Directly dropped into a grub shell when boot Ventoy 3. Works fine with a small USB drive(e.g. 32GB) Why no problem with other tools (e.g. Rufus) When you make a bootable USB with other tools like Rufus, the USB drive will be reformatted and all the data in the ISO will be written into the USB from the begginning. Next, you need to enter the safe mode you need to enable the legacy advanced boot option in Windows 10. In the earlier version of Microsoft Windows like Windows XP, Vista, and 7, it was quite easy to access safe mode by just pressing F8 or Shift+F8 repeatedly, but in Windows 10, Windows 8 & Windows 8.1 advanced boot menu is OFF. Legacy Boot Mode. With newer Windows 8 PCs that are designed with UEFI support, the BIOS or firmware often has an option that specifies if the computer can boot into regular operating systems and recovery tools, or if it can boot exclusively into newer UEFI operating systems and environments.
- Bless A Usb For Legacy Boot
- Bless A Usb For Legacy Bootable
- Bless A Usb For Legacy Booth
- Bless A Usb For Legacy Boots
Set volume bootability and set the active boot volume.
bless has 5 modes of execution: Folder Mode, Mount Mode, Device Mode, NetBoot Mode, and Info Mode.
Bless A Usb For Legacy Boot
Bless predates SIP, APFS, and T2 Secure Boot. On modern Macs, bless should be used with great caution as it may render the Mac unbootable.
In macOS 10.11 and above, bless should not be used to try to set the startup disk as System Integrity Protection (SIP) is in place.
Instead use systemsetup -setstartupdisk
For a full description of all the bless options see man bless the options available for bless will vary according to the version of macOS you are running.
Examples
INFO MODE
Gather information about the currently selected volume (as determined by the firmware):
sudo bless --info
Gather plist information about the currently selected volume (as determined by the firmware), suitable for piping to a program capable of parsing Property Lists:
sudo bless --info --plist
FOLDER MODE
To bless a volume with only Mac OS 9:
bless --folder9 '/Volumes/Mac OS 9/System Folder' --bootBlockFile '/usr/share/misc/bootblockdata'
To bless a volume with only macOS or Darwin, and create the BootX and boot.efi files as needed:
bless --folder '/Volumes/Mac OS X/System/Library/CoreServices' --bootinfo --bootefi
MOUNT MODE
To set a volume containing either Mac OS 9 and macOS to be the active volume:
bless --mount '/Volumes/Mac OS' --setBoot
NETBOOT MODE
To set the system to NetBoot and broadcast for an available server:
bless --netboot --server bsdp://255.255.255.255
Bless A Usb For Legacy Bootable
“If everything seems under control, then you're not going fast enough” - Mario Andretti
Related macOS commands:
Bless A Usb For Legacy Booth
asr - Apple Software Restore.
diskutil - Disk utilities - Format, Verify, Repair.
mount - Mount a file system.
newfs(8)
nvram(8)
systemsetup -setstartupdisk
HT204455 - How to set a firmware password on your Mac
Bless A Usb For Legacy Boots
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