Debian Installation :: One Or More Block Devices Are Holding
May 28, 2013
I'm using a Dell SC440 server for this effort. I started with Debian 6.0.7 32 bit i386 version in mid April and everything seemed to go smoothly until the first boot finished, I wanted to look at the hard drive just to see what storage space was left to work with. The drive was not recognized and I could not mount it. The error message was "One or More Block Devices are Holding /dev/dm-0".
I could not find anything on the debian forums that seemed to relate to the error message so Google led me to the same problem on Fedora, Ubuntu and one other distro. I flattened the machine and restarted from scratch. This time using Debian 6.0.7 AMD64 version. The install went well but I had the same problem with the same results. So I started over several more times before the new Debian 7.0 AMD64 version was released. Under Debian 7.0 I not only get the same error message but I also get a message that my video card is not supported under this new version of gnome and sudo does not work.
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Nov 19, 2009
I am trying to do 1Meg IO to one of the block devices but I can only get a maximum of 512K IO size. I can use the corresponding sg device to get 1Meg of IO. I was wondering if anyone knows why 1Meg IO to a block device is being broken down into 2 512K chunks? I have increased the /sys/block/sdg/queue/max_sectors_kb to 16384, but it has made no difference.
My uname is : Linux virgo 2.6.18-128.el5 #1 SMP Wed Jan 21 10:41:14 EST 2009 x86_64 x86_64 x86_64 GNU/Linux
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Sep 20, 2010
Block Users from USB Drive/Devices and CD-Rom I am using Ubuntu 9.10- the Karmic Koala(64 bit) in my company. I would like to block the users(except Super user) from using USB Drive/Devices and CD-Rom for security resons and to prevent my employees from copying data.
In Users Settings, I tried unchecking some items in User Privileges tab but it didn't work.
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Sep 7, 2010
steps to block usb mass storage devices in linux
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Jun 21, 2015
I have a trackball with only two buttons. And I searched for a way to scroll (wheel simulation) with the trackball.
I already managed to emulate the wheel when holding a trackball button (eg, the right click). I succeed using xinput as described here. But clicking on the right button when rolling with the same hand is not very easy (indeed it is even difficult).
And since I have some media keys (XF86 on the far most left corner of my keyboard it could be very convenient if I can simulate the wheel using a key press.
Unfortunately the evdev option "Option "EmulateWheelButton" allows only to use a mouse button no key from keyboard.
So I found a way to map a keyboard key (in my case the "Audio Player Next Track" shortcut) to the right click using the three steps [URL]..... So pressing the key actually triggers a right click and this works very well ... with two exceptions .
The first one is that I don't know why but this completely disabled my numkeys (the numpad at the right end of the keyboard).
The keys control the mouse. After I checked under the "universal access" I saw that "Control the pointer using the keypad" option was checked. But this could not be a problem and I could be satisfied without the second problem..
Which is that my keyboard simulated right click do not actually enable the wheel emulation since the rightclick should be held down...
When pressing and holding down the real right button of the trackball it works. Even when holding the right click with a regular mouse.
But using my shortcut key I'm unable to generate a keydown event.
Is there a way to map the keyboard key and the mouse button like this :
a key press => a regular right click
a key down => a held right click
a key up => a right click release
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Sep 9, 2010
ok the new version of soundkonverter in maverick seems to me lame beyond belief so i want to hang on to the soundkonverter.3.8 version which was on lucid so i have installed it..MY QUESTION IS is there a way to never have update manager trying to update it unclicking it every time i want to do my weekly update with update manager could be a massive pain in the rear.
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May 11, 2015
There seems to be no documentation on how to automount partitions and USB devices under systemd in Jessie. (Overall, systemd entirely lacks any useful documentation or GUI configuration tools -- all very cryptic and hidden.)
I created custom files to enable automounting. I put them in /etc/systemd/system -- this may not be the right place, but it works.
Kernel note:
This does not work under the old Wheezy kernel linux-image-3.2.0-4.
To automount my Windows partition so I can access its files, I created:
/etc/systemd/system/media-windows.mount
The name of the file must match the mount point -- in this case, /media/windows
My file notes the device and file type, plus an fmask option so all the Windows files don't seem to be executable:
[Unit]
Description = windows mount to /media/windows
[Mount]
What=/dev/sda1
Where=/media/windows
Type=ntfs-3g
Options=fmask=111
[Install]
WantedBy=multi-user.target
The file ownership must be root.root. Apparently it doesn't need to be executable.
After creating, enable with:
sudo systemctl enable media-windows.mount
and it will mount on the next boot.
I read elsewhere that the before running the enable command you should run a start command:
sudo systemctl start media-windows.mount
but that didn't work for me.
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Oct 11, 2015
Installing stretch stops at detecting network devices. This is an attempt to install stretch over the top of Windows 10 on a Toshiba Radius 15 with 2 each USB2 ports and 2 each USB3 ports, and no RJ-45. Its wireless is based upon the Intel 7265. Just before the presentation of the wireless list, the system reports the need to install non-free:
iwlwifi-7265D-9
iwlwifi-7265D-10
iwlwifi-7265D-11
iwlwifi-7265D-12
and asks for media. Whether I respond yes or no, the driver selection screen comes up. [I have not been able to find those four specific files on the Internet.The network card screen comes up, I select the Intel recommended firmware iwlsifi, but the page just recreates itself and waits for a new selection. If I select either 'none' or 'not listed', the installation fails saying there is no network card.I have obtained from Intel their suggestion as of Aug 2015: iwlwifi-7265-ucode-25.30.14.0.tgz.I placed this on a USB stick in a subdirectory labeled 'firmware'. This was built from Windows 7 on a FAT32 file system.
There is also a Dynadock docking station that connects to the Toshiba via a USB3 cable. Besides video, USB,and audio, this has an Ethernet port. I have tried this connected to the laptop but it also requires a driver. I have placed that driver on the firmware directory of the USB also.
Are the four files listed above somehow inside the iwlwifi driver tgz?Is there a way to get the docking station drive to load so I can use its Ethernet port?
I have used Rufus to build the stretch USB from Windows. I do have a a Linux box I built with the same USB. I would use it but so far, I only have a command line on it and I have not figured out how to access debian.org to download the installation files nor how to put that on the stick.
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Jul 30, 2011
I used make-kpkg to generate bzImage from 2.6.39-3-686. After update-grub and booting the new vmlinuz system. I get:
"kernel panic - not syncing:
VFS: unable to mount root fs on unknown block(0,0)".
grub.cfg shows new entry
'linux/boot/vmlinuz-2.6.39.3-686 root=/dev/sda1 ro quiet'
but previous working shows
'linux/boot/vmlinuz-2.6.32-5-686 root=UUID=210a363d-c0ed-4005-b6e8-bbc
aeb7abe54 ro quiet'
Am I missing a step? (or two?). Is it possible to do this from 2.6.32? Currently running Debian-6.0.2.1-i386-DVD-1, Squeeze, /release/current/ 20110626-15:45 on a SATA 1T hd.
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Oct 4, 2010
I am trying to install debian on my windows PC but am receiving some errors with it. I have downloaded "debian-506-amd64-DVD-1.iso" from debian website and am seeing that the md5 sum is correct. I am getting following error when I choose Graphical Install or install.
[ 1.480788] crc error
[ 1.569788] kernel panic -not syncing:VFS: Unable to mount root fs on unknown block(253, 52)
Description of my PC: I have 2 hard disks
1. IDE hard disk (80 GB) -> windows is on this drive
2. SATA hard disk(250GB) -> I intend to install debian on this drive.
3. MSI motherboard & AMD 64 processor with 1 GB RAM.
4. NVidia external graphics card based on AGP slot(256 MB)
EDIT:: This time I got one more error message prior to the 2 shown above [some number] PCI:Cannot allocate resource region 0 of device 0000:00:00.0
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Jul 22, 2011
I'm trying to install wireshark on Fedora(latest version with gnome3) and I keep getting the above error.
I keep killing the offending process after finding it's pid using "ps aux | grep yum", but the same process spawns again with a different pid. root 1605 0.0 3.4 54424 26228 ? SN 10:51 0:02 /usr/bin/python /usr/share/PackageKit/helpers/yum/yumBackend.py get-updates none
How can I properly kill this process, or use yum to install wireshark properly?
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Mar 5, 2010
I currently use a laptop (win vista was the original OS) and I decided to get rid of it. So I tried Ubuntu, bam, no pointer, I changed yesterday for Kubuntu and the same problem goes on, invisible pointer. The mouse is perfectly working it's just I can't see it on the screen. To get even worse and make me want to throw my computer through the nearest window, with kubuntu I can't use the same trick as with ubuntu, I mean I can't locate the mouse by holding the 'ctrl' key.
It's a very common problem with VIA/3 chipsets (which is the one I have) and I also read it's often a bug with OpenChrome and to fix it I may have to modify the xorg.conf. But here's another issue, my xorg.conf file isn't in the same folder as for most of the people: instead of being in /etc/X11/xorg.conf, it's in /usr/share/X11/xkb/rules/xorg.conf, and, which is most, it ain't even named xorg.conf but xorg! Besides, I can't modify the file to enter a command that may be a solution because when I try to save my modifications, it tells me I haven't the permissions and I can't get it to run in root.
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Mar 24, 2010
I just installed Ubuntu 10 as a dual boot with Windows 7. I was using it for a couple of hours (and really liking it) when all of the sudden the Ubuntu Software Center stopped responding and I was unable to click anything.
After logging out of my account I noticed I had proper mouse function. I restarted the system and noticed the same thing happening when I logged into my account.
Basically what has happened is that I have to hold the Shift key down in order to press application buttons, like "OK" and "Cancel".
If I click on a link in firefox nothing happens. I need to hold shift and left click to follow the link, which of course opens the link in a new window.
If I try to right click on the desktop nothing happens unless I hold shift.
I looked through the mouse and keyboard settings and did not notice anything odd.
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Dec 18, 2010
About a week ago I did a fresh install of Maverick on somebody else's laptop. Everything was fine at first, but a couple of days ago the person contacted me saying that they weren't able to move or resize windows anymore. (The only thing that does work with respect to moving a window is initializing the action by pressing Alt+F7.) Later we found out that they also can't drag and drop files or use the mouse to drag scrollbars up and down. So basically, they can't do anything that is usually done by holding down the left mouse button and moving the pointer. I've already tried the following things to make it work again:
- playing around with the mouse settings
- checking in CCSM whether the 'move window' and 'resize window' plugins were enabled
- setting desktop effects to NONE in the visual effects tab in 'appearance'
- using compiz fusion icon to (1) reload window manager and (2) switch from compiz to metacity for window management
- deleting folders containing GNOME settings from home folder (.gconf, .gconfd, .gnome2, .gnome2_private), logging out and back in afterwards to automatically create new configuration files
I've been doing a lot of googling about this but I'm running out of ideas. Most people (there don't seem to be that many) that have had a similar problem are saying that it's got something to do with compiz, and disabling it solved the problem for most of them. But in my case - no dice.
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Feb 10, 2010
I have Fedora 12 installed on an external harddrive (USB) and have it configured the way I want. Inside my laptop I'm working on I have a Win 7 installation. My plan is to slowly migrate to Fedora and only use Win 7 when needed, so far so good..
I shrinked the partition on the internal drive holding using Win 7's built in tools and would like to clone my USB installation to the new partition I can now create, I work a lot with Macs in my line of work and there I always use Carbon Copy Cloner to make bootable backups, works like a charm..
As far as I know CCC uses rsync which is available for Linux as well so I guess I could use that? I plan on editting the Win7 bootloader later on to make it possible to boot from the new Fedora partition.
How would I go about it? The internal drive is GUID (or is it GPT?) formatted and loosing the Win 7 installation isn't an option of course.. All I could find were commandlines to backup certain folders or entire drives but I only want to backup my partition onto a different partition..
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Mar 18, 2011
I have recently installrf MailScanner on my CentOS 5.5 and followed this instruction [URL] However, my postfix doesn't seems to be working after the installation. All the emails sent (using squirrel) mails are being held at /var/spool/postfix/hold
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Mar 4, 2010
I am having trouble with the code below, I'm trying to check if a variable holding a character is a hyphen.
Code:
#!/bin/bash
$char="-"
if (( "$char" == "-" )); then
[code]....
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Oct 31, 2010
I have an issue running the openSUSE 11.2 liveCD KDE on a Dell Vostro 3500. It boots fine to command line. It seems to boot fine to KDE (I assume it doesn't hang cause the power button turns the laptop off without holding it). However the only thing I can see is a black screen. I've checked the CD with the tool included to the CD. The hardware of the laptop seems to be fine as well
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Mar 2, 2011
I first noticed this problem when trying to play a first person shooter game. If I hold a key down such as "w" the mouse glitches and moves incredibly erratically when I try to look around. This happens outside of the games as well. What is the solution for this?I'd really like to be able to play an fps game.I have tried disabling compiz as well as turning off the "disable trackpad while typing" option as well.
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Jun 15, 2011
NOTE: compizconfig manager is not suitable for ubuntu 11.04 with unity,works fine with 9.10 and 10.10.
Ubuntu enables "Desktop Wall" by default. By holding Ctrl-Alt keys and pressing the left-arrow or right-arrow key each time, it slides through desktop workspaces horizontally for you to choose one to work on. Alternatively, you can change this to a "rotate cube" effect. Go To System > Preferences > CompizConfig Settings Manager.
Select "Desktop" from the left panel.
Tick "Rotate Cube".
Select "Enable Desktop Cube" as this plugin is required by "Rotate Cube".
Select "Disable Desktop Wall".
Immediately you can rotate your desktop workspaces in this way holding down Ctrl-Alt keys, EITHER press the left-arrow or right-arrow key OR left-click the mouse and drag it to left or right.
if there is no compiz manager in your system,download it.. type :sudo apt-get install compizconfig-settings-manager ..
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Jul 22, 2011
i got 2 live cds with 5 distros on each. i decided to test the distros on my macbook but I couldn't boot from the Live CD using reboot and holding down "c", so I selected the Live CD as my startup disk. so i experimented with fedora, tested mint, and played with pradus.
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Sep 2, 2010
on desktop, my mouse works normal. i can open programs normally, BUT, when i try to click inside some window, pointer turns into closed hand, that symbols dragging. i can move the window that way, but can't click anything except when holding shift, alt or ctrl.it's probably my fault, but i don't remember pressing anything different than usually. oh, and, it started in the middle of the session, i tried to reboot several times, tried recovery too, after that updated but no help there.i was looking for solution on google but can't find anything for days, i cant think of anything but reinstallation
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Jul 17, 2010
I have successfully installed squid proxy server for my college . Then i used proxy authentication for 10 users using htpasswd command in a simple text file with encrypted password. It works fine.
My request is that I have to manage 2000 usernames of students for authentication . How can i do this ?
Is that single text file capable of holding 2000 usernames and password for authentication ?
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Oct 6, 2009
My name is hentry varghese.i want to know how to block all websites and then allow only one.fof example:"www.gmail.com".please give me the complete commands one by one to do that.
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Jun 5, 2010
I don't have an opportunity to check it out now... Does Debian 6 testing mount inserted CDs/Flash-drives automatically like Ubuntu does? Or the only way to mount them after inserting is to use mount command?
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Mar 22, 2011
I've just got the multi-touch driver work with ubuntu 10.10 64bit on my alumni macbook. Now I can do scroll and right click with two fingers. However, one thing I really miss is the ability to move the cursor while holding the 'big button', I want to drag windows/icons with one finger holding down the physical button, and another finger dragging around.
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Feb 3, 2016
Is it possible to block download file from sambashare folder ?
For example pdf file frem debianInfo est.pdf I wat to provide only for read from this share.
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Oct 27, 2015
I use Debian 8.2 without DE. I can mount removable devices (USB sticks, external HDDs) manually using mount/umount to specific folders under /mnt or /media. But I want them mount automatically when plugged-in as /media/disk-label. Also I want to be able safely remove already mounted devices without data loss.As I understand, I need to create custom UDEV rule and associate it with mount/umount scripts. E.g. mount script
Code: Select all#!/bin/sh
mount_point=$ID_FS_LABEL
if [ -z $mount_point ]; then
mount_point=${DEVNAME##*/}
fi
# retrieve gid of the plugdev group and set it as owner of mountpoint
plugdev_gid="$(grep plugdev /etc/group|cut -f3 -d:)"
if [ -z $plugdev_gid ]; then
[code]....
Is this safe and correct approach or it is better to use something else?
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Apr 16, 2010
I would like to create a logon script, for specific user, under ssh connection, to backup several directories in a USB device; this backup will run when the device was plugged in and the user logs in server. My knowledge of linux isn't very deeply now, and some questions are in my head. I would like to make this in a chroot jail, and the user log in through ssh connection doesn't have to make nothing, the logon script will mount the USB device and make the backup (using rsync or whatever), and exit the ssh connection when it finish.
But the questions are:
- is possible to a user in a chroot jail mount a USB device?
- from this jail, the directories outside of the jail could be available or need to be bind or something for this task?
- it will be better to "jail" all the directories to backup, inside de chroot path (almost would be samba sharing for Windows clients)?
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Apr 24, 2016
I'm trying to assign pci devices to pci-stub at boot before any of the kernel drivers can access it. I've successfully managed to do this on a Ubuntu system but I cannot get it to work on Debian. I've set pci-stub to load as a module in /etc/modules. I've then tried both these methods:
Add pci_stub ids=8086:100f to /etc/initramfs-tools/modulesSet GRUB_CMDLINE_LINUX_DEFAULT="pci_stub.ids=8086:100f" in /etc/default/grub.
Both give the same result after updating grub/initramfs and a reboot: when I check "dmesg | grep pci-stub" I get:
Code: Select all[ 1.522487] pci-stub: add 8086:100F sub=FFFFFFFF:FFFFFFFF cls=00000000/00000000
The actual device id's are not claimed by stub. Same for lspci -v which shows that the devices are still using the kernel drivers.Again, this configuration works on Ubuntu. Also issuing the following commands successfully assigns one of the devices to pci-stub but I need it to work on boot before the kernel drivers load:
Code: Select allecho "8086 100f" > /sys/bus/pci/drivers/pci-stub/new_id
echo 0000:02:02.0 > /sys/bus/pci/devices/0000:02:02.0/driver/unbind
echo 0000:02:02.0 > /sys/bus/pci/drivers/pci-stub/bind
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