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Re: Aborted an Ubuntu 12.04 Upgrade resulted in Booting into Blank Screen
by Russell Coker 14 May '12

14 May '12

If you see it take a long time in future then please rub "top" to see what process is at fault and file a bug report. -- Sent from my Samsung Galaxy S Android phone with K-9 Mail.

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Re: Aborted an Ubuntu 12.04 Upgrade resulted in Booting into Blank Screen
by Toby Corkindale 14 May '12

14 May '12

On 14/05/12 12:19, djitnah(a)greenwareit.com.au wrote: >> On 13/05/12 17:56, Roger wrote: >>> >>>>> I should point out that no operating system is invulnerable from >>>>> monkey attacks like this one. I have seen Windows, Linux, and Mac OS >>>>> X installations b0rked due to upgrades where a monkey took control >>>>> before it completed. Unfortunately thatâ€™s the way the cookie >>>>> crumbles, and data recovery is probably the best long-term option. >>> FWIW. >>> Both Fedora and Ubuntu seem to recommend updating OS files regularly, >>> I've seen this mentioned quite a lot over the years. I update both every >>> few days. >>> My daughter just yesterday updated her Ubuntu Oneiric laptop to Precise >>> after updating to all the latest files, it took from about 4:30pm to >>> 10:45pm to complete downloading, installing and checking the file system. >>> Her system stopped for about 18 minutes - doing what ever it was doing, >>> she just let it go and eventually it got going again. >>> She googled some page or other every 5 minutes to make sure the bigpond >>> inernet did not time out... we had that time out with the last ubuntu >>> upgrade so she made sure it wouldn't happen again. >> > There seem to be an odd thing with Precise install. It takes a really long time when it gets to the language pack > download/installation. I did a beta install a few weeks ago, and I thought it had frozen at this stage. I restarted > and got the same thing. A few days ago it did it again with final release, but I realised that the percentage > indicator had changed after a long time by 1% (which I had probably not notice before) - so I let it go and it > eventually completed. I dont know how long it took, but well over 1hr, since I went away and came back a few hrs > later. Previous ones would take about 20 mins to complete for me. That's interesting.. I've found the upgrade to be quite straightforward.. think it took a little over half an hour. My main desktop is far from a straightforward setup, too -- it's been through multiple Ubuntu versions with a lot of customisation and a dozen PPAs enabled. Toby

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Request to Donate Laptops for Beginner's Workshop
by Clockwork PC 13 May '12

13 May '12

Hello everyone, Linux Users Victoria is looking to have a collection of dedicated laptops for the monthly Beginners' Workshops. If you have an old laptop with at least the following specs, it would go to a very good home: - Atom 1.6Ghz CPU - 1GB RAM - 40GB HDD Please reply to this thread if you have such a laptop to donate, or if you know someone who does, or if you know where such laptops are being sold off at a low price. Regards, Alexander Garber, Secretary, Linux Users Victoria

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netfilter generated keepalive packets
by James Harper 11 May '12

11 May '12

Is it possible to have netfilter generate keepalive packets for connections? I have some proprietary windows services that communicate with each other through a few Linux routers, and I suspect that some connections are timing out (or being selected for purging from the connection tracking due to other more-active connections). If netfilter could generate a keepalive in each direction sometime before timing out the connection it would be great! Any other suggestion appreciated too. The WRT54GL router will be replaced before too long with something with a lot more memory which should resolve those problems but I need an interim solution. Thanks James

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Unnecessary libata retries for media errors maybe going away soon
by Chris Samuel 10 May '12

10 May '12

On the btrfs list it was mentioned that a patch may be queued up for the 3.5 kernel to address unnecessary retries by the block layer for media errors by this patch: http://patchwork.ozlabs.org/patch/156540/ # ATA and SATA drives have had built-in retries for media errors # for as long as they've been commonplace in computers (early 1990s). # # When libata stumbles across a bad sector, it can waste minutes # sitting there doing retry after retry before finally giving up # and letting the higher layers deal with it. # # This patch removes retries for media errors only. -- Chris Samuel : http://www.csamuel.org/ : Melbourne, VIC This email may come with a PGP signature as a file. Do not panic. For more info see: http://en.wikipedia.org/wiki/OpenPGP

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cheapest >1Gb connection
by James Harper 10 May '12

10 May '12

What's the cheapest way to create a high speed connection between two Linux servers these days? I'm using bundled 1Gb connections but I think they are creating a bit of a bottleneck these days. IB, FC, and 10Gb adapters aren't real cheap, even when you just go point to point without worrying about switches, but maybe there are other technologies I'm not aware of?? Thanks James

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USB problems on server
by James Harper 10 May '12

10 May '12

I have a server that seems to have a problem with USB devices. At first I thought it was the USB3 controller (v0.96 of USB3 spec or something like that - see previous thread) but I'm getting the same sort of problem with USB2 devices on the on-board controller. It's a HP ML380G5 server and has performed flawless for a few years now so I'm reluctant to point the finger at that... more likely to be a glitch in Linux. The error I'm getting is "usb 1-6: usb_sg_cancel, unlink --> -43", and google shows no results for "usb_sg_cancel, unlink --> -43" (in quotes) which is not what I would have expected if there was a known regression in the USB code. I'm running Debian kernel linux-image-3.2.0-2-amd64 - 3.2.12-1. I've already upgraded once when this happened last time but it's not a server I can reboot lightly. Any suggestions? The same USB devices seem to work fine in other computers. And the USB3 controller I thought was bad worked fine in another HP server (low end server though - ML110G6) Thanks James

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MySQL question
by Russell Coker 08 May '12

08 May '12

SELECT type,email FROM lists,aliases WHERE lists.uid='user(a)example.com'; SELECT type,email FROM lists,aliases WHERE aliases.alias='user(a)example.com' and lists.uid=aliases.uid; The above MySQL queries return results almost instantly. The below query takes ages but it should just give the union of the results of both the above queries. How can I get the result of the above two queries with a single query that doesn't take ages? I guess that the problem is that it's looking up the aliases table for every row in the lists table. How can I stop it doing that? SELECT type,email FROM lists,aliases WHERE (lists.uid = 'user(a)example.com' or (lists.uid=aliases.uid and aliases.alias='user(a)example.com')); -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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Fwd: [ANN] btrfs.wiki.kernel.org with up-to-date content again
by Chris Samuel 08 May '12

08 May '12

FYI, the primary btrfs wiki site has gone back to kernel.org. -------- Original Message -------- Subject: [ANN] btrfs.wiki.kernel.org with up-to-date content again Date: Mon, 7 May 2012 17:44:16 +0200 From: David Sterba To: linux-btrfs(a)vger.kernel.org Hi, the time of temporary wiki hosted at btrfs.ipv5.de is over, the content has been migrated back to official site at http://btrfs.wiki.kernel.org (ipv5.de wiki is set to redirect there). cheers, david -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

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Word/Excel 2 view in Web App, Libre/OpenOffice or others
by Peter Ross 07 May '12

07 May '12

Hi, I am writing a PHP Web application and look for a way to convert and show documents (esp. Word and Excel, old and new format) I found a Open/LibreOffice converter service: http://zawmn83.wordpress.com/2008/08/12/php-convert-microsoft-word-doc-docx… I would like to restrict the LibreOffice to this tool only. I glanced over the Makefile but could not make sense of many options. Did someone achieve this before? Or are there other ways? Thanks for ideas Peter

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