Re: [gentoo-user] USB Drive Mount
On Nov 30, 2011, at 6:41 PM, Mark Knecht wrote: That's good news. Is that the external USB cable or something inside a drive case? I'd suspect something like a slightly suspect USB controller somewhere. Changing the cable probably shifted the electrical parameters on the cable just enough that it started working. I should give that a try here and see if I get so lucky! Cheers, Mark The external USB cable. Sean
Re: [gentoo-user] USB Drive Mount
On 11/27/2011 04:02 PM, Mark Knecht wrote: I have something like 10 USB drives here at home. 9 of those drives works perfectly in 5 machines in the house. 1 drive works when attached to 4 of the machines but produces a similar error when attached to my most expensive i7-980x machine. I've never determined what causes it and have sort of decided it's just some weird incompatibility... - Mark Mark, I swapped to a very short USB cable to connect the drives to my system. It cured the problem here. Sean
Re: [gentoo-user] USB Drive Mount
On Wed, Nov 30, 2011 at 3:36 PM, sean tech.j...@myfairpoint.net wrote: On 11/27/2011 04:02 PM, Mark Knecht wrote: I have something like 10 USB drives here at home. 9 of those drives works perfectly in 5 machines in the house. 1 drive works when attached to 4 of the machines but produces a similar error when attached to my most expensive i7-980x machine. I've never determined what causes it and have sort of decided it's just some weird incompatibility... - Mark Mark, I swapped to a very short USB cable to connect the drives to my system. It cured the problem here. Sean That's good news. Is that the external USB cable or something inside a drive case? I'd suspect something like a slightly suspect USB controller somewhere. Changing the cable probably shifted the electrical parameters on the cable just enough that it started working. I should give that a try here and see if I get so lucky! Cheers, Mark
Re: [gentoo-user] USB Drive Mount
On Sun, 27 Nov 2011 15:08:10 -0500 sean tech.j...@myfairpoint.net wrote: I have two 500GB USB drives that my Gentoo system here will not read. Both these drives are fat formatted. The tail of DMESG, the entries actually go on for a long long time, has the following report for either of those two drives, [ 6027.085508] ehci_hcd :01:0a.2: detected XactErr len 0/8 retry 29 [ 6027.085636] ehci_hcd :01:0a.2: detected XactErr len 0/8 retry 30 [ 6027.085760] ehci_hcd :01:0a.2: detected XactErr len 0/8 retry 31 [ 6027.085885] ehci_hcd :01:0a.2: devpath 3 ep0in 3strikes [ 6027.136031] ehci_hcd :01:0a.2: GetStatus port:3 status 001002 0 ACK POWER sig=se0 CSC [ 6027.136052] hub 1-0:1.0: unable to enumerate USB device on port 3 [ 6027.136062] hub 1-0:1.0: state 7 ports 5 chg evt 0008 Both these fat formatted drives are easily read on several other systems running Windows or MAC OS X. The Gentoo system will read small usb memory sticks up to 16 GB fat formatted. The Gentoo system will also read a 750 GB NTFS drive without problems. Is anyone able to point me in the direction to figure out why the fat usb drives will not be read by the Gentoo system? This post http://permalink.gmane.org/gmane.linux.usb.general/48758 implies possible hardware errors (you seem to have protocol errors on the USB bus). Before proceeding further, I'd try a few more tests to narrow down the circumstances that produce the errors. What results do you get if you plug the drives into different USB controllers/ports on the gentoo system? Can you test if they work with a different kernel version (higher and lower than the current one in use)? What kind of drives are these? Are you plugging USB3 drives into USB2 ports for example? If you are really lucky you might have free space on a drive you can run mkfs.vfat on and see if that works. The results of these simple tests stand a good chance of pointing us in the right direction for the next step. -- Alan McKinnnon alan.mckin...@gmail.com
Re: [gentoo-user] USB Drive Mount
On Sun, Nov 27, 2011 at 12:52 PM, Alan McKinnon alan.mckin...@gmail.com wrote: On Sun, 27 Nov 2011 15:08:10 -0500 sean tech.j...@myfairpoint.net wrote: I have two 500GB USB drives that my Gentoo system here will not read. Both these drives are fat formatted. The tail of DMESG, the entries actually go on for a long long time, has the following report for either of those two drives, [ 6027.085508] ehci_hcd :01:0a.2: detected XactErr len 0/8 retry 29 [ 6027.085636] ehci_hcd :01:0a.2: detected XactErr len 0/8 retry 30 [ 6027.085760] ehci_hcd :01:0a.2: detected XactErr len 0/8 retry 31 [ 6027.085885] ehci_hcd :01:0a.2: devpath 3 ep0in 3strikes [ 6027.136031] ehci_hcd :01:0a.2: GetStatus port:3 status 001002 0 ACK POWER sig=se0 CSC [ 6027.136052] hub 1-0:1.0: unable to enumerate USB device on port 3 [ 6027.136062] hub 1-0:1.0: state 7 ports 5 chg evt 0008 Both these fat formatted drives are easily read on several other systems running Windows or MAC OS X. The Gentoo system will read small usb memory sticks up to 16 GB fat formatted. The Gentoo system will also read a 750 GB NTFS drive without problems. Is anyone able to point me in the direction to figure out why the fat usb drives will not be read by the Gentoo system? This post http://permalink.gmane.org/gmane.linux.usb.general/48758 implies possible hardware errors (you seem to have protocol errors on the USB bus). Before proceeding further, I'd try a few more tests to narrow down the circumstances that produce the errors. What results do you get if you plug the drives into different USB controllers/ports on the gentoo system? Can you test if they work with a different kernel version (higher and lower than the current one in use)? What kind of drives are these? Are you plugging USB3 drives into USB2 ports for example? If you are really lucky you might have free space on a drive you can run mkfs.vfat on and see if that works. The results of these simple tests stand a good chance of pointing us in the right direction for the next step. -- Alan McKinnnon alan.mckin...@gmail.com I have something like 10 USB drives here at home. 9 of those drives works perfectly in 5 machines in the house. 1 drive works when attached to 4 of the machines but produces a similar error when attached to my most expensive i7-980x machine. I've never determined what causes it and have sort of decided it's just some weird incompatibility... - Mark
