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nixos: iso-image: solve UNetbootin compatiblity

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There are a number of hidden restrictions on the syslinux
configuration file that come into play when UNetbootin
compatiblity is desired. With this commit these are documented.
This commit is contained in:
Bob van der Linden 2014-11-16 20:13:11 +01:00 committed by Vladimír Čunát
parent a12ddc1964
commit af68f24003
1 changed files with 15 additions and 2 deletions
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17
nixos/modules/installer/cd-dvd/iso-image.nix
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@ -18,6 +18,18 @@ let
max = x: y: if x > y then x else y;
# The configuration file for syslinux.
# Notes on syslinux configuration and UNetbootin compatiblity:
# * Do not use '/syslinux/syslinux.cfg' as the path for this
# configuration. UNetbootin will not parse the file and use it as-is.
# This results in a broken configuration if the partition label does
# not match the specified config.isoImage.volumeID. For this reason
# we're using '/isolinux/isolinux.cfg'.
# * Use APPEND instead of adding command-line arguments directly after
# the LINUX entries.
# * COM32 entries (chainload, reboot, poweroff) are not recognized. They
# result in incorrect boot entries.
baseIsolinuxCfg =
''
SERIAL 0 38400
@ -28,8 +40,9 @@ let
DEFAULT boot
LABEL boot
MENU LABEL Boot NixOS
LINUX /boot/bzImage init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams}
MENU LABEL NixOS ${config.system.nixosVersion} Installer
LINUX /boot/bzImage
APPEND init=${config.system.build.toplevel}/init ${toString config.boot.kernelParams}
INITRD /boot/initrd
LABEL chain