Contents.To reinstall grub, you need either a live CD/USB to access your current system, or you can use the rEFInd boot manager on a live CD/USB to boot your current system.Using the rEFInd rescue mediaAt the author's web page, you will find updated direct links to all sorts of packaging. To boot from a rescue media, select either the CD iso or the image for USB stick, most firmware offers the choice nowadays. It is recommended to read the author's web pages to get a better understanding of what you are doing.Boot your computer with the Refind mediaRefind will parse your hard drive for installed kernels, and provide you a graphic menu to boot them. Choose your Linux Kernel and boot it.Reinstalling grub-efi on your hard driveCheck that the computer booted in computer in EFI mode: -d /sys/firmware/efi && echo 'EFI boot on HDD' echo 'Legacy boot on HDD'should return 'EFI boot on HDD'.After starting a root shell ( if you boot from a live media, you should start a chroot shell instead, as explained in ) check that your EFI system partition (most probably /dev/sda1) is mounted on /boot/efi.

• Windows 7 Ripristino Boot Loader Da Cd Di Installazione Program Free
• Windows 7 Ripristino Boot Loader Da Cd Di Installazione Programs

Windows 7 Ripristino Boot Loader Da Cd Di Installazione Program Free

If the /boot/efi directory does not exist, you will need to create it. Mount /dev/sda1 /boot/efiReinstall the grub-efi package apt-get install -reinstall grub-efiPut the debian bootloader in /boot/efi and create an appropriate entry in the computer NVRAM grub-install /dev/sdaRe create a grub config file based on your disk partitioning schema update-grubYou should check afterwards that:Check 1. The bootloader is existing in /boot/efi/EFI/debian/grubx64.efi file /boot/efi/EFI/debian/grubx64.efi/boot/efi/EFI/debian/grubx64.efi: PE32+ executable (EFI application) x86-64 (stripped to external PDB), for MS WindowsCheck 2. The nvram entry was properly created.efibootmgr -verbose grep debianYou can now reboot, and Grub should greet you.TroubleshootingIf after this steps you're not booting, the EFI of your PC might have some bugs.Problem1: Weak EFI implementation only recognizes the fallback bootloaderThe uefi firmware refuses to boot the debian/grubx64.efi bootloader, and so we have to hijack the uefi fallback boot loader. See for details.Using debian installer in rescue mode, /dev/sda1 being the FAT32 ESP partition, /dev/sda2 the root partition mkdir /targetmount /dev/sda2 /targetmount /dev/sda1 /target/boot/efifor i in /sys /proc /dev; do mount -bind $i /target$i; donechroot /targetcd /boot/efi/EFImkdir bootcp debian/grubx64.efi boot/bootx64.efiexitfor i in /sys /proc /dev; do umount /target$i; doneumount /target/boot/efiumount /targetOnce booted into your normal Debian, tell grub to ensure the fallback boot loader up to date.

To do that, run the following: echo 'grub-efi-amd64 grub2/forceefiextraremovable boolean true' sudo debconf-set-selectionsNote: The above command will permanently hijack the fallback boot loader, which might be undesirable in dual-boot setups.Problem2: EFI boot entries disappear after rebootThe uefi firmware did not create a proper boot entry in NVRAM. This has been seen in a Lenovo Thinkcenter M92Z.

Windows 7 Ripristino Boot Loader Da Cd Di Installazione Programs

Warning: This software is able to share information about your device for diagnostic purposes. Real traffic spawn install google. You can chose to opt out in advanced settings. Please read this page fully.