How can I find which /dev/? device to mount my USB hard drive on redhat 3 taroon, I've been googling a lot and checked log files and still no clue. I'm trying my last chance with you experts, # /sbin/fdisk -lgives nothing about the USB drive
# lsusb -vv
Bus 004 Device 005: ID 059f:0951 LaCie, Ltd
Device Descriptor:
[code]....
I've bought an X10 Home Automation USB interface: the CM15.
This is the information lsusb gives:
skerit@KIP-DU-SKER:~$ lsusb Bus 008 Device 002: ID 0bc7:0001 X10 Wireless Technology, Inc. ActiveHome (ACPI-compliant)
But this tells me nothing about where the device file is! How can I find that, or create one myself?
I just compiled my first own kernel (I'm using Arch Linux), following the tutorial on the german site. Now I tried to boot it, I ended up failing with this message: Code: Waiting 10 seconds for device /dev/sda1 ... Root device '/dev/sda1' doesn't exist, Attempting to create it. ERROR: Unable to determine major/minor number of root device '/dev/sda1' Here is the important part of my menu.lst:
[Code]....
I simply copy&pasted the Arch-entry, i.e. I also had the disk by uuid there. The failure message was the same, just the root device name was the different name Also, at first I did not have the initrd line in my menu.lst (as written in my tutorial that I may not need it). In this case I had this error message:
[Code]....
I am trying to set up my usb device to be available to mount and umount only for me, not for other users. Using Slackware 12.2Entry in fstab is as follows:
Code:
/dev/disk/by-label/USB /media/usbvfat auto,group,user,noexec,gid=usb,umask=007 0 0
device information:
[code]....
I have a Corsair R60 ssd disk which is a disk with both sata and usb connectors. But the usb thing seems to be a bit non-standard, or maybe its just my fedora linux.When I insert the disk using a usb cabel to a running Fedora 14 linux system, a device called /dev/sg3 is added but that is all. No new /dev/sd* device is created so I can't mount the disk.
If I look at
cat /proc/scsi/sg/device_strs
I get
ATA Hitachi HTS54321 FB2O
HL-DT-ST DVDRAM GSA-T50N RP05
Seagate Desktop 0130
Corsair CSSD-R60GB2
So the disk is there. (The last entry) but my linux will for some reason not see it as a usb hard disk. When I insert other usb disks they work fine. It is only this specific disk which causes problems. I have tried on 3 different computers with the same result.
A hint to the problem may be that if I add the disk to a windows system(With usb) the disk is called "A fixed disk" and not a portable disk as expected. The disk works fine with linux If i connect it with the sata cabel, but I would really like to have it working with usb too. (To mount it on computers without sata).
Added:I did try to mount /dev/sg3 but mount say that its not a block device. (File say Its a character special device).
Added output from dmesg:
[ 97.454073] usb 7-1: USB disconnect, address 2
[ 105.913055] hub 2-0:1.0: unable to enumerate USB device on port 3
[ 107.048054] usb 2-3: new high speed USB device using ehci_hcd and address 5
[ 107.162900] usb 2-3: New USB device found, idVendor=1b1c, idProduct=1ab8
[code]....
I found an other guy with exactly the same problem [URL] so I think its beginning to look like a bug in the drives firmware or in the linux kernel.
Final update:Corsair have said that the disk design is broken and there does not seem to be any way to make it work.
i can't mount my USB flash disk using GUI... trough normal "mount" command it works fine, but i want to make it automatic. here is error output:
Code:
Rejected send message, 1 matched rules;
type="method_call", sender=":1.13" (uid=1000 pid=2301 comm="exo-mount)
interface="org.freedesktop.Hal.Device.Volume"
member="Mount" error name="(unset)" requested_reply=0
destination="org.freedesktop.Hal" (uid=0 pid=1488 comm="/usr/sbin/hald))
[root@servers guest]# /bin/mount -o -uid=root,gid=root,username=userid,password=user1passwd //172.16.1.212/backup/user1backup /mnt/tmp
retrying with upper case share name
mount error 6 = No such device or address
Refer to the mount.cifs(8) manual page (e.g.man mount.cifs)
[root@servers guest]#
I also tried:
[root@servers guest]# /bin/mount -t cifs -o -uid=root,gid=root,username=user1,password=user1pass //172.16.1.212/backup/user1backup /mnt/tmp
but no luck!
I have a microphone that I connected via USB. When I do dmesg it shows [37830.040274] usb 5-1: new full speed USB device using uhci_hcd and address 4 How do I find out what /dev/??? identifier has been associated with the device? I want to record something using XVidCap and need to set the microphone for it to work.
View 5 Replies View RelatedRecently, I created a device sc0 through device mapper. The divice could be found in /dev/mapper/sc0. My problem is that the device doesn't exist in /dev/partitions which will block my following test.BTW, I found dm-0 in /dev/partitions. Is it the same as /dev/mapper/sc0? But the device /dev/dm-0 doesn't exist!
View 2 Replies View RelatedI'm trying to get fstab to auto-mount a removable device when its plugged in? Is this possible and if not what is the easiest way to auto-mount a removable device?
View 3 Replies View RelatedI am developing a device that will run Linux as its operating system.The device is a small form factor X86 device with a flash drive exposed as a SATA-device. So it is not very dissimilar from any other PC running Linux.For several good reasons I am building my own "distribution", instead of using an existing one.What confuses me is how mount/umount of the root file system is handled.I boot my kernel with the commandline "root=/dev/sda1 rw" which works fine. But everytime I do poweroff or reboot Busybox complained about no /etc/fstab, so I decided to build one.Should I have an entry for my root file system? It seems like this is shadowed by the rootfs anyway. I.e. if I have the fstab entry "/dev/sda1 / ext2 1 1" mount still reports rootfs on / type rootfs (rw)/dev/root on / type ext2 (rw,relatime,errors=continue)My questions are:Do I need to worry? Will the drive be correctly unmounted by the kernel on poweroff/reboot?If I want to perform file system checking on boot, can I do that without resorting to an initrd?
View 1 Replies View RelatedI have a program which mounts /dev/sdb1 for which I lack the source code. This device does not exist on my RedHat 9 system and I want to create /dev/sdb1 such that it's an alias for /dev/hdb1 Can I do this? with MAKEDEV?
I need to have an alias which will allow it to mount, not create a symbolic link to an already mounted directory. i.e. 'mount /dev/sdb1 /mnt/harddrive' should actually mount /dev/hdb1
mount: special device /dev/scd0 does not exist
View 1 Replies View RelatedI'm using an external USB drive to perform system backups. The script I'm using has a mount command - mount /dev/sdcx /systembak, it works fine until the external drive is mounted into a different USB port which causes the device path to change and the script needs to be modified to reflect that change. Looking in the /dev/disk/ directory I see ./by-id ./by-label ./by-path ./by-uuid. I've been able to mount the disk using one of the device pointers in those directories; are any of those device pointers static or do they change every time the USB disk is plugged into a different USB port.
OS: RHEL/CentOS
What do I call this device in /etc/fstab. Currently the line I'm using is... code...
Having made a mount directory (/media/ipod) an error message tells me
... mount: special device /dev/sdc0 does not exist...
when I try to mount it.
I cannot see it in 'gparted' or 'disk utility' but I can see it on sys log and kern log when I plug it in and remove it.
I have visited several help forums and loaded several types of recommended software (ifuse-libs and mux's etc) but with no satisfactory result.
I have successfully 'Jail broken' the device using 'Blackra1n' on a windows machine.
It used to appear on the desktop but alas...no more. I've obviously broken something!
How come I can view the contents of the drive using Dolphin before I mount the device? I cannot see the contents using the bash shell until the device is mounted.
View 4 Replies View Relatedwhat now trying to mount partition get this error this is the partition ubuntu 9.10 is installed on and upon reboot error no device with a long string. mount: can't find /dev/sda6/mnt in /etc/fstab or /etc/mtab
so now that I believe I've successfully mounted the partition how do I direct the bootloader to this partition /dev/sda6 on /media/11076e45-e27d-470b-bb6d-6894f7809a0c type ext4 (rw,nosuid,nodev,uhelper=devkit)
I am using Cron for nightly backups to a usb device. I was just wondering in my script for the backup, how do I find the location of my usb device.
View 2 Replies View RelatedHow can I mount a device with specific user rights on start up? I still have some problems figuring it out. I would like to mount the divide with uid=1000 and gid=1000. My current entry to the /etc/fstab/ file looks like this:
dev /var/www vboxsf rw, suid, dev, exec, auto, nouser, async, uid=1000
I need a command to display the next info from my hdd:
device name - filesystem - uuid - mount point
I found blkid but the mount point is not displayed, I've already look in man but there is no parameter for that
Found a raw device for my card when reading through the /proc/partition list but got a "no device" message when mounting the card - mount -t vfat /dev/sda1 /var/card though there is sda in the list.How to know if sda1 exists?
View 1 Replies View RelatedHow do you find the device (e.g. /dev/*) for a mounted USB drive in Linux (Ubuntu 10.04)? I'm trying to format a Cruzer USB flash drive, and when I plug it in, the icon for the mounted filesystem appears on my desktop. However, when I open GParted, it doesn't list the filesystem as an option to partition.
The recommendations I've found through Google include monitoring tail -f /var/log/messages, which they claim should list the device name when the drive is mounted, but this never happens for me. I've also read that the USB drive would usually be linked to /dev/sdb, but this appears as a broken link on my filesystem. How else would I find the device?
I have one hard disk (call her HDA) that contains nothing but a single ext4 partition containing a backup of all my important data. Last night I did a clean install of Ubuntu 10.10 on my primary hard disk (call her HDB) and from there proceeded to upgrade directly to Ubuntu 11.04 upgrade. In 10.10, I was able to read HDA just fine. However after the upgrade, I can no longer mount this drive. When mounting from file browser:
Code:
Error mounting: mount: wrong fs type, bad option, bad superblock on /dev/sda,missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so The end of dmesg said the following:
Code:
dmesg | tail
[ 82.130904] EXT4-fs (sda): bad geometry: block count 122096646 exceeds size of device (122096381 blocks)
my hard disk has a block count greater than the size of my device. I've done my background searching on this and tried a command line utility I've never heard of before:
Code:
# sudo e2fsck /dev/sda
e2fsck 1.41.14 (22-Dec-2010)
The filesystem size (according to the superblock) is 122096646 blocks
The physical size of the device is 122096381 blocks
[code]....
this is as far as I've gotten. This drive holds over a decade's worth of work for me and is extremely valuable. I really didn't think that the Ubuntu upgrade process would mess with this drive, seeing as the Ubuntu install was contained on an entirely different drive. What is it that I need to do to restore my drive to working status?
Found the below from RedHat Knowledgebase
The Completely Fair Queuing (cfq) scheduler in Red Hat Enterprise Linux 5appears to have worse I/O read performance than in version 4. It appears as though the Completely Fair Queuing I/O scheduler (cfq) has a regression and thus exhibits reduced read-side throughput which can affect performance for both local and NFS mounted file systems.
One way to mitigate this is to set the cfq's slice_idle parameter to zero. To change this value, execute the following command echo 0 > slice_idle in the /sys/block directory appropriate for your situation, as shown below:
echo 0 > /sys/block/hda/queue/iosched/slice_idle
We are using NFS file systems in RHEL 5.3. I would like to know how to find which /dev/Device is being used by the NFS file systems, so that I could try setting the slice_idle to '0' to see if there is any difference in performance? In /etc/fstab I only see the actual NAS volumes for the NFS file systems.
When trying to run a program, from Gnome terminal, for a device connected to /dev/ttyS0 (COM1), I get a segmentation fault. I think the terminal may not want to leave the connection open for some reason. Do I first need to mount the device somehow?
View 2 Replies View RelatedWhere's the log where I can read mounting errors?
View 1 Replies View RelatedIf the filesystem is mounted with noatime option does it influence find -atime behaviour? I tested and it looks that find is able to see access time but why should it if mounted with noatime? Or maybe it depends on the type of filesystem (I`m using XFS)?EDIT: Looks the answer is [URL]htmlIf a file system has been mounted with this option, reading accesses to the file system will no longer result in an update to the atime information associated with the file like we have explained above. The importance of the noatime setting is that it eliminates the need by the system to make writes to the file system for files which are simply being read. Since writes can be somewhat expensive, this can result in measurable performance gains. Note that the write time information to a file will continue to be updated anytime the file is written to.
View 1 Replies View RelatedI tried to mount my CD Rom drive and got this response: "mount: can't find cdrom in /etc/fstab or /etc/mtab"
I did see the CD Rom drive briefly after I upgraded from 10.04 to 10.10 but I couldn't access the drive and when I logged back in.
Is there some file in Linux that enumerates and describes mount options for file systems like /etc/services describes ports?
View 2 Replies View RelatedI'm trying to mount a custom device node for each usb port of my pc. For example: Every pen drive connected to my usb 1-1.2 will be called /dev/usb2 and mounted on /mnt/usb2, on usb 1-1.3 port the device node will be called /dev/usb3 and mounted on /mnt/usb3.
I'm using an embedded linux, the device handler is mdev. Editing mdev.rules I'm able to manage new devices and write special rules for them (on /bin/hotplug.sh I can mount the /dev/udisk device on anywhere I wanna):
Code:
# This will be called after scsi emulation, so the
# new device (sda1, sdb1 ...) will be managed by /bin/hotplug.sh
mmcblk0p10:00600=sdcard */bin/hotplug.sh
sda10:00600=udisk * /bin/hotplug.sh
[Code].....
Is there anyway to change scsi emulation configurations or code? I want to call my pen drive on my way (/dev/usb1 instead of /dev/sd*)!