Zorin OS does not return after updating the system

I built a computer and installed Zorin OS 15 Lite (at the time). It always worked perfectly.
Last week I had the idea to install both (Lite and Core) with shared /home. I did this on all my notebooks successfully.
But on my main work machine, the one that was running Zorin OS Lite 16 (I had already updated) something very strange happens.
Every time I’ve tried, and I’ve tried more than 3 times in different ways, the same thing happens.
I installed the system, it restarted perfectly.
I download system updates, and after restarting it gets a black screen. (monitor on, but no image)
I installed Core and Lite (with /home shared), only Core and only Lite. Every time the same thing happened.
After updating the system, I reboot and it doesn’t come back.
Has anyone seen this happen? Do you have any idea what it could be?
Thank you in advance for your attention : )
PS: I already updated the BIOS.
PS2: I have already tested the additional drivers available.
044d67e59d20ce6d1d93de80de7ea4b5c09df561

What happens if you boot with quiet splash disabled in GRUB?

Edit with preemptive instructions:

when you see GRUB use the arrow keys to select your boot option and press the e key. Then, remove quiet splash and press F10 to continue booting.

The screen goes black and nothing appears. If in the first few seconds I press F12 it shows the boot menu. F2 goes to BIOS. Other than that, I don’t know what can be done. When I choose ubuntu from the boot menu, it still doesn’t boot the system. I don’t know where I could do this. It’s really weird, but every time I turn it on the screen goes black, and the system doesn’t boot. Before updating I restarted the computer and the system came back. But after the update only the black screen and nothing else. So how could I resolve this? Thank you very much for your attention. : )

I just installed the system again and still haven’t updated. What kind of information can I collect now? I have just sudo apt update. : )

I would like to put the output of “sudo apt update” here, but apparently it is not possible, as it is limited to 2 links. But you can see the output in this link: Zorin OS does not return after updating the system - #25 by jackclever - Installing Zorin OS - Zorin Forum (Official Zorin OS forum), if you want. : )

You can post the terminal output in code brackets </>. Of course if the output is really long than a link is a possibility.

I ran a few tests as a test user with your output and it’s a newer user limitation. I was able to post it using a codeblock though. Just copy/paste the following 3 lines and replace the middle.

```
Put your output here
```

I would like to thank you for your attention. @Ulfnic @PatPlusLinux And I would like to say that I have already solved the problem. It didn’t go the way I would have liked, installing Zorin. But I couldn’t wait any longer, it had been a long time without my main machine. I found it strange that this happened. This same machine ran Zorin without any problems before this installation. The problem only happened after updating and installing the updates. Seeing the output of “apt update” I thought it was a problem with the servers, and I switched to the main server and in fact the output changed. But after restarting the same problem happened. I couldn’t wait any longer. Thanks again for your attention. : )
Just for information here is the output before and after switching to the main server.

Before:

clever@Pc-ZorinOSCore:~$ sudo apt update
Hit:1 Index of /ubuntu focal-security InRelease
Hit:2 Index of /zorinos/apps/ubuntu focal InRelease
Hit:3 Index of /ubuntu focal InRelease
Hit:4 Index of /stable/ focal InRelease
Hit:5 Index of /patches/ focal InRelease
Hit:6 Index of /zorinos/drivers/ubuntu focal InRelease
Hit:7 Index of /apps/ focal InRelease
Hit:8 Index of /drivers/ focal InRelease
Hit:9 Index of /zorinos/patches/ubuntu focal InRelease
Get:10 Index of /ubuntu focal-updates InRelease [114 kB]
Hit:11 Index of /zorinos/stable/ubuntu focal InRelease
Get:12 Index of /ubuntu focal-backports InRelease [108 kB]
Get:13 Index of /ubuntu focal-updates/main amd64 Packages [1.793 kB]
Get:14 Index of /ubuntu focal-updates/main i386 Packages [652 kB]
Get:15 Index of /ubuntu focal-updates/main Translation-en [330 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Ign:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata
Ign:39 Index of /ubuntu focal-updates/universe amd64 DEP-11 Metadata
Ign:40 Index of /ubuntu focal-updates/multiverse amd64 DEP-11 Metadata
Get:41 Index of /ubuntu focal-backports/main i386 Packages [34,8 kB]
Get:42 Index of /ubuntu focal-backports/main amd64 Packages [42,2 kB]
Get:43 Index of /ubuntu focal-backports/main Translation-en [10,1 kB]
Get:44 Index of /ubuntu focal-backports/main amd64 DEP-11 Metadata [9.572 B]
Get:44 Index of /ubuntu focal-backports/main amd64 DEP-11 Metadata [9.572 B]
Get:44 Index of /ubuntu focal-backports/main amd64 DEP-11 Metadata [9.572 B]
Get:44 Index of /ubuntu focal-backports/main amd64 DEP-11 Metadata [9.572 B]
Get:44 Index of /ubuntu focal-backports/main amd64 DEP-11 Metadata [9.572 B]
Get:44 Index of /ubuntu focal-backports/main amd64 DEP-11 Metadata [9.572 B]
Get:44 Index of /ubuntu focal-backports/main amd64 DEP-11 Metadata [9.572 B]
Get:44 Index of /ubuntu focal-backports/main amd64 DEP-11 Metadata [9.572 B]
Get:44 Index of /ubuntu focal-backports/main amd64 DEP-11 Metadata [9.572 B]
Get:44 Index of /ubuntu focal-backports/main amd64 DEP-11 Metadata [9.572 B]
Get:44 Index of /ubuntu focal-backports/main amd64 DEP-11 Metadata [9.572 B]
Get:44 Index of /ubuntu focal-backports/main amd64 DEP-11 Metadata [9.572 B]
Get:44 Index of /ubuntu focal-backports/main amd64 DEP-11 Metadata [9.572 B]
Ign:44 Index of /ubuntu focal-backports/main amd64 DEP-11 Metadata
Ign:58 Index of /ubuntu focal-backports/universe amd64 DEP-11 Metadata
Get:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Err:16 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata
File has unexpected size (277716 != 277676). Mirror sync in progress? [IP: 200.236.31.4 80]
Hashes of expected file:

Filesize:277676 [weak]
SHA256:c7eea177db777908a08dec2fc36173ac2f85eddf0969571d13e54ee7770521b8
SHA1:7e77264386998b0878ec3b33998241d0977e9854 [weak]
MD5Sum:05769ae7c10a452e846470305f950aa6 [weak]
Release file created at: Wed, 18 May 2022 11:15:51 +0000
Get:39 Index of /ubuntu focal-updates/universe amd64 DEP-11 Metadata [390 kB]
Err:39 Index of /ubuntu focal-updates/universe amd64 DEP-11 Metadata
Get:40 Index of /ubuntu focal-updates/multiverse amd64 DEP-11 Metadata [944 B]
Err:40 Index of /ubuntu focal-updates/multiverse amd64 DEP-11 Metadata

Get:44 Index of /ubuntu focal-backports/main amd64 DEP-11 Metadata [9.572 B]
Err:44 Index of /ubuntu focal-backports/main amd64 DEP-11 Metadata
File has unexpected size (9576 != 9572). Mirror sync in progress? [IP: 200.236.31.4 80]
Hashes of expected file:

Filesize:9572 [weak]
SHA256:fe5e2473867f2651d0a233bf62f0be7baa96341d76cb0b556b3ad889598627f8
SHA1:780ff723923a3e7afe433ca7ee0346ba739459cb [weak]
MD5Sum:005718e50a48095de2d60b38991208c1 [weak]
Release file created at: Wed, 18 May 2022 11:17:29 +0000
Get:58 Index of /ubuntu focal-backports/universe amd64 DEP-11 Metadata [30,8 kB]
Err:58 Index of /ubuntu focal-backports/universe amd64 DEP-11 Metadata
Fetched 253 kB in 20s (12,6 kB/s)
Reading package lists... Done
E: Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/focal-updates/main/dep11/Components-amd64.yml.xz File has unexpected size (277716 != 277676). Mirror sync in progress? [IP: 200.236.31.4 80]
Hashes of expected file:
- Filesize:277676 [weak]
- SHA256:c7eea177db777908a08dec2fc36173ac2f85eddf0969571d13e54ee7770521b8
- SHA1:7e77264386998b0878ec3b33998241d0977e9854 [weak]
- MD5Sum:05769ae7c10a452e846470305f950aa6 [weak]
Release file created at: Wed, 18 May 2022 11:15:51 +0000
E: Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/focal-updates/universe/dep11/Components-amd64.yml.xz
E: Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/focal-updates/multiverse/dep11/Components-amd64.yml.xz
E: Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/focal-backports/main/dep11/Components-amd64.yml.xz File has unexpected size (9576 != 9572). Mirror sync in progress? [IP: 200.236.31.4 80]
Hashes of expected file:
- Filesize:9572 [weak]
- SHA256:fe5e2473867f2651d0a233bf62f0be7baa96341d76cb0b556b3ad889598627f8
- SHA1:780ff723923a3e7afe433ca7ee0346ba739459cb [weak]
- MD5Sum:005718e50a48095de2d60b38991208c1 [weak]
Release file created at: Wed, 18 May 2022 11:17:29 +0000
E: Failed to fetch http://br.archive.ubuntu.com/ubuntu/dists/focal-backports/universe/dep11/Components-amd64.yml.xz
E: Some index files failed to download. They have been ignored, or old ones used instead.

After:

clever@Pc-ZorinOSCore:~$ sudo apt update
[sudo] password for clever:
Get:1 Index of /ubuntu focal InRelease [265 kB]
Hit:2 Index of /stable/ focal InRelease
Hit:3 Index of /patches/ focal InRelease
Hit:4 Index of /apps/ focal InRelease
Hit:5 Index of /drivers/ focal InRelease
Get:6 Index of /ubuntu focal-updates InRelease [114 kB]
Hit:7 Index of /zorinos/apps/ubuntu focal InRelease
Get:8 Index of /ubuntu focal-backports InRelease [108 kB]
Hit:9 Index of /zorinos/drivers/ubuntu focal InRelease
Hit:10 Index of /zorinos/patches/ubuntu focal InRelease
Get:11 Index of /ubuntu focal-security InRelease [114 kB]
Hit:12 Index of /zorinos/stable/ubuntu focal InRelease
Get:13 Index of /ubuntu focal/main amd64 Packages [970 kB]
Get:14 Index of /ubuntu focal/main i386 Packages [718 kB]
Get:15 Index of /ubuntu focal/main Translation-en [506 kB]
Get:16 Index of /ubuntu focal/main amd64 DEP-11 Metadata [494 kB]
Get:17 Index of /ubuntu focal/main DEP-11 48x48 Icons [98,4 kB]
Get:18 Index of /ubuntu focal/main DEP-11 64x64 Icons [163 kB]
Get:19 Index of /ubuntu focal/main DEP-11 64x64@2 Icons [15,8 kB]
Get:20 Index of /ubuntu focal/main amd64 c-n-f Metadata [29,5 kB]
Get:21 Index of /ubuntu focal/restricted amd64 Packages [22,0 kB]
Get:22 Index of /ubuntu focal/restricted i386 Packages [8.112 B]
Get:23 Index of /ubuntu focal/restricted Translation-en [6.212 B]
Get:24 Index of /ubuntu focal/restricted amd64 c-n-f Metadata [392 B]
Get:25 Index of /ubuntu focal/universe amd64 Packages [8.628 kB]
Get:26 Index of /ubuntu focal/universe i386 Packages [4.642 kB]
Get:27 Index of /ubuntu focal/universe Translation-en [5.124 kB]
Get:28 Index of /ubuntu focal/universe amd64 DEP-11 Metadata [3.603 kB]
Get:29 Index of /ubuntu focal/universe DEP-11 48x48 Icons [3.016 kB]
Get:30 Index of /ubuntu focal/universe DEP-11 64x64 Icons [7.794 kB]
Get:31 Index of /ubuntu focal/universe DEP-11 64x64@2 Icons [44,3 kB]
Get:32 Index of /ubuntu focal/universe amd64 c-n-f Metadata [265 kB]
Get:33 Index of /ubuntu focal/multiverse amd64 Packages [144 kB]
Get:34 Index of /ubuntu focal/multiverse i386 Packages [74,7 kB]
Get:35 Index of /ubuntu focal/multiverse Translation-en [104 kB]
Get:36 Index of /ubuntu focal/multiverse amd64 DEP-11 Metadata [48,4 kB]
Get:37 Index of /ubuntu focal/multiverse DEP-11 48x48 Icons [23,1 kB]
Get:38 Index of /ubuntu focal/multiverse DEP-11 64x64 Icons [192 kB]
Get:39 Index of /ubuntu focal/multiverse DEP-11 64x64@2 Icons [214 B]
Get:40 Index of /ubuntu focal/multiverse amd64 c-n-f Metadata [9.136 B]
Get:41 Index of /ubuntu focal-updates/main i386 Packages [652 kB]
Get:42 Index of /ubuntu focal-updates/main amd64 Packages [1.793 kB]
Get:43 Index of /ubuntu focal-updates/main Translation-en [330 kB]
Get:44 Index of /ubuntu focal-updates/main amd64 DEP-11 Metadata [278 kB]
Get:45 Index of /ubuntu focal-updates/main DEP-11 48x48 Icons [60,8 kB]
Get:46 Index of /ubuntu focal-updates/main DEP-11 64x64 Icons [98,3 kB]
Get:47 Index of /ubuntu focal-updates/main DEP-11 64x64@2 Icons [29 B]
Get:48 Index of /ubuntu focal-updates/main amd64 c-n-f Metadata [15,2 kB]
Get:49 Index of /ubuntu focal-updates/restricted amd64 Packages [976 kB]
Get:50 Index of /ubuntu focal-updates/restricted i386 Packages [24,3 kB]
Get:51 Index of /ubuntu focal-updates/restricted Translation-en [139 kB]
Get:52 Index of /ubuntu focal-updates/restricted amd64 c-n-f Metadata [520 B]
Get:53 Index of /ubuntu focal-updates/universe i386 Packages [679 kB]
Get:54 Index of /ubuntu focal-updates/universe amd64 Packages [924 kB]
Get:55 Index of /ubuntu focal-updates/universe Translation-en [207 kB]
Get:56 Index of /ubuntu focal-updates/universe amd64 DEP-11 Metadata [390 kB]
Get:57 Index of /ubuntu focal-updates/universe DEP-11 48x48 Icons [257 kB]
Get:58 Index of /ubuntu focal-updates/universe DEP-11 64x64 Icons [458 kB]
Get:59 Index of /ubuntu focal-updates/universe DEP-11 64x64@2 Icons [29 B]
Get:60 Index of /ubuntu focal-updates/universe amd64 c-n-f Metadata [20,7 kB]
Get:61 Index of /ubuntu focal-updates/multiverse i386 Packages [8.440 B]
Get:62 Index of /ubuntu focal-updates/multiverse amd64 Packages [24,4 kB]
Get:63 Index of /ubuntu focal-updates/multiverse Translation-en [7.336 B]
Get:64 Index of /ubuntu focal-updates/multiverse amd64 DEP-11 Metadata [944 B]
Get:65 Index of /ubuntu focal-updates/multiverse DEP-11 48x48 Icons [1.867 B]
Get:66 Index of /ubuntu focal-updates/multiverse DEP-11 64x64 Icons [2.497 B]
Get:67 Index of /ubuntu focal-updates/multiverse DEP-11 64x64@2 Icons [29 B]
Get:68 Index of /ubuntu focal-updates/multiverse amd64 c-n-f Metadata [596 B]
Get:69 Index of /ubuntu focal-backports/main i386 Packages [34,8 kB]
Get:70 Index of /ubuntu focal-backports/main amd64 Packages [42,2 kB]
Get:71 Index of /ubuntu focal-backports/main Translation-en [10,1 kB]
Get:72 Index of /ubuntu focal-backports/main amd64 DEP-11 Metadata [9.572 B]
Get:73 Index of /ubuntu focal-backports/main DEP-11 48x48 Icons [6.961 B]
Get:74 Index of /ubuntu focal-backports/main DEP-11 64x64 Icons [10,5 kB]
Get:75 Index of /ubuntu focal-backports/main DEP-11 64x64@2 Icons [29 B]
Get:76 Index of /ubuntu focal-backports/main amd64 c-n-f Metadata [864 B]
Get:77 Index of /ubuntu focal-backports/restricted amd64 c-n-f Metadata [116 B]
Get:78 Index of /ubuntu focal-backports/universe i386 Packages [12,8 kB]
Get:79 Index of /ubuntu focal-backports/universe amd64 Packages [22,7 kB]
Get:80 Index of /ubuntu focal-backports/universe Translation-en [15,5 kB]
Get:81 Index of /ubuntu focal-backports/universe amd64 DEP-11 Metadata [30,8 kB]
Get:82 Index of /ubuntu focal-backports/universe DEP-11 48x48 Icons [13,2 kB]
Get:83 Index of /ubuntu focal-backports/universe DEP-11 64x64 Icons [22,6 kB]
Get:84 Index of /ubuntu focal-backports/universe DEP-11 64x64@2 Icons [29 B]
Get:85 Index of /ubuntu focal-backports/universe amd64 c-n-f Metadata [804 B]
Get:86 Index of /ubuntu focal-backports/multiverse amd64 c-n-f Metadata [116 B]
Get:87 Index of /ubuntu focal-security/main amd64 Packages [1.453 kB]
Get:88 Index of /ubuntu focal-security/main i386 Packages [434 kB]
Get:89 Index of /ubuntu focal-security/main Translation-en [250 kB]
Get:90 Index of /ubuntu focal-security/main amd64 DEP-11 Metadata [40,7 kB]
Get:91 Index of /ubuntu focal-security/main DEP-11 48x48 Icons [18,3 kB]
Get:92 Index of /ubuntu focal-security/main DEP-11 64x64 Icons [35,5 kB]
Get:93 Index of /ubuntu focal-security/main DEP-11 64x64@2 Icons [29 B]
Get:94 Index of /ubuntu focal-security/main amd64 c-n-f Metadata [10,2 kB]
Get:95 Index of /ubuntu focal-security/restricted amd64 Packages [914 kB]
Get:96 Index of /ubuntu focal-security/restricted i386 Packages [23,0 kB]
Get:97 Index of /ubuntu focal-security/restricted Translation-en [130 kB]
Get:98 Index of /ubuntu focal-security/restricted amd64 c-n-f Metadata [520 B]
Get:99 Index of /ubuntu focal-security/universe i386 Packages [551 kB]
Get:100 Index of /ubuntu focal-security/universe amd64 Packages [703 kB]
Get:101 Index of /ubuntu focal-security/universe Translation-en [125 kB]
Get:102 Index of /ubuntu focal-security/universe amd64 DEP-11 Metadata [66,3 kB]
Get:103 Index of /ubuntu focal-security/universe DEP-11 48x48 Icons [33,1 kB]
Get:104 Index of /ubuntu focal-security/universe DEP-11 64x64 Icons [71,6 kB]
Get:105 Index of /ubuntu focal-security/universe DEP-11 64x64@2 Icons [29 B]
Get:106 Index of /ubuntu focal-security/universe amd64 c-n-f Metadata [14,4 kB]
Get:107 Index of /ubuntu focal-security/multiverse amd64 Packages [22,2 kB]
Get:108 Index of /ubuntu focal-security/multiverse i386 Packages [7.196 B]
Get:109 Index of /ubuntu focal-security/multiverse Translation-en [5.376 B]
Get:110 Index of /ubuntu focal-security/multiverse amd64 DEP-11 Metadata [2.464 B]
Get:111 Index of /ubuntu focal-security/multiverse DEP-11 48x48 Icons [29 B]
Get:112 Index of /ubuntu focal-security/multiverse DEP-11 64x64 Icons [2.638 B]
Get:113 Index of /ubuntu focal-security/multiverse DEP-11 64x64@2 Icons [29 B]
Get:114 Index of /ubuntu focal-security/multiverse amd64 c-n-f Metadata [512 B]
Fetched 49,8 MB in 8min 12s (101 kB/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
158 packages can be upgraded. Run 'apt list --upgradable' to see them.
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