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Re: [ALUG] Ubuntu 9.10, Networking and NFS
by phil.ashby＠bt.com 15 Feb '10

15 Feb '10

Steve Fosdick <lists(a)pelvoux.nildram.co.uk> wrote: > > You may have read in another thread that I now have a NAS. The NAS > supports NFS so it seemed completely natural to NFS mount a directory > tree from the NAS on a desktop PC and to put this mount in the > /etc/fstab file so it is mounted whenever the desktop PC is started. I > did this and specified the 'bg' option so that if the file system > concerned is not available the mount is retried in the background. > > Upon the next reboot of the PC it got stuck in the boot process in such > a way that all I could see was the Ubuntu logo and no text. Using the > Ctrl-Alt combinations to switch virtual console did not make any > difference (no text appeared) and Ctrl-Alt-Backspace to kill a running X > server did not make any difference either. In the end I used the magic > SysReq to reboot the PC. > > Upon choosing the "recovery mode" from GRUB I found that the NFS mount > was not working because the network card was not up. It seems that when > you use the helpful GNOME-based network configuration to configure a > network connection it then does not get started early enough in the boot > process to support the NFS mount which is rather different than if it > had been configured in the /etc/network/interfaces file. I had a very similar issue with my studio machine connecting to the NAS in the house using NFS over a longish ethernet string (~50m). In my case I had used /etc/network/interfaces to permanently configure the network card, and all worked well with 8.04. Upgrading to 9.10 late last year and switching to 'upstart' caused the NFS mount to fail sometimes on startup. Further investigation of the 'upstart' configuration (in /etc/init/*) indicated that there was a race condition between the 'mountall' process and the networking startup: if the network came up quickly enough (which varies a bit depending on the rain and DHCP server response speed :) all was well; if the network init was a bit slow, then mountall would be stopped by the rcS event or exit of it's own accord and nothing would mount the NFS when the network did come up. I fixed this by the rather ugly hack of modifying the mountall-net.conf script to directly call mount on my NFS if it was unable to find mountall running. There are other similar problems it seems with upstart and NFS: https://bugs.launchpad.net/ubuntu/+source/mountall/+bug/501678 https://bugs.launchpad.net/ubuntu/+source/mountall/+bug/430348 Phil.

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Ubuntu 9.10, Networking and NFS
by Steve Fosdick 15 Feb '10

15 Feb '10

You may have read in another thread that I now have a NAS. The NAS supports NFS so it seemed completely natural to NFS mount a directory tree from the NAS on a desktop PC and to put this mount in the /etc/fstab file so it is mounted whenever the desktop PC is started. I did this and specified the 'bg' option so that if the file system concerned is not available the mount is retried in the background. Upon the next reboot of the PC it got stuck in the boot process in such a way that all I could see was the Ubuntu logo and no text. Using the Ctrl-Alt combinations to switch virtual console did not make any difference (no text appeared) and Ctrl-Alt-Backspace to kill a running X server did not make any difference either. In the end I used the magic SysReq to reboot the PC. Upon choosing the "recovery mode" from GRUB I found that the NFS mount was not working because the network card was not up. It seems that when you use the helpful GNOME-based network configuration to configure a network connection it then does not get started early enough in the boot process to support the NFS mount which is rather different than if it had been configured in the /etc/network/interfaces file. At this point I also found that one RAID array was failing to start which, after some investigation turned out to be a zeroed-out RAID superblock on one of the partitions which I will discuss in another thread. I now do not know if the failing NFS mount was responsible for the hung boot process and the superblock got corrupted by the magic SysReq reboot or if the superblock was corrupted by a failing drive and the NFS mount was a red herring but it was certainly somewhat surprising. Steve.

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Recovering a RAID Array
by Steve Fosdick 14 Feb '10

14 Feb '10

I mentioned in another thread that I needed to recover a RAID array when the RAID superblock on one of the partitions had become corrupted. I could not find any documentation that deals with this - most of the examples assume you are hot swapping a failed device from an array that is running whereas in my case the system would not start the array concerned. If I ran: mdadm -A /dev/md0 /dev/sda7 /dev/sdb7 /dev/sdc7 /dev/sdd1 I would get an error message about the superblock on /dev/sda7. After much fiddling about the answer turned out to be to add the --force option after which the array is started without /dev/sda7. After that the corrupt but working partition can be added back in: mdadm /dev/md0 -a /dev/sda7 and at that point the array is resynchronised to include /dev/sda7 . Regards, Steve.

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Re: [ALUG] JavaScript/HTML issue
by Ian Porter 14 Feb '10

14 Feb '10

I am on my mobile, but not sure if this helps ? http://www.codingfriends.com/index.php/2009/07/27/styles-alter-with-javascr… Hth Regards Ian Porter www : www.codingfriends.com On 14 Feb 2010, at 16:02, James Bensley <jwbensley(a)gmail.com> wrote: > Got a page with a frameset containing two frames (frame 0 and frame > 1). The page in the top frames (frame 0) has links and each link calls > the same JavaScript function parsing a different value. I want the > bottom frame page (frame 1) to have its background colour set to the > parsed value. > > My problem is, within the JavaScript function; > window.parent.frames[1].document.bgColor = "#xxxxxx" > > Will change the bgcolor but I have since gotten round to implementing > css. Now this won't change the bgcolor because of the css use of > background-color. > > However; > > window.parent.frames[1].document.style.backgroundcolor = "#xxxxxx"; > > Doesn't change the background color. Internet Explorer shows me this > error: > > 'window.parent.frames.1.document.style' is null or not an object > > I'm stumped? Any advice would be greatly appreciated! > > -- > Regards, > James ;) > > Charles de Gaulle - "The better I get to know men, the more I find > myself loving dogs." - > http://www.brainyquote.com/quotes/authors/c/charles_de_gaulle.html > > _______________________________________________ > main(a)lists.alug.org.uk > http://www.alug.org.uk/ > http://lists.alug.org.uk/mailman/listinfo/main > Unsubscribe? See message headers or the web site above!

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Re: [ALUG] Puppy Linux
by Sam Tuke 14 Feb '10

14 Feb '10

I've used Puppy a few times. I'd imagine that there's a good chance that it'll run on your machine. Puppy is *very* much lighter than Xubuntu in my experience. XFCE is really not king of the featherweight class any more. Puppy has been good for hardware on past machines of mine. However, it uses all its own configuration applications with their own quirks and so it can take a little while to get used to them at first. Puppy feels like its made to be used as a desktop distro - attractive intuitive desktop with all key apps pre installed, despite its small install size and minimal requirements. If the puppy desktop feels a bit foreign, I recommend that you try an LXDE based distro, as this has replaced XFCE as the most fully featured low spec DE in my view. You might want to investigate these distros as alternatives: tinyme, crunchbang, knoppix Sam. On Sunday 14 Feb 2010 10:17:42 main-request(a)lists.alug.org.uk wrote: > > Hi > > > > Has anyone used Puppy Linux. Im looking for a small lightweight distro with good hardware support. > > > > Puppy Linux seems to work on very low hardware, has flash support out of the box and good wireless support. > > > > I tried Xubuntu but couldnt get it installed. I tried Fluxbuntu but wasnt impressed. I tried DSLN but it required a lot of tweaking. > > > > I just wondered if any of you Linux lovers had tried Puppy Linux. > > > > Ive got a P2 300mhz with 160mb ram. > > > > Simon

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Puppy Linux
by Simon Royal 14 Feb '10

14 Feb '10

Hi Has anyone used Puppy Linux. Im looking for a small lightweight distro with good hardware support. Puppy Linux seems to work on very low hardware, has flash support out of the box and good wireless support. I tried Xubuntu but couldnt get it installed. I tried Fluxbuntu but wasnt impressed. I tried DSLN but it required a lot of tweaking. I just wondered if any of you Linux lovers had tried Puppy Linux. Ive got a P2 300mhz with 160mb ram. Simon --- Catch me on Twitter http://twitter.com/SimonRoyal or Skype me: Simon-Royal

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Linux equivalent to .hosts
by Paul Grenyer 13 Feb '10

13 Feb '10

Hi All I've finally manged to get Ubuntu to connect to my work's fortinet VPN. Yay! However, remote DNS does not work and sticking the company's DNS servers in /etc/resolv.conf didn't fix it. What's the Linux equivalent to the windows .hosts file? -- Thanks Paul Paul Grenyer e: paul.grenyer(a)gmail.com b: paulgrenyer.blogspot.com

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Looking for a web mail viewing app - any ideas?
by Chris G 13 Feb '10

13 Feb '10

I'm looking for something that will allow me to view mail as web pages but I'm not after webmail, I'll try and explain.... I want to be able to incorporate sequences of mail (saved as maildir mailboxes) into a web site so that one can quickly look through an E-Mail 'conversation' via the web. As I said the E-Mail is already at in maildir mailboxes on the system where the apache server is running so the files are accessible, all I really want is a vaguely civilised interface that I can link to from other pages. For example the link might look something like:- http://home.isbd.net/email.php&Mail:boating:leBoat where email.php is the clever E-Mail reading bit and "Mail:boating:leBoat" is the path down through the mail hierarchy to the mailbox I want to show. Ideally you'd see a clickable list of E-Mails from the mailbox. Any ideas or places to look for such a thing (or bits to make it) would be most welcome. -- Chris Green

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Really silly monitor setup
by Chris G 12 Feb '10

12 Feb '10

I have just bought a new system to set up for a friend. Quite straightforward Asrock G41MH-GE motherboard with a HANNspree 23" monitor. It's been a right royal pain to get going as much because of the silly monitor and BIOS setups as because of a kernel/Intel incompatibility. The monitor initially seems pretty standard with on screen setup and buttons to move through the menus but the real pain is that if there is no signal input you can't activate the menu. It actually tells you this in the manual, I didn't believe it at first but it really is true. I had set the monitor to VGA input (it's dual VGA and HDMI) but (for various reasons, see below) I had the HDMI lead connected. Hit the 'menu' button and notheing happens because there's no input on the VGA connector, sort of Catch22 really, I had to actually connect something to send it a VGA signal to let me get the menu up to switch it to DVI input. OK, it would *probably* have managed itself if I'd left it at Auto input select but we wanted to specifiy which input was being used. Then onto the BIOS on the Asrock motherboard. The boot options only appear for a very short time, too short to actually read them so you have to look in the manual to find it's F2 to get the BIOS setup. The real oddity though is that the splash screen (with the options) *only* appears after a power on, hitting the reset button doesn't show it so then you are really in the dark. I've never come across a motherboard where hitting reset doesn't produce the same effect as power on. -- Chris Green

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Laptop Needed Urgently
by Simon Royal 11 Feb '10

11 Feb '10

Hi fellow Linux users. I am still im desperate need for a laptop. After only being in the linux world for a short while my Samsung laptop died. I am now without a laptop and have to grab the odd minute on my wifes Windows machine. Does anyone have an old laptop laying around doing nothing, that I could dust off and make use of? An old P1 or P2 would be fine. I would only be running Xubuntu or DSL-N. I live in Watton but can travel. Simon --- Catch me on Twitter http://twitter.com/SimonRoyal or Skype me: Simon-Royal

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