diff options
Diffstat (limited to 'nixpkgs/pkgs/tools/misc/memtest86-efi/default.nix')
| -rw-r--r-- | nixpkgs/pkgs/tools/misc/memtest86-efi/default.nix | 33 |
1 files changed, 24 insertions, 9 deletions
diff --git a/nixpkgs/pkgs/tools/misc/memtest86-efi/default.nix b/nixpkgs/pkgs/tools/misc/memtest86-efi/default.nix index 9f029ee5ded..c33aa074404 100644 --- a/nixpkgs/pkgs/tools/misc/memtest86-efi/default.nix +++ b/nixpkgs/pkgs/tools/misc/memtest86-efi/default.nix @@ -1,4 +1,10 @@ -{ fetchzip, lib, p7zip, stdenv }: +{ stdenv +, lib +, fetchzip +, utillinux +, jq +, mtools +}: stdenv.mkDerivation rec { pname = "memtest86-efi"; @@ -22,19 +28,28 @@ stdenv.mkDerivation rec { stripRoot = false; }; - nativeBuildInputs = [ p7zip ]; + nativeBuildInputs = [ + utillinux + jq + mtools + ]; installPhase = '' - mkdir -p $out - # memtest86 is distributed as a bootable USB image. It contains the actual # memtest86 EFI app. # - # The following command uses p7zip to extract the actual EFI app from the - # usb image so that it can be installed directly on the hard drive. - 7z x -o$TEMP/temp-efi-dirs $src/memtest86-usb.img - 7z x -o$TEMP/memtest86-files $TEMP/temp-efi-dirs/EFI\ System\ Partition.img - cp -r $TEMP/memtest86-files/EFI/BOOT/* $out/ + # The following uses sfdisk to calculate the offset of the FAT EFI System + # Partition in the disk image, and mcopy to extract the actual EFI app from + # the filesystem so that it can be installed directly on the hard drive. + IMG=$src/memtest86-usb.img + ESP_OFFSET=$(sfdisk --json $IMG | jq -r ' + # Partition type GUID identifying EFI System Partitions + def ESP_GUID: "C12A7328-F81F-11D2-BA4B-00A0C93EC93B"; + .partitiontable | + .sectorsize * (.partitions[] | select(.type == ESP_GUID) | .start) + ') + mkdir $out + mcopy -vsi $IMG@@$ESP_OFFSET ::'/EFI/BOOT/*' $out/ ''; meta = with lib; { |