All the important bits are there - please test and review :)

Posted:   |   More posts about gsoc debian hurd   |  

Finally, more bootlog-pr0n:

start ext2fs: Hurd server bootstrap: ext2fs[device:hd0s1] exec init proc auth
INIT: version 2.88 booting
Using makefile-style concurrent boot in runlevel S.
Activating swap...done.
Checking root file system...fsck from util-linux 2.20.1
hd2 : tray open or drive not ready
hd2 : tray open or drive not ready
hd2 : tray open or drive not ready
hd2 : tray open or drive not ready
end_request: I/O error, dev 02:00, sector 0
/dev/hd0s1: clean, 44680/181056 files, 292234/723200 blocks
done.
Activating lvm and md swap...(default pager): Already paging to partition hd0s5!
done.
Checking file systems...fsck from util-linux 2.20.1
hd2 : tray open or drive not ready
hd2 : tray open or drive not ready
end_request: I/O error, dev 02:00, sector 0
done.
Cleaning up temporary files... /tmp.
Mounting local filesystems...done.
Activating swapfile swap...(default pager): Already paging to partition hd0s5!
done.
df: Warning: cannot read table of mounted file systems: No such file or directory
Cleaning up temporary files....
Configuring network interfaces...inetutils-ifconfig: invalid arguments
ifup: failed to open pid file /run/network/ifup-/dev/eth0.pid: No such file or directory
Internet Systems Consortium DHCP Client 4.2.2
Copyright 2004-2011 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

can't create /var/lib/dhcp/dhclient./dev/eth0.leases: No such file or directory
Listening on Socket//dev/eth0
Sending on   Socket//dev/eth0
DHCPDISCOVER on /dev/eth0 to 255.255.255.255 port 67 interval 8
DHCPREQUEST on /dev/eth0 to 255.255.255.255 port 67
DHCPOFFER from 10.0.2.2
DHCPACK from 10.0.2.2
can't create /var/lib/dhcp/dhclient./dev/eth0.leases: No such file or directory
bound to 10.0.2.15 -- renewal in 34744 seconds.
done.
Cleaning up temporary files....
Setting up X socket directories... /tmp/.X11-unix /tmp/.ICE-unix.
INIT: Entering runlevel: 2
Using makefile-style concurrent boot in runlevel 2.
Starting enhanced syslogd: rsyslogd.
Starting deferred execution scheduler: atd.
Starting periodic command scheduler: cron.
Starting system message bus: dbusFailed to set socket option"/var/run/dbus/system_bus_socket": Protocol not available.
Starting OpenBSD Secure Shell server: sshd.
unexpected ACK from keyboard


GNU 0.3 (debian) (console)

login: root
root@debian:~# shutdown -h now

Broadcast message from root@debian (console) (Fri Aug 16 20:02:47 2013):

The system is going down for system halt NOW!
INIT: Switching to runlevel: 0root@debian:~#
INIT: Sending processes the TERM signal
INIT: Sending processes the KILL signal
Using makefile-style concurrent boot in runlevel 0.
Stopping deferred execution scheduler: atd.
task c10f72a8 deallocating an invalid port 2098928, most probably a bug.
Asking all remaining processes to terminate...done.
All processes ended within 1 seconds...done.
Stopping enhanced syslogd: rsyslogd.
Deconfiguring network interfaces...ifdown: failed to open pid file /run/network/ifdown-/dev/eth0.pid: No such file or directory
Internet Systems Consortium DHCP Client 4.2.2
Copyright 2004-2011 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

can't create /var/lib/dhcp/dhclient./dev/eth0.leases: No such file or directory
Listening on Socket//dev/eth0
Sending on   Socket//dev/eth0
/bin/sh: 1: ifconfig: not found
done.
Deactivating swap...swapoff: /dev/hd0s5: 177152k swap space
done.
Unmounting weak filesystems...umount: /etc/mtab: Warning: duplicate entry for device /dev/hd0s1 (/dev/cons)
umount: could not find entry for: /dev/cons
done.
Unmounting local filesystems...done.
mount: cannot remount /: Device or resource busy
Will now halt.
init: notifying pfinet of shutdown...init: notifying tmpfs swap of shutdown...init: notifying tmpfs swap of shutdown...init: notifying tmpfs swap of shutdown...init: notifying ext2fs device:hd0s1 of shutdown...init: halting Mach (flags 0x8)...
In tight loop: hit ctl-alt-del to reboot

(You might note that df complains about not being able to read the mtab file. That is because it has been built with _PATH_MOUNTED being /var/run/mtab. This will correct itself when the coreutils package is being rebuilt against a patched libc.)

I spent my last two weeks with polishing my patch series, that meant a lot of package rebuilds and that means a lot of waiting (even more so on the Hurd, short version: fakeroot-hurd could be fast but is not yet working properly, fakeroot-tcp is slow) and thus some frustration ;)

Also I had to pay special attention so that the upgraded packages could be installed without accidentally breaking anything in the process. Making sysvinit pid 1 is surprisingly tricky in this regard since it breaks the ABI and requires a libc fix that also worked with the current Hurd servers.

Here are the patches:

So I had some spare time on my hand while waiting for numerous package rebuilds and I took this as an opportunity to read papers about Mach and to familiarize myself with mig, the Mach Interface Generator. While I have used it in the past, I had not yet looked at its implementation. And I had to patch the exec server, and there was both code implementing a questionable feature (on-demand unzipping of binaries) and code that was not even compiled (courtesy of the preprocessor) and had probably bit-rot by now. So I figured I could spend my time doing some cleanups:

I have rebuild all the necessary packages and uploaded them into an apt repository:

deb http://teythoon.cryptobitch.de/gsoc/heap/debian unstable main

Please use unstable for now. Also make sure that you have a recovery plan for your Debian/Hurd installation if anything goes wrong. For your convenience there's a seed tarball containing packages with the appropriate sources.list.d snippets and the repository key:

https://teythoon.cryptobitch.de/gsoc/heap/debian/seed.tar

If you want to switch to the new runsystem.sysv, do:

# update-alternatives --config runsystem

Whenever you switch runsystems, please use reboot-hurd to reboot the system. This is the most robust way.

Known issues:

  • procfs hardcodes the default kernel pid to 2. This breaks /proc/uptime and any program relying on it, most notably top and friends. Until this is properly fixed, you can do:

    # settrans -apfg /proc /hurd/procfs -c -k 3

  • The mtab translator should probably try to filter out non-filesystem translators. df complains loudly about /dev/cons for example.

Next week I will address the network related issues. By now they are the source of most of the error messages in the bootlog.

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