CentOS 5 :: Extra Root Filesystem Folders For Mounting Device
Oct 26, 2009
I was looking at the root filesystem folder for mounting a device when I noticed extra folders. I'm using an encrypted filesystem so I'm not sure if it's that, a break in or the default Red Hat layout. I searched these forums and Google to no avail on extra folders. The root system contains the following:
bin {fda00e13-8c62-4f63-9d19-d168115b11ca} media opt selinux usr
boot home misc proc srv var
dev lib mnt root sys
etc lost+found net sbin tmp
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Jan 22, 2010
An old machine in our office, running Ubuntu 6.06 all of a sudden will not boot up. I get the following info during boot:
Uncompressing Linux... Ok Booting the kernel
mount: Mounting /root/sda1 /root failed: No such device
mount: Mounting /root/dev on /dev/.static/dev failed: No such file or directory
[code]....
I haven't changed anything on the system as far as I'm aware, and I ran some HD diagnostics and everything seems fine. however when I try to mount the drive with the following command:
sudo mount -t ext3 -o rw /dev/hda1 /mnt
I get the following error:
mount: wrong fs type, bad option, bad
superblock on /dev/sda1, missing code
page or helper program, or other error
In some cases useful info is found in
syslog - try dmesg | tail or so
I ran fdisk -l and it says the partition type is Linux. The output after running dmesg | tail :
[12207.483801] init_special_inode: bogus i_mode (101)
[12207.483809] EXT2-fs: corrupt root inode, run e2fsck
[12260.427078] init_special_inode: bogus i_mode (101)
[code]...
Update: After running e2fsck -p /dev/sda1, I get the following info:
/dev/sda1: clean, 142449 / 9584640 files, 5402711 / 19161520 blocks
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Jan 4, 2011
Anybody know if its possible to add the root filesystem to the favorites in files and folder in ubuntu 10.04 nbr?
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Jun 18, 2010
my friend using XP and it was closed because he didnt activate it . he want to try Linux , i adviced him to use UBUNTU 10.10, but after we order the boot we got a loading screen for ubuntu then this error appeared
Quote: busybox v1.15.3 ( ubuntu 1:1.15.3-1ubuntu5) built-in shell (ash) enter 'help' for a list of built-in commands. (initramfs) stdin :I/O error mount: mounting /dev/loop0 on //filesystem.squashfs faild: no such device can not mount /dev/loop0 (/cdrom/casper filesystem.squashfs) on //filesystem.squashfs udevd[75]: worker [171] unexpectedly returned with status 0x0100 udevd[75]: worker [171] failed while handling ' /devices/virtual/block/loop0'
i change the cd to another one but an error was changed to :.............
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Nov 7, 2010
my friend using XP and it was closed because he didnt activate it . he want to try Linux , i adviced him to use UBUNTU 10.10 ,but after we order the boot we got a loading screen for ubuntu then this error appeared
[code]...
also , the labtop cannot boot from usb coz no option for that in BIOS. what can i do to solve each problems?
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Jul 28, 2010
I have installed live cd on usb pendrive. Everything works great. How can I find out which device driver it is using? Where are the device driver files stored? How do you specify the device driver when mounting a device?
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Jun 16, 2010
I've upgraded my squeeze box to linux kernel 2.6.32-5. But it shows mounting "here is the uuid of / " on /root failed: Device or resource busy while booting.Here is the menuentry of linux kernel 2.6.32-5.
[code]....
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Apr 13, 2011
Recently I installed a Linux distro (Pardus) which boots using initramfs. I am completely novice here. In the former configuration I used lilo to boot OpenBSD, Debian and W2k (it is easy for me to configure lilo to boot OpenBSD). But initramfs is a something completely new for me. As I understand it is a virtual file system with a standard directory tree and the information stored on that system is used (to boot the kernel?) to mount the true (physical) root device. The first question is how to properly describe a system (kernel image) booted with initramfs in the lilo.conf.
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Aug 27, 2010
an idea what might be wrong with fs 0x06 FAT16? I have a mobile, Sony Ericsson K750i, which was mounted in previous distributions without problems (up to 11.1). Now I use 11.2 and I am unable to mount it. I tried to do it via yast, but it says "non-existing or uknokwn file system" even it was recognized as 0x06 FAT16. I read that this fs is outdated, however still supported.
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Mar 26, 2011
I'm running CentOS 5.2,on a 64-bit x86_64 Linux machine with kernel version 2.6.18-128.el5 smp. I appear to have version 2.9.4 of xfsprogs. I have a 22TB xfs filesystem ,Yesterday, the hard disk is full, today released a 7.7T disk space.But still can not write to new file. software ambience:
[root@Production data5]# uname -a
Linux Production 2.6.18-128.el5 #1 SMP Wed Jan 21 10:41:14 EST 2009 x86_64 x86_64 x86_64 GNU/Linux
[code]....
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Apr 5, 2009
today I upgraded (yum update) one of my Dell Poweredge Server from 5.2 to 5.3. After rebooting the system first seems to start normal but then the following Error Messages appear:
Apr 5 14:28:26 srv_1 kernel: I/O error in filesystem ("dm-0") meta-data dev dm-0 block 0x668000008 ("xfs_trans_read_buf") error 5 buf count 4096
Apr 5 14:28:26 srv_1 kernel: attempt to access beyond end of device
Apr 5 14:28:26 srv_1 kernel: dm-0: rw=0, want=27514634256, limitfs]
[code]....
Booting with a rescue disk and doing a xfs_repair solves the file system Problems but moved a lot of files ( at least /usr/bin and /usr/lib completly) to "lost+found"... I tried the update with a spare 5.2 Server (different Hardware), and ended up with exactly the
same effect and error message. Both systems are running XFS as root File system on an LVM Disk.
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May 19, 2009
Ive setup a filesystem on a RAID 0+1 and am looking at moving root filesystem from a single disk to the new one. I could not install CentOS on mirrored filesystem as the RAID card did not have a pre-built driver for CentOS 5.3, so I had to compile the driver after installing the system.
What Im going to do now is:
1.Mount the new mirrored filesystem under /root1
2.use find | cpio to copy everything from the existing / to /root1
3.use grub to create a boot record on /root1
4.edit /root1/etc/fstab to point / to the new disk
5. reboot the system and keep my fingers crossed
Is this the way to go? Am I missing anything?
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Jun 27, 2009
I have successful tar an existing CentOS 5.2 partition from Fefora10. The idea is to move a working CentOS 5.2 reside in an internal hard drive to a portable hard drive. I know how to edit a stencil in menu.lst to boot the clone CentOS5.2. During boot, I encountered
Red Hat nash version 5.1.19.6
mount: could not find filesystem /dev/root
setuproot: moving /dev failed No such file or directory
setuproot: mounting /proc: No such file or directory
setuproot: mounting /sys: No such file or directory
[Code]...
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Jun 17, 2011
I had a LiveUSB of CentOS 5.5, so I decided the install it.With no installer,I just copied the files to my hard drive.his was in a multi boot with Windows 7, Ubuntu 9.10, and FreeDOS.I updated GRUB2 and it detected CentOS. I loaded my entry and it failed to mount the root filesystem.I took the initrd0 file from the LiveUSB syslinux folder and added that ramdisk to the entry. Now it finds the root filesystem (/dev/sda9 as Ext3).But it fails shortly after loading /sbin/init. It talks about an init error where it says "File not found!!!".The previous lines involved umounting old filesystems, like /dev.
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Jan 22, 2011
i want to give some permission to non root users so that they can mount drives without need of root password.
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Dec 22, 2009
CentOS 5.3 has been running fairly good except for a slow ethernet connection so I thought I would upgrade to CentOS 5.4 to see if that improved things. I had previously changed fstab and menu.lst to use UUID instead of LABEL in order to insulate myself from partition label changes I wanted to make. This worked fine in CentOS 5.3. When I attempted to upgrade from 5.3 to 5.4 using the installation disk and telling it to upgrade rather than do a new install, the installation correctly found my root partition as /dev/sdb8. When I proceeded with the upgrade I received the error:
"Error mounting device UUID=cee298a0-9c47-4a3a-ac84-23db4d20edd5 as /. No such file or directory. This most likely means the partition has not been formatted."
But of course it has been formatted and is my / partition running CentOS 5.3 as I type. how to fix this to get CentOS 5.3 upgraded ? Di I have to use LABEL in fstab and menu.lst for my partitions,or perhaps just for my root partition ? Any other ideas why this is failing ?
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Mar 22, 2011
I have added CentOS5.5 x86-64 to a linux box that already contains installations of Ubuntu 9 and SL 5.2. Grub2 was installed with Ubuntu and is on the MBR of the disk. I did not install grub with anaconda/Cent. Grub update in ubuntu finds the Cent install and addes it to the grub.conf, and Cent appears in the grub menu at boot. If I select Cent, I get the following error.
VFS: Cannot open root device "sda7" or unknown-block(0,0)
Please append a correct "root=" boot option
Below is the output of boot_info_script, which gives the relevant boot file data. There are still grub conf files on the SL install, but grub is not installed there anymore.
Boot Info Script 0.55 dated February 15th, 2010
=> Grub 2 is installed in the MBR of /dev/sda and looks on the same drive in partition #6 for /boot/grub .....
sda3/boot/grub/grub.conf:
# grub.conf generated by anaconda
# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You do not have a /boot partition. This means that all kernel and initrd paths are relative to /, eg.
# root (hd1,2)
# kernel /boot/vmlinuz-version ro root=/dev/sdb3
# initrd /boot/initrd-version.img
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Mar 27, 2010
When I try to boot to OpenSUSE I get the following error during boot-up: unknown filesystem type 'reiserfs' could not mount root filesystem - exiting to /bin/sh$
This only started happening quite recently - before this I could boot to Linux quite happily.
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Mar 17, 2009
On our network, we authenticate our users via LDAP and use autofs to mount their home directories. This works fine in Fedora 8. However, in Fedora 10, when the user logs in, it also mounts the home folders of the users that previously logged onto the system as well. This is what I see when I login as "user1" on Fedora 10
[Code]...
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Oct 21, 2009
I just noticed, on both of my CentOS 5.3 servers, within grub, root shows (fd0)device.map = (hd0) /dev/sda and nothing else.
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Apr 14, 2010
I left a friend playing with my PC and after she was done there are several extra folders now included at the bottom of the pull down places menu. How do I remove these again?
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Jul 14, 2011
Just the last day or so, I've noticed a long pause when I boot my laptop, with lots of disk activity. dmesg says:
[Code]...
Why would there be a 15-second pause (during which the disk is slammed) between mounting root and mounting swap? During this time I see nothing but a blank purple screen, there are no cycling dots or text scroll. Is this normal and I'm just freaking out over nothing because there's no indicator of progress? GRUB default boot options: quiet splash nomodeset video=uvesafb:mode_option=1920x1200-24,mtrr=3,scroll=ywrap vt.handoff=7
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Dec 21, 2010
My linux distro is CentOS 5.3. Today I edited /etc/sysconfig/readonly-root and set "READONLY" to yes, now my /etc/sysconfig/readonly-root file is like this:
# Set to 'yes' to mount the system filesystems read-only.
READONLY=yes
# Set to 'yes' to mount various temporary state as either tmpfs
[code]...
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Mar 1, 2010
Is it possiable to mount a DVD-RW disk as a RW filesystem so I can do things like ...
mkdir /dev/dvd/mydir
cp ~/.profile /dev/dvd
ls -la /dev/dvd
I would like to use it, even create a partition on it using cfdisk or somthing. Can I do that ? If so, what is the mount command or tools I need ?
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Sep 13, 2010
I have an XFS filesystem (not my root filesystem) that is not mounting.
We had a power failure over the weekend. All but one of our XFS mounts is comming up. Its a large mount (2TB) and I am not seeing errors per se...
But after attempting to mount it, it has been 4 hours and all we see in either dmesg output or in the messages file from the kernel is:
Our mount process is dead and I don't see any disk i/o going on. Am I missing something here on this?
I rebooted the box once earlier and was able mount read-only with norecovery...
I tried xfs_check and it also produced a dead "xfs_df -i -p xfs_check -c check /dev/sdd1"
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Nov 23, 2009
Following a slight dose of vandalism, I have invested in a security camera system.It is basically a hard drive in a box which connects to a couple of cameras.There is also a USB lead to connect it to a PC, and some software that enables Windows to look at the recordings (I can't get it to work on WINE).I was hoping to simply bypass that, and just look at the drive directly, but it seems from here that the disk "doesn't contain a valid partition table".Obviously, the box thinks it has a valid partition table, else it would not work.I was quite surprised: I had assumed the box would have some kind of cut down Linux based system, but if that were the case, you would expect it to use a recognisable filesystem.
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May 8, 2010
To get around the limitation of Ubuntu one only allowing synchronization of files in the home folder and not supporting symlinks I am trying to mount my big file store partition in my home folder as well as in the /media/hd folder where it is usually mounted.When I restart Ubuntu however there is a very scary message saying that my hard drive is not working correctly and when I say "cancel" it loads fine but only one mount point is mounted.
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Apr 3, 2011
The default partition manager which OpenSUSE DVD 11.4 uses (Expert Partitioner) is not creating any logic partition with / mount because another system is already using it, is there anyway to fix this?
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Apr 16, 2010
I am using Ubuntu 9.10 (along with Win xp). I have to authenticate everytime I mount filesystem (My d: , e: drives in windows). Or to connect to the internet (I use mobile broadband) I have to authenticate, also if I have to install something from synaptics I have to authenticate. I know this is good for security but I am the only person using my computer , so is there any way out of this authentication business.
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Jul 7, 2011
I am new to Linux platform and have installed RHEL 6 on my computer. I have gone through different posts on websites regarding how to mount windows drive on to the Linux file system.Here are few results of my trial where results are slightly overwhelming for a guy like me:
1. Mounting NTFS file system using mount commandAs a su-)
" $mount -t ntfs /dev/sda1 /media/MyFilesystem"
Output: error: unrecognised file system ntfs
2. I followed step by step instructions of installing Fuse and ntfs-3g_ntfsprogs but had no luck:
while using this command for the installation of for FUSE-0.9(which I guess prepares files for installation) I am getting this error :
" Command use: ./configure --exec-prefix=/; make;make install"
Error: "Checking Kernel source directory.../usr.src/kernels/2.6.32-71.e16.x86_64...Checking Kernel source version.......Not found "
Configure error: cannot determine the version of the Linux kernel source.Please configure the kernel before running this script.
Woooh , as u can see my Linux version is mentioned in that message so can anyone lemme know whether this issue is because of the incompatibility of Fuse with my version of Linux or am I suppose to make some changes in the command itself.
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