[opensuse] fdisk -l not seeing USB thumb-drive
Hello List - yesterday , i plugged in a thumb drive into usb port , and then commanded : fdisk -l - but usb thumb drive was not detected. ................ next , i commanded : mount /dev/sdc2 /mnt [sdc2 being a partition on that same thumb-drive] - result : /dev/sdc2 got mounted quite ok ................ - i just wondered , if the usb port is getting worn out , or , perhaps , something happened to cause "fdisk -l" to have a siesta - maybe someone else experienced similar ?? ............ regards ellan -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
ellanios82 wrote:
Hello List
- yesterday , i plugged in a thumb drive into usb port , and then commanded :
fdisk -l
- but usb thumb drive was not detected.
Drive detection is unrelated to 'fdisk -l'.
next , i commanded : mount /dev/sdc2 /mnt [sdc2 being a partition on that same thumb-drive]
- result : /dev/sdc2 got mounted quite ok
So perhaps the drive completed detection in between your fdisk and your mount? Check with dmesg to see the drive being detected/recognised. I have seen some flash sticks take longer to detect than others. -- Per Jessen, Zürich (13.6°C) http://www.dns24.ch/ - free dynamic DNS, made in Switzerland. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 04/22/2015 11:46 AM, Per Jessen wrote:
ellanios82 wrote:
Hello List
- yesterday , i plugged in a thumb drive into usb port , and then commanded :
fdisk -l
- but usb thumb drive was not detected. Drive detection is unrelated to 'fdisk -l'.
next , i commanded : mount /dev/sdc2 /mnt [sdc2 being a partition on that same thumb-drive]
- result : /dev/sdc2 got mounted quite ok So perhaps the drive completed detection in between your fdisk and your mount?
Check with dmesg to see the drive being detected/recognised. I have seen some flash sticks take longer to detect than others.
- thanks : i learn : dmesg can tell me connect / disconnect of usb devices :) .................. - if i recall , yesterday i tried several thumb-drive usb sticks in turn :: none were seen by 'fdisk -l' :: thus conclude perhaps usb port is worn-out by much use , or, usb detection-process had gone on holiday :( ........... thanks : regards -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 04/22/2015 11:46 AM, Per Jessen wrote:
ellanios82 wrote:
Hello List
- yesterday , i plugged in a thumb drive into usb port , and then commanded :
fdisk -l
- but usb thumb drive was not detected. Drive detection is unrelated to 'fdisk -l'.
next , i commanded : mount /dev/sdc2 /mnt [sdc2 being a partition on that same thumb-drive]
- result : /dev/sdc2 got mounted quite ok So perhaps the drive completed detection in between your fdisk and your mount?
Check with dmesg to see the drive being detected/recognised. I have seen some flash sticks take longer to detect than others.
- thanks : i learn : dmesg can tell me connect / disconnect of usb devices :) .................. - if i recall , yesterday i tried several thumb-drive usb sticks in turn :: none were seen by 'fdisk -l' :: thus conclude perhaps usb port is worn-out by much use , or, usb detection-process had gone on holiday :( ........... - just a subsidiary thought : might this have something to do with kernel-desktop-3.19.4-1.1.x86_64 ? ............... thanks : regards -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
ellanios82 wrote:
On 04/22/2015 11:46 AM, Per Jessen wrote:
ellanios82 wrote:
Hello List
- yesterday , i plugged in a thumb drive into usb port , and then commanded :
fdisk -l
- but usb thumb drive was not detected. Drive detection is unrelated to 'fdisk -l'.
next , i commanded : mount /dev/sdc2 /mnt [sdc2 being a partition on that same thumb-drive]
- result : /dev/sdc2 got mounted quite ok So perhaps the drive completed detection in between your fdisk and your mount?
Check with dmesg to see the drive being detected/recognised. I have seen some flash sticks take longer to detect than others.
- thanks : i learn : dmesg can tell me connect / disconnect of usb devices :)
..................
- if i recall , yesterday i tried several thumb-drive usb sticks in turn ::
none were seen by 'fdisk -l' :: thus conclude perhaps usb port is worn-out by much use , or, usb detection-process had gone on holiday :(
See what dmesg says - you should at least see the USB device being detected, but if it's not recognised as a mass storage device, you won't get to see it with 'fdisk -l'.
- just a subsidiary thought :
might this have something to do with kernel-desktop-3.19.4-1.1.x86_64 ?
You could always try to boot with a previous kernel to verify. -- Per Jessen, Zürich (14.6°C) http://www.dns24.ch/ - your free DNS host, made in Switzerland. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 04/27/2015 10:13 AM, Per Jessen wrote:
See what dmesg says - you should at least see the USB device being detected, but if it's not recognised as a mass storage device, you won't get to see it with 'fdisk -l'.
- thanks : currently all perfect : dmesg sees plugged-in / plugged-out - presently all works ok : also thanks for list suggestions to get usb HUB :: this sounds like a very good idea while usb-ports expected to last a mere 1500 times x plug-in .............. { local economic weather-outlook :: great-great hardship http://www.theguardian.com/world/2015/apr/25/greeks-view-of-debt-crisis-grea... } ............................. regards -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
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Per Jessen