https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=198642
Bug ID: 198642
Summary: EFI boot yields various error messages
Product: Base System
Version: 10.1-RELEASE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: misc
Assignee: freebsd-bugs@FreeBSD.org
Reporter: cipher...@hotmail.com
I'm trying to get EFI boot working by following the document:
https://wiki.freebsd.org/UEFI
It roughly says:
gpart create -s gpt da0
gpart add -t efi -s 800K da0
gpart add -t freebsd-ufs da0
dd if=/boot/boot1.efifat of=/dev/da0p1
newfs /dev/da0p2
I created a USB Stick roughly using the guideline above, but use a MFSroot on
the UFS partition instead, and have partitions aligned to 1024K-boundaries.
Then, i used RaWrite to create the USB stick.
When trying to boot my USB stick on two real hardware systems (J1900) however,
it first yields an error message that it cannot load /boot/loader.conf, and
when it tries to load /boot/kernel/kernel, i get random error messages from the
the following list:
---
inflate: invalid code lengths set
invalid distance too far back
invalid distance code
inflate: invalid stored block lengths
readin failed. elf64_loadimage: read failed
inflate: invalid block type
---
The strange thing is that trying to boot (OK loader prompt) will yield a
different error. I would expect getting the same error from the same input. It
appears the error is randomly chosen from the above list. Maybe this is a clue?
I am using a preloaded mfsroot. I saw some recent commits to HEAD (r279929)
about addressing some issues with EFI staging area. But i'm not sure this is
the problem, since the loader cannot load /boot/loader.conf or even the kernel
itself. So loading the mfsroot of about 10MB would probably not be the issue?
Having a working EFI boot is important, since some motherboards will not boot
from MBR bootsector when GPT partitions are detected, or do not support
MBR-style boot at all and insist on EFI boot.
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