This will give you an MBR partition table system on a blank drive onto which you can reinstall an OS. If you are attempting to do this with existing partitions, it is quite a bit more complicated and in some cases not even possible, so I would recommend that you simply back up your data and do it this way. This should work for most cases. You know you cannot use a MBR when you have partitions larger than 2TB, or for more than 15 partitions. You should use a livedisk like grml for all this.
In case you did something wrong, reboot and retry. As long as you do not write any data onto the disk, nothing is lost. Remember you still have all your partition layout on your phone, so you can recreate the original GPT if really need be. In case your really fuck something up and did not take photos, try testdisk for discerning the partition boundaries. But don't bet any money on it as soon as your layout was anything extraordinary.
Don't do it, just reboot into the livedisk again, and make your adjustments. If you fix things there, your system will boot again, I promise. To easily discern what is what with LVM, always use your hostname as name for the VG and the mountpoint root , swap , var , This is general hint, not something you are required to do for anything of the above steps.
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I keep receiving this error: Warning!! Improve this question. What is your reason for wanting to switch? What is the real problem you are trying to solve? If you are formatting the drive, try this: blog.
Add a comment. Active Oldest Votes. That link you posted looks like a very ugly hack type solution. I'd try that first. Connect and share knowledge within a single location that is structured and easy to search. Use gdisk instead of fdisk. It isn't installed by default, so get it with:. Select the GPT one. In my case, 2. Use the? Enter x for expert options, then z to zap the GPT table and all the data on the disc:. You can use wipefs to remove all common id blocks from a device before changing the partition format.
There are two ways to work around this problem:. Thus, it's hard for me to say which approach is best. Of course, you might not even be able to boot your computer in EFI mode, so you might have to do it by converting your partition table.
An alternative to either approach is to run Windows from within VirtualBox or some other virtualization environment under Linux. This is simpler and safer, and it may be adequate for many purposes. It's most likely to be a problem if you want to run video-intensive games, if you need low-level access to the hardware, or if you have inadequate RAM to support a virtualized environment sufficient for your needs.
Whichever approach you take aside from a virtualized Windows , I strongly recommend you back up any important data first; mucking with partition tables is always risky.
Installing Windows in EFI mode in this case will require one of two things:. Either is possible. There are several options, as described here. Switching between EFI-mode and BIOS-mode boots of the computer is usually awkward, but sometimes a boot options switch accessible by pressing F8, F12, or some other key at boot time can make this tolerable. I am not sure the computer will let you. I think as long as that is turned on you might not be able to get rid of the partition and still have the computer work.
Please note: All new computers that come with Win8 are mandated to have the UEFI turned on all the time with no way to disable it. Gotta love microshaft's greed. If everyone complained to the FTC. I wonder how come someone in Linux just don't write their own UEFI that gives the option to allow dual booting and replace the one that microshaft forces upon everyone.
More on Linux - if I remove my hard drive with win7 on it and install an ssd drive, then turn off the UEI in bios, I can install linux with no problem. It is when I try to add a windows 7 drive with uefi back in is when there is a problem.
Perhaps Linux could make their own uefi that controls every thing like the grub bootloader did instead of having windows dictate what software and hardware you can install. Use the linux uefi first then if you choose windows, kick it to the windows C:partition.
Another idea would be to do something sililar to what puppy does. Puppy uses a fat 2 but inside that it makes an ext2 file system. Smart TVs Ads. Team Comes to Workplace by Meta. Block People Spotify. Verizon Selling PS5. Windows 11 SE Explained. Find Downloaded Files on an iPhone.
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