Crear Usb Booteable Windows 7 Legacy
Gema Shisila
Ubuntu won't detect windows 10 when I try to install it, so I'm assuming it is because my BIOS is not in UEFI mode, but rather, in Legacy mode. Is there any way for me to still be able to install ubuntu alongside my windows installation?
Open rufus after downloadSelect the drive you want to install on.Select the partition scheme for both legacy and UEFI modesLeave file system and cluster size as defaultIn the Create bootable disk using option, select ISO Image, then click the icon beside to pick the Ubuntu ISO Image you downloaded.Then click start to start the operation.
However, due to Windows Fast Boot options, your computer might boot directly into Windows 10 without booting from the Ubuntu Boot manager you created (Which i assume is connected to your system). You can force your system to load your external drives by Reordering the Boot Options in your BIOS setup. And some computers will give you access to select which drive to boot from when you press a specific key (mostly F12 or ESC key) immediately your computer powers on.
According to the documentation, the Secure Boot is only available in UEFI. If you have Windows in Legacy mode, I think you don't need to turn that off in your BIOS setting. As you could see the "Secure Boot State" in System Information Utility will be "Unsupported".
I have been wanting to switch to Linux for many years, and I finally took the step to download a Fedora 30 KDE live CD iso (actually USB) and give a try installing it. Since this is the computer I use for work, I want to keep a dual-boot system with Windows 7, at least during a transition period. The installation has not been successful though, and after spending all day today trying to figure out what might be the problem I found this video: Install Fedora 23 in Legacy Mode (Dual Boot Windows 7/8/10) - YouTube which was very helpful.
So my USB boots in UEFI mode, but I would like to install it in legacy BIOS mode. Is there any way to do this? Can I burn the USB in a different way so that it would boot in legacy mode, or can I add a configuration switch somewhere?
is there a way to change this command to make it run the legacy mode? i tried changing linuxefi to linux and initrdefi to initrd and run Ctrl-x, and the system did start, but I get the same errors as before with anaconda still trying to install and EFI system.
In my bios at least i can choise the option 1 or 2. If i select the option 1 i am only disponible to install in UEFI mode so that when I place the usb only can see UEFI:USB install. If I choise the option 2 I will can choise into 2 options when I place the USB:
I think you do need check your configuration into the BIOS. The only thing what is strange to me about it that you did comment is what if you can run only UEFI How is windows 7 loading in mode BIOS, it is what is chocking me.
Yes, I went to my HP BIOS manual and I double checked that the settings are enabled to be able to run both. As my boot loader is a bit fucked up atm, I need to get to the BIOS boot menu to start the system anyways, and the options I can choose there are (the comments in parenthesis are mine) :
Yes!!!
Thank you so much. The USB that RUFUS burned finally was able to be loaded in legacy BIOS mode and after that it was a 10 minute smooth ride to a successfull installation. Now I have a fully functional dual boot.
What do you mean legacy devices vs UEFI devices? Any device added to a UEFI boot menu can be a UEFI device. UEFI does not classify boot devices as legacy or not. Typically you have to add boot devices to a UEFI menu either through BIOS which can insert the alternate boot device into the UEFI boot order or through the UEFI interface directly. I suspect it is the former on pc class machine.
It will boot from the CDROM in this mode, but it will not boot from the SSD. Note that it has actually detected and listed the device connected as the USB CDROM (GP60NB50 is the model number of the drive). This is one of the key ways I know the device is going to boot in particular mode - you see a description.
Remember that with this GPT format, there is a partition table written to the end of the drive, where it will remain if you just try to delete it with fdisk or a non-GPT aware file system tool or the dd util as Dicko suggests. GPT disk needs to be converted with GPT award tools such as gdisk on Linux or diskpart in windows which is what th OP is trying to do.
Unfortunately, after downloading a couple and reading the instructions and trying them, none of them seem to have the ability to burn a UEFI boot device. All of them created disks / sticks that would only boot in legacy mode on this confounded Acer machine.
The EFI system partition (ESP) is a partition on a data storage device (usually a hard disk drive or solid-state drive) that is used by computers adhering to the Unified Extensible Firmware Interface (UEFI). When a computer is booted, UEFI firmware loads files stored on the ESP to start installed operating systems and various utilities. An ESP needs to be formatted with a file system whose specification is based on the FAT file system and maintained as part of the UEFI specification; therefore, t...
I'm trying to understand once and for all the process by which Arch can be booted from a system with UEFI firmware and an MBR partition table. Some of the information on the wiki seems conflictual / non-nonsensical at times. Apologies in advance if this has been answered time and time again, but I did search around and all I found was fixes to get Arch to boot rather than comprehensive explanations of the boot process.
Now, the way I would imagine it works is that it's just completely identical to the way it would work with a BIOS firmware. The UEFI firmware detects an MBR partitioning scheme (or is configured to know it's an MBR partitioning scheme), activates some "legacy" mode and executes the MBR boot code, just like a BIOS firmware would.
The wiki however, says different. From the Macbook article: "Do not install GRUB onto /dev/sda !!! Doing so is likely to lead to an unstable post-environment."?
So what is there in the MBR boot sector? Nothing?
How does the firmware know what to boot if there's no 0xEF BIOS boot partition and no Grub stage 1 in the MBR boot sector?
Also, how does installing Grub stage 1 to a partition work? Does it have to be at the beginning of the partition? Wouldn't that overwrite some existing data?
I'm especially puzzled since many guides to installing Vista on a macbook recommend simply formatting as MBR, and installing as normal, which I suppose entails having the Windows installation process write its boot code to the MBR, ie the equivalent of installing grub stage 1 to /dev/sda rather than to the /boot partition, as the Macbook article suggests.
P.S. I realize it's probably simpler, if I just want to dual boot Windows and Arch, to install Windows 7 in UEFI-GPT mode, let it create the EFI System Partition, and then install GRUB 2 to that partition, but I'm still curious about the UEFI-MBR boot process.
Just to clarify: are you trying specifically to install on a Mac? Because as I understand it, the Mac firmware is *not* quite the same as UEFI v. 2 but is instead an Apple-customised version of EFI and the installation process is complicated/non-standard as a result.
If there any differences regarding MBR booting between the Mac EFI and UEFI v2, I'd be glad to hear them.
I'm trying to install on a Thinkpad x121e. Welll, I already have installed. I'm just curious as to how it would have gone had I opted for MBR and not GPT.
The section of the wiki I quoted does apply to dual booting with OS X, but I still don't understand how it works. Does the UEFI firmware simply chainload the GRUB stage 1 that's on the boot partition?
I don't actually know much about the Mac situation. I've never used regular (legacy) grub - unless you count the 24 hours or so I had it installed before I decided to switch to GPT. I just know that it is rather different e.g. that trying to setup grub2 in the ordinary way (using efibootmgr) can brick the machine and that you need to just bless instead. I don't even know what the stages refer to. Are they similar to the stages yaboot uses to boot? (I don't know if they are called "stages" in the case of yaboot but there is an initial menu - Linux, Open Firmware, CD, OS X etc. - and then, for Linux, a further menu with whatever kernels etc. are available.)
My guess would be that there's a reason you install OS X first rather than Linux. This seems to always apply to Macs - even the pre-intel ones. For the pre-intel ones, you need to do this even if you don't want OS X installed - and it looks like that applies to the intel ones, as well. But for pre-intel, you have to partition with OS X's utility - you can't use Linux tools. If you look at the resulting disk in Linux, you can see partitions which I believe OS X sets up but which don't usually show up in listings. It would be interesting to know what this looks like for an intel Mac.
If you had used MBR, why would you have used UEFI to boot? I'm just curious - I only used UEFI because I couldn't get it to boot with GPT in any other way - and, even then, I had to (fail to) install Ubuntu on it in order to figure out how to get it to work.
Syslinux requires the /boot partition to be marked as "Legacy BIOS Bootable" GPT attribute (legacy_boot flag in GNU Parted) to identify the partition containing the syslinux boot files by its MBR boot code gptmbr.bin . See Syslinux#GUID_Partition_Table_aka_GPT for more info.
GRUB-Legacy present in official repos as grub and in AUR as grub-gfx, does not support GPT disks. Fedora's heavily patched GRUB-Legacy fork grub-legacy-fedora-git contains GPT patches from Intel (tested in Fedora, not tested in Archlinux).
I have made a personal commitment not to reply in topics that start with a lowercase letter. Proper grammar and punctuation is a sign of respect, and if you do not show any, you will NOT receive any help (at least not from me).
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