I have an triple-booting iMac (Linux Mint, OSX, WINDOWS 10) with rEFInd installed. The following partitions listed using sudo gdisk -l in Linux Mint 17.3:
Number Start (sector) End (sector) Size Code Name
1 40 409639 200.0 MiB EF00 EFI system partition
2 409640 487684319 232.4 GiB AF00 Customer
3 487684320 488953855 619.9 MiB AB00 Recovery HD
4 488953856 1074888703 279.4 GiB 0700 WINDOWS
5 1074888704 1949616127 417.1 GiB 8300 LINUX
6 1949616128 1953523711 1.9 GiB 0700 SWAP
The triple boot worked fine until I upgraded from Linux Mint 17.2 to 17.3. After that, I can't select Windows on startup anymore. It seems that the upgrade to 17.3 broke the Windows EFI boot entry (?)
I tried to resolve my issue using the solution listed here: How can I repair the Windows 8 EFI Bootloader
Unfortunately my EFI system partition is not even listed in Windows when I run diskpart and list vol. So I can't assign a drive letter to this partition and run bootrec /fixboot. Does anybody know why it is not listed or how to get Windows 10 back to rEFInd boot menu? My EFI partition is formatted in Fat32.
I had the same trouble when upgrading from linux mint 17.1 to 17.2. At that time I reinstalled windows, which I don't want to do again.
Update 1 - more infomation
rEFInd is still booting, but the windows entry disappeared. There is now an additional linux option "Linux on Windows", which will start linux mint. Here is the results.txt of boot info script: info-script-1. And this one after I ran Windows Repair Disk info-script-after-windows-startupfix
Update 2 - Windows partition: gdisk x -> n -> p
I followed the advise of Ron Smith and used gdisk with x, n and then p (I did not select w yet):
$ sudo gdisk /dev/sda4
GPT fdisk (gdisk) version 0.8.8
Partition table scan:
MBR: MBR only
BSD: not present
APM: not present
GPT: not present
***************************************************************
Found invalid GPT and valid MBR; converting MBR to GPT format
in memory. THIS OPERATION IS POTENTIALLY DESTRUCTIVE! Exit by
typing 'q' if you don't want to convert your MBR partitions
to GPT format!
***************************************************************
Exact type match not found for type code 7200; assigning type code for
'Linux filesystem'
Exact type match not found for type code 6C00; assigning type code for
'Linux filesystem'
Warning! Secondary partition table overlaps the last partition by
3303746485 blocks!
You will need to delete this partition or resize it in another utility.
Command (? for help): x
Expert command (? for help): n
Expert command (? for help): p
Disk /dev/sda4: 585934848 sectors, 279.4 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): F22799CE-8015-443C-9824-5CB92A0B68FE
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 585934814
Partitions will be aligned on 32-sector boundaries
Total free space is 585934781 sectors (279.4 GiB)
Number Start (sector) End (sector) Size Code Name
1 1920221984 3736432267 866.0 GiB 8300 Linux filesystem
2 1936028192 3889681299 931.6 GiB 8300 Linux filesystem
What I don't understand is the overlapping. sda4 is my windows partion and is only 279 GiB. What should I do about this warning?
Update 3 - Windows appears in rEFInd but still won't boot
Although startup repair failed (using windows installation dvd), windows appears now in rEFInd. But Windows still won't boot (blinking underscore) Windows Startup repair falied with the follwing message:
Startup Repair couldn't repair your PC
Press "Advanced options...
Log file: C:\Windows\System32\Logfiles\SrtTrail.txt
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