On testing this again on Ubuntu 18.10 dev with grub-pc 2.02-2ubuntu13
and this time by not setting GRUB_HIDDEN_TIMEOUT at all, setting
GRUB_TIMEOUT to 0.0 and then testing with GRUB_TIMEOUT_STYLE being set
to menu (while keeping shift pressed at booting), hidden (while keeping
ESC pressed at
Maybe before executing "sleep --interruptable $timeout" an extra check
could be done if $timeout is 0 and if true executing the function
directly instead of using sleep. Could this be a potential solution?
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"GRUB loading" message comes from the bootstrap MBR code (the ~440 bytes
in sector 0) of the boot device and is activated whilst shift is
detected.
The boot-strap code then loads GRUB's core image which is what we might
call the real GRUB code, where the $timeout value has an effect.
The only
> Testing for the Shift modifier being held down is done by "sleep
> --interruptable $timeout" - if
> $timeout is 0 this function isn't used and therefore no check of that state
> of the Shift modifier
> flags is performed.
But pressing Shift on booting shows "GRUB loading." so there is
Upstream comment #2 referred to above:
Mon 31 Mar 2014 08:49:03 AM UTC, comment #2:
I'm noticing a similar problem: GRUB_HIDDEN_TIMEOUT is set to 0,
GRUB_TIMEOUT is set to 0.0 (to bypass a check of os-prober which would
set it to 10 if set to 0) and GRUB_TIMEOUT_STYLE is set to menu (but I'm
not
I'm now on grub2 2.02~beta2-36ubuntu1 and the issue still exists. It is
a bit annoying to see now for ~2 years always on booting in a multiboot
environment the boot menu because of it. Any idea what could cause this
issue?
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Marking as Triaged; there is at least one other instance of this bug
reported here; will mark as duplicate as soon as I find it again :)
** Changed in: grub2 (Ubuntu)
Status: Confirmed = Triaged
** Changed in: grub2 (Ubuntu)
Importance: Undecided = Medium
** Tags added: multiboot
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: grub2 (Ubuntu)
Status: New = Confirmed
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Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1401318
Title:
GRUB
** Bug watch added: GNU Savannah Bug Tracker #40853
http://savannah.gnu.org/bugs/?40853
** Also affects: grub via
http://savannah.gnu.org/bugs/?40853
Importance: Unknown
Status: Unknown
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Bugs, which is
** Summary changed:
- Grub menu doesn't appear after showing GRUB loading.
+ GRUB menu doesn't appear after showing GRUB loading.
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https://bugs.launchpad.net/bugs/1401318
Title:
GRUB
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