Another success story with 2.6.27, that may be helpful for those searching for EPIA Ubuntu problems:
I was trying to move a bunch of low-power EPIA Mini-ITX-based servers to 8.04 (from 6.04 that has been running without problems literally 24/7/365 since day one), and had enormous problems. The target was to boot and run the OS from a 2 GB USB flash and then utilize the EPIAs internal HW enrcypting to handle SATA disks for 100% data, making it simple to optimize disks (and overall power consumption) as the HW gets cheaper and disk space needs go up. The basic server 8.04 had to be installed on IDE disk first, straight installation to USB failed all the time, with the kernel going to la-la- land. Even to do the IDE installation (with somewhat older Samsung 20 GB spare drive), I needed noapic & nolapic flags, together with the "traditional EPIA" acpi=off. After IDE->USB memory stick image transfer, the system halted repeatedly usually without a trace, sometimes also with spectacular console kernel dumps, usually during a simple apt-get to the USB partition. Switching the EPIA BIOS to USB 1.1 only did not help, just made things awfully slow. The good news is that I switched to use 2.6.27 generic kernel as per the note above, and now the system has been doing very extensive IO both to USB and SATA disks continuously for four days without problems, with USB 2.0 active. Earlier "top score" was just a couple of hours, even when idling. So this new kernel seems to have good karma on it, at least on VIA EPIA 1200 MHz Model EN board. As mentioned, I still have flags "acpi=off noapic nolapic" at menu.lst. The latter ones probably obsolete now that I boot from USB disk. Also, /etc/modules needed: apm power_off=1 To shutdown the power cleanly on 8.04. Worked OK out of the box on all earlier Ubuntus so far. Also, many earlier discussions about EPIA and Ubuntu suggest to add this to /etc/modprobe.d/aliases: alias longhaul off These have been set for me even before the kernel change, and I will not bother to check if they are still needed, as my usage is pure "always on" server only. My question is: is this 2.6.27 kernel coming to 8.04 in the future, or will it only be part of Intrepid? What kind of update problems may I encounter by "jumping" into this new kernel? As a minor side effect, something breaks with appArmor (with bind9 and mysql-server packages) when this kernel is installed. Complains about "Profile version not supported by Apparmor module". Looks somewhat, but not entirely like bug 227046, but naturally I HAVE booted into the new kernel, uname -a says: Linux lua 2.6.27-1-generic #1 SMP Thu Aug 14 15:46:04 UTC 2008 i686 GNU/Linux In the near future, I will try the same new setup on a very old EPIA-M board. -- complete freeze during access of pccard/usb adapter https://bugs.launchpad.net/bugs/234084 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
