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-rw-r--r--gnu/system.scm26
1 files changed, 25 insertions, 1 deletions
diff --git a/gnu/system.scm b/gnu/system.scm
index ee0280c069..edcfaf66fe 100644
--- a/gnu/system.scm
+++ b/gnu/system.scm
@@ -79,6 +79,7 @@
operating-system-locale-libcs
operating-system-mapped-devices
operating-system-file-systems
+ operating-system-store-file-system
operating-system-activation-script
operating-system-derivation
@@ -678,12 +679,34 @@ listed in OS. The C library expects to find it under
(package-version kernel)
" (alpha)"))
+(define (store-file-system file-systems)
+ "Return the file system object among FILE-SYSTEMS that contains the store."
+ (match (filter (lambda (fs)
+ (and (file-system-mount? fs)
+ (not (memq 'bind-mount (file-system-flags fs)))
+ (string-prefix? (file-system-mount-point fs)
+ (%store-prefix))))
+ file-systems)
+ ((and candidates (head . tail))
+ (reduce (lambda (fs1 fs2)
+ (if (> (string-length (file-system-mount-point fs1))
+ (string-length (file-system-mount-point fs2)))
+ fs1
+ fs2))
+ head
+ candidates))))
+
+(define (operating-system-store-file-system os)
+ "Return the file system that contains the store of OS."
+ (store-file-system (operating-system-file-systems os)))
+
(define* (operating-system-grub.cfg os #:optional (old-entries '()))
"Return the GRUB configuration file for OS. Use OLD-ENTRIES to populate the
\"old entries\" menu."
(mlet* %store-monad
((system (operating-system-derivation os))
(root-fs -> (operating-system-root-file-system os))
+ (store-fs -> (operating-system-store-file-system os))
(kernel -> (operating-system-kernel os))
(root-device -> (if (eq? 'uuid (file-system-title root-fs))
(uuid->string (file-system-device root-fs))
@@ -698,7 +721,8 @@ listed in OS. The C library expects to find it under
"/boot")
(operating-system-kernel-arguments os)))
(initrd #~(string-append #$system "/initrd"))))))
- (grub-configuration-file (operating-system-bootloader os) entries
+ (grub-configuration-file (operating-system-bootloader os)
+ store-fs entries
#:old-entries old-entries)))
(define (operating-system-parameters-file os)