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I have a dual boot with ubuntu and windows, windows in an SSD and ubuntu in an HDD, I want to switch them without having to reinstall anything. Also, I recently reinstalled ubuntu and had some problems, and somehow managed to delete windows boot manager and windows is not even appearing in grub.

Windows HDD

Ubuntu HDD

Sourav Ghosh
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Anonimeishon
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  • When you say switch drives, are you just wanting to boot Windows or reinstall Ubuntu on SSD & Windows on HDD? Lets see details, use ppa version with your live installer (2nd option) or any working install, not Boot-Repair ISO: Please copy & paste the pastebin link to the Boot-info summary report ( do not post report), do not run the auto fix till reviewed. https://help.ubuntu.com/community/Boot-Repair – oldfred Dec 18 '20 at 15:56
  • i want to know if it's possible to copy and paste my ubuntu to my ssd, and my windows to another partition in my hdd, besides of fixing the windows boot – Anonimeishon Dec 18 '20 at 16:39
  • Not easily with UEFI as each partition has UUID & GUIDs. They cannot be duplicates and GUID must be in primary partition table, backup partition table & partition. If out of sync, you have major issues. With Ubuntu often easier just to do a new install & restore from your normal backup. Good way to confirm backup includes everything as you still temporarily have old install. Do not know about Windows. – oldfred Dec 18 '20 at 17:28
  • I got this while doing the boot-repair, which, btw, didn't work :( https://paste.ubuntu.com/p/9zFhhQnZ2j/?fbclid=IwAR3IV7PbEZcAONcx9lvDv7q_T_0AcTphuvGebNQLskG6rdWIr_uyJPh_UCY – Anonimeishon Dec 18 '20 at 19:26
  • I think this is one of the rare cases where Boot-Repair made things worse. You have two gpt drives. Windows only boots in UEFI mode from gpt, but Boot-Repair thought Windows was BIOS as you are not showing an ESP with /EFI/Microsoft folder & .efi Windows boot files. You show two bios_grub partitions on sdb. And their total size is similar to a Windows ESP. But now you have sdb4 as the ESP. Do not know if Windows can use an ESP on sdb for booting Windows install on sda. But you need a Windows repair flash drive and boot it in UEFI mode. And remove all bios_grubs and repair Ubuntu in UEFI mode. – oldfred Dec 18 '20 at 21:25
  • since i didn't understand a thing (i'm noob at this), i think i might just have to format my windows drive :'c or do you think i should even try? XD – Anonimeishon Dec 19 '20 at 00:41
  • Do you have good backups of your data? From both Windows & Ubuntu? Can you try Windows repairs, but I do not know details on fixing Windows. – oldfred Dec 19 '20 at 04:26
  • yes, i have everything in sdb1, i just have installed programs in the OS drives, so yeah, i guess i'll lose my windows haha – Anonimeishon Dec 19 '20 at 15:49
  • You should have backups of /home, your data, and list of installed apps. https://askubuntu.com/questions/569679/whats-a-good-back-up-strategy-for-1-desktop-pc I also edit a couple of files (grub) in /etc, so I copy those into /home, so they get backed up. I use resync to another drive & multiple flash drives. http://askubuntu.com/questions/545655/backup-your-home-directory-with-rsync-and-skip-useless-folders & http://askubuntu.com/questions/17823/how-to-list-all-installed-packages – oldfred Dec 19 '20 at 15:58
  • I ended up just deleting windows and copying my ubuntu to the SSD :v thanks for everything – Anonimeishon Dec 23 '20 at 22:57

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I ended up deleting windows and switching completely to ubuntu, to swap the drives i just used Gparted to copy and paste every partition related to ubuntu to the new drive.

Anonimeishon
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