This bug was fixed in the package grub2 - 2.06-2ubuntu3
---------------
grub2 (2.06-2ubuntu3) jammy; urgency=medium
* Cherry-pick the missing hunk back that changes parameter loading
in grub-core/loader/i386/linux.c, this should fix booting on
BIOS systems.
* Fix the fallback for kernel addresses on amd64 EFI, if the kernel
could not be allocated at the preferred address, reset errno such
that if the 2nd allocation succeeds, we do not fail erroneously.
-- Julian Andres Klode <juli...@ubuntu.com> Mon, 13 Dec 2021 14:27:53
+0100
** Changed in: grub2 (Ubuntu)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1892290
Title:
PXE load Focal initrd.img-5.4.0-42-generic always timeout
Status in grub2 package in Ubuntu:
Fix Released
Status in initramfs-tools package in Ubuntu:
Confirmed
Bug description:
PXE booting Focal initrd always gets a timeout, but PXE booting Bionic initrd
works
error: timeout reading `initrd.img-5.4.0-42-generic'.
grub.cfg
--------
menuentry "boot_iscsi" {
linux vmlinuz-5.4.0-42-generic ...
initrd initrd.img-5.4.0-42-generic
}
grub, kernel and initrd get from Focal boot dir
$ cp /usr/lib/grub/arm64-efi-signed/grubnetaa64.efi.signed
~/tftproot/grubaa64.efi
$ cp /boot/vmlinuz-5.4.0-42-generic ~/tftproot/
$ cp /boot/initrd.img-5.4.0-42-generic ~/tftproot/
hardware
--------
Real aarch64 server or qemu-system-aarch64 machine
software
--------
$ apt search grub-efi-arm64
Sorting... Done
Full Text Search... Done
grub-efi-arm64/focal-updates,focal-security,now 2.04-1ubuntu26.2 arm64
[installed]
GRand Unified Bootloader, version 2 (ARM64 UEFI version)
grub-efi-arm64-bin/focal-updates,focal-security,now 2.04-1ubuntu26.2 arm64
[installed,automatic]
GRand Unified Bootloader, version 2 (ARM64 UEFI modules)
grub-efi-arm64-dbg/focal-updates,focal-security 2.04-1ubuntu26.2 arm64
GRand Unified Bootloader, version 2 (ARM64 UEFI debug files)
grub-efi-arm64-signed/focal-updates,focal-security,now
1.142.4+2.04-1ubuntu26.2 arm64 [installed]
GRand Unified Bootloader, version 2 (EFI-ARM64 version, signed)
grub-efi-arm64-signed-template/focal-updates,focal-security 2.04-1ubuntu26.2
arm64
GRand Unified Bootloader, version 2 (ARM64 UEFI signing template)
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04 LTS
Release: 20.04
Codename: focal
$ uname -a
Linux j12-d05-07 5.4.0-42-generic #1 SMP Tue Jul 7 02:48:00 GMT 2020 aarch64
aarch64 aarch64 GNU/Linux
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