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On Debian, there are apt-cross and dpkg-cross from Emdebian, which let you set up cross-compilation for many architectures (you get cross-compilers and libraries). On Ubuntu, there's a crosschain for ARM, and a project to improve on this. You can also create toolchain using crosstool-ng which is not link to a distribution.


4

The Cross compiler article on wikipedia is quite good. Generally a cross compiler is a compiler producing code for a different kind of system than yours. Usually this means a different target hardware architecture, but it can also mean a different target operating system (or both). Theoretically you could combine these and use a cross-compiler on ...


3

You need the gcc toolchain for both. The toolchain is part of the android source tree. Before you build the entire android source, you use the "lunch" tool, which sets the environment variables such that a prebuilt toolchain can be used. http://source.android.com/source/building-running.html#choose-a-target The page about compiling the android kernel has ...


1

What you could do is download Ubuntu .iso on your computer, then use SFTP (FTP via SSH) to upload .iso file to your server. On your server you can mount the .iso file like this: mkdir /mnt/ubuntu_iso mount -o loop /path/to/file.iso /mnt/ubuntu_iso Now edit /etc/apt/sources.list file and comment out everything that is not cd-rom related. Then run ...


1

If your kernel is 64-bit (and so you can run 64-bit binaries), you can start a new x86_64 Gentoo install in a chroot, following the usual instructions. I've done similar before — effectively a reinstall, but while still running the old system. If you don't have a spare block device to install to, you can use a subdirectory and either boot with ...


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As far as I know it is not possible. Please remember that toolchain does not exist in vaccum and is interlinked. What might work is to build cross-compiler of new infrastructure but I really doubt it - the "atomicity" on update of glibc will break everything. I would advice backup & reinstall of system.



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