As the log below shows grub_net_fini_hw() is called before entering the kernel and before the LoadFile2 protocol is executed:
loader/efi/linux.c:478: kernel @ 0xf63d8000 net/net.c:1559: fs_close() name: /casper/vmlinuz net/net.c:1510: fs_open() name: /casper/initrd loader/efi/linux.c:396: LoadFile2 initrd loading protocol installed net/net.c:1819: grub_net_fini_hw() net/drivers/efi/efinet.c:232: efi_net close_card loader/efi/linux.c:141: Installed/updated FDT configuration table @ 0x0 loader/efi/linux.c:191: linux command line: 'BOOT_IMAGE=/casper/vmlinuz efi=debug earlyprintk url=https://cdimage.ubuntu.com/ubuntu-server/daily-live/current/jammy-live-serv er-arm64.iso' loader/efi/peimage.c:215: PE-COFF header checked loader/efi/peimage.c:282: sections loaded loader/efi/peimage.c:493: no relocations loader/efi/peimage.c:709: Executing image loaded at 0xf3640000 Entry point 0xf55473c8 Size 0x02d90000 EFI stub: Booting Linux Kernel... EFI stub: EFI_RNG_PROTOCOL unavailable EFI stub: Generating empty DTB loader/efi/linux.c:348: Providing initrd via LOAD_FILE2_PROTOCOL net/net.c:1685: fs_read_real() name: /casper/initrd net/drivers/efi/efinet.c:169: efi_net open_card net/drivers/efi/efinet.c:75: Timeout: limit_time 50680, new_time 50681 error: couldn't send network packet. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1967562 Title: jammy beta (220330) arm iso pxe boot kernel panic on Ampere Mt. Jade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1967562/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs