guix system: Add '--skip-checks'.

Fixes <https://bugs.gnu.org/30760>.
Reported by Tomáš Čech <sleep_walker@gnu.org>.

* guix/scripts/system.scm (perform-action): Add #:skip-safety-checks?
and honor it.
(show-help, %options): Add --skip-checks.
(process-action): Pass #:skip-safety-checks? to 'perform-action'.
* doc/guix.texi (Invoking guix system): Document --skip-checks.
This commit is contained in:
Ludovic Courtès 2018-03-15 10:28:22 +01:00
parent f8ec8d96d6
commit 61b1dbbdcd
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2 changed files with 25 additions and 3 deletions

View File

@ -20458,6 +20458,16 @@ of the image size as a function of the size of the system declared in
Make @var{file} a symlink to the result, and register it as a garbage
collector root.
@item --skip-checks
Skip pre-installation safety checks.
By default, @command{guix system init} and @command{guix system
reconfigure} perform safety checks: they make sure the file systems that
appear in the @code{operating-system} declaration actually exist
(@pxref{File Systems}), and that any Linux kernel modules that may be
needed at boot time are listed in @code{initrd-modules} (@pxref{Initial
RAM Disk}). Passing this option skips these tests altogether.
@item --on-error=@var{strategy}
Apply @var{strategy} when an error occurs when reading @var{file}.
@var{strategy} may be one of the following:

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@ -733,7 +733,8 @@ and TARGET arguments."
(#$installer #$bootloader #$device #$target))))))
(define* (perform-action action os
#:key install-bootloader?
#:key skip-safety-checks?
install-bootloader?
dry-run? derivations-only?
use-substitutes? bootloader-target target
image-size file-system-type full-boot?
@ -750,7 +751,10 @@ When DERIVATIONS-ONLY? is true, print the derivation file name(s) without
building anything.
When GC-ROOT is a path, also make that path an indirect root of the build
output when building a system derivation, such as a disk image."
output when building a system derivation, such as a disk image.
When SKIP-SAFETY-CHECKS? is true, skip the file system and initrd module
static checks."
(define println
(cut format #t "~a~%" <>))
@ -760,7 +764,8 @@ output when building a system derivation, such as a disk image."
;; Check whether the declared file systems exist. This is better than
;; instantiating a broken configuration. Assume that we can only check if
;; running as root.
(when (memq action '(init reconfigure))
(when (and (not skip-safety-checks?)
(memq action '(init reconfigure)))
(check-mapped-devices os)
(when (zero? (getuid))
(check-file-system-availability (operating-system-file-systems os))
@ -933,6 +938,8 @@ Some ACTIONS support additional ARGS.\n"))
--expose=SPEC for 'vm', expose host file system according to SPEC"))
(display (G_ "
--full-boot for 'vm', make a full boot sequence"))
(display (G_ "
--skip-checks skip file system and initrd module safety checks"))
(newline)
(display (G_ "
-h, --help display this help and exit"))
@ -974,6 +981,9 @@ Some ACTIONS support additional ARGS.\n"))
(option '("full-boot") #f #f
(lambda (opt name arg result)
(alist-cons 'full-boot? #t result)))
(option '("skip-checks") #f #f
(lambda (opt name arg result)
(alist-cons 'skip-safety-checks? #t result)))
(option '("share") #t #f
(lambda (opt name arg result)
@ -1067,6 +1077,8 @@ resulting from command-line parsing."
#:derivations-only? (assoc-ref opts
'derivations-only?)
#:use-substitutes? (assoc-ref opts 'substitutes?)
#:skip-safety-checks?
(assoc-ref opts 'skip-safety-checks?)
#:file-system-type (assoc-ref opts 'file-system-type)
#:image-size (assoc-ref opts 'image-size)
#:full-boot? (assoc-ref opts 'full-boot?)