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-rw-r--r--perl-install/bootloader.pm3
1 files changed, 2 insertions, 1 deletions
diff --git a/perl-install/bootloader.pm b/perl-install/bootloader.pm
index fa678bce4..3204aa194 100644
--- a/perl-install/bootloader.pm
+++ b/perl-install/bootloader.pm
@@ -2103,7 +2103,8 @@ sub write_grub2 {
write_grub2_sysconfig($bootloader, $o_all_hds, $o_backup_extension);
my $f1 = "$::prefix/boot/grub2/grub.cfg";
- renamef($f1, $f1 . '.old');
+ # we won't just rename as update-grub2 (more likely os-prober may fail):
+ cp_af($f1, $f1 . '.old');
run_program::rooted($::prefix, 'update-grub2', '2>', \$error) or die "update-grub2 failed: $error";
log::l("update-grub2 logs: $error");