April 2008 - WLUG - wlug.mailman3.com

Re: [Wlug] usb errors.

by bkn＠ithryn.net

> Otherwise I think it's a usb > problem. That's easily detectable by using a jump drive in the same > ports and check /var/log/messages or dmesg. Also, if it is bad usb hw > on your myth box the hub won't fix it (which is more reason to try one). > I finally tried my usb flash drive from work and i saw the same behavior. a mouse and keyboard appear to work fine through usb, but block devices don't. Thanks for you help. -brad

April 24, 2008

tuning network performance

by Chuck Anderson

We had a discussion on network tuning after the last meeting. Here are some interesting docs on how to enable high performance data transfers: http://www.psc.edu/networking/projects/tcptune/ http://www.web100.org/

April 22, 2008

Re: [Wlug] usb errors.

by brad

On Mon, Apr 21, 2008 at 11:22:23AM -0400, Clint Moyer wrote: > 2.5" external drives are usually powered off the USB bus. If that were the problem, I wouldn't expect linux to see the drive as sda1 at all. Are the laptops that it does work with both linux? Is it formatted as NTFS? > It is a 2.5" drive. It does not have an external power source, to answer eric's question. I got a hold of a Y cable, but that didn't seem to help at all. One labtop is linux and the other labtop is OS X. They both were able to see the drive fine and mount it with the single USB cable, not the Y cable. Currently the drive is formated hfs since i was testing it with the OS X labtop. I find it strange that it can half see the drive. fdisk can see the drive and partition it, but if you try to format the drive you get nothing by read errors on just about every sector on the hard drive. When i get back to my apartment, i will try Eric's suggestion on seeing if a jump drive (which i assume is the same thing as a usb flash drive) can be read by my mythtv box. Thanks for you suggestions, - Brad

April 21, 2008

Ubuntu Release Party

by Aaron Haviland

The Massachusetts Ubuntu Loco Team will be hosting a release party up in Boston for anyone interested. https://wiki.ubuntu.com/MassachusettsTeam/Events/ReleaseParties/8.04-HardyH… April 24th, 2008 7pm till we pass out Globe Bar & Grill 565 Boylston St Boston, MA 02116 (617) 778-6993 And yes, they will be installin Hardy or Gutsy on laptops if people bring them. -- Aaron Haviland

April 21, 2008

Re: [Wlug] usb errors.

by Clint Moyer

2.5" external drives are usually powered off the USB bus. If that were the problem, I wouldn't expect linux to see the drive as sda1 at all. Are the laptops that it does work with both linux? Is it formatted as NTFS? Clint ---- Eric Martin <freak4uxxx(a)gmail.com> wrote: ============= -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 bkn(a)ithryn.net wrote: | Hi All, I recently bought an external usb drive for my mythtv box. It is | a passport western digital drive. The drive works on my labtop as well | as my roommate's labtop. however i cannot get it to work on my mythtv | box. I'm guessing that for some reason the USB bus isn't providing | enough power since the drive is running purely on the USB bus, there is | no external power source. I have tried using a USB cable that has two | USB plugs for devices that draw a lot of power, but that doesn't work | either. My next step is to try a USB powered hub, whenever i can get my | hands on one. Has anyone else has these problems or know of a solution? | dmesg reports the following over and over with the only difference being | the sector reported by the OS at the end of the 2nd to last line. | [1110016.867387] printk: 7 messages suppressed. [1110016.867393] Buffer | I/O error on device sda1, logical block 4 [1110016.978727] usb 4-1: | reset high speed USB device using ehci_hcd and address 3 | [1110017.302341] usb 4-1: reset high speed USB device using ehci_hcd and | address 3 [1110017.622023] usb 4-1: reset high speed USB device using | ehci_hcd and address 3 [1110017.945590] usb 4-1: reset high speed USB | device using ehci_hcd and address 3 [1110018.269144] usb 4-1: reset high | speed USB device using ehci_hcd and address 3 [1110018.580778] usb 4-1: | reset high speed USB device using ehci_hcd and address 3 | [1110018.713271] sd 1:0:0:0: [sda] Result: hostbyte=DID_ERROR | driverbyte=DRIVER_OK,SUGGEST_OK [1110018.713282] end_request: I/O error, | dev sda, sector 73 [1110018.713290] Buffer I/O error on device sda1, | logical block 5 Thanks, - brad | Sounds like you have a USB problem on your mythbox. I have a hard drive that is powered via usb and I know you need to plug both of the USB cables from the Y into the same usb 'block' (you can't plug one in the front and the other in the back). If you were doing that, try plugging them in next to each other. Otherwise I think it's a usb problem. That's easily detectable by using a jump drive in the same ports and check /var/log/messages or dmesg. Also, if it is bad usb hw on your myth box the hub won't fix it (which is more reason to try one). My usb hd has a slot for power, does yours? If so I'd suggest trying it. HTH - -- Eric Martin Key fingerprint = D1C4 086E DBB5 C18E 6FDA B215 6A25 7174 A941 3B9F -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkgMrIMACgkQaiVxdKlBO5+AnACfUffz1SZX7CmFszBqHN93UwGr uoAAn0F07lMxLwfHiVOLrYWR6URQk6bv =x7NM -----END PGP SIGNATURE----- _______________________________________________ Wlug mailing list Wlug(a)mail.wlug.org http://mail.wlug.org/mailman/listinfo/wlug

April 21, 2008

Re: [Wlug] usb errors.

by Eric Martin

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 bkn(a)ithryn.net wrote: | Hi All, I recently bought an external usb drive for my mythtv box. It is | a passport western digital drive. The drive works on my labtop as well | as my roommate's labtop. however i cannot get it to work on my mythtv | box. I'm guessing that for some reason the USB bus isn't providing | enough power since the drive is running purely on the USB bus, there is | no external power source. I have tried using a USB cable that has two | USB plugs for devices that draw a lot of power, but that doesn't work | either. My next step is to try a USB powered hub, whenever i can get my | hands on one. Has anyone else has these problems or know of a solution? | dmesg reports the following over and over with the only difference being | the sector reported by the OS at the end of the 2nd to last line. | [1110016.867387] printk: 7 messages suppressed. [1110016.867393] Buffer | I/O error on device sda1, logical block 4 [1110016.978727] usb 4-1: | reset high speed USB device using ehci_hcd and address 3 | [1110017.302341] usb 4-1: reset high speed USB device using ehci_hcd and | address 3 [1110017.622023] usb 4-1: reset high speed USB device using | ehci_hcd and address 3 [1110017.945590] usb 4-1: reset high speed USB | device using ehci_hcd and address 3 [1110018.269144] usb 4-1: reset high | speed USB device using ehci_hcd and address 3 [1110018.580778] usb 4-1: | reset high speed USB device using ehci_hcd and address 3 | [1110018.713271] sd 1:0:0:0: [sda] Result: hostbyte=DID_ERROR | driverbyte=DRIVER_OK,SUGGEST_OK [1110018.713282] end_request: I/O error, | dev sda, sector 73 [1110018.713290] Buffer I/O error on device sda1, | logical block 5 Thanks, - brad | Sounds like you have a USB problem on your mythbox. I have a hard drive that is powered via usb and I know you need to plug both of the USB cables from the Y into the same usb 'block' (you can't plug one in the front and the other in the back). If you were doing that, try plugging them in next to each other. Otherwise I think it's a usb problem. That's easily detectable by using a jump drive in the same ports and check /var/log/messages or dmesg. Also, if it is bad usb hw on your myth box the hub won't fix it (which is more reason to try one). My usb hd has a slot for power, does yours? If so I'd suggest trying it. HTH - -- Eric Martin Key fingerprint = D1C4 086E DBB5 C18E 6FDA B215 6A25 7174 A941 3B9F -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkgMrIMACgkQaiVxdKlBO5+AnACfUffz1SZX7CmFszBqHN93UwGr uoAAn0F07lMxLwfHiVOLrYWR6URQk6bv =x7NM -----END PGP SIGNATURE-----

April 21, 2008

usb errors.

by bkn＠ithryn.net

April 19, 2008

Re: [Wlug] REMINDER: Upcoming meeting Wed evening 7PM

by Andy Stewart

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Andy Stewart wrote: > > HI Everybody, > > We have a WLUG meeting coming up on Wednesday, April 16th, at 7:00 PM. > Directions to the meeting can be found on the WLUG website. > > There is a remote possibility that I will miss the meeting, which is why > the meeting topic is listed as TBD on the website. If I cannot make it, > I would recommend conducting the meeting as a Birds of a Feather session. HI Everybody, I shall attend the meeting this evening. I'm packing my stuff for my quick demo. See ya there! Andy > > However, if I am able to make it (95% probability), I'll bring my > laptop, battery, DC-DC converter. We can have a discussion about > reducing power consumption in laptops. I can do a quick demo of the > PowerTOP application (see: http://www.lesswatts.org) I don't think > this will take up the entire meeting, but we can use it as a starting > point for further discussions. I also have the CPU frequency control > applications installed to control the clock frequency. > > Naturally, we'll go out for food and refreshments afterwards. > > See ya later! > > Andy > _______________________________________________ Wlug mailing list Wlug(a)mail.wlug.org http://mail.wlug.org/mailman/listinfo/wlug - -- Andy Stewart, Founder Worcester Linux Users' Group (http://www.wlug.org) Chelmsford Linux Meetup Group (http://linux.meetup.com/393) Amateur Radio: KB1OIQ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iD8DBQFIBnTDHl0iXDssISsRAupLAJ9b5A4xLdRoIiMzoLsz9DmZlZirgACeIxpF 0mbjptn55sYQsqqF5OrCjfA= =otpm -----END PGP SIGNATURE-----

April 16, 2008

REMINDER: Upcoming meeting Wed evening 7PM

by Andy Stewart

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 HI Everybody, We have a WLUG meeting coming up on Wednesday, April 16th, at 7:00 PM. Directions to the meeting can be found on the WLUG website. There is a remote possibility that I will miss the meeting, which is why the meeting topic is listed as TBD on the website. If I cannot make it, I would recommend conducting the meeting as a Birds of a Feather session. However, if I am able to make it (95% probability), I'll bring my laptop, battery, DC-DC converter. We can have a discussion about reducing power consumption in laptops. I can do a quick demo of the PowerTOP application (see: http://www.lesswatts.org) I don't think this will take up the entire meeting, but we can use it as a starting point for further discussions. I also have the CPU frequency control applications installed to control the clock frequency. Naturally, we'll go out for food and refreshments afterwards. See ya later! Andy - -- Andy Stewart, Founder Worcester Linux Users' Group (http://www.wlug.org) Chelmsford Linux Meetup Group (http://linux.meetup.com/393) Amateur Radio: KB1OIQ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iD8DBQFIA/YFHl0iXDssISsRApQLAKCC/k2490DuXb7/pcw1o8l+AHEHbwCbBFZY bCjExEV9Lx7npyfVJxlk4Cw= =SNod -----END PGP SIGNATURE-----

April 15, 2008

Re: [Wlug] SPF

by Richard Klein

> -----Original Message----- > From: Doug Chamberlin > > Except that, as Keith has experienced, and as I have also > experienced, some systems recognize the sending IP address as > coming from a block of known dynamically assigned addresses > and reject the messages/connections even though all the > domain info has been set up correctly. I have used TZO's > services to work around this in the past. Highly recommended. Ah, right. I forgot about that. I haven't run into that problem because I have a static IP address. -- Rich

April 10, 2008