Warnings fixed:
* SC2086: Double quote to prevent globbing and word splitting.
* SC2006: Use $(...) notation instead of legacy backticked `...`
* SC2039: In POSIX sh, echo flags are undefined
* SC2209: Use var=$(command) to assign output (or quote to assign string)
* SC2164: Use 'cd ... || exit' or 'cd ... || return' in case cd fails
* SC2166: Prefer [ p ] && [ q ] as [ p -a q ] is not well defined.
* SC2034: i appears unused. Verify use (or export if used externally)
* SC2046: Quote this to prevent word splitting.
* SC2236: Use -z instead of ! -n.
There are still a lot of warnings in Kernel/run about:
- SC2086: Double quote to prevent globbing and word splitting.
However, splitting on space is intentional in this case, and not trivial to
change. Therefore ignore the warning for now - but we should fix this in
the future.
Ports/.port_include.sh, Toolchain/BuildIt.sh, Toolchain/UseIt.sh
have been left largely untouched due to use of Bash-exclusive
functions and variables such as $BASH_SOURCE, pushd and popd.
This removes grub and all the loopback device business from the default
build process. Running grub takes about a second, and it turns out it's
inconsistently packaged in different distributions, which has led to
at least one confusing issue so far (grub-install vs grub2-install).
Removing it from the basic path will make it easier for people to try
Serenity out.
There are now two scripts that can be used to build a disk image:
1. `build-image-grub.sh` - this will build an image suitable for writing
to the IDE hard drive of a physical machine, complete with a partition
table and bootloader. This can be run in qemu with the `qgrub` target
for the `run` script.
2. `build-image-qemu.sh` - this is a simpler script which creates a bare
filesystem image rather than a full MBR disk.
Both of these call out to `build-root-filesystem.sh` to do most of the
work setting up... the root filesystem.
For completeness' sake, I've retained the `sync.sh` script as a simple
forwarding to `build-image-qemu.sh`.
This relies on the functionality from #194 and #195. #195 allows us to
use `/dev/hda` as the root device when nothing else is specified, and #194
works around a strange feature of qemu that appends a space to the kernel
command line.
