system: Record store file system info in each generation.
* gnu/system.scm (<boot-parameters>)[store-device, store-mount-point]: New fields. (read-boot-parameters): Initialize them. (operating-system-grub.cfg): Likewise. Remove STORE-FS argument from call to 'grub-configuration-file'. (operating-system-parameters-file): Add 'store' element in 'boot-parameters'. * gnu/system/grub.scm (strip-mount-point): Replace 'store-fs' parameter by 'mount-point'; adjust accordingly. Adjust callers. (<menu-entry>)[device, device-mount-point]: New fields. (eye-candy): Replace 'root-fs' parameter by 'store-device'; add 'store-mount-point'. Use keyword arguments for 'system' and 'port'. (grub-root-search): Remove 'root-fs' by 'device' and adjust accordingly. (grub-configuration-file): Remove 'store-fs' parameter. Adjust accordingly. * guix/scripts/system.scm (previous-grub-entries): Initialize 'device' and 'device-mount-point' fields from PARAMS. * doc/guix.texi (GRUB Configuration): Document 'device' and 'device-mount-point'. Explain that 'linux' can be prefixed by a GRUB device name. Co-authored-by: Ludovic Courtès <ludo@gnu.org>master
Chris Marusich
Ludovic Courtès
parent
b7f3cf2c9a
commit
1ef8b72a7f
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@ -11088,6 +11088,17 @@ The Linux kernel image to boot, for example:
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(file-append linux-libre "/bzImage")
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@end example
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It is also possible to specify a device explicitly in the file path
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using GRUB's device naming convention (@pxref{Naming convention,,, grub,
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GNU GRUB manual}), for example:
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@example
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"(hd0,msdos1)/boot/vmlinuz"
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@end example
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If the device is specified explicitly as above, then the @code{device}
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field is ignored entirely.
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@item @code{linux-arguments} (default: @code{()})
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The list of extra Linux kernel command-line arguments---e.g.,
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@code{("console=ttyS0")}.
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@ -11096,6 +11107,22 @@ The list of extra Linux kernel command-line arguments---e.g.,
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A G-Expression or string denoting the file name of the initial RAM disk
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to use (@pxref{G-Expressions}).
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@item @code{device} (default: @code{#f})
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The device where the kernel and initrd are to be found---i.e., the GRUB
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@dfn{root} for this menu entry (@pxref{root,,, grub, GNU GRUB manual}).
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This may be a file system label (a string), a file system UUID (a
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bytevector, @pxref{File Systems}), or @code{#f}, in which case GRUB will
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search the device containing the file specified by the @code{linux}
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field (@pxref{search,,, grub, GNU GRUB manual}). It must @emph{not} be
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an OS device name such as @file{/dev/sda1}.
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@item @code{device-mount-point} (default: @code{"/"})
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The mount point of the above device on the system. You probably do not
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need to change the default value. GuixSD uses it to strip the prefix of
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store file names for systems where @file{/gnu} or @file{/gnu/store} is
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on a separate partition.
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@end table
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@end deftp
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@ -2,6 +2,7 @@
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;;; Copyright © 2013, 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
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;;; Copyright © 2015, 2016 Alex Kost <alezost@gmail.com>
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;;; Copyright © 2016 Chris Marusich <cmmarusich@gmail.com>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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@ -99,6 +100,8 @@
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boot-parameters?
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boot-parameters-label
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boot-parameters-root-device
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boot-parameters-store-device
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boot-parameters-store-mount-point
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boot-parameters-kernel
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boot-parameters-kernel-arguments
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boot-parameters-initrd
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@ -733,6 +736,12 @@ listed in OS. The C library expects to find it under
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(file-system-device root-fs)))
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(entries -> (list (menu-entry
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(label label)
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;; The device where the kernel and initrd live.
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(device (file-system-device store-fs))
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(device-mount-point
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(file-system-mount-point store-fs))
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(linux kernel)
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(linux-arguments
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(cons* (string-append "--root=" root-device)
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@ -741,8 +750,7 @@ listed in OS. The C library expects to find it under
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"/boot")
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(operating-system-kernel-arguments os)))
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(initrd initrd)))))
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(grub-configuration-file (operating-system-bootloader os)
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store-fs entries
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(grub-configuration-file (operating-system-bootloader os) entries
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#:old-entries old-entries)))
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(define (operating-system-parameters-file os)
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@ -750,16 +758,24 @@ listed in OS. The C library expects to find it under
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this file is the reconstruction of GRUB menu entries for old configurations."
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(mlet %store-monad ((initrd (operating-system-initrd-file os))
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(root -> (operating-system-root-file-system os))
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(store -> (operating-system-store-file-system os))
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(label -> (kernel->grub-label
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(operating-system-kernel os))))
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(gexp->file "parameters"
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#~(boot-parameters (version 0)
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(label #$label)
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(root-device #$(file-system-device root))
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(kernel #$(operating-system-kernel-file os))
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(kernel-arguments
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#$(operating-system-kernel-arguments os))
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(initrd #$initrd))
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#~(boot-parameters
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(version 0)
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(label #$label)
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(root-device #$(file-system-device root))
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(kernel #$(operating-system-kernel-file os))
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(kernel-arguments
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#$(operating-system-kernel-arguments os))
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(initrd #$initrd)
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(store
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(device #$(case (file-system-title store)
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((uuid) (file-system-device store))
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((label) (file-system-device store))
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(else #f)))
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(mount-point #$(file-system-mount-point store))))
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#:set-load-path? #f)))
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@ -770,7 +786,16 @@ this file is the reconstruction of GRUB menu entries for old configurations."
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(define-record-type* <boot-parameters>
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boot-parameters make-boot-parameters boot-parameters?
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(label boot-parameters-label)
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;; Because we will use the 'store-device' to create the GRUB search command,
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;; the 'store-device' has slightly different semantics than 'root-device'.
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;; The 'store-device' can be a file system uuid, a file system label, or #f,
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;; but it cannot be a device path such as "/dev/sda3", since GRUB would not
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;; understand that. The 'root-device', on the other hand, corresponds
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;; exactly to the device field of the <file-system> object representing the
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;; OS's root file system, so it might be a device path like "/dev/sda3".
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(root-device boot-parameters-root-device)
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(store-device boot-parameters-store-device)
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(store-mount-point boot-parameters-store-mount-point)
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(kernel boot-parameters-kernel)
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(kernel-arguments boot-parameters-kernel-arguments)
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(initrd boot-parameters-initrd))
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@ -804,7 +829,21 @@ this file is the reconstruction of GRUB menu entries for old configurations."
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(('initrd ('string-append directory file)) ;the old format
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(string-append directory file))
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(('initrd (? string? file))
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file)))))
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file)))
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(store-device
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(match (assq 'store rest)
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(('store ('device device) _ ...)
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device)
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(_ ;the old format
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root)))
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(store-mount-point
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(match (assq 'store rest)
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(('store ('device _) ('mount-point mount-point) _ ...)
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mount-point)
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(_ ;the old format
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"/")))))
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(x ;unsupported format
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(warning (_ "unrecognized boot parameters for '~a'~%")
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system)
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@ -1,5 +1,6 @@
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2013, 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2016 Chris Marusich <cmmarusich@gmail.com>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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@ -32,6 +33,7 @@
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#:use-module (ice-9 match)
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#:use-module (ice-9 regex)
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#:use-module (srfi srfi-1)
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#:use-module (rnrs bytevectors)
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#:export (grub-image
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grub-image?
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grub-image-aspect-ratio
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@ -61,16 +63,15 @@
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;;;
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;;; Code:
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(define (strip-mount-point fs file)
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"Strip the mount point of FS from FILE, which is a gexp or other lowerable
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object denoting a file name."
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(let ((mount-point (file-system-mount-point fs)))
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(if (string=? mount-point "/")
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file
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#~(let ((file #$file))
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(if (string-prefix? #$mount-point file)
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(substring #$file #$(string-length mount-point))
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file)))))
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(define (strip-mount-point mount-point file)
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"Strip MOUNT-POINT from FILE, which is a gexp or other lowerable object
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denoting a file name."
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(if (string=? mount-point "/")
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file
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#~(let ((file #$file))
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(if (string-prefix? #$mount-point file)
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(substring #$file #$(string-length mount-point))
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file))))
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(define-record-type* <grub-image>
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grub-image make-grub-image
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@ -121,6 +122,10 @@ object denoting a file name."
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menu-entry make-menu-entry
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menu-entry?
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(label menu-entry-label)
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(device menu-entry-device ; file system uuid, label, or #f
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(default #f))
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(device-mount-point menu-entry-device-mount-point
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(default "/"))
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(linux menu-entry-linux)
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(linux-arguments menu-entry-linux-arguments
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(default '())) ; list of string-valued gexps
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@ -162,12 +167,14 @@ WIDTH/HEIGHT, or #f if none was found."
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(with-monad %store-monad
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(return #f)))))
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(define (eye-candy config root-fs system port)
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(define* (eye-candy config store-device store-mount-point
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#:key system port)
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"Return in %STORE-MONAD a gexp that writes to PORT (a port-valued gexp) the
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'grub.cfg' part concerned with graphics mode, background images, colors, and
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all that. ROOT-FS is a file-system object denoting the root file system where
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the store is. SYSTEM must be the target system string---e.g.,
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\"x86_64-linux\"."
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all that. STORE-DEVICE designates the device holding the store, and
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STORE-MOUNT-POINT is its mount point; these are used to determine where the
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background image and fonts must be searched for. SYSTEM must be the target
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system string---e.g., \"x86_64-linux\"."
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(define setup-gfxterm-body
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;; Intel systems need to be switched into graphics mode, whereas most
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;; other modern architectures have no other mode and therefore don't need
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@ -191,7 +198,7 @@ the store is. SYSTEM must be the target system string---e.g.,
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(symbol->string (assoc-ref colors 'bg)))))
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(define font-file
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(strip-mount-point root-fs
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(strip-mount-point store-mount-point
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(file-append grub "/share/grub/unicode.pf2")))
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(mlet* %store-monad ((image (grub-background-image config)))
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@ -215,10 +222,10 @@ else
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set menu_color_highlight=white/blue
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fi~%"
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#$setup-gfxterm-body
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#$(grub-root-search root-fs font-file)
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#$(grub-root-search store-device font-file)
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#$font-file
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#$(strip-mount-point root-fs image)
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#$(strip-mount-point store-mount-point image)
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#$(theme-colors grub-theme-color-normal)
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#$(theme-colors grub-theme-color-highlight))))))
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@ -227,8 +234,8 @@ fi~%"
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;;; Configuration file.
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;;;
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(define (grub-root-search root-fs file)
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"Return the GRUB 'search' command to look for ROOT-FS, which contains FILE,
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(define (grub-root-search device file)
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"Return the GRUB 'search' command to look for DEVICE, which contains FILE,
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a gexp. The result is a gexp that can be inserted in the grub.cfg-generation
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code."
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;; Usually FILE is a file name gexp like "/gnu/store/…-linux/vmlinuz", but
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@ -236,20 +243,18 @@ code."
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;; custom menu entries. In the latter case, don't emit a 'search' command.
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(if (and (string? file) (not (string-prefix? "/" file)))
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""
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(case (file-system-title root-fs)
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;; Preferably refer to ROOT-FS by its UUID or label. This is more
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(match device
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;; Preferably refer to DEVICE by its UUID or label. This is more
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;; efficient and less ambiguous, see <>.
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((uuid)
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((? bytevector? uuid)
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(format #f "search --fs-uuid --set ~a"
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(uuid->string (file-system-device root-fs))))
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((label)
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(format #f "search --label --set ~a"
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(file-system-device root-fs)))
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(else
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;; As a last resort, look for any device containing FILE.
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(uuid->string device)))
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((? string? label)
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(format #f "search --label --set ~a" label))
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(#f
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#~(format #f "search --file --set ~a" #$file)))))
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(define* (grub-configuration-file config store-fs entries
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(define* (grub-configuration-file config entries
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#:key
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(system (%current-system))
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(old-entries '()))
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@ -262,22 +267,30 @@ corresponding to old generations of the system."
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(define entry->gexp
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(match-lambda
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(($ <menu-entry> label linux arguments initrd)
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;; Use the right file names for LINUX and STORE-FS in case STORE-FS is
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;; not the "/" file system.
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(let ((linux (strip-mount-point store-fs linux))
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(initrd (strip-mount-point store-fs initrd)))
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(($ <menu-entry> label device device-mount-point
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linux arguments initrd)
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;; Here DEVICE is the store and DEVICE-MOUNT-POINT is its mount point.
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;; Use the right file names for LINUX and INITRD in case
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;; DEVICE-MOUNT-POINT is not "/", meaning that the store is on a
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;; separate partition.
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(let ((linux (strip-mount-point device-mount-point linux))
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(initrd (strip-mount-point device-mount-point initrd)))
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#~(format port "menuentry ~s {
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~a
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linux ~a ~a
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initrd ~a
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}~%"
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#$label
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#$(grub-root-search store-fs linux)
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#$(grub-root-search device linux)
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#$linux (string-join (list #$@arguments))
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#$initrd)))))
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(mlet %store-monad ((sugar (eye-candy config store-fs system #~port)))
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(mlet %store-monad ((sugar (eye-candy config
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(menu-entry-device (first entries))
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(menu-entry-device-mount-point
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(first entries))
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#:system system
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#:port #~port)))
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(define builder
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#~(call-with-output-file #$output
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(lambda (port)
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@ -1,6 +1,7 @@
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;;; GNU Guix --- Functional package management for GNU
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||||
;;; Copyright © 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
|
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;;; Copyright © 2016 Alex Kost <alezost@gmail.com>
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;;; Copyright © 2016 Chris Marusich <cmmarusich@gmail.com>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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@ -384,6 +385,8 @@ it atomically, and then run OS's activation script."
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(label (string-append label " (#"
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(number->string number) ", "
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(seconds->string time) ")"))
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(device (boot-parameters-store-device params))
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(device-mount-point (boot-parameters-store-mount-point params))
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(linux kernel)
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(linux-arguments
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(cons* (string-append "--root=" root-device)
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Loading…
Reference in New Issue