<div dir="ltr">I should have mentioned that was also assuming that you're using an ext filesystem. Your best bet might be to use gparted, otherwise. You'll still need to unmount the filesystem, but gparted allows you to assign new uuids.</div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Sun, Aug 10, 2025 at 12:23 PM Paul <<a href="mailto:pahool@gmail.com">pahool@gmail.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"><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"><div dir="ltr" class="gmail_attr">On Sat, Aug 9, 2025 at 1:20 PM Brian O'Keefe <<a href="mailto:okeefe@cybermesa.com" target="_blank">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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