[Bug 1575813] Re: Dual boot does not work after upgrade to 16.04

[gamx]

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"

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https://bugs.launchpad.net/bugs/1575813

Title:
  Dual boot does not work after upgrade to 16.04

Status in shim-signed package in Ubuntu:
  Invalid

Bug description:
  I upgraded from 15.10 to 16.04. The process was not completed
  apparently due a problem with shim-signed. I now find the following
  message every time I try to update the system:

  Setting up shim-signed (1.12+0.8-0ubuntu2) ...
  Installing for x86_64-efi platform.
  grub-install: error: cannot find EFI directory.
  dpkg: error processing package shim-signed (--configure):
   subprocess installed post-installation script returned error exit status 1
  Errors were encountered while processing:
   shim-signed
  E: Sub-process /usr/bin/dpkg returned an error code (1)

  Furthermore, I have a dual boot system with Windows and Ubuntu but
  only the latter works. Something seems to have gone south with UEFI. I
  attach the efibootmgr output. My /etc/fstab looks as follows

  # <file system> <mount point>   <type>  <options>       <dump>  <pass>
  # / was on /dev/sda10 during installation
  UUID=5cc07bc2-7247-40b6-8290-7edef8b4a39d /               ext4    errors=remount-ro 0       1
  # /boot was on /dev/sda9 during installation
  #UUID=b22addc5-b969-47bf-a154-f91b6a137dd6 /boot           ext4    defaults        0       2
  # /home was on /dev/sda11 during installation
  UUID=0aa517c8-aed2-446f-91c2-ecb573598a6d /home           ext4    defaults        0       2
  # swap was on /dev/sda8 during installation
  #UUID=64342e46-54ea-46bf-826e-5667367e2301 none            swap    sw              0       0
  /dev/mapper/cryptswap1 none swap sw 0 0
  UUID=b22addc5-b969-47bf-a154-f91b6a137dd6	/boot	ext4	defaults	0	2
  #UUID=5251-F902	/boot/efi	vfat	defaults	0	1
  #UUID=b032ab5d-1a06-4b52-afcb-14954b4b6ab8	/boot/efi	/dev/sda1: PARTLABEL=	defaults	0	1

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