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mkimage and hasher can make use of qemu to run
non-native binaries while working on the chroots;
thanks kas@, manowar@ and sbolshakov@ for implementing
this functionality as well as providing nice examples
through mkimage-profiles-arm and mkimage-profile-armrootfs.
This required the architecture check to be added since baking
a tarball with "arm" as its specified arch and x86_64 inside
isn't particularly good thing to let slip through; however
the implementation is quite fragile, bugreports and patches
are seriously welcome.
NB: APTCONF evaluation order between lazy make and nimble shell
turned out to be quite a delicate issue in this particular case.
The only thing to be fixed was setarch(8) symlinks assumption
that is correct for x86 but not for ARM.
There's also some hasher(7) setup to be done:
mkdir -p ~/.hasher
echo >> ~/.hasher/config <<-EOF
def_target=arm
#cache_dir=$HOME/tmp # depends on RAM/storage configuration
EOF
...and of course apt(8) should be properly set up too.
An example PoC build on a CM-A510 board (tmpfs):
$ make BRANDING=altlinux-centaurus ve/bare.tar.gz
** ARCH: arm
18:10:45 initializing BUILDDIR: build/
18:10:45 preparing distro config: build/distcfg.mk
18:10:46 starting image build: tail -f build/build.log
18:14:49 done (4:02)
** image: $TMP/out/bare-20120706-arm.tar.gz [23M]
There's no need to repeat the typical openssh-* triade
all over the place; those who need server and client
are better off pulling in "openssh" pkglist, and those
needing a particular package should specify it.
Yes, mkimage-profiles is now able to build VM disk images.
So far the support is pretty basic:
- a single hard drive image with a single partition/FS
- only stock root password is configurable
- LILO is hardwired as a bootloader
The resulting images tend to boot under qemu/kvm though.
Please see doc/vm.txt for the warning regarding additional
privileges and setup required. This was started back in
February but I still hoped to avoid sudo/privileged helper
(and libguestfs is almost as undistributable as can be)...
Thanks:
- http://blog.quinthar.com/2008/07/building-1gb-bootable-qemu-image-using.html
- Alexey Morarash who reworked that as https://github.com/tuxofil/linsygen
- led@, legion@, vitty@, aen@ for providing advice and inspiration
It somehow managed to evade me that $(TMP) might be uninitialized;
definitely should be checked before stuffing into sed substitution
command.
NB: this could be done in pure make but my take was less readable.
Thanks shadowsbrother/gmail for hitting and reporting this.
Just like livecd-install, graphical installer KMS support
looks better as an optional part of install2 feature.
Of course it's optional only if the release manager is fine
with VESA drivers and not KMS-requiring intel/radeon/nouveau;
thanks led@ for a confirmation just in case.
This further refines the modular build by making
metadata being a clearly separated feature rather
than having to rely on runtime tests, and also by
moving the code which cares for kernel bits of base
installation (.base list) in a feature of its own.
There's more to it but let's get the ball rolling first.
It's hard to tell a successful build from a failed one
if downstream hides the exit code; it's useless to continue
a `for' loop if a pipe shoves that to a subshell; well it seems
that a bashism is worth a thousand quirks with extra fds here.
Minor regexp enhancements are also due.
reports.mk made a bit more resilient/prudent either.
Sometimes it's desirable to provide the kernel supporting
maximal amount of RAM on the system; bad news is that x86
has a kludge named PAE, good news is that x86_64 doesn't
need it at all; but now we must be able to choose between
those.
BIGRAM will hold the flavour needed.
Initial SPICE support has been added for kvm/libvirt installation
and boot-up using qxl and spice by default as proposed by shaba@.
VirtualBox part is shifted a level deeper correspondingly
but otherwise stays the same.
A pretty common issue breaking the image build is inter-package
file conflict resulting in hsh-install failure down there.
Let's bring that back to attention conveniently.
There is at least one known deficiency for mkimage-profiles:
build.log will be truncated if verbose mode is enabled and
hasher version is lower than 1.3.22.
The check is done here since it's where the logging is arranged,
and doing it in image.in/Makefile would result in the warning
about log-truncating software being truncated by the said software.
Thanks Max Kosmach for reporting this inobviousity.
The output was still somewhat ragged in 80x24 terminal window
with fmt(1) which wasn't anticipating the word length difference
subsequent column(1) would have to cope with later on.
Thanks Loic Cattani for his shell columnizer implementation:
https://github.com/Arko/Columnize
As was noted by Alexey Shabalin in libosinfo context,
current ALT Linux images tend to lack ISO9660 metadata
-- which they did have back in the day of Master 2.4.
Please note that the data collection occurs this way
due to mkimage's config.mk resetting the values to be
empty; this was worked around by using another config
file, $(BUILDDIR)lib/iso.mk, and including it later
but that would require a separate target with per-target
CONFIG variable which isn't elegant at all given the need
to actually build up the metadata set.
So the variables were changed (to be more readable anyways)
and then proxied back to BOOT_*. This might be cleaned up
some day after the inclusion order is tweaked or mkimage
defaults get set-if-unset-yet (?=).
openssh-server is in need indeed on almost any server instance;
thanks Aleksey Cheusov for reporting the shortage.
This might be amended in the future but is reasonable right now.
As noted in doc/assumptions.txt, the SHELL based target tracing
only works for rules with recipes, even empty but present ones.
The simplest thing to do is hooking "; @:" onto the rule's tail
(one-liner with a non-printing shell builting "true" command).
The purpose is being able to examine particular target interdependency
graph for a given image having been configured to avoid convoluted
dependencies (loops in particular).
The implementation is based on SHELL hook hint by John Graham-Cumming:
http://cmcrossroads.com/ask-mr-make/6535-tracing-rule-execution-in-gnu-make
As was duly noted by Leo-sp50, both server.mk and desktop.mk
duplicate a few bits layered over bare distro/installer which
happened to be both a dependency (thus should reduce redundancy)
and a "real distro" target (well, it doesn't just work yet, need
to provide networking and sources.list in install2 by hand).
Fixed by moving a "node" to distro/.installer along with typical
additions and leaving a bare installer as is by now; there's a
need to get it working at least for DHCP/ftp.altlinux.org case.
A minimal chroot supporting extension via apt-get;
vitals if built on Sisyphus as of Jan 16, 2012:
i586: 13M tar.xz, 58M chroot (33M w/o /usr/share/{doc,locale,man})
x86_64: 14M tar.xz, 60M chroot (35M w/o /usr/share/{doc,locale,man})
Trivial fixups (extra checks) added to two script hooks.
As was found out by Vladimir Karpinsky (thanks for patience!),
the autochosen directory might still have too restrictive mount
options -- nodev and/or noexec. Hopefully the diags are a bit
better and faster by now.
It was briefly mentioned in QUICKSTART but somehow managed
to evade the commandlines provided. And while at it, let's
make errors like this more explicit to avoid extra lookups.
Oh, and fix QUICKSTART so that readers miss the hassle. :)
Thanks Vladimir Karpinsky for pointing this problem out.
doc/variables.txt was missing the already-existing BUILDLOG
variable description, and ARCHES got added during multi-target
toplevel rewrite. Other minor fixes come as appropriate.
The former toplevel Makefile is now toplevel main.mk;
this change allows for multi-target, multi-arch processing
in the current toplevel Makefile.
As the "build" symlink semantics change quite considerably
when one is doing bulk builds (several pruned builddirs might
be useful for comparison), BUILDDIR is now much more likely
to be recreated: the cases when it will persist are when it's
either a single-image build or when the prefix hasn't changed.
There are some more or less subtle bugfixes and enhancements
all over the map as well.
Done within 20111230..20120102 timeframe, actually...
First, let's not do rsync --delete on an unverified target dir
again: the lesson was learned during a subway hacking session
and I must say that SSDs are frightening fast (even if it was
more than a second to realize what happens and terminate the
extermination before it got /home, thanks xterm).
Second, let's use a variable for common name and make's own
realpath function instead of external binary.
Initial openSUSE package base taming effort has shown that
relatively few things should be fixed; subst has been generalized
as -i option to sed(1) since its introduction, so let's just fix it.
The idea is to check:
- the reachability of every target
used to build the image in question;
- the availability of all the package lists
and subsequently packages for that image;
- the lack of "dangling" intermediate targets,
features, pkglists, hooks etc.
So far only the first step is implemented --
it's easy and somewhat helpful already for
make CHECK=1 all
distro/.base target used to pull in localboot syslinux config
snippet which might be too early for some of the further distros;
it's a quite fragile equilibrium which was shifted a bit by imz@
(see #26606). Feel free to reopen the discussion though, things
might be tweaked so that localboot might be desirable on almost
every image even if with lower priority...
As was (quite reasonably) asked by someone and me too,
why should a successful build yield a *red* line
(a grep's default)?
So now it's new and improved, 25% free and so forth:
with a successful build you get a green line, while
errors from a broke one result in red ones.
Clinically tested in both b/w and w/b colour schemes;
in case you're not satisfied, please return original
ANSI_OK and ANSI_FAIL values to the colour dealer
and pass your favourite ones instead.
The features might get copy-pasted (or even copied-and-pruned)
when initialized; there's an unneccessary duplication of the
function name in the line adding it to FEATURES list, thus
prone to being forgotten and causing some havoc later on.
It was wrong in the first place but tackling this with some
double-colon rules ran into terminality issues, and further
tortures were considered unneccessary.
The current solution isn't perfect (no completely transparent
function name registration upon corresponding target being called)
but at least it is an improvement...
CLEAN is so useful and fiddling with .work chroots does
demand knowledge (hsh-shell is handy btw); so unless we
really get our hands dirty, let's spare ours preciouss
tmpfss.
- toplevel README received some long-needed refactoring
+ lowlevel detail moved, well, to lowlevel READMEs
- reflected more thoroughly that m-p is not about distros anymore
- dropped features.in/00example/README.en: it's already out-of-date
a bit, and there's no perceived need in thorough English docs so far
- wiki article got split into parts and somewhat rewritten, links updated
- mv doc/{CodingStyle,style.txt}
Essentially some more polishing:
- image path extracted from downstream build log;
- extended error/warning regexp a bit so those with
color grep options get even prettier output.
Notes:
- "1024" a magic number (briefly explained when introduced)
moved to a sort of variable;
- "100 lines" for tail(1) is a rule-of-thumb taking into account
typical amount of hasher/mkimage exhaust given GLOBAL_VERBOSE.
Preferences might be somewhat interesting too: while the official
ones shouldn't influence the build result at all, there's no whitelist
so all kinds of weirdness can be stuffed into local config in principle.
That should be diagnosable at least.
This one regulates the build wrapper: if the value is non-empty
then nice(1) and ionice(1) will be attempted so that the build
behaves better in regard to other tasks running on the system.
A few doc/variables.txt updates along the way.
Thanks torabora@ for yet again seemingly obvious feature request
which strangely managed to evade implementation before.
On an afterthought, mass builds would suggest too much coffee
instead of a progress indicator -- so implemented the latter.
NB: the actual downstream-make-calling rule would expand the "naive"
$(shell date) too early: the rule is evaluated before starting its
execution, and as it's the time consuming one the shell evaluation
was in need, not make's. The result is less generally available
(needs to be double quoted and won't work inside e.g. awk programs)
but way more precise.
If you make distro/live-builder.iso, the result is an image
containing almost everything (short of actual full enough
repository) to rebuild itself. It will attempt to configure
eth0 with DHCP and reach http://ftp.altlinux.org for packages.
RAM requirements start with 2Gb, self-build is accomplished
on a 4Gb host with "make CLEAN=1 distro/live-builder.iso".
Packages required for "make distro/syslinux.iso" get included.
(some due fixups all over the place too)
Implemented opportunistic alarm support as proposed by torabora;
the actual result depends on readline and/or terminal settings
(read up on "visual bell" vs "audible bell" in case it's wrong).
TODO: this ought to be shifted downstream when proper logging
framework is there.
This was asked for by Leo-sp50 and torabora, and seems quite reasonable:
let's provide means to keep at least some distribution configurations
a bit apart, so that these can be considered more standalone in terms
of hard warranted functionality but at the same time enjoying the common
infrastructure.
Considering lib/distro.mk: it's now experimentally pulled apart so that
parallel development of different distro families can go on without
major merge hassles. *Please* don't abuse with massive copy-paste.
And before you ask: this might get extended to allow for "private"
out-of-tree configurations being included since apparently there
are goals with no meaning outside of some very particular context...
but otherwise I'd like to encourage getting reusable bits in-tree.
This is quite a large-scale change since mkimage-profiles got used to
baking distributions over the last year, and virtual environments are
quite different, so e.g. image.in/Makefile had to be split in two with
the main part of it moved into features.in/iso/lib/.
Short overview:
- features.in/Makefile: lib/ support
(supporting VE images requires dynamic modifications
to image.in/Makefile before starting the build;
the most natural way to achieve that seems to use
features mechanism along with makefile include dir)
- packaging format related part moved into features.in/pack
(should be better prepared for diversity either)
- features.in/iso renamed to features.in/build-distro
- features.in/ve renamed to features.in/build-ve
+ NB: these could not be merged as e.g. features.in/build
due to completely different script hooks
- lib/image.mk renamed to lib/build.mk
- image, config, log postprocessing moved downstream
- added a sort of a topping in the form of lib/sugar.mk
- assorted style fixups (like ifeq usage)
- clean.mk: reliability fix (the problem was observed by Oleg Ivanov
and me too but finally it did get the attention quantum)
- reviewed, updated and extended docs
+ QUICKSTART: should be[come] a step-by-step guide
(thanks Leo-sp50 for prodiving feedback)
