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I had a dual boot with Windows 8 and Ubuntu 19.10 with 90 GB of space. It was working perfectly fine. Then I upgraded to Windows 8.1 and I accidentally merged a 3.69 GB unallocated partition with a Windows volume. There is no problem with my windows. Then I tried to boot my Ubuntu, instead of the login screen I got a GNU grub terminal. Like this one - GNU GRUB Terminal - Instead of Ubuntu login screen . I tried doing boot-repair from live ubuntu. But there was no recommended repair. Here is my boot-repair log in pastebin. Will I be able to repair the ubuntu? If not, can I recover the files alone from my 90 GB ubuntu partition?

its-akhr
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  • Ubuntu 18.10 is EOL (end-of-life) thus off-topic on this site (refer https://askubuntu.com/help/on-topic), but that's also your problem. Being EOL, mirrors can drop the release, and the main archive moves to old-releases. Your tested & supported release-upgrade path is now also gone, as 18.10 upgraded to 19 04 which now too is EOL. Refer https://help.ubuntu.com/community/EOLUpgrades http://fridge.ubuntu.com/2019/07/19/ubuntu-18-10-cosmic-cuttlefish-end-of-life-reached-on-july-18-2019/ In your case I'd suggest backing up data & install a supported release.. – guiverc Jun 20 '20 at 08:59
  • Are you using Ubuntu 18.10? (or the 2018-October release), the 'live' media you used was not 18.10, but a supported (albeit outdated*) LTS or long-term-support release. – guiverc Jun 20 '20 at 09:01
  • Sorry. It was 19.10. Not 18.10 – its-akhr Jun 20 '20 at 09:03
  • From your boot-repair log, there doesn't seem to be an ext4 partition. I suspect your Win 8.1 upgrade may have overwritten your Ubuntu partition. I hope you had a backup of your files. – To Do Jun 20 '20 at 09:32
  • I didn't have a backup. So my 90 GB is just garbage? I need to be sure before I reinstall Ubuntu 20.04. – its-akhr Jun 20 '20 at 09:46
  • @ToDo Are you sure it's not recoverable? – its-akhr Jun 20 '20 at 10:48
  • Your best bet is to: 1. STOP using the computer. 2. Try testdisk from a liveUSB. However, since this was not simply a partitioning error, but an actual OS install, many files might have been overwritten for good. I have little experience with testdisk, but it can recover what is recoverable, – To Do Jun 22 '20 at 07:00

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