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Search found 6 results on 1 pages for 'nanne'.

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• Cannot update grub with paramters on live USB

  - by Nanne

  I have booted from a live USB ("Try Ubuntu"), that also has a persistent option set (I used LiLi to create one) to do some tests for this pcie hotplug issue I'm having. I'm trying to test some boot paramaters (like in this question) by doing this sudo nano /etc/default/grub sudo update-grub The problem is that that last command gives me this: /usr/sbin/grub-probe: error: failed to get canonical path of /cow. It looks like /cow is the file-system that is mounted on /, according to: :~# df Filesystem 1K-blocks Used Available Use% Mounted on /cow 4056896 2840204 1007284 74% / udev 1525912 4 1525908 1% /dev tmpfs 613768 844 612924 1% /run .... Is there a way for me to run update-grub?

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• High load (and high temp) with idle processes

  - by Nanne

  I've got a semi-old laptop (toshiba satellite a110-228), that's appointed 'laptop for the kids' by my sister. I've installed ubuntu netbook (10.10) on it because of the lack-of memory and it seems to work fine, accept from some heat-issues. These where never a problem under windows. It looks like I've got something similar to this problem: Load is generally 1 or higher, sometimes its stuck at 0.80, but its way to high. Top/htop only show a couple of percentage CPU use (which isn't too shocking, as i'm not doing anything). At this point all the software is stock, and i'd like to keep it that way because its supposed to be the easy-to-maintain kids computer. Now I'd like to find out: What could be the cause of the high load? Could it be as this thread implies, some driver, are there other options to check? How could I see what is really keeping the system hot and bothered? How to check what runs, etc etc? I'd like to pinpoint the culprint. further steps to take for debugging? The big bad internet leads me to believe that it might be the graphics drivers. The laptop has an Intel 945M chipset, but that doesn't seem to be one of the problem childs in this manner (I read a lot abotu ATI drivers that need special isntall). I'd not only welcome hints to directly solve this (duh) but also help in starting to debug what is going on. I am really hesitant in installing an older kernel, as I want it to be stock, and easy upgradeable (because I don't live near it, it should run without me ;) ) As an afterthought: to keep the whole thing cooler, can I 'amp up' the fancontrol? Its only going "airplane" mode when the computer is 95 Celcius, which is a tad late for my taste. Top: powertop:

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• crippling repeating "pciehp card not present" notifications

  - by Nanne

  When using ubuntu (12.04, both installed and on a live usb) I get a lot of these messages: pciehp 0000:00:1c.5:pcie04: Card not present on Slot(37) pciehp 0000:00:1c.5:pcie04: Card present on Slot(37) And with a lot I mean about 20 per second. This has a crippling effect, and I would like to get rid of it :) The computer is a packard bell easynote BG48-U-100 DC. I tip I picked up from some fedora/redhat error here was to look at lspci -vnn. I have pasted the part about "00:1c.5" here: http://pastebin.com/0sfsiqW2 For what good it may do, here is the lsmod of my machine: http://pastebin.com/DQZy1kAL From that first pastebin I think to conclude that it has to do with the module shpchp, which seems to me (aka: google) to have something to do with ACPI. That's as far as I've come in disecting this. Can anyone help me along further? What can I do, check etc? I did see this topic but my intentions are not to surpress the error message: I know how to do this (from that topic ;) ), but I'm looking for a real sollution. Finding the problem on the internet does suspect me to believe it is neither an ubuntu specific nor a packard-bell specific problem.If you google the problem it seems that is present on several other distribution/hardware combo's as well, and it looks like the advice is to remove one of the drivers? I have no clue as to which driver I should look at and and what would be the effect of just removing it. I have seen this topic which is old-ish, but describes my problem and is about a similar computer. The solution in this topic was to compile a new kernel using a spanish guide, which seems a bit extreme to me, so I'm kinda hoping for a better solution than that.

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• Unexpected(?) high 'wasted' memory in memcached

  - by Nanne

  Looking at our memcached stats I think I have found an issue I was not aware of before. It seems that we have a strangely high amount of wasted space. I checked with phpmemcacheadmin for a change, and found this image staring at me: Now I was under the impression that the worst-case scenario would be that there is 50% waste, although I am the first to admit not knowing all the details. I have read - amongst others- this page which is indeed somewhat old, but so is our version of memcached. I think I do understand how the system works (e.g.) I believe, but I have a hard time understanding how we could get to 76% wasted space. The eviction rate that phpmemcacheadmin shows is 2 ev/s, so there is some problem here. The primary question is: what can I do to fix this. I could throw more memory at it (there is some extra available I think), maybe I should fiddle with the slab config (is that even possible with this version?), maybe there are other options? Upgrading the memcached version is not a quickly available option. The secondairy question, out of curiosity, is of course if the rate of 75% (and rising) wasted space is expected, and if so, why. System: This is currently not something I can do anything about, I know the memcached version isn't the newest, but these are the cards I've been dealt. Memcached 1.4.5 Apache 2.2.17 PHP 5.3.5

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• Immersed versus 'normal' version of chrome

  - by Nanne

  I installed chrome, and now I have 2 ways to open chrome: if I open chrome from the metro-tile menu, I get the full-screen, immersed, windows-8 style chrome. If I start the link I got on my desktop, I get the windowed version. Apart from the fact that I would like to know how I might do that on purpose, I also want to know what's going on so I can use the windowed version (I prefer that for a browser) from all links I have, especially the one in the menu.

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• How expensive is a hostname in htaccess? Other solutions possible?

  - by Nanne

  For easy allow or disallowing of dynamic IP-adresses you can add them as a hostname in a .htaccess file. As I have read from: .htaccess allow from hostname? it does a reverse lookup on the connecting ip address, seeing if the response matches the allowed name. (Well, actually Apache is doing a double lookup, first a reverse lookup and then a forward lookup on the result of the reverse.) This is the reason we are currently not using dynamic-ip hostnames in the .htaccess: this "sounds" quite heavy: 2 extra lookups for every request. Is this indeed quite heavy, and would a reasonably busy server that is rather looking for less then more load get away with this :)? (e.g.: how does this 'load' compare to the rest? If a request is 1000 times more expensive then the lookups it might be negligible. otoh, it could be that final straw :) ) Are there other solutions? I can write a script that does a lookup of the hostname and put it in .htaccess files ofcourse, but this feels a bit like a hack.

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