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I have a dual boot on Dell XPS with Windows and Ubuntu 20.04, it was working fine until I installed KDE desktop. Since then I'm having boot issues.

First time it happened I was able to fix it using boot-repair live CD. This happened again after a software update, boot-repair could not fix the issue. This is the log generated by boot-repair http://paste.ubuntu.com/p/vKDSynyVw5/ Is there a way to fix this.

I'm able to boot to Windows from Grub menu but not to Ubuntu. I tried changing to nomodeset but it didn't help.

kanna
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  • You have UEFI system. Make sure you do not turn on or try to boot in BIOS mode as you somehow installed a BIOS boot grub to gpt's protective MBR. That will not boot. Issue sounds more like Windows did an update & turned its fast start up back on and/or did a UEFI update & that reset some UEFI settings. Check UEFI settings & fast start up in Windows. http://askubuntu.com/questions/843153/ubuntu-16-showing-windows-10-partitions & https://askubuntu.com/questions/145902/unable-to-mount-windows-ntfs-filesystem-due-to-hibernation – oldfred Jan 25 '21 at 17:12
  • When I installed Ubuntu, I turned off fast boot, and I have only sleep and lock in shutdown settings. – kanna Jan 25 '21 at 17:21
  • Windows turns fast start up back on with updates. Fast boot is an UEFI setting that when making changes, should also be off. – oldfred Jan 25 '21 at 19:23
  • What I meant was, fast boot option is still turned off at the moment, since it was tuned. – kanna Jan 25 '21 at 20:52
  • Are you able to boot recovery mode, second entry in grub? It also looks like you have Intel RST still on. That often causes issues. – oldfred Jan 26 '21 at 03:47
  • Any question should always include the version of Ubuntu you are using. What version is it? – David Jan 26 '21 at 06:56
  • @oldfred In BIOS raid is not turned on. I could not boot into any entry. I used set debug=all it is getting stuck loading initrd image, command/verifiers.c:88: file /boot/initrd.img-5.8.0-40-generic type:131076 @David I have Ubuntu 20.04, update description. Even ls -l (hd1,gpt6)/boot/initrd.img-5.8.0-40-generic type:131076 on Grub menu hangs – kanna Jan 26 '21 at 10:54
  • Not familar with kernel errors. Does older kernel also give same error? – oldfred Jan 26 '21 at 14:25
  • At this point I don't know what really happened, command/verifiers.c:88 is from Grub. At the moment I'm trying to install Grub again from live CD. – kanna Jan 26 '21 at 15:21
  • Finally understood what happened. Boot-repair was done in legacy boot mode but my system is set up to use UEFI. Able to fix this by booting boot-repair usb in UEFI mode and then running the commands. – kanna Jan 26 '21 at 16:32

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