have my current
mountains of data on the 313GB drive. But if it won't boot now
why would it boot later, after all of the work?</span></p>
<p><span style="color:rgb(106,106,106);font-family:Pilat,Helvetica,Arial,sans-serif;font-size:16px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none">Many
thanks if anyone wants to help. If not I completely understand</span></p>
<p><span style="color:rgb(106,106,106);font-family:Pilat,Helvetica,Arial,sans-serif;font-size:16px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none">Best</span></p>
<p><span style="color:rgb(106,106,106);font-family:Pilat,Helvetica,Arial,sans-serif;font-size:16px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;word-spacing:0px;white-space:normal;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none">Brian<br>
</span></p>
<div><img src="cid:ii_1989535ea6d61a917f31" border="0"></div>
</div>
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