[Bug 502138] Re: grub-pc keystatus check
ubuntu at iam.tj
Tue May 10 06:46:20 UTC 2016
Setting this to Fix Released since 30_osprober was modified since 2010
and this no longer affects any Ubuntu release.
An issue that may be confused with this is bug 425979 "[UEFI boot only]
Holding shift fails to display grub2 menu"
** Changed in: grub2 (Ubuntu)
Status: Triaged => Fix Released
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grub-pc keystatus check
Status in grub2 package in Ubuntu:
Binary package hint: grub2
I don't know if this is a bug or by intentional design.
My question relates to the availability to use the SHIFT key to
display the Grub 2 menu during boot.
The keystatus check is nested within 30_os-prober conditionals. Unless
30_os-prober is executed and these conditions are met it is not
incorporated into grub.cfg.
Additionally, it seems that the keystatus check turns control back
over to GRUB_TIMEOUT if invoked. Thus, if GRUB_TIMEOUT=0 the keystatus
check may note the depressed SHIFT key but the default menu will
automatically boot without stopping the boot sequence to display the
If it is designed merely to interrupt the GRUB_HIDDEN_TIMEOUT and then
immediately revert to the GRUB_TIMEOUT, I would suggest that the user
wants to see the menu when the SHIFT key is pressed, even if the
timeout is set to 0.
Workaround: I can incorporate the keystatus check by putting it into
40_custom and can then display the menu regardless of the settings.
Date: Fri Jan 1 13:48:29 2010
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
Package: grub-pc 1.97~beta4-1ubuntu4.1
PATH=(custom, no user)
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
Uname: Linux 2.6.31-14-generic x86_64
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