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-rw-r--r--gnu/system.scm22
1 files changed, 21 insertions, 1 deletions
diff --git a/gnu/system.scm b/gnu/system.scm
index 37a05b270b..f213379f03 100644
--- a/gnu/system.scm
+++ b/gnu/system.scm
@@ -109,7 +109,7 @@
boot-parameters-kernel
boot-parameters-kernel-arguments
boot-parameters-initrd
- read-boot-parameters
+ read-boot-parameters-file
local-host-aliases
%setuid-programs
@@ -907,4 +907,24 @@ being stored into the \"parameters\" file)."
system)
#f)))
+(define (read-boot-parameters-file system)
+ "Read boot parameters from SYSTEM's (system or generation) \"parameters\"
+file and returns the corresponding <boot-parameters> object or #f if the
+format is unrecognized.
+The object has its kernel-arguments extended in order to make it bootable."
+ (let* ((file (string-append system "/parameters"))
+ (params (call-with-input-file file read-boot-parameters))
+ (root (boot-parameters-root-device params))
+ (root-device (if (bytevector? root)
+ (uuid->string root)
+ root))
+ (kernel-arguments (boot-parameters-kernel-arguments params)))
+ (if params
+ (boot-parameters
+ (inherit params)
+ (kernel-arguments (bootable-kernel-arguments kernel-arguments
+ system
+ root-device)))
+ #f)))
+
;;; system.scm ends here