Re: Grub Always Boots to Rescue Mode

[Gordan Bobic]

For completeness, here is the environment as reported at the prompt before
I manually have to invoke the normal mode:

grub> ls
(hd0) (hd0,gpt9) (hd0,gpt2) (hd0,gpt1)

grub> lsmod
Name Ref Count Dependencies
minicmd  1
ls  1  normal,extmod
normal  3  gettext,boot,extcmd,bufio,crypto,terminal,net
gettext  4
extcmd  6
crypto  4
terminal  4
net  4  boot,datetime,bufio,priorit_queue
boot  9
datetime  5
bufio  9
priority_queue  5
part_gpt  1
zfs  1  gzip
gzio  2

grub> set
?=0
color_highlight=black/light-gray
color_normal=light-gray/black
feature_200_final=y
feature_all_video_module=y
feature_chainloader_bpb=y
feature_default_font_path=y
feature_menuentry_id=y
feature_menuentry_options=y
feature_nativedisk_cmd=y
feature_ntldr=y
feature_platform_search_hint=y
feature_timeout_style=y
fw_path=(hd0,gpt2)//EFI/centos
grub_cpu=x86_64
lang=
locale_dir=
net_default_ip=(null)
net_default_mac=(null)
net_default_server=
pager=
prefix=(hd0,gpt1)/ROOT@/boot/grub2
pxe_default_server=
root=hd0,gpt1
secondary_locale_dir

grub>

At this point punching in "normal" fires up the boot menu and boots the
machine correctly, but I cannot understand why it doesn't proceed with
"normal" without manual intervention by default.

gpt2 is the EFI partition, gpt9 is a reserved partition with nothing on it,
gpt1 is a ZFS root pool (but all grub requirements are on the EFI FAT
partition gpt2).



On Fri, Jul 7, 2017 at 11:13 AM, Gordan Bobic <address@hidden>
wrote:

> I did a bit more experimenting and I reinstalled the distro from scratch
> and grub still boots into rescue mode every time, and all that is required
> to make it boot into normal mode is typing "normal" without changing any
> variables.
> Could this be some weird timeout issue? Is there a way to make grub print
> out verbose debug info during stage 1 boot? What could be causing it to not
> automatically go into normal mode when there is obviously no configuration
> issue preventing it?
> Is there a way to script what it does at stage 1 to make it retry "normal"
> a few times?
>
> On Sat, Jul 1, 2017 at 11:20 PM, Gordan Bobic <address@hidden>
> wrote:
>
>> My impression is that the key difference is that you install grub2-efi
>> package instead of grub2 package.
>> But if I am missing a procedure, please, do elaborate.
>>
>> On Sat, Jul 1, 2017 at 11:03 PM, Satish Patel <address@hidden>
>> wrote:
>>
>>> I believe UEFI has different method to re-install grub.
>>>
>>> Sent from my iPhone
>>>
>>> > On Jul 1, 2017, at 5:30 PM, Gordan Bobic <address@hidden>
>>> wrote:
>>> >
>>> > I have a really weird issue that I am struggling to figure out.
>>> >
>>> > Grub always boots to rescue mode prompt:
>>> >
>>> > grub>
>>> >
>>> > But there is no obvious configuration problem, all I have to do to
>>> make it
>>> > boot properly is:
>>> >
>>> > grub> normal
>>> >
>>> > and it boots straight up to the boot menu and everything proceeds
>>> without
>>> > any intervention as expected. So root / prefix are obviously already
>>> > correct.
>>> >
>>> > I re-did grub2-install (CentOS 7) and it makes no difference. It's a
>>> UEFI
>>> > system.
>>> >
>>> > What else can I try? Is there a way to explicitly script "normal" into
>>> what
>>> > it tries to execute by default?
>>> >
>>> > Many thanks.
>>> >
>>> > Gordan
>>> > _______________________________________________
>>> > Help-grub mailing list
>>> > address@hidden
>>> > https://lists.gnu.org/mailman/listinfo/help-grub
>>>
>>
>>
>