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Question Beginner Can't re-install Pop! OS

Gord10

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Aug 1, 2020
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Hello,

I installed Pop! OS as the second OS to my computer a few weeks ago. It used to work perfectly. But for some reason, it doesn't boot anymore. So I'm trying to re-install the OS from DVD.

When "Try or install ..." screen comes, I press arrow keys, booting message disappears. Then I press enter. Texts flow on black background.

"ata1: SATA link down"
"ata1: hard resetting link"
"AHCI controller unavailable"
"nvme nvme0 controller is down will reset"

are some of the interesting warnings I get.

Some things to note:
* Secure boot is disabled
* AHCI is enabled
* I had to move the computer case to a different room, then brought back to my study room today. Maybe a loose contact or something?
* I had changed the names and sizes of partitions at my SSD. I guess the name of partitions where Pop! OS stays also changed.
 

evertiro

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The additional failure when you try start the installer would seem to indicate that whether or not you messed something up when you resized partitions, that's not relevant to the issue at hand. In theory, the installer shouldn't complain about much of anything that's on a hard drive, as long as it has some level of access to the hard drive. Worst case would be if it was a format the live image didn't understand, but that'd still give you the option to simply wipe the hard drive and restart.

Since you're experiencing a specific error in the installer, that would seem to indicate a hardware issue of some sort. I'd say the obvious first step is to go into BIOS and see if it detects your hard drive, particularly since you said you just moved the computer twice. While I've never had it happen personally, cables and cards wiggling loose certainly does happen. Since you can get far enough to reach the "Try or install..." screen, we can obviously rule out issues with the motherboard and video card... that just leaves a few options, so start with the things you can quickly test.
 

Gord10

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Aug 1, 2020
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Thank you for the reply!

Both of the storages (SSD and HDD) are detected in the BIOS. I can use them in Windows without any problems.
 

Gord10

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Aug 1, 2020
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I have been searching about how to SMART check without booting to Linux (because I can't boot to Linux) and without floppy disk, I couldn't find anything useful.

Windows say that my disks don't have problems, though. And I can use the disks.
 

Gord10

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Aug 1, 2020
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Thanks.

The HDD seems without problems, I did short self test and conveyance self test. However, SSD (which I use for OS's) is seen as Unknown Model and I can't do tests on it. Does it mean it has failures?

 

TeamLinux01

Member
May 5, 2019
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Thanks.

The HDD seems without problems, I did short self test and conveyance self test. However, SSD (which I use for OS's) is seen as Unknown Model and I can't do tests on it. Does it mean it has failures?

Most SSDs do have S.M.A.R.T. data, reporting the make and model, so that could indicate it is failing.
I have seen failing HDDs that don't communicate properly, either showing up as unknown models or displaying weird information.
 
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evertiro

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evertiro.com
Most SSDs do have S.M.A.R.T. data, reporting the make and model, so that could indicate it is failing.
I have seen failing HDDs that don't communicate properly, either showing up as unknown models or displaying weird information.
Excellent feedback! And spot on. While it's possible for a hard drive to report as unknown without failing (such as a drive that doesn't support SMART, though that's fairly rare these days, particularly with SSDs), the failure to report could VERY WELL indicate a failure or pending failure.
 

Gord10

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Aug 1, 2020
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Oh, okay. Do you know if that SSD failure can be fixed? I opened the case, SSD looks steady, I don't think there is loose connection.
 

TeamLinux01

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May 5, 2019
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Oh, okay. Do you know if that SSD failure can be fixed? I opened the case, SSD looks steady, I don't think there is loose connection.
You should see if there are any firmware updates to the SSD from the manufacturer and apply those. That could correct any problems with the SATA controller programming on the SSD, if that is the issue.
 

Gord10

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Aug 1, 2020
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We (me and a friend of mine) solved the problem by plugging the DVD driver to another slot in motherboard. I still don't know if my SSD is faulty, but it works good.

Thank you everyone for helping.
 

TeamLinux01

Member
May 5, 2019
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One of the tricky things I had to deal with recently was a bad SATA cable. Without having replacement parts on hand, it is hard to figure out what can go wrong.
 

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