apt-get freezes under lenny domU on lenny dom0

I had this strange thing ... apt-get freezing when using it inside domU ... no key strokes nothing ... although the machine still runs fine ! even if i run it inside 'screen', disconnect and reconnect ... no good, i need to kill apt-get and retry with apt-get -f install and stuff.

Well, i got it solved, i was trying to fix something else , which is an error message saying:


Time went backwards


Following the instructions here:

http://wiki.debian.org/Xen#A.27clocksource.2BAC8-0.3ATimewentbackwards.27

got me going!

Setting up iSCSI target on Debian etch

Todays adventure is setting up iSCSI target on debian !

First off, a normal installation of debian etch, using the defaults and nothing particularly special, afterwards, i search google for a debian package of iscsi target, and well, i find debian provides one for testing, one for unstable and one in backports :D yay, i quickly add the debian backports repository, and try to install it by doing apt-get install iscsitarget, and i get the following


Setting up iscsitarget (0.4.15+svn145-1~bpo40+1) ...
Starting iSCSI enterprise target service: FATAL: Module iscsi_trgt not found.
netlink fd: Connection refused
failed.


i looked this file using apt-file and googled around a little, but found nothing particularly helpful, but i noticed that there is a package called iscsitarget-source, which is not usual unless the source is needed to install a package, other wise source is usually provided seperately, so i apt-got it and there you have it in /usr/src/iscsitarget.tar.bz2, i extract the archive. now what, i see no doc or README in that archive, i look back at the packs installed, and notice that debian got module-assistant as a dependency for iscsitarget-source ... sure thing, thats the way to go, so i run module-assistant, try to select iscsitarget to build, and then fall back to the main menu and do "prepare" which gets a bunch of new packages and installs them.

Back to modules-assistant ... select ... iscsitarget ... ok ... build .... build fails!! :( i look at the errors, the first one i can see was:

CC [M] /usr/src/modules/iscsitarget/kernel/tio.o
In file included from /usr/src/modules/iscsitarget/kernel/tio.c:7:
/usr/src/modules/iscsitarget/kernel/iscsi.h:236: error: field ‘rx_hash’ has incomplete type

nothing before seems to be relevent to the error or triggering it, so i started asking around, and there you go , #debian-backports on oftc irc network guys tell me that it needs a newer kernel, and so does /usr/share/doc/iscsitarget-source/README.Debian which i didnt read before, so i need to install a newer kernel, which i still find in etch-backports. so i lookup which kernels are available and i do apt-get install linux-image-2.6.22-4-686 and linux-headers-2.6.22-4-686 and reboot.

now back to module-assistant, select, build, install,exit ... /etc/init.d/iscsitarget start ... all starts successfully :) now i can go ahead and play with the /etc/ietd.conf file (iscsi enterprise target daemon conf file).

Note:I wonder ... why would iSCSI target have anything in the kernel space ?