Don't use GRUB and UEFI together. Pick one or the other.

^ that up there is BS.

^ that up there is BS.

It was in response to a question about Arch.

Not Fedora.

It was in response to a question about Arch.

Still BS.

-.^

You got something better to do than get angry at people on the internet?

You got something better to do than get angry at people on the internet?

Point at the BS and FUD people spread...

That's nice, dear.

You've stated your opinion. Now move along.

Seriously GRUB just werks on UEFI.

He was having trouble running GRUB with UEFI. It's a common problem people have when first using Arch. Easy solution: use something simpler.

Yes, I could've given a much longer technical answer, but that's not particularly helpful.

If you're an advanced user, you already know what works for you and you can ignore it.

I've probably got GRUB + UEFI + Arch running on about 3 laptops sitting in my bedroom right now. I'm well aware that it works.

I've probably got GRUB + UEFI + Arch running on about 3 laptops sitting in my bedroom right now. I'm well aware that it works.

Then don't spread FUD like "Don't use GRUB and UEFI together. Pick one or the other."

@RaadOrfali, @pionen seems to think my advice is BS/FUD and will now do their part by walking you through the process of fixing GRUB.

Have fun!

@pionen, in all serious, please take into consideration who I'm talking to, what we're talking about, and the level of experience of the person with the difficulty. This is why the Linux community often scares away newcomers: people focus too much on being too technically accurate/complete, rather than getting things working and being friendly.

If you're a newcomer to Arch, then "pick one: UEFI or GRUB" is perfectly valid advice. It's a very common problem.

The first time through, you want the simplest configuration possible.

@pionen, in all serious, please take into consideration who I'm talking to, what we're talking about, and the level of experience of the person with the difficulty. This is why the Linux community often scares away newcomers: people focus too much on being too technically accurate/complete, rather than getting things working and being friendly.

If he is a newbie then Arch might not be the best Linux distribution to start with. I will suggest to him to give a try to Fedora, which also work flawlesly in UEFI mode and with GRUB.

Obviously, yes

But everyone likes to play with something dangerous once in a while

When people want to give something like Arch a try, it's helpful to limit the number of choices and keep the configuration simple.

As they grow more comfortable, they can customize it further and work their way toward more advanced configurations.

Something as seemingly mundane as running update-grub could throw off a lot of newcomers--especially since "sane" distros like Fedora handle that step for you.

If you're a newcomer to Arch, then "pick one: UEFI or GRUB" is perfectly valid advice. It's a very common problem.

Sorry I couldn't answer on time as I was driving, just to explain that no I am now newbie as I am a RHCSA and RHCVA v6 but and I confirmed my laptop as two hard disks one pre installed Windows and the second one I replaced the blue ray DVD with a 1tb hard disk which I partitioned it to run main Fedora and second Ubuntu and Arch, but when it reaches the grub v2 and efi I am mid range. As I mentioned the 4 os was running fine till updated Fedora to efi which brakes the other OS boot, I tried to follow arch wiki to configure it but I had a clue as I know that all the kernel should be in /boot and efi or grub folders will be inside it but the new arch article says that I should mount the fat32 partition inside efs and copy the kernel inside it so where is /boot gone and how this can integrate the other os

Sorry I couldn't answer on time as I was driving, just to explain that no I am now newbie as I am a RHCSA and RHCVA v6 but and I confirmed my laptop as two hard disks one pre installed Windows and the second one I replaced the blue ray DVD with a 1tb hard disk which I partitioned it to run main Fedora and second Ubuntu and Arch, but when it reaches the grub v2 and efi I am mid range. As I mentioned the 4 os was running fine till updated Fedora to efi which brakes the other OS boot, I tried to follow arch wiki to configure it but I had a clue as I know that all the kernel should be in /boot and efi or grub folders will be inside it but the new arch article says that I should mount the fat32 partition inside efs and copy the kernel inside it so where is /boot gone and how this can integrate the other os

The FAT32 partition is the EFI partition. There's no predetermined location to mount it if you separate it from boot iirc

The EFI partition can hold /boot, but I forget what the tradeoffs are

I believe this is what I did most recently: https://wiki.archlinux.org/index.php/EFI_System_Partition#Using_bind_mount

The EFI partition can hold /boot, but I forget what the tradeoffs are

This was poorly worded; the EFI partition doesn't need to be mounted directly to /boot, and depending on what you were trying, that might've been where things got messed up.

You are right, the FAT32 partition is the ESP. But, if you are installing/booting in UEFI mode the ESP partition must be mounted on /boot/efi, and /boot/ must be in another partition. Every single OS installed in the laptop must have its own /boot/ but the same ESP must be mounted on /boot/efi directory. This partition should never be wiped/reformated, in that case you will lose the *efi files from other systems. A now issue with Fedora and many other OS is that os-prober fails to identify the other previously installed OS's. So, in this case, Fedora installer will not automatically add the entries to the other OS to GRUB, to make it work you will need to "chainload them" or say link them to Fedoras GRUB.

You are right, the FAT32 partition is the ESP. But, if you are installing/booting in UEFI mode the ESP partition must be mounted on /boot/efi, and /boot/ must be in another partition. Every single OS installed in the laptop must have its own /boot/ but the same ESP must be mounted on /boot/efi directory. This partition should never be wiped/reformated, in that case you will lose the *efi files from other systems. A now issue with Fedora and many other OS is that os-prober fails to identify the other previously installed OS's. So, in this case, Fedora installer will not automatically add the entries to the other OS to GRUB, to make it work you will need to "chainload them" or say link them to Fedoras GRUB.

Nah, not for arch; I never use /boot/efi

I use /esp

And you can have /boot be on the same partition. The instructions on the wiki are very unclear. You can keep the images on the ESP

Nah, not for arch; I never use /boot/efi

Seriouly, once againg this worked for me with Arch, Ubuntu, Fedora, Debian and OpenSUSE. But if you are looking for more than one linux distribution alonside Windows you will need to chainload them... say link the *.efi files from the other OS to Fedoras GRUB.

Seriouly, once againg this worked for me with Arch, Ubuntu, Fedora, Debian and OpenSUSE. But if you are looking for more than one linux distribution alonside Windows you will need to chainload them... say link the *.efi files from the other OS to Fedoras GRUB.

Yeah, you can do it

But it's not the wiki says to do :P

The wiki basically says "other distros use /boot/efi or /boot/EFI, here's a list of 20 other ways you can do it"

In this case, I must agree with you, installing more than one linux distribution alonside Windows is not an easy task, but doable.

In this case, I must agree with you, installing more than one linux distribution alonside Windows is not an easy task, but doable.

In UEFI mode.

Definitely doable

The instructions on the wiki are just lousy for GRUB + UEFI

You're better off looking at how other distros do it and copying that unless you have some reason to do it differently

(which is /boot/efi)

I had some reason for keeping it completely separate, but I don't remember what it was. I had to do some insane patching to get Linux running on that device, though.

I have done this before: https://help.ubuntu.com/community/Grub2/CustomMenus#Using_Only_a_Custom_Menu

Until Windows decides it's just going to replace everything on the ESP lol

And here are some samples: https://help.ubuntu.com/community/Grub2/CustomMenus#Sample_Menuentries

You are right, the FAT32 partition is the ESP. But, if you are installing/booting in UEFI mode the ESP partition must be mounted on /boot/efi, and /boot/ must be in another partition. Every single OS installed in the laptop must have its own /boot/ but the same ESP must be mounted on /boot/efi directory. This partition should never be wiped/reformated, in that case you will lose the *efi files from other systems. A now issue with Fedora and many other OS is that os-prober fails to identify the other previously installed OS's. So, in this case, Fedora installer will not automatically add the entries to the other OS to GRUB, to make it work you will need to "chainload them" or say link them to Fedoras GRUB.

This I exactly what I know but arch wiki mentioned to mount Fat32 partition in esp then bind mounted as /boot that's way I confused

You shouldn't need to customize it quite that much if you keep the entirety of /boot on the ESP, which might be the simplest way to do it, but I don't think I've ever done that

This I exactly what I know but arch wiki mentioned to mount Fat32 partition in esp then bind mounted as /boot that's way I confused

Yeah, don't do that one

You'll need a custom root param for that

This I exactly what I know but arch wiki mentioned to mount Fat32 partition in esp then bind mounted as /boot that's way I confused

Are you running Fedora right now?

If you do what @pionen was saying with /boot/efi, you'll probably have a more stable multi-boot system

I had some reason for keeping it completely separate, but I don't remember what it was. I had to do some insane patching to get Linux running on that device, though.

As I mentioned in my case it is separate hard disks but only mounting windows efi inside /boot, can I create another efi in the Linux disk? As I know I should has one esp partition?

As I mentioned in my case it is separate hard disks but only mounting windows efi inside /boot, can I create another efi in the Linux disk? As I know I should has one esp partition?

I guess... you should have the ESP in the main HDD/SSD, you don't need to add a new ESP, the only case in which a new ESP is required is when doing a RAID0 array if I'm not mistaken.

And you can have more than one disk as long you mount the ESP stored in the main HDD on /boot/efi withou wiping it. I will suggest to install Windows at first on the main HDD, and later the other Linux Distribution on the other disks.

And you can have more than one disk as long you mount the ESP stored in the main HDD on /boot/efi withou wiping it. I will suggest to install Windows at first on the main HDD, and later the other Linux Distribution on the other disks.

This is exactly my setup nothing new

This is exactly my setup nothing new

Do you have any Linux distribution functional now?

Let's say I don't have grub installed, if you did not wipe the ESP you should have a way to access to the efi files via temporal boot options, like this:

You are right, the FAT32 partition is the ESP. But, if you are installing/booting in UEFI mode the ESP partition must be mounted on /boot/efi, and /boot/ must be in another partition. Every single OS installed in the laptop must have its own /boot/ but the same ESP must be mounted on /boot/efi directory. This partition should never be wiped/reformated, in that case you will lose the *efi files from other systems. A now issue with Fedora and many other OS is that os-prober fails to identify the other previously installed OS's. So, in this case, Fedora installer will not automatically add the entries to the other OS to GRUB, to make it work you will need to "chainload them" or say link them to Fedoras GRUB.

Do we have to do this for multi-booting Linux distros only? With UEFI enabled?

Do we have to do this for multi-booting Linux distros only? With UEFI enabled?

Actually Anaconda does it for you :)

Do we have to do this for multi-booting Linux distros only? With UEFI enabled?

The issues shows up when you try to have more than one linux distribution alongside Wiindows. For some reason, os-prober always manages to find Windows but it fails to add any other Linux Distribution to GRUB menu.

In that case you have to manually add it.

This is Debian GRUB with an option to load Fedora GRUB:

ERROR: S client not available

The issues shows up when you try to have more than one linux distribution alongside Wiindows. For some reason, os-prober always manages to find Windows but it fails to add any other Linux Distribution to GRUB menu.

I`ve triple/ quad booted Linux distros (ONLY) on my BIOS; how different will my experience be on UEFI? During install?

And this is what I added to the 40_custom confing file on Debian to add the link to Fedoras *efi file in order to load it on Debian GRUB:

And this is what I added to the 40_custom confing file on Debian to add the link to Fedoras *efi file in order to load it on Debian GRUB:

So, I should do this for all distros except the first on my UEFI? After install?

How do you know which mountpoints?

Do you have any Linux distribution functional now?

No my laptop @home, I will check it and come back to you

So, I should do this for all distros except the first on my UEFI? After install?

When I was trying to fix this issue I first installed Fedora alonside the OEM Windows, later installed Debian, and realized that Fedora was not in the GRUB menu, so I added it to Debian's GRUB, in the same way I did this for Debian I can do it on Fedora's GRUB to add a menu entry for Debian. The only and the one system that is always added automatically to whatever linux distribution grub you might have is Windows XD.

No my laptop @home, I will check it and come back to you

OK, If you don't mind it is 23:43 UTC -6 here, I will happily help tomorrow if you don't mind? Just write me :) .

OK, If you don't mind it is 23:43 UTC -6 here, I will happily help tomorrow if you don't mind? Just write me :) .

Thanks, we are UTC +4 so 9:43 AM :)

How do you know which mountpoints?

with fdisk -l and also the last 4 partitions are the ones dedicated for Fedora and Debian. I only care about not reformating/wiping the partition sda2 which is the so called ESP a.k.a Efi Partition System. sda7 is /boot for Fedora sda8 is the LUKS encrypted partition that contains the Volume Group for / /home and swap sda9 is /boot for Debian sda10 is the LUKS encrypted partition that contains the Volume Group for / /home and swap Any of the mentioned partitions can live in separated HDD.

Okay, so I need a compression algorithm that is fast to compress, fast to decompress, and has high compression ratios

Accepting all new inventions starting now

Accepting all new inventions starting now

The guys from Silicon Valley did it. :p

Ok

pff

I'm tempted to try brotli, but not all of my files are text-based

Last time i tried to multi boot on my toshiba laptop:

Cool

Although, are there multiple dictionaries for brotli? (I have no idea)

dd if=/dev/urandom of=/dev/root More effective.

Although, are there multiple dictionaries for brotli? (I have no idea)

According to Wikipedia: Brotli uses a pre-defined 120 kilobyte dictionary, in addition to the dynamically populated ("sliding window") dictionary.

dd if=/dev/urandom of=/dev/root More effective.

I will do it next time i turn crazy and try experiments with uefi

According to Wikipedia: Brotli uses a pre-defined 120 kilobyte dictionary, in addition to the dynamically populated ("sliding window") dictionary.

The only one I know of is for text, though

Are there multiple predefined dictionaries?

The pre-defined dictionary contains over 13000 common words, phrases and other substrings derived from a large corpus of text and HTML documents.

I guess there's only one ;)

:(

*fork*

I doubt there are common strings for non-text data, though

at least any common enough to make it worth it