Comment 172 for bug 1325801

Yes, isolinux does not work. Moreover when booting it don't even ry to read isolinux.cfg complainig with error shown earlier.

I'm use my own scripts to make bootable WinPE images. And after upgrade ir FAIL.

just try to create bootable fat32 image without any files. Syslinux will be installed succeesfully (like in previous ubuntu) but unlike previous ubuntu it will show boot error innstead of complainig about missing syslinux.cfg

Also, syslinux-legacy does not work too, it shows boot menu, but with generate invalid opcode when tried to boot os.