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Continue to Chatswitch OS with grub https://hilfan.staff.telkomuniversity.ac.id/dual-boot-os-menggunakan-2-hardisk-dan-saklar/switch-os-with-grub/
switch OS with grub https://hilfan.staff.telkomuniversity.ac.id/dual-boot-os-menggunakan-2-hardisk-dan-saklar/switch-os-with-grub/