CentOS 5 Hardware :: Error Message : Mount: /dev Is Not A Block Device
Sep 13, 2011
I virtualized a PC with VMware vCenter Converter. But when I boot my virtual PC, I have an error.I found this link but I can't mount /dev, /sys and /proc. I have this error message : mount: /dev is not a block device.
I just downloaded an iso of the latest CentOS dist (5.3) and burned it to disk. I booted from the CD and received the following error: Memory for crash kernel (0x0 to 0x0) not within permissible range Illegal mode for this track or incompatible medium -- (asc=0x64, ascq-0x00) The failed "read 10" packet command was: Buffer I/O error on device hdd, logical block 176935
(This error message repeats for another 9 or 10 times then it says the following) Red Hat nash version 5.1.19.6 starting Setting up new root fs (Then there are some unmounts which are old /dev, /proc, /sys. At this point a series of steps begin).
Setting Clock Starting udev Loading default keymap (us) Setting hostname local host.localdomain Setting up logical volume management Checking file systems
These are just some of the steps that appear after the above error is displayed, all of the steps that load have an ok status. After those are completed I get to a text prompt - localhost login: At this point my keyboard does not seem to respond, pressing enter or any of the other keys seems to have no effect. I noticed that during the load process I could toggle the light for caps and num lock, but at the login screen it does'nt work. So at this point I'm not sure if I'm having a technical issue or if its just another case of an user error.
I want to keet some data on windows dir. I have tried the below command and giving the below error. [root@xyz0044 ~]# mount -t cifs //10.48.64.52/jata -o username=domainv.kumar3,password=xxxx /mnt/backup mount: block device //10.48.64.52/jata is write-protected, mounting read-only mount: cannot mount block device //10.48.64.52/jata read-only
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
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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?
I am trying to debug the issue of a desktop that has for the last two weeks started having kernel panics at boot time. This machine has been running flawlessly for the last 8 years, and has had three OS upgrades. I am using memtest to try to understand the issue. The following is part of the memtest output: Reading all physical volumes Buffer I/O error device hdc logical block 0 Buffer I/O error device hdc logical block 15
Illegal node for this track or incompatible media (asc=0x64 ascq=0x00) The failed "Read 10" packet command was /dev/hdc: read failed after 0 of 4096 at 0 Input/output error and similar set of mesaages After this udev checks correctly, and hardware, storage and audio are initialized However sometime in the middle of the boot process, a kernel panic occurs with message Kernel panic -- not symcing : Fatal exception in interrupt
what 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 have 2 hdds, with encrypted / and /home. Besides there are four other (encrypted ext4) partitions I use rarely. In Fedora 11 at boottime I gave the luks passphrase for / and home and the system booted as intended.
Whenever I needed those extra encrypted partitions I mounted them in Nautilus. Now, in Fedora 12 at boottime dracut tries to open all the encrypted partitions, / and /home are mounted fine, but opening all the other partitions gave the following messages in messages.log:
Quote:
dracut: luksOpen /dev/sdb6 luks-02a0e706-a26f-4019-a2a0-88a0366a994d kernel: Buffer I/O error on device dm-0, logical block 124 kernel: device-mapper: ioctl: unable to remove open device temporary-cryptsetup-304 kernel: Buffer I/O error on device dm-0, logical block 124 kernel: Buffer I/O error on device dm-0, logical block 124
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...and these messages are repeated with the other partiitions, and the boot time takes very, very long. How can I tell dracut to ignore those extra encrypted partitions at boottime?
i have a inspiron 1520 laptop which is starting to slow down some so i thought linux would help because all i do is internet use, so i download it from another computer and mount it to a usb flash drive like the site says, (netbook remix latest version) then i put it in my laptop and it loads all the way and i press try and after about 10 minutes of loading it lets me try. so that was ok really slow but i thought id install it to hard drive to see if it improved speed. so the next time i start my laptop i get Buffer i/o error on device loop0 logical block xxxxxx so i redo the usbflashdrive no errors switch usb ports and same thing, ive done the switch usb ports and redo the flash drive about 4 times im really getting mad at linux before i even have it installed.
I'm trying to upgrade my kernel. When i get to the step where i should build the img for grub (i guess the command below is doing that) I get this error: yaird error: bad device link in /sys/block/sda (fatal)Since I installed debian using a USB drive, HDD1 was /dev/sdb and HDD2 was /dev/sdc, the USB was /dev/sda. Is there a way to force mkinitrd.yaird to build the img for /dev/sdb?
Create symlink /dev/root and then exit this to continue the boot sequence.
Buffer I/O error on device sr0, logical block ******* sr 4:0:0:0 [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK sr 4:0:0:0 [sr0] Sense Key : Medium Error [current] sr 4:0:0:0 [sr0] ASC=0x10 <<vendor>> ASCQ=0x90 end_request: I/O error, dev sr0, sector 1395920 Clocksource tsc unstable (delta = -499902943 ns)
loops that during install. new hard drive fresh out of box. WD 320GB 7200 Toshiba Qosmio intell core duo i've installed with this same disk before previous hard drive died. installed over windows vista. this time im trying to install solo no windows disk to reinstall with, F10 only. I've tried other distros as well, Mandriva one 2009, Dreamlinux, and this one. i've suspected hard drive controller went out but i can format and partition the drive. also the cd/dvd drive is bad but im booting from cd fine. tried removing the cd drive and booting from an external usb cd rom, same errors.
im about to deploy and need my computer up and running ASAP. 7 months no entertainment is not good. when i use a linux boot disk from Ultimate Boot Disk (UBD) i get an error of - hda status no response and something about invalid heads dreamlinux pushes past the error till i get the error about cant start x server. about my graphics
I had found the following error messages one of my Linux server. the file system using for this partition is EFI GPT. Is this cause because of RAID controller incompatibility or Driver mismatch? PHP Code:
I have been using my desktop as a dual boot machine for several months now. The primary hard drive with windows on it died, and since we have been using ubunto 9.10 exclusively, I just removed the dead drive, changed the jumpers on the secondary drive to primary and did a clean install on the drive which presumably formats the disk before installing. When I try to boot from the hard drive i get the following message:
ERROR: no such device 2eb48bcb-7bb4-4080-b04d-fc32dec8c252
I have recently set up an ubuntu installation on an old PC. After some fiddling with both it, and the windows 7 machine, I have managed to share all of my drives. However, when attempting to access them from ubuntu, only 2 of the 4 hard disk shares will mount, with the other 2 failing with a Unable to mount location, failed to mount windows share error message.
i've just burned a livecd (fedora 11), but it doesn't work correctly.it says after i hit boot:
BUFFER I/O error on device sr0 logical block 352328
and then something else, which is similar so i didn't write it down.i read on bugzilla, that is should try to append the boot command with pci=nomsi, but it doesn't work for me
I downloaded the ubuntu-9.10-desktop-i386.iso file from the website, extracted it, and ran the Wbiu.exe file - it prompted to get my info and then restart. Upon restarting, I then had the choice to run Windows or Ubuntu, and I've been running Ubuntu ever since.
I ran into some speed-bumps. Upon entering the Ubuntu option at my start-up prompt, I go to another prompt asking me to choose from: Ubuntu, linux 2.6.31-20 Generic Ubuntu, linux 2.6.31.20 Recovery mode Ubuntu, linux 2.6.31-14 Generic Ubuntu, linux 2.6.31-14 Recovery mode Windows 7 installer Windows Vista installer I've been choosing the very first one, the 31-20 generic, but just this morning after downloading some programs from the Synaptic and transferring a few Gbs of music, I received this error prompt: Code: [2.879604] Kernel panic -- not syncing: VFS : Unable to mount roof fs on unknown--block (8,2) After that, I've been running the 2.6.31-14 generic installer. I have no idea what any of this means and I've spent time crawling through threads trying to figure it out. I mean, it still WORKS but I just help but think I've done something very wrong. ALERT: SUDO PASSWORD QUESTION
I hope the cautionary sign above has dispelled any annoyed gurus who have answered this question dozens of times before. I've crawled through my fair share of threads concerning this, the best corollary being the following: forum/linux-newbie/157773-solved-sudo-password-errors-usb-internet-issues.html; which, strangely enough, was never really solved. Like the user in that thread, when I access the terminal and type in a command, the next line invariably states "[sudo] password for jacob' -- when I hit enter and type in the long list of possibilities I've read (read: sudo, su, su root, su passwd, sudo passwd, sudo root, et al.), alas, nothing happens but the same statement.
i am just learning about computers and know nothing at all except how to turn it on. i just booted up linux and recieved message: [0800654] Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown - block (8,1)
The external hard drive which contains all my photos and where I backed-up all my important documents is no longer recognized. It is a three month old 500GB Iomage Prestige Desktop Hard Drive.When I plug it in, it is recognised as a USB device, because it shows up when I type lsusb, but dmesg gives this error message.
[19712.013250] usb 2-2: new high speed USB device using ehci_hcd and address 21 [19712.145347] usb 2-2: configuration #1 chosen from 1 choice [19712.147214] scsi25 : SCSI emulation for USB Mass Storage devices
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I popped the disk out of the casing put it on a SATA connect internally and then tried the file recovery programs testdisk/photorec and SpinRite, but both failed because they couldn't recognize the external hard disk.
I am currently running slackware 12.2 on a 25 GB partition. I like to use slackbuilds, but when I try to compile larger tarballs (like abiword, or a patched version of Ghostscript as I did today) I receive an error-message: 'Not enough space left on device'. I think the size of the partition must be big enough (I never got this message when compiling with Linux From Scratch). I think it has something to do with the size of my /tmp directory, but I don't know how to fix this. Is there a way to solve the problem, so that I could be able to use slackbuild-scripts?
I am using 11.3 on one machine and 11.2 on the other (a netbook). 11.4 won't install on either and 11.3 on the netbook fails to install as well.
I am using the same setup as I have always used when both systems ran 11.2 (details below) but now I can only mount a drive in one direction. In the other direction the mount command gets stuck with no error message until it eventually times out. I can ping and ssh the machines from each other without difficulty.
Even in the direction in which the mount apparently works (11.2 mounting a drive on the 11.3 machine) when I try to copy files across nothing actually happens.
exportfs -a was run successfully on the exporting machine, and nfsserver is running on both machines as does nfs client.
The exporting machine is 192.168.1.102 (eeelinux) and the other machine is 192.168.1.101 (nina).
Details: The /etc/exports file on the exporting machine (192.168.1.102) looks like this: eeelinux:/home/naima # more /etc/exports # See the exports(5) manpage for a description of the syntax of this file. # This file contains a list of all directories that are to be exported to # other computers via NFS (Network File System).
when I connect my iphone (3GS, 4.3.3) to Fedora 15 it gives me this error: Unable to mount iphone DBus error org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus). The weird thing: after looking in var/log/messages it appears that it is trying to be used by NetworkManager. And when I lookin NM, i can see iPhone as an ethernet device (cable unplugged).
I have installed ubuntu 10.10 and the Samba addon to configure my shares to my Windows terminals.This is what I got
Firewall off (utf disabled)
Internal Sata /dev/sda1 (EXT4 FS)
External USB HDD /dev/sdb1 mounted at /media/SG1500GB (EXT4 FS)
I have two shares
1. //home/test - Which I can see and access with no problems (can't write to it though even though I set the share as writable?, but, I can read from it). This is available to everyone. My windows terminal can see this folder and access it. This is on my main 80GB internal drive /dev/sda1.
2. //media/SG1500GB/Music. I set this up for everyone full access and I can see it at all my Windows machines but,I can't get into the folder. Windows keeps giving me an error stating network path not found.I also try to access it via the Nautilus (Places/Network/system/music) and get an error message "unable to mount location, Failed to mount windows share". This drive is mounted per the disk utility.
I am not ready to upgrade my Fedora 13 to 14 yet, but I wanted to test some things in 14. So, using the live CD, I installed Fedora 14 under Virtualbox. But some things are not working and the Virtualbox Help files aren't helping. I have added my Fedora 13 /home/jjj/ folder as a shared folder with the name Home_jjj. The instructions say that in Fedora 14 I must mount it with "mount -t vboxsf share mount_point." So (as root in Fedora 14). I used the command "mount -t ext3 vboxsf Home_jjj /media" but I got an error message. I tried varying the command different ways, but haven't hit on the secret mount syntax. I would really just like to add it to Fedora 14's fstab file to make it auto-mount. I have an external monitor, which Fedora 13 sees, but Fedora 14 cannot see it. The main display for Fedora 13 is 1680x1050. Fedora 14 installed itself with 1024x768 as the max. I tried changing it with xrandr -s, but the only resolutions xrandr will take are 1024x788, 800x600 and 640x480. How can I make it at least, say, 1400x1050?
I just having to do a fresh install and get the following message to close after setting up partitions and on clicking write to disk:
Failed to mount "524M Volume" Method "Mount" with signature "ssas" on interface "org.freedesktop.Hal.Device.Volume" doesn't exist.
Only option under message is close button. I'm using Fedora 14 xfce 32bit live CD. The install seems to carry on normally until done but then when I check the partitions I've setup I seem to only have the origonal uneditted default partitions.
I'm trying to install CentOS 5.5 on an old Pentium 4 desktop PC I have, which is not being used for much other than being a MTA, and I want to migrate this functionality onto the CentOS platform for stability (Windows is a perpetual nightmare. I partitioned a spare 20GB to experiment with, and I want to install CentOS into here to play around with first so I can move my files around between Windows and CentOS, until I'm happy all of the stuff is gone, then I can scrub the Windows partition and claim the space for CentOS.
So, I've downloaded and burned the DVD and tried to install. I start the install with no args from the main install menu, and the process goes through some probing and then comes up with the "Welcome to CentOS" menu. I go through this, and then it tries to start X Server. It fails, and falls back to text mode. I get the "Welcome to CentOS" screen again, and then proceed through it. I set my keyboard layout to UK, then this message comes up at the bottom of the screen:
"_X11TransSocketINETConnect() can't get address for localhost:6001: Temporary failure in name resolution"
then on the next line: "Cannot open display :1" If I force the install to text, by typing "linux text" at the first menu, I get about the same way through, but the install just hangs doing nothing, and no disc access to the install disc.
I created a encrypted volume on top of software raid1. These are my steps:
1. Create logical partition on sda
2. Create logical partition on sdb (same size)
3. Change type to partition to 'fd' for both partitions
4. Check that the both partitions are same size and type fdisk -l /dev/sda && fdisk -l /dev/sdb
5. partprobe
6. Make sure there are no remains from previous RAID installations on /dev/sdb by running: mdadm --zero-superblock /dev/sda6 mdadm --zero-superblock /dev/sdb6