When I had Win7 and Ubuntu 14.xx?, upgrading to Win10 just messed with GRUB to the point that I did not get a boot option. It just booted to Windows. Simple to fix with a boot loader repair disk. BUT, not this "upgrade". IT has to break the "system" so it cannot boot to any OS, even Windows.
What the Anniversary upgrade did to that laptop [not my main one] was messing up everything so bad that GRUB could not find any OSs in the laptop. Then when I deleted and reinstalled GRUB, via the repair disk, Windows tried to boot up so it could finish the install. The problem was Windows caused a file system error where the partition needed to be repaired before it continued. I never say such a bad install attempt.
I have worked with Linux on-and-off since the later 90's, for work and classes. I switched to Ubuntu as my default OS in 2009. Before that I had a Windows laptop and a Linux desktop.
This laptop - I am typing from - goes to Windows several times a month to keep it up-to-date. I Windows decides to go crazy like the other one, I will be very unhappy.
On 12/01/2016 10:36 AM, Paolo Debortoli wrote:
try: http://windowsreport.com/anniversary-update-destroys-boot-loader-dual-boot-config/ http://www.legendiary.at/2016/01/04/windows-10-update-changes-partition-table-and-breaks-grub/ I am a linux ubuntu user since 12 years and noticed that since win 8.1 it is hard to install and maintain dual boot systems. Paolo On Thursday, December 1, 2016 3:17 PM, Tim---Kracked_P_P---webmaster <[email protected]> wrote: This is not about LO but about MS crashing both the Windows file system and GRUB. If you have not run the Windows 10 Anniversary upgrade, you might want to consider it as a new OS install that crashes GRUB and messes with the Windows partition where it need major repair. Yesterday, I upgraded my older DELL laptop that runs both Windows 10 and Ubuntu 16.04. Win10 gave me a icon for the Anniversary Upgrade Assistant. IT took hours for the download and verify it. During the install, at about 30% complete, the install required a reboot. GRUB errors was all I got. I had to use a boot repair disk twice to get the laptop to be able to boot at all. When I was able to boot to Windows, it took about 20 minutes for Windows to auto-fix the file system. Then it took 6 more hours to finish the install. It took less time to install the Win7 to Win10 upgrade, than it took the Anniversary upgrade. Yes, MS messes with the GRUB system when it gets install alongside of Ubuntu, but it never caused so much trouble as it did yesterday afternoon to late evening. 6+ hours to install the upgrade and fix the laptop so it would boot again, was not expected.
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