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* LVM support
@ 2015-04-15  5:07 Tomáš Čech
  2015-04-15 12:32 ` Ludovic Courtès
  0 siblings, 1 reply; 11+ messages in thread
From: Tomáš Čech @ 2015-04-15  5:07 UTC (permalink / raw)
  To: guix-devel

Hi Guix,

as project for my Hackweek in SUSE I decided to spend my time on LVM
support in GuixSD - something I miss greatly. This also means that
I'll have much less time for that after this week :(

So far I spent time on reviving my GuixSD installation and preparing
staticly linked binaries for initrd. I have now lvm2 package with
extra output "static". 

What next?

Now the simplest way would be to simply call

vgchange --activate y

Matching configuration could be one configuration option:
(use-lvm?)


That would scan all block devices and look for LVM signature.

Pros:
- it's super simple!
Cons:
- if LVM with filesystem required at boot-time is not found, error
  is not detected or returned by LVM itself



Slightly bit more complicated way could be

vgchange --activate y <volume_group_name>

for every volume group defined in system configuration. Matching configuration could be
(logical-volume-groups '("system" "data"))

e.g. specify list of volume group names used by system.

Pros:
- still simple
- if group activation fails, I can detect it and report it to user

Cons:
- some block devices with LVM may not be available at boot-time (like
  iSCSI devices accessible through network only or Luks devices
  available after entering password)

That is my current approach.



I could also specify whether it should be made available at boot time or not
(logical-volume-groups '('("system" #t)
                         '("data"   #f)))

(sorry for my poor Scheme taste here :)

Pros:
- with this I could say that volume group "system" should be activated
  at boot time, but "data" should be activated later.

Cons:
- starting to be more complicated - I need both initrd stage LVM
  activation and root filesystem stage LVM activation (implemented as
  service? which dependencies it has?)


Or do it in different way. I'd rather not propose here any wild ideas
for configuration but if you can devise something better, please tell
me...



S_W

^ permalink raw reply	[flat|nested] 11+ messages in thread
* Roadmap for Guix 1.0
@ 2018-07-29 15:18 Ludovic Courtès
  2018-07-30  1:23 ` Pjotr Prins
  0 siblings, 1 reply; 11+ messages in thread
From: Ludovic Courtès @ 2018-07-29 15:18 UTC (permalink / raw)
  To: guix-devel


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Hello Guix!

I’ve pushed to guix/maintenance.git a list of things that IMO we should
do or might want to do for 1.0, with the understanding that 1.0 should
happen in 2018 (or early 2019 at the latest!).  :-)

  https://git.savannah.gnu.org/cgit/guix/maintenance.git/tree/doc/1.0.org

The list focuses on “big item” features and tasks, omitting routine bug
fixes and improvements.  Some of these items don’t require a lot of work
or expertise though, so hopefully there’s enough on everyone’s plate.

Feel free to comment, volunteer, add items (but not too many!), remove
items, promote items, etc.  Committers should feel free to edit the file
directly in maintenance.git, especially to mark things as done.  ;-)

Copy of the file attached below.

Ludo’.

PS: I’m starting the discussion but will go AFK soon after sending this
    message.  :-)


[-- Attachment #1.2: The road to 1.0. --]
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#+TITLE: Roadmap for Guix 1.0, 2018
#+STARTUP: hidestars

* 'guix pull' & co.
** TODO 'guix pull' honors ~/.config/guix/channels.scm
*** (guix channels) module provides easy way to build a set of channels
*** (guix inferior) uses that to allow interaction with an arbitrary Guix
** MAYBE 'guix pull' & commit authentication <https://bugs.gnu.org/22883>
** TODO 'guix package -m' (?) allows users to specify a Guix channel
** TODO Profile manifest entries record the channel instance they come from
** TODO build-self.scm trampoline runs faster
* UI/UX
** TODO Add colors for messages (error, warnings, hints, and possibly build logs)
** MAYBE Hide build logs in some UIs, as in ‘wip-ui’ branch & Cuirass
** MAYBE Rework grafts and profile hooks to run as “build continuations” <https://bugs.gnu.org/28310>
** MAYBE Add ‘guix install’ alias
** TODO Add ‘guix system --delete-generations’
** MAYBE Polish & merge ‘wip-installer’
* core
** TODO Update & merge ‘wip-build-systems-gexp’
** MAYBE Merge ‘wip-gexp-hygiene’ if we have a portable way to compute gensyms
** TODO Use [[https://notabug.org/cwebber/guile-gcrypt][Guile-gcrypt]] instead of (guix gcrypt) & co.
** TODO Minimal bootstrap with Mes & co. for i686/x86_64 merged (‘wip-bootstrap’)
** MAYBE Use [[https://gitlab.com/rutger.van.beusekom/gash][Gash]] instead of Bash during bootstrap
* infrastructure
** TODO ci.guix.gnu.org points to berlin.guixsd.org
** TODO ci.guix.gnu.org is the default substitute server; hydra.gnu.org is deprecated
** TODO ARM build machines (+ qemu-binfmt) added behind berlin.guixsd.org
** TODO Tatiana's web UI deployed on berlin.guixsd.org
** TODO Clément's Cuirass improvements deployed (inputs, non-blocking SQLite, etc.)
** TODO web site available at guix.gnu.org
*** DNS already set up with two entries, but how to do deal with LE certs and all?
** TODO Mumi web UI available at patches.guix.gnu.org and bugs.guix.gnu.org
** TODO berlin.guixsd.org has big storage, uses a TTL > 60 days
** TODO Nar bandwidth issues on berlin fixed (nginx misconfiguration?)
* miscellaneous
** TODO “GuixSD” renamed to “Guix System”?
** TODO “Cuirass” renamed to “Guix CI”?

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^ permalink raw reply	[flat|nested] 11+ messages in thread

end of thread, other threads:[~2018-08-19 11:06 UTC | newest]

Thread overview: 11+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2015-04-15  5:07 LVM support Tomáš Čech
2015-04-15 12:32 ` Ludovic Courtès
2015-04-16  6:24   ` Tomáš Čech
2015-04-16 12:47     ` Ludovic Courtès
2015-04-17  1:09       ` Tomáš Čech
2015-04-21 15:52         ` Ludovic Courtès
2015-05-01 11:32           ` Tomáš Čech
2015-05-03 19:59             ` Ludovic Courtès
2015-05-07  8:02               ` Tomáš Čech
2015-05-19 10:32                 ` Ludovic Courtès
  -- strict thread matches above, loose matches on Subject: below --
2018-07-29 15:18 Roadmap for Guix 1.0 Ludovic Courtès
2018-07-30  1:23 ` Pjotr Prins
2018-07-30  9:02   ` Nils Gillmann
2018-07-30 12:47     ` Pierre Neidhardt
2018-08-19 11:06       ` LVM support Ludovic Courtès

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