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My device has 2 harddisks (ssd + windows and hdd) on the hdd I want to install ubuntu, I already tried to install it from usb (set it up with rufus, parameters: partition scheme - MBR, target system - BIOS or UEFI, file system - FAT32(default)) but at the end of the installation came the error "unable to install GRUB in /dev/sda/" as I understand ubuntu installed because the second attempt, the partition I allocated was already taken by ubbtu. I checked the properties of the disc I want to install the system on and there was an MBR, I don't really understand what it is, but somehow that's why I can't install the GRUB cobbler. I am new to installing systems and please help anyone who can.

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    You've not mention what Ubuntu product or release you're asking about. Ubuntu has a number of products which have their own releases, and not all use the same installers (with a total of 5 installers available selected by ISO). Are we to guess which you're asking about? as there are slight differences between them. I'm also not sure what you mean by MBR; normally it's master boot record which relates to booting (cf. uEFI) but you maybe referring to partition table - but we don't know which installer you attempted to use. – guiverc Apr 13 '23 at 11:32
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    Please be clear & full with details; Ubuntu 20.04 LTS Server (uses the subiquity installer), Ubuntu 20.04 LTS Desktop (using the ubiquity installer), or flavors (which can use ubiquity or calamares).. You've added the release (20.04) but still haven't indicated if Server, Desktop (or less likely, but flavor too). (20.04.6 is the latest ISO/release of 20.04 instead of the older one you mention which is short of many fixes that exist on the later ISOs) – guiverc Apr 13 '23 at 11:45
  • You may want to edit the title of the question. It does not match what you are asking. – David Apr 13 '23 at 12:02

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