the system has not been installed. Currently I'm trying to use ubuntu-18.04.1-desktop-amd64.iso: release the image to a FAT32 partition on USBflash drive, then modify BIOS (UEFI) to boot from USB flash drive. However, computer freezes and black screen when saving changes made on BIOS.
I can help you test the issue if needed. Have read “Subject: efi/cainloader: truncate overlong relocation section” , thanks! Mathieu Trudel-Lapierre <mathieu...@gmail.com> 于2018年10月3日周三 下午10:41写道： > How is this system installed? > > Shim 15 works quite well here to chainload Windows or boot to grub in > cosmic, and isn't yet available to users in other releases of Ubuntu. > > ** Changed in: grub2 (Ubuntu) > Status: New => Incomplete > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1783480 > > Title: > Boot stuck > > Status in grub2 package in Ubuntu: > Incomplete > > Bug description: > Question 1: > Configuration instructions > CPU: Intel i7 7700 > Graphics card: CPU integration > Motherboard: ROG STRIX Z270E GAMING > BIOS starts UEFI and secure boot (64Bit UEFI) > > Shim15->Ubuntu Grub2(applied/ubuntu/bionic-devel) > > Booting to Ubuntu Grub2 stuck, the screen is always black, you can only > restart the computer by pressing the restart button. > If you turn off the safe boot, everything works fine. > I can rule out that it is caused by shim15, because after I deleted the > grub.efi file, shim15 prompts that grub.efi cannot be found. > Finally, I deleted the grub.cfg file and it still stuck. > The above problem is normal if you use the Fedora29 Grub2 code ( > https://github.com/rhboot/grub2/tree/fedora-29). > > Question 2: > The test platform is VMware14, and the BIOS has enabled UEFI and Secure > Boot (32Bit UEFI). > 32Bit UEFI will not have the above problem, but it will be stuck when > bootloader is used to boot the bootmgfw.efi file of Windows system. > This is the case with Ubuntu Grub2 (applied/ubuntu/bionic-devel) and > Fedora29 Grub2 (https://github.com/rhboot/grub2/tree/fedora-29). > Debian Grub2's 32Bit Grub2 ( > https://salsa.debian.org/grub-team/grub/tree/debian/2.02+dfsg1-4) has no > problems, but he will have the stuck condition described in question 1. > > I am not very familiar with the grub2 code, but I can assist with the > test. > > Grub.cfg file > > insmod part_gpt > insmod part_msdos > insmod png > insmod all_video > insmod gfxterm > > loadfont $prefix/font.pf2 > > set timeout=3 > set default=1 > set gfxmode=auto > set gfxpayload=1024x768 > terminal_output gfxterm > set theme=/style.txt > > menuentry 'Linux' --hotkey=f3 { > if cpuid -l; then > linux /bzImage loglevel=3 > else > linux /bzImage_x86 loglevel=3 > fi > initrd /initramfs > } > > menuentry 'System' --hotkey=enter { > chainloader (${root})/EFI/Microsoft/Boot/bootmgfwLoadOs.efi > } > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1783480/+subscriptions > -- *Hao Binnan* *Isoo (Qinhuangdao) software development Co., Ltd. (China)* http://www.eassos.com PGP Public Key: 4096R/9EF21740 / 9678 1E8C B21E 1E60 3997 811D F83B B359 9EF2 1740 haobinnan <haobin...@gmail.com> -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1783480 Title: Boot stuck To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1783480/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
