Thanks for the help. My laptop came with windows pre-installed. The first ubuntu I installed was 12.10 I do not remember how I did it (I followed a tutorial of the time). I just have been updating the system since then, and everything has worked fine until now. The output from blkid is as follows:
/dev/sda1: LABEL="ESP" UUID="5251-F902" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="b032ab5d-1a06-4b52-afcb-14954b4b6ab8" /dev/sda2: LABEL="DIAGS" UUID="D8B9-CFAA" TYPE="vfat" PARTLABEL="Basic data partition" PARTUUID="894a2bd8-619f-406f-9d3a-89583bce90c1" /dev/sda4: LABEL="WINRETOOLS" UUID="D210BAE110BACC2B" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="ca0006ab-9fa9-4990-af37-b2979183716d" /dev/sda5: LABEL="OS" UUID="FC48BE7B48BE33EC" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="fe43cb74-06a7-4cea-bfb9-eec6d0c8c77d" /dev/sda7: LABEL="PBR Image" UUID="04CEF99BCEF98568" TYPE="ntfs" PARTLABEL="Microsoft recovery partition" PARTUUID="ed4ceb90-ddb0-48f0-a50a-494fa7bc7d06" /dev/sda9: UUID="b22addc5-b969-47bf-a154-f91b6a137dd6" TYPE="ext4" PARTUUID="c294885b-877a-44f8-8ee4-ac06e95db88e" /dev/sda10: UUID="5cc07bc2-7247-40b6-8290-7edef8b4a39d" TYPE="ext4" PARTUUID="2dc51211-b2f4-4f35-9ec8-24f406045e3b" /dev/sda11: UUID="0aa517c8-aed2-446f-91c2-ecb573598a6d" TYPE="ext4" PARTUUID="6cda9a49-4e81-4c03-b267-fc4aefbe8755" /dev/mapper/cryptswap1: UUID="fc121bf9-d660-4721-b51e-d8e13cc14e70" TYPE="swap" /dev/sda3: PARTLABEL="Microsoft reserved partition" PARTUUID="c81f37b4-4bfd-418a-ab28-d79d1b668607" /dev/sda6: PARTUUID="675c3706-0cbd-4878-b725-9e3c1b4c83a5" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1575813 Title: Dual boot does not work after upgrade to 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shim-signed/+bug/1575813/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs