Score:6

Does Ubuntu work with fast boot turned on?

mx flag

I'm not much of a tech savvy, so my question is that does Ubuntu work with fast boot turned on? I'm currently on windows and thinking about changing to Ubuntu on my main machine, I've tried Ubuntu before but not on my main machine, I want to install Ubuntu and completely uninstall windows 10 so I will not dual boot, And do I need to configure anything in the BIOS (UEFI) other than secure boot to off? Your help is appreciated.

jpbrain avatar
ca flag
It should work but there is not enough information about your system to tell. Fast boot it is not a problem.
Waseem Sibai avatar
mx flag
Thanks for replying, I'm going to try to install ubuntu now.
crip659 avatar
pl flag
If installing Ubuntu over Windows, then fast boot does not matter, it is wiped with Windows. BIOS/UEFI depends on your computer make and model.
Esther avatar
es flag
as an aside, you can definitely run Ubuntu with Secure Boot on. On HP laptops I know you may have to turn off "intel security something-or-other" in the BIOS, and this may vary depending on the computer, but you can usually leave Secure Boot.
Gabriel Staples avatar
cn flag
I'm voting to reopen. This question most definitely should not have been closed. It is clearly _not_ a duplicate of [Why disable Fast Boot on Windows 8 when having dual booting?](https://askubuntu.com/questions/452071/why-disable-fast-boot-on-windows-8-when-having-dual-booting) This question clearly states that it does NOT apply to dual-boot, and that question clearly states it _does_ apply to dual-boot. These are 2 distinct questions. Please reopen.
Score:17
cn flag

It depends.

  • If you share partitions under Windows and linux, then the option Windows Fast Startup in Windows should be turned off.
  • If you do not use any partition that Windows uses under Linux, you can leave Windows Fast Startup in Windows on.

With Windows Fast Startup turned on, as one of its tricks, Windows does not close the partitions it uses. To Linux, these partitions appear "dirty", and linux may either mount them read only or not mount them at all to prevent damage. If you do not use any of these volumes under Linux, that is not an issue, and you can leave Windows Fast Startup on.

Peter Cordes avatar
fr flag
i.e. fastboot means that a normal Windows "shutdown" is actually a form of "hibernate".
raj avatar
cn flag
raj
I was wondering what fast boot is, because I never saw such a thing in Ubuntu, good that you explained that it's a Windows feature :)
vanadium avatar
cn flag
As Peter Cordes mentionned, the effect is comparable with the 'hibernate' function in Linux (which, however, is disabled by default in many distros because may not work reliably depending on the hardware)
fr flag
A.L
I thought fast boot in BIOS was a setting to display less information before starting the OS. Are you referring to another type of fast boot? Update: it looks like the answer is about the Windows fast boot, as explained [here](https://askubuntu.com/questions/452071/why-disable-fast-boot-on-windows-8-when-having-dual-booting/452080#452080).
Oskar Skog avatar
us flag
@A.L Yes, they're referring to a Windows feature that is also called "fast boot". The BIOS/EFI fast boot feature doesn't need to be disabled.
ChanganAuto avatar
us flag
*(...) that is also called "fast boot"* except it isn't. It's Windows Fast Startup. Fast Boot is a firmware (UEFI) feature.
vanadium avatar
cn flag
@ChanganAuto If that is the case, then I will certainly adjust the term in the answer, thanks!
Kyselejsyreček avatar
mx flag
Does the rule apply to all file systems, or to NTFS-formatted partitions only? Would mounting a FAT32 or exFAT partition be safe with Fast Startup enabled, for example? And how about ext2/ext3/ext4 partitions mounted via WSL2 in Windows?
Kyselejsyreček avatar
mx flag
Sorry, I forgot to mention that I am referring to Windows 11, although WLS2 may apply to Windows 10 as well.
mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.