diff options
Diffstat (limited to 'gnu/system')
| -rw-r--r-- | gnu/system/grub.scm | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/gnu/system/grub.scm b/gnu/system/grub.scm index e789e4c591..85a9fca9ff 100644 --- a/gnu/system/grub.scm +++ b/gnu/system/grub.scm @@ -63,9 +63,12 @@ (initrd menu-entry-initrd)) ; file name of the initrd as a gexp (define* (grub-configuration-file config entries - #:key (system (%current-system))) + #:key + (system (%current-system)) + (old-entries '())) "Return the GRUB configuration file corresponding to CONFIG, a -<grub-configuration> object." +<grub-configuration> object. OLD-ENTRIES is taken to be a list of menu +entries corresponding to old generations of the system." (define all-entries (append entries (grub-configuration-menu-entries config))) @@ -93,7 +96,14 @@ search.file ~a/bzImage~%" (($ <menu-entry> _ linux) linux)) all-entries)) - #$@(map entry->gexp all-entries)))) + #$@(map entry->gexp all-entries) + + #$@(if (pair? old-entries) + #~((format port " +submenu \"GNU system, old configurations...\" {~%") + #$@(map entry->gexp old-entries) + (format port "}~%")) + #~())))) (gexp->derivation "grub.cfg" builder)) |