From: ludo@gnu.org (Ludovic Courtès)
To: Mathieu Othacehe <m.othacehe@gmail.com>
Cc: 27007@debbugs.gnu.org
Subject: bug#27007: boot-parameters are not documented
Date: Tue, 23 May 2017 13:23:08 +0200 [thread overview]
Message-ID: <87efvfyfz7.fsf@gnu.org> (raw)
In-Reply-To: <86r2zfkjhb.fsf@gmail.com> (Mathieu Othacehe's message of "Tue, 23 May 2017 11:31:12 +0200")
Hi,
Mathieu Othacehe <m.othacehe@gmail.com> skribis:
> We can ask him but I guess something like that :
>
> (boot-parameters
> (label "openSUSE")
> (root-device #f)
> (boot-name 'grub)
> (store-device #f)
> (store-mount-point "/")
> (kernel "(hd0,msdos1)/vmlinuz")
> (kernel-arguments (list "root=/dev/penguin/opensuse" "init=/usr/lib/systemd/systemd"))
> (initrd "(hd0,msdos1)/initrd"))
>
> Note that root-device, boot-name, store-device and store-mount-point are
> useless here.
I see. The fact that there are these extra fields that are hard to
grasp as an external user of the API makes me thing that something
simpler like ‘menu-entry’ still makes sense for users. (Of course
<boot-parameters> is the right thing to use internally, no argument
here.)
Concretely, I imagine the user-facing API would remain similar in
spirit; users would write
(operating-system
;; …
(bootloader (bootloader-configuration
;; …
;; Provide custom/extra menu entries here:
(entries (list (menu-entry …))))))
and those entries would be “lowered” to <boot-parameters> somewhere.
That way we’d provide the abstraction level that users may expect (“how
do I add a menu entry for my other distro?”) and at the same time reduce
the risk of mistakes (“I didn’t what to put in ‘store-device’ I put my
pet’s name there”).
WDYT? :-)
>> Sounds good in general, as long as we have default values that make
>> sense.
>
> Ok.
>
>> Can we assume that all the bootloaders have a notion of “menu” and “menu
>> entries”? Or do you think that very notion is not shared by all of
>> them?
>
> We can suppose that it's always possible to add custom entries to
> generated bootloader configuration. That would allow someone switching
> from grub to extlinux to keep his custom entries.
OK, sounds good.
Thanks,
Ludo’.
next prev parent reply other threads:[~2017-05-23 11:24 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-20 20:00 bug#27007: boot-parameters are not documented Tomáš Čech
2017-05-20 20:31 ` Mathieu Othacehe
2017-05-20 21:07 ` Leo Famulari
2017-05-20 21:43 ` Tomáš Čech
2017-05-20 20:52 ` Danny Milosavljevic
2017-05-20 21:00 ` Tomáš Čech
2017-05-22 15:55 ` Ludovic Courtès
2017-05-22 17:31 ` Mathieu Othacehe
2017-05-23 8:13 ` Ludovic Courtès
2017-05-23 9:31 ` Mathieu Othacehe
2017-05-23 9:57 ` Tomáš Čech
2017-05-23 11:23 ` Ludovic Courtès [this message]
2017-05-23 11:40 ` Mathieu Othacehe
2017-05-23 12:24 ` Ludovic Courtès
2017-05-31 7:23 ` bug#27007: [PATCH 0/2] Use menu-entry to define custom bootloader entries Mathieu Othacehe
2017-05-31 7:23 ` bug#27007: [PATCH 1/2] bootloader: " Mathieu Othacehe
2017-05-31 22:11 ` Danny Milosavljevic
2017-06-01 8:34 ` Mathieu Othacehe
2017-06-01 11:14 ` Danny Milosavljevic
2017-06-02 9:29 ` Mathieu Othacehe
2017-06-02 14:30 ` Marius Bakke
2017-06-01 11:22 ` Ludovic Courtès
2017-06-05 10:23 ` Ludovic Courtès
2017-06-06 8:14 ` Mathieu Othacehe
2017-05-31 7:23 ` bug#27007: [PATCH 2/2] doc: Adapt to multiple bootloader support Mathieu Othacehe
2017-05-31 21:57 ` Danny Milosavljevic
2017-06-05 10:38 ` Ludovic Courtès
2017-06-05 10:36 ` Ludovic Courtès
2017-06-05 14:11 ` Danny Milosavljevic
2017-06-06 22:51 ` Ludovic Courtès
2017-06-08 10:59 ` Mathieu Othacehe
2017-06-06 9:20 ` Mathieu Othacehe
2017-05-24 20:11 ` bug#27007: boot-parameters are not documented Danny Milosavljevic
2017-05-26 8:47 ` Ludovic Courtès
2017-05-26 9:03 ` ng0
2017-06-08 10:57 ` bug#27007: [PATCH v2 1/2] bootloader: Use menu-entry to define custom bootloader entries Mathieu Othacehe
2017-06-08 10:57 ` bug#27007: [PATCH v2 2/2] doc: Adapt to multiple bootloader support Mathieu Othacehe
2017-06-08 12:39 ` Ludovic Courtès
2017-06-08 14:33 ` Mathieu Othacehe
2017-06-08 12:36 ` bug#27007: [PATCH v2 1/2] bootloader: Use menu-entry to define custom bootloader entries Ludovic Courtès
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