[Solved]USB Flash Drive inaccessible.

light · 2013-03-17 20:07:10

Hi there.

I have installed Arch Linux on my Sony laptop and I have configured it so that most stuff works. The only problem I'm facing now, is that my USB Flash Drive won't show up when I plug it in. I have tried restarting ehci service, but it does not solve anything. I had this problem many years ago with another computer running Linux, but I can't remember how it got solved. Connecting a USB-mouse works perfectly but not a flash drive. The drive is a FAT32 formatted Kingston.

This is my dmesg log:

[  109.300651] usb 2-1.3: new high-speed USB device number 4 using ehci_hcd
[  109.613294] Initializing USB Mass Storage driver...
[  109.613459] scsi7 : usb-storage 2-1.3:1.0
[  109.613577] usbcore: registered new interface driver usb-storage
[  109.613579] USB Mass Storage support registered.
[  110.614456] scsi 7:0:0:0: Direct-Access     Generic  Flash Disk       8.07 PQ: 0 ANSI: 2
[  110.616674] sd 7:0:0:0: [sdc] 8237056 512-byte logical blocks: (4.21 GB/3.92 GiB)
[  110.617821] sd 7:0:0:0: [sdc] Write Protect is off
[  110.617835] sd 7:0:0:0: [sdc] Mode Sense: 03 00 00 00
[  110.618550] sd 7:0:0:0: [sdc] No Caching mode page present
[  110.618561] sd 7:0:0:0: [sdc] Assuming drive cache: write through
[  110.621899] sd 7:0:0:0: [sdc] No Caching mode page present
[  110.621908] sd 7:0:0:0: [sdc] Assuming drive cache: write through
[  110.787723]  sdc: sdc1
[  110.880634] sd 7:0:0:0: [sdc] No Caching mode page present
[  110.880647] sd 7:0:0:0: [sdc] Assuming drive cache: write through
[  110.880655] sd 7:0:0:0: [sdc] Attached SCSI removable disk

Running openbox with PCManFM. Any clues how to solve this?

Last edited by light (2013-03-17 21:26:26)

s1ln7m4s7r · 2013-03-17 20:18:10

For what i can see from the log there is no problem.

Have you tried to manually mount it? To see if it is a PCManFM issue. Also, have you checked this:

https://wiki.archlinux.org/index.php/PC … ge_devices

Last edited by s1ln7m4s7r (2013-03-17 20:19:40)

light · 2013-03-17 20:50:49

s1ln7m4s7r wrote:

For what i can see from the log there is no problem.
Have you tried to manually mount it? To see if it is a PCManFM issue. Also, have you checked this:
https://wiki.archlinux.org/index.php/PC … ge_devices

Hi.

I tried installing gvfs, apparently I uninstalled it for some reason before. But it did not help mounting the flash drive. So I tried mounting it manually and it worked (Yaay!). But it complained that my flash drive was not mentioned in fstab. So I looked in fstab and the only ones listed is my root partion "/" and "/home". So how do I add USB mounting to fstab? I'm a little bit confused.

And one off-topic question: Shouldn't my "/var" partion also be mentioned in fstab?

Thanks for helping me

Edit: This is how fstab looks right now

# 
# /etc/fstab: static file system information
#
# <file system>	<dir>	<type>	<options>	<dump>	<pass>
# /dev/sda2 LABEL=/
UUID=ed07bdb6-61c6-4cc7-b98d-122a869046f1	/         	ext4      	rw,relatime,data=ordered	0 1

# /dev/sda4 LABEL=/home
UUID=7448100b-682b-430f-9e59-327ce6f9f22c	/home     	ext4      	rw,relatime,data=ordered	0 2

Last edited by light (2013-03-17 20:54:38)

s1ln7m4s7r · 2013-03-17 20:56:25

light wrote:

s1ln7m4s7r wrote:
For what i can see from the log there is no problem.
Have you tried to manually mount it? To see if it is a PCManFM issue. Also, have you checked this:
https://wiki.archlinux.org/index.php/PC … ge_devices
Hi.
I tried installing gvfs, apparently I uninstalled it for some reason before. But it did not help mounting the flash drive. So I tried mounting it manually and it worked (Yaay!). But it complained that my flash drive was not mentioned in fstab. So I looked in fstab and the only ones listed is my root partion "/" and "/home". So how do I add USB mounting to fstab? I'm a little bit confused.

Read this:

https://wiki.archlinux.org/index.php/US … SB_devices

And one off-topic question: Shouldn't my "/var" partion also be mentioned in fstab?

No, only if you have a separated partition for it.

WonderWoofy · 2013-03-17 20:58:35

Check what is actually mounted with the mount command with no args. I suspect that if /var is not listed in your fstab, you have been using the / partition for /var and have an empty (or nearly empty) partition your intended for /var but never actually put there.

If this is the case, the good news is that a simply rsync or cp -ax can transfer the stuff in workable form to the partition for you.

About the usb drive in the fstab, you don't really need it. I'm not sure why gvfs didn't work, but I know that it has been having some serious issues recently, and I am not sure if those were ever fixed. I don't use it personally, I just remember seeing it pop up in the forums over and over again a couple months back.

If you want to be able to mount with user permissions, you should use either udisks or udisks2. I like udisks simply because of where it mounts things, but I now have /media as a symlink to where udisks2 would mount it anyway... so I have no reason to prefer one over the other. I don't really use it anyway.

MagicSkyFairy · 2013-03-17 20:59:49

It doesn't mount, or it isn't recognized at all?

If you don't know, type in:

sudo fdisk -l

This will list the connected device. For me sda is usually my main HDD and sdb is the first USB I plugged in.

If you think you see the device, just mount it.

sudo mount /dev/sdXN <directory you want to mount it to>.

Replace X with the device letter. and N with the partition number(probably 1, example: /dev/sdb1)

WonderWoofy · 2013-03-17 21:06:54

@MagicSkyFairy, if you read above, the OP said that he/she was able to mount it manually.

light · 2013-03-17 21:11:05

WonderWoofy wrote:

Check what is actually mounted with the mount command with no args. I suspect that if /var is not listed in your fstab, you have been using the / partition for /var and have an empty (or nearly empty) partition your intended for /var but never actually put there.
If this is the case, the good news is that a simply rsync or cp -ax can transfer the stuff in workable form to the partition for you.
About the usb drive in the fstab, you don't really need it. I'm not sure why gvfs didn't work, but I know that it has been having some serious issues recently, and I am not sure if those were ever fixed. I don't use it personally, I just remember seeing it pop up in the forums over and over again a couple months back.
If you want to be able to mount with user permissions, you should use either udisks or udisks2. I like udisks simply because of where it mounts things, but I now have /media as a symlink to where udisks2 would mount it anyway... so I have no reason to prefer one over the other. I don't really use it anyway.

Thank you for clearing things up Lot's of stuff changed since I last used Arch, so I think the best thing to do is wiki reading. Lots of it.

Thank's for helping me guys.

Arch Linux

#1 2013-03-17 20:07:10

[Solved]USB Flash Drive inaccessible.

#2 2013-03-17 20:18:10

Re: [Solved]USB Flash Drive inaccessible.

#3 2013-03-17 20:50:49

Re: [Solved]USB Flash Drive inaccessible.

#4 2013-03-17 20:56:25

Re: [Solved]USB Flash Drive inaccessible.

#5 2013-03-17 20:58:35

Re: [Solved]USB Flash Drive inaccessible.

#6 2013-03-17 20:59:49

Re: [Solved]USB Flash Drive inaccessible.

#7 2013-03-17 21:06:54

Re: [Solved]USB Flash Drive inaccessible.

#8 2013-03-17 21:11:05

Re: [Solved]USB Flash Drive inaccessible.

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