Can you please post the full error messages that appear? Have you tried recreating your initcpio using mkinitcpio -p kernel26?

My posting is mainly in regard to the fact that /sbin/lilo -v was successful and I still get kernel panic....This is supposed to be impossible!!!

I have not tried any messing with mkinitcpio since I should have the same as was present on the previous upgrade....if that statement is not true, the upgrade has to forewarn users with lilo that such is required...I read the info available and found nothing to prevent lilo from handling the upgrade as has been the case for years.

I will post the error message at a later time.

Error messages:

/bin/mknod "/dev/root b 3 3
Modprobe: FATAL: Could not load /lib/modules/2.6.25-ARCH/modules.dep no such directory

.. Intramfs completed- Control passing to kinit

IP Config: no devices to configure

/init|: Cannot open /dev/root no such device or address

Modprobe: FATAL: Could not load /lib/modules/2.6.25-ARCH/modules.dep : no such directory

Kinit: Unable to mount root fs on device (3,3)

Kernel Panic- not syncing : Attempted to kill init!

My system uses HDxx parameters for all HDD devices.

Can you attach /boot/kernel26.img please?

The relevant part of /var/log/pacman.log would be good as well.

/var/log/pacman.log:

[2008-05-17 19:33] installed espeak (1.37-1)
[2008-06-02 09:08] synchronizing package lists
[2008-06-02 09:09] starting full system upgrade
[2008-06-02 09:42] upgraded aufs-utils (20080301-1 -> 20080527-1)
[2008-06-02 09:42] upgraded bluez-libs (3.30-1 -> 3.31-1)
[2008-06-02 09:42] upgraded bluez-utils (3.30-1 -> 3.31-1)
[2008-06-02 09:42] upgraded bzip2 (1.0.4-3 -> 1.0.5-2)
[2008-06-02 09:42]
[2008-06-02 09:42] NOTE for drcaw:
[2008-06-02 09:42] ----
[2008-06-02 09:42] ==> dcraw provides the simple commandline tools for raw conversion. If you
[2008-06-02 09:42] ==> are looking for a more sophisticated way consider gimp-ufraw, which
[2008-06-02 09:42] ==> provides a gimp-plugin and a standalone application that can even convert
[2008-06-02 09:42] ==> to 16-bit tiff files (which you can use in cinepaint eg.) So please do a
[2008-06-02 09:42] ==> 'pacman -S gimp-ufraw' to get it.
[2008-06-02 09:42]
[2008-06-02 09:42] upgraded dcraw (1.399-1 -> 1.403-1)
[2008-06-02 09:42] upgraded devede (3.7-1 -> 3.7-2)
[2008-06-02 09:42]
[2008-06-02 09:42] --> gimp has built-in cups print support now. for more sophisticated printing,
[2008-06-02 09:42] --> please install gutenprint.
[2008-06-02 09:42]
[2008-06-02 09:42] update desktop mime database...
[2008-06-02 09:42] upgraded gimp (2.4.5-1 -> 2.4.6-1)
[2008-06-02 09:42] upgraded gnutls (2.0.4-1 -> 2.0.4-2)
[2008-06-02 09:42] upgraded gparted (0.3.5-1 -> 0.3.7-1)
[2008-06-02 09:42] upgraded gtkspell (2.0.11-2 -> 2.0.13-1)
[2008-06-02 09:42] upgraded hal-info (0.20080317-1 -> 0.20080508-1)
[2008-06-02 09:42] upgraded pm-utils (1.1.0-1 -> 1.1.2-1)
[2008-06-02 09:42] upgraded hal (0.5.11rc2-2 -> 0.5.11-1)
[2008-06-02 09:42] upgraded id3lib (3.8.3-9 -> 3.8.3-10)
[2008-06-02 09:42] upgraded libtool (2.2-2 -> 2.2.4-1)
[2008-06-02 09:42] upgraded imagemagick (6.4.1.0-1 -> 6.4.1.3-1)
[2008-06-02 09:42] warning: extracting /etc/rc.conf as /etc/rc.conf.pacnew
[2008-06-02 09:42] warning: extracting /etc/rc.local as /etc/rc.local.pacnew
[2008-06-02 09:42] -----------------------------------------------------------
[2008-06-02 09:42] IMPORTANT NOTICE FOR ENCRYPTION USERS
[2008-06-02 09:42]
[2008-06-02 09:42] The "password" column in /etc/crypttab has now
[2008-06-02 09:42] two special keywords:
[2008-06-02 09:42] - ASK ask for a passphrase on boot
[2008-06-02 09:42] - SWAP use a random key and create swapspace
[2008-06-02 09:42] This is particularly dangerous, as the
[2008-06-02 09:42] volume in question will be overwritten
[2008-06-02 09:42] If you use SWAP as your passphrase (which
[2008-06-02 09:42] is insecure anyway), be sure to remove it
[2008-06-02 09:42] from /etc/crypttab to avoid dataloss!
[2008-06-02 09:42]
[2008-06-02 09:42] See /etc/crypttab(.pacnew) for more information.
[2008-06-02 09:42] -----------------------------------------------------------
[2008-06-02 09:42] Attention netcfg users: netcfg is no longer included as
[2008-06-02 09:42] part of the initscripts package.
[2008-06-02 09:42] Be aware that rc.conf's NET_PROFILES has changed to
[2008-06-02 09:42] NETWORKS, and that netcfg must be installed separately.
[2008-06-02 09:42] For more info, see the netcfg man page.
[2008-06-02 09:42] -----------------------------------------------------------
[2008-06-02 09:42] upgraded initscripts (2008.03-4 -> 2008.05-1)
[2008-06-02 09:42] upgraded inputproto (1.4.2.1-1 -> 1.4.3-1)
[2008-06-02 09:42] upgraded isomaster (1.3-1 -> 1.3.1-1)
[2008-06-02 09:42] warning: /opt/kde/share/config/kdm/kdmrc installed as /opt/kde/share/config/kdm/kdmrc.pacnew
[2008-06-02 09:42] For more info on KDE please have a look at:
[2008-06-02 09:42] 'http://wiki.archlinux.org/index.php/KDE'
[2008-06-02 09:42] upgraded kde-common (3.5.9-1 -> 3.5.9-2)
[2008-06-02 09:42] upgraded libldap (2.3.39-2 -> 2.3.40-1)
[2008-06-02 09:42] upgraded libx11 (1.1.3-6 -> 1.1.4-2)
[2008-06-02 09:42] upgraded libxkbfile (1.0.4-1 -> 1.0.5-1)
[2008-06-02 09:42] upgraded libxss (1.1.1-1 -> 1.1.3-1)
[2008-06-02 09:42] >>> to control the lm_sensors daemon type
[2008-06-02 09:42] >>> "/etc/rc.d/sensors start|stop|restart"
[2008-06-02 09:42] >>> --------------------------------------
[2008-06-02 09:42] >>> before you can use the fancontrol daemon
[2008-06-02 09:42] >>> first create a fancontrol config file, use "pwmconfig"
[2008-06-02 09:42] >>> then type "/etc/rc.d/fancontrol start|stop|restart"
[2008-06-02 09:42] >>> --------------------------------------
[2008-06-02 09:42] >>> to decode memory SPD timings modprobe eeprom module
[2008-06-02 09:42] >>> and get this perl script from
[2008-06-02 09:42] >>> "http://www.lm-sensors.org/browser/lm-sensors/trunk/prog/eeprom/decode-dimms.pl"
[2008-06-02 09:42] upgraded lm_sensors (3.0.1-1 -> 3.0.2-1)
[2008-06-02 09:43] upgraded kdebase (3.5.9-1 -> 3.5.9-2)
[2008-06-02 09:43] upgraded mkinitcpio (0.5.18.1-1 -> 0.5.19-1)
[2008-06-02 09:43] >>>
[2008-06-02 09:43] >>> If you use the LILO bootloader, you should run 'lilo' before rebooting.
[2008-06-02 09:43] >>>
[2008-06-02 09:43] >>> Updating module dependencies. Please wait ...
[2008-06-02 09:43] >>> MKINITCPIO SETUP
[2008-06-02 09:43] >>> ----------------
[2008-06-02 09:43] >>> If you use LVM2, Encrypted root or software RAID,
[2008-06-02 09:43] >>> Ensure you enable support in /etc/mkinitcpio.conf .
[2008-06-02 09:43] >>> More information about mkinitcpio setup can be found here:
[2008-06-02 09:43] >>> http://wiki.archlinux.org/index.php/Mkinitcpio
[2008-06-02 09:43]
[2008-06-02 09:43] >>> Generating initial ramdisk, using mkinitcpio. Please wait...
[2008-06-02 09:43] ==> Building image "default"
[2008-06-02 09:43] ==> Running command: /sbin/mkinitcpio -k 2.6.25-ARCH -c /etc/mkinitcpio.conf -g /boot/kernel26.img
[2008-06-02 09:43] :: Begin build
[2008-06-02 09:43] :: Parsing hook [base]
[2008-06-02 09:43] :: Parsing hook [udev]
[2008-06-02 09:43] :: Parsing hook [autodetect]
[2008-06-02 09:44] :: Parsing hook [ide]
[2008-06-02 09:44] :: Parsing hook [scsi]
[2008-06-02 09:44] :: Parsing hook [sata]
[2008-06-02 09:44] ==> FAIL
[2008-06-02 09:44] ==> Building image "fallback"
[2008-06-02 09:44] ==> Running command: /sbin/mkinitcpio -k 2.6.25-ARCH -c /etc/mkinitcpio.conf -g /boot/kernel26-fallback.img -S autodetect
[2008-06-02 09:44] :: Begin build
[2008-06-02 09:44] :: Parsing hook [base]
[2008-06-02 09:44] :: Parsing hook [udev]
[2008-06-02 09:44] :: Parsing hook [ide]
[2008-06-02 09:44] :: Parsing hook [scsi]
[2008-06-02 09:44] :: Parsing hook [sata]
[2008-06-02 09:44] ==> FAIL
[2008-06-02 09:44] upgraded kernel26 (2.6.24.4-1 -> 2.6.25.4-1)
[2008-06-02 09:44] upgraded libgl (7.0.3rc2-1 -> 7.0.3-2)
[2008-06-02 09:44] upgraded libmysqlclient (5.0.51-2 -> 5.0.60-1)
[2008-06-02 09:44] upgraded libxinerama (1.0.2-1 -> 1.0.3-1)
[2008-06-02 09:44] upgraded libxslt (1.1.23-1 -> 1.1.24-1)
[2008-06-02 09:44] upgraded libxv (1.0.3-1 -> 1.0.4-1)
[2008-06-02 09:44] upgraded live-media (2008.01.19-1 -> 2008.05.12-1)
[2008-06-02 09:44] upgraded lxsplit (0.1.1-1 -> 0.2.2-1)
[2008-06-02 09:44] upgraded mesa (7.0.3rc2-1 -> 7.0.3-2)
[2008-06-02 09:44] upgraded ntfs-3g (1.2310-1 -> 1.2531-1)
[2008-06-02 09:44] Place menu.xml and rc.xml in ~/.config/openbox
[2008-06-02 09:44] They can both be found in /etc/xdg/openbox
[2008-06-02 09:44] upgraded openbox (3.4.6.1-2 -> 3.4.7.2-1)
[2008-06-02 09:44] upgraded openldap (2.3.39-1 -> 2.3.40-1)
[2008-06-02 09:44] upgraded pcre (7.6-3 -> 7.7-1)
[2008-06-02 09:44] upgraded postgresql-libs (8.2.6-1 -> 8.3.1-1)
[2008-06-02 09:44] upgraded printproto (1.0.3-1 -> 1.0.4-1)
[2008-06-02 09:44] upgraded qt (4.3.3-4 -> 4.3.4-1)
[2008-06-02 09:44] upgraded rdesktop (1.5.0-2 -> 1.6.0-2)
[2008-06-02 09:44] upgraded spidermonkey (1.60-1 -> 1.7.0-1)
[2008-06-02 09:44] upgraded thunderbird (2.0.0.12-1 -> 2.0.0.14-2)
[2008-06-02 09:46] Updating font cache... done.
[2008-06-02 09:46] upgraded ttf-dejavu (2.24-1 -> 2.25-1)
[2008-06-02 09:46] upgraded vlc (0.8.6f-1 -> 0.8.6f-3)
[2008-06-02 09:46] installed intel-dri (7.0.3-1)
[2008-06-02 09:46] upgraded xf86-video-intel (2.2.1-2 -> 2.3.1-1)
[2008-06-02 09:46] upgraded xorg-server (1.4.0.90-9 -> 1.4.0.90-13)
[2008-06-02 09:46] upgraded xproto (7.0.11-1 -> 7.0.12-1)
[2008-06-02 09:46] upgraded xtrans (1.0.4-1 -> 1.2-1)
=
=========================================================================================================
The kernel.img is a binary and I don't know how to post a binary file.

[2008-06-02 09:43] ==> Running command: /sbin/mkinitcpio -k 2.6.25-ARCH -c /etc/mkinitcpio.conf -g /boot/kernel26.img
[2008-06-02 09:43] :: Begin build
[2008-06-02 09:43] :: Parsing hook [base]
[2008-06-02 09:43] :: Parsing hook [udev]
[2008-06-02 09:43] :: Parsing hook [autodetect]
[2008-06-02 09:44] :: Parsing hook [ide]
[2008-06-02 09:44] :: Parsing hook [scsi]
[2008-06-02 09:44] :: Parsing hook [sata]
[2008-06-02 09:44] ==> FAIL

The kernel26.img failed to build, so now you have an initcpio for an old kernel. Rerunning mkinitcpio (as asked before) will most likely fix the problem, but still interesting why the image failed to build.

A message appears during the /sbin/lilo -v display which claims that the kernel doesn't have device-mapper.

Is this a new change to kernel 2.6.25?

Can you try 2.6.26 from testing and report back?

status on this issue?