[[!meta copyright="Copyright © 2010 Free Software Foundation, Inc."]] [[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable id="license" text="Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled [[GNU Free Documentation License|/fdl]]."]]"""]] ## Hurd Debian-Installer My [proposal](http://wiki.debian.org/SummerOfCode2010/HurdDebianInstaller/JeremieKoenig) to work on porting d-i on Hurd as a [Google Summer of Code](http://code.google.com/soc/) student has been accepted by the Debian project. I will be keeping track of my progress on this page. ### Links * [Modified packages](http://jk.fr.eu.org/debian/unstable) * [Latest images](http://jk.fr.eu.org/debian/hurd-installer) * [Debian bugs](http://bugs.debian.org/cgi-bin/pkgreport.cgi?users=jk@jk.fr.eu.org&tag=gsoc2010) * [BusyBox port](http://lists.debian.org/debian-bsd/2010/05/msg00048.html) * [GNU Mach initrd](http://lists.gnu.org/archive/html/bug-hurd/2010-06/msg00047.html) ### Roadmap * **mach**: initrd support * (./) preliminary patch posted and self-built (2010-06-12) * adjustments will be needed (postponed) * consider the alternatives discussed on bug-hurd (postponed) * **glibc**: fix `mkdir("/")` which returned `EINVAL` * (./) eglibc 2.11.2-1 includes a quick fix by youpi (2010-06-15) * (./) more complete patch posted to bug-hurd, since other calls return incorrect errors under some circumstances (2010-06-16) * more work on it will be needed to make it fix the whole thing (postponed) * (./) **partman** (2010-06-23) * (./) add hurd-i386 to `partman-partitioning/lib/disk-label.sh` (2010-06-16, commited by youpi on 2010-06-23) * (./) short-circuit `partman-basicfilesystems/init.d/kernelmodules_basicfilesystems` (2010-06-16) * (./) partman-auto recipes: make the default filesystem os-dependent when it has not been preseeded (ie. the *seen* flag is clear) * (./) force 4k blocks and 128 bytes inodes * (./) submit patches to bugs.debian.org ([[!debbug 586870]] and [[!debbug 586871]]) * (./) rebuild with responsible version numbers and upload to my repository * (./) **libparted** (2010-06-23) * (./) fix device paths ([[!debbug 586696]]) * (./) fix crash on exit for part:* stores ([[!debbug 586682]]) * **hurd-udeb** (2010-06-23) * (./) rebuild with the hack suggested by youpi for qemu network configuration * (./) fix mount to accept `-o defaults` * cleanup, ask youpi to commit * reloading the partition table (2010-06-25) * User-space part stores * (./) hurd-udeb now uses `part:N:device:X` for partition devices (2010-06-23) * (./) it also provides /lib/partman/commit.d/??hurd\_reloadpart, which basically does `settrans -ag /dev/[hs]d*`. (2010-06-24) * Kernel-based partition devices * (./) Mach's drivers from Linux support reloading partitions. With help from youpi this has been made available through a device\_set\_status() call. * (./) make libparted use it * Reminder: I should file a bug against libparted with the patch sometime. * (./) The `/servers/exec` issue (2010-06-26) * Due to /servers being inexistant, the bootstrap ext2fs could not register the initial exec server, meaning that non-bootstrap filesystems used a different one (started from the passive translator), which for some reason died on shell scripts, making them stall. * Adding the `/servers` directory to hurd-udeb fixed it, as well as the /hurd/proc issue (failed to be run by init the first time around). * Reminder: report the non-bootstrap exec servers failure on scripts. * (./) **base-installer**: (2010-06-26) * Work around non-existant /proc/mounts. * Firmlink /servers into /target after debootstrap to make the network available. * (./) **grub-installer** * (./) add hurd support (2010-06-27) * /!\ grub-legacy still needs to be tested * submit changes as a Debian bug **Milestone (2010-06-28): installer kindof works, with documented manual intervention required** * (./) Sort out the situation with dev node creation (2010-07-07): * Devices and servers used to be set up by debootstrap; the hurd package would add some missing nodes. * New strategy implemented in hurd and debootstrap: * debootstrap uses active firmlinks into the host system for the target system's /dev and /servers. * the hurd package now include a `setup-translators` script, which is used to register the passive translators by the installer's `/libexec/runsystem` and hurd's postinst script. * **busybox**: submit upstream and to [[!debbug 323670]] (waiting for upstream to review) * (./) I have mentioned my work on the upstream mailing list, * (./) merge the recent changes from upstream, notably to the build system. (2010-06-23) * (./) ask upstream for review and merge (2010-06-25) * (./) sent as patches as requested (2010-07-08) * backport any additional changes onto the debian branch * hijack [[!debbug 323670]] and submit my patches * **aptitude**: * Currently broken on hurd-i386: [[!debpkg gtest]] fails to build because of a segfault in one of the test cases, [[!debpkg google-mock]] and hence [[!debpkg aptitude]] are missing it as a build-dep. The older package is not installable anymore because it's linked against an older version of libept, which has been removed. * (./) I bypassed the tests and uploaded the 3 packages to my repository (2010-07-08) * The segfault will have to be sorted out. (postponed) * (./) "Fix" the swap situation. (2010-07-08) * The device_close() libstore patch had the unfortunate effect of making swapon fail, since the device it activates has to be kept open. * add options for MAKEDEV and setup-devices to use the libparted stores * disable youpi's patch * make partman-basicfilesystems re-create the device as a kernel partition, which is needed for swapon * (./) netcfg-static: port to hurd (2010-07-09) * There was some amount of hurd support already (namely, activating the interface by replacing the socket translator) * However, this code started an active translator with di_exec_shell_log("settrans -a ...), which stalled as a consequence of it capturing libdi's pipe as its standard output. * Network devices must be probed by trying to open Mach devices with predetermined names (currently eth%d, wl%d), because getifaddrs() does not seem to work on Hurd. * /!\ netcfg, and configuring the installed system, postponed. * **procps** 3.2.7-11 (current hurd-i386 version) has [[!debbug 546888]] * (./) Submit [[!debbug 588677]] and upload the result to my repository. (2010-07-11) * (./) Set up a Debian mirror with modified packages for installation * the [mirror](http://jk.fr.eu.org/debian/hurd-install/mirror) is now up and running (2010-07-06) * hacked the image build script to include its public key in debian-archive-keyring at image build time (2010-07-08) * Apparently debootstrap does not handle multiple versions very well. Fix by using dpkg-scan{package,sources} rather than apt-ftparchive to create index files. (2010-07-10) * Use the override files from ftp.debian.org, to avoid debootstrap grabbing inappropriate packages. * Changed them to make [[!debpkg ifupdown]], [[!debpkg dhcp3-client]] and [[!debpkg dhcp3-client]] priority extra, because they're uninstallable at the moment. (2010-07-12) * (./) Put together a "jk-archive-keyring" package, so that the mirror is authenticated in the target system as well. (2010-07-12) * (./) Fix grub for user-space partitions (2010-07-16) * grub-probe detects the whole device rather than the partition as the device behind /boot/grub. Consequently, grub-install fails. * One approach would be to replace /dev/hd* by kernel devices for file systems as well as for swap partitions. > {X} this makes the installer crash, > possibly due to cache coherency issue between hdX and hdXsY. * (./) GRUB2 kern/emu/getroot.c [patched](http://lists.gnu.org/archive/html/bug-hurd/2010-07/msg00059.html) to support part stores. * (./) Fix finish-install to skip `finish-install.d/90console` on Hurd (2010-07-17) * debootstrap: Don't use find to firmlink devices into /target, to avoid starting many translators at once (2010-07-17, to be tested soon) * **d-i/installer/build**: (expected soon) * publish the patch I use * sort out the changes suitable for inclusion and ask youpi and/or debian-boot@l.d.o to commit them **Milestone (expected 2010-07-18): installer works but it's still somewhat ugly and broken** * call for testing and fix the bugs * See if it would be possible to avoid accessing devices when firmlinking them into the target system. * Who does that? * find should prune them as instructed, and avoid a stat/readdir as a result * showtrans shouldn't access the translator itself * firmlink should access the target only when it is used * In the same vein, permissions on underlying nodes are probably broken when created by hurd through `MAKEDEV -k`, and doing the actual chmod/chown accesses the device * Maybe settrans could be made to accept -o/--owner and -p/--perm, to set the permissions for the underlying node? * Silence the "no kernel" warning somehow. * Try to resolve problems with udebs which are uninstallable on hurd-i386, such as installation-locale and partman-whatever. * Provide `/proc/cmdline -> 2/cmdline`, or something. * Prepare a NMU for genext2fs (which is orphaned), and ask youpi to sponsor the upload. * **busybox**: port * fix stty/stat/ipcs on kFreeBSD, * generally port more stuff, * *ip* is needed (maybe) for network configuration, * *mount*, *swaponoff* can be from hurd-udeb for now, though the kFreeBSD people will need them * **partman**: further adjustments * hide irrelevant mount options? (sync, relatime) * Network configuration on the installed system. This includes porting ifupdown and isc-dhcp-client, which are currently uninstallable on hurd-i386. * Also, better DHCP support during and after installation * improve the [initrd situation](FIXME: link to bug-hurd post): ajust the ramdisk support in Mach, use tmpfs if possible. * mklibs{,-copy}: test library reduction, make it copy the ld.so -> ld.so.1 symlink. * hurd console fonts **Milestone (expected 2010-07-19): it works great and it's beautiful** * test, fix, document * support more types of installation images * give a shot at the graphical installer if time permits * integrate wireless drivers with netcfg * see how [[zhengda]]'s work on DDE could be integrated * etc.. ### Mostly done #### Week 1 (2010-05-24) * genext2fs: patches submitted, [[!debbug 562999]] which add support for all block sizes and choosing them at runtime. * busybox: started porting the upstream and Debian package to Hurd and FreeBSD * rebuilding hurd-udeb from the pkg-hurd version and adding a ld.so link to the initrd fixes the exec translator crashing on startup. (BTW would there be a mean to detect this from the libdiskfs bootstrap code and report it ?) #### Week 2 (2010-05-31 to 2010-06-06) * *busybox*: patches [posted](http://lists.debian.org/debian-bsd/2010/05/msg00048.html). * *libdebian-installer4*: [[!debbug 584538]] * started working on mach initrd support * the installation images could boot into the main-menu with the following changes: * rebuild hurd-udeb from with the latest pkg-hurd patches * use busybox from my osports-debian branch (see link above) * tweak the d-i image build scripts * the symlink /lib/ld.so -> ld.so.1 needs to be created somehow (youpi mentionned it being the job of libc0.3-udeb I think) * fix the poll() issue in libdebian-installer (patch to be submitted soon), also there is some hurd doxygen short-circuiting stuff there which does not apply any more and prevents is to build. * feed the initrd as a hard drive in qemu (with some more space added to avoid it from becoming full)