Lpro Boot Disk

[Chris Domino]

SoI proceed on to using Grub. I have it installed to my root partion as other guides mention.

Install works, finishes, and puts me into Suse (KDE Desktop) I then do a system reboot.

I am using ReFIT as the guide has mentioned to handle my boot options. When I select the tux icon to boot my suse install I get a black screen with no activity.

WHen I reboot and run the reFIT Partition tool I get the following out put:

So from this I am guessing that the fact that the GPT sees two EFI systems this may be one of my problems?

Although I have no idea how to correct this. I have looked on reFIT website for this error:

rEFIt - Documentation - Linux partition shows as EFI System

I tried removing the boot flag from my root partition and all this did was still present me with the same output as above, minus the line #4 of GPT stating EFI System (FAT) instead it read Basic DAta (same as line #3). And made the disk totaly unbootable even when run through the suse11.2 install dvd ---->boot from hard drive option.

To also note I have also tried to update reFIT and I am still not able to boot into my suse install.

So please let me know if you can see anything I have done wrong or am doing wrong. I am very much willing to learn, I just am not sure how to get past this point.

Actually ya I am trying ext4. Hmmmm maybe I will try this again, and try with ext3 and LILO. I will give this 24hrs to see what other responses I get are. Has anyone got grub to work with suse 11.2 and macbook pro 5,3 or around that? Or should I try to redo with ext 3 and LILO?

Specially while installing on a Mac, it is important to prevent Grub to touch the MBR (even activate a partition as it does by default), otherwise it will get desynchronized with the GPT. Do not just install Grub in the Linux partition! Also go in the Advanced boot options during setup and uncheck everything there. Forget about LILO! That was yesterday.

If anyone who reads this thread used the partition tool in the OpenSuse installer and get this rEFIt error, try removing the boot label from your linux boot partition with GParted, and let us know if it works

First, review this introductory article: Create a bootable installer for macOS. Second, read this How To outline for creating a bootable macOS installer. Simply use the Terminal command by copying and pasting the command line into the Terminal window. You will need a 16GB USB flash drive that has been partitioned and formatted for use with OS X as well as an installer for Catalina.

Press RETURN. You will be asked for your admin password. It will not echo to the Terminal window. Then press RETURN again. Wait for the return of the Terminal prompt signifying the process has completed. It takes quite some time to finish. Be patient.

I've tried all the steps before posting, problem is that when I've tried first time it was able to recognize USB with Catalina installer, when selected moved me in the tool to erase disk ( there was user data inside ).

If you Option Boot you should be presented with the Apple boot picker menu which will show all local bootable media (internal drive, USB drive) and also any NetBoot servers on the local network. If you don't see your Catalina USB installer, then try using another brand of USB drive since Macs can be very particular about the USB sticks used for booting. The quality of many USB sticks is just awful.

If you cannot get the Apple boot picker menu after the resets, then you may have a keyboard or Logic Board issue as that is a basic hardware feature of Macs and not much can interfere with it. You can try using an external keyboard to Option Boot.

I have a Macbook Pro with T2 security chip. I was making a recovery of a Time Machine backup, that somehow failed. Could not boot up after it. Somehow also the Recovery Mode partition is gone. Now I cannot boot from USB, make Internet Recovery, nor anything else. All ends up with "Security settings do not allow this Mac to use an external startup disk.".

I'm afraid you need to erase and reinstall your MacBook. Have important data on your Mac? Unfortunately, every Mac with a T2 chip has a unique ID for encryption. So it's impossible to transfer data via Target Disk Mode. The only way is to download and install a T2 chip data recovery software like iBoysoft Data Recovery for Mac. Look at the post: -data-recovery/apple-t2-chip-data-recovery.html.

After data restore, the next step is to reinstall macOS. Shut down your Mac and restart it by pressing Option+Command+R (not Command+R). This will lead you to erase the startup disk and reinstall macOS.

A bootable disk is a storage device that contains all the necessary files to start up an operating system (OS) on a computer. When you boot your computer, the basic input output system (BIOS) or unified extensible firmware interface (UEFI) firmware looks for a system on all storage devices, and a bootable disk has the special structure and files that the computer needs to load the OS. You could think of it as the key that starts the engine of your computer.

For a disk to be bootable, it needs to have a boot sector, which is a specific area on the disk containing machine code to be executed by the computer's control processing unit (CPU). Alongside the boot sector, the disk must have the necessary files for an operating system to start. If these requirements are met, when you power on your computer, the firmware can hand over control to the bootable disk to initiate the startup process.

To make a USB drive bootable, you'll typically use a utility to copy system files and a boot sector onto the USB drive. First, you'll need to have an ISO file or equivalent of the operating system you wish to install. Then, using software like Rufus or a command-line tool like 'dd' on Linux, you can write these files onto your USB stick. This process formats the USB and installs the files necessary for booting.

To create a bootable disk, you'll need a few things: a storage device (like a universal serial bus (USB) flash drive or DVD), a bootable image file of the operating system (commonly in ISO format), and software to write this image onto the device. Additionally, you'll need a functioning computer to perform this task and prepare the bootable media.

Yes, a hard drive can be made bootable. You can either clone an existing operating system onto the hard drive or use installation media to install a new one. This process involves partitioning the hard drive, creating a boot sector, and then copying over the operating system files. Once completed, the BIOS or UEFI can boot from the hard drive.

Yes, you can have multiple bootable partitions on a single drive, which is commonly referred to as a multi-boot or dual-boot setup. Each partition can have a different operating system or a separate version of the same OS. When the computer starts, a boot manager, like grand unified bootloader (GRUB), will allow you to select which partition to boot from.

Having a bootable backup drive is a lifesaver for data recovery. If your main system drive fails, you can boot from the backup drive, which has a clone of your system. This allows you to bypass the faulty drive and access a recent copy of your data. You can also use the bootable backup to restore your main drive's system files to a previous state or to a new drive entirely.

A live disk is a type of bootable disk that allows you to run an operating system directly from the disk without installing it on the computer's hard drive. It's useful for trying out an OS, troubleshooting, or system repairs. A bootable disk, however, is often used for installing the OS onto the computer's hard drive. So, while all live disks are bootable, not all bootable disks are live disks.

You can tell if your disk is bootable by attempting to boot from it. Restart your computer and enter the boot menu or the BIOS/ unified extensible firmware interface (UEFI) settings. Choose the disk as the primary boot device. If it's bootable, your computer will start the boot process using the files on the disk. If it's not, the system will fail to start and usually display an error message.

Bootable disks can become corrupted just like any other storage media. If the boot sector is damaged or if key system files are missing or broken, the disk won't be able to initiate the OS startup process. Corruptions can occur due to physical damage, software errors, or virus attacks. Regularly checking the disk for errors and keeping backups can mitigate the risk of corruption.

Even if your computer is working fine, a bootable disk can be essential for emergency situations. It can act as a failsafe if your system becomes unbootable due to a virus, system file corruption, or hardware failure. You can use it to troubleshoot issues, recover data, or reinstall the operating system without needing a functioning OS on the computer.

Yes, you can update the operating system on a bootable disk, especially if it's a live disk or a full OS installation on a universal serial bus (USB) drive. You can boot into the OS from the disk and run updates as you would on a normal system. However, if the bootable disk is strictly for installation purposes, you'd need to recreate the disk with the updated version of the OS.

When a computer starts up, it performs a power-on self-test (POST) and then the BIOS or unified extensible firmware interface (UEFI) firmware searches for bootable devices connected to the computer. It checks devices according to boot order, which you can set in the BIOS/UEFI settings. When it finds a disk with a valid boot sector, it hands over control to the boot loader on that disk to continue the boot process.

You can boot from a network through a process called network booting or preboot eXecution environment (PXE) booting. This method retrieves boot files from a server on the network rather than a local disk. It's a common practice in enterprise environments where multiple systems boot the same image for consistency and ease of management.

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