Sorun sanırım UEFI, sda ve sdb ile alakalı görünüyor. Ama henüz tam işin içinden çıkamadım.
============================= Boot Info Summary: ===============================
=> Grub2 (v2.00) is installed in the MBR of /dev/sda and looks at sector 1 of
the same hard drive for core.img. core.img is at this location and looks
for /boot/grub. It also embeds following components:
modules
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fshelp ext2 part_msdos biosdisk search_fs_uuid
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config script
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search.fs_uuid d71badb9-a5eb-4222-97d5-39b34d03a3ff root hd1,msdos5
set prefix=($root)'/boot/grub'
---------------------------------------------------------------------------
=> Grub2 (v2.00) is installed in the MBR of /dev/sdb and looks at sector 1 of
the same hard drive for core.img. core.img is at this location and looks
for (,msdos5)/boot/grub. It also embeds following components:
modules
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fshelp ext2 part_msdos biosdisk
---------------------------------------------------------------------------
sda1: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows 8/2012: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files:
sda2: __________________________________________________________________________
File system:
Boot sector type: Unknown
Boot sector info:
Mounting failed: mount: /mnt/BootInfo/sda2: unknown filesystem type ''.
sdb1: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows 8/2012: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /bootmgr /Boot/BCD
sdb2: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows 7/2008: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /Windows/System32/winload.exe
sdb3: __________________________________________________________________________
File system: Extended Partition
Boot sector type: -
Boot sector info:
sdb5: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Linux Mint 19.3
Boot files: /etc/fstab /boot/grub/i386-pc/core.img
sdb6: __________________________________________________________________________
File system: swap
Boot sector type: -
Boot sector info:
sdb7: __________________________________________________________________________
File system: vfat
Boot sector type: FAT32
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /EFI/ubuntu/grub.cfg /EFI/BOOT/fbx64.efi
/EFI/ubuntu/fwupx64.efi /EFI/ubuntu/grubx64.efi
/EFI/ubuntu/mmx64.efi /EFI/ubuntu/shimx64.efi
sdb4: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows 8/2012: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files:
Evet sorunu çözdüm. Tam da dediğim gibi, Windows (MBR-Legacy BIOS) ile kuruluymuş, Linux'ü ise (GPT-UEFI) olarak kurmuşum bu yüzden iki başlatıcı birbirini görmüyor. Şimdi Linux'ü silip MBR ile kurmayı deneyeceğim.