Ubuntu Installation :: Maverick Has Its Own Ideas About Drive Device Names?

Dec 15, 2010

I'm trying to install Xubuntu 10.10 onto a machine with 3 hard drives. My drives are (rather, should be) like this:

/dev/sdaX: Windows and Windows apps/games
/dev/sdbX: Data
/dev/sdcX: Blank drive for Linux.

[code]....

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Ubuntu :: Set Workspace Names Missing In Gnome 10.10 Maverick?

Nov 7, 2010

What has happened to the option to display names of each workspace on the lower panel bar?

Normally it was just a case of 'right click' any of the workspace and selecting 'Preferences', setting number of workspaces required and then using the name listbox to name each to desired title. In Maverick only the number of work places can be set; the list of names facility has been deleted from display. The current workspace name displays in the tooltip display as "workspace n", but there seems to be no easy way to change this title.

In 'gconf-editor' under schemas>apps>workspace_switcher_applet>prefs>displ ay_workspace_names it only gives the system message "...can't be edited..."

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Ubuntu Installation :: Windows 7 Install On 2nd Hard Drive Not Seen By Grub In Maverick / Show That?

Jan 23, 2011

I've just installed a second hard drive in my laptop with windows 7 on one drive and Ubuntu on the other. I selected the side-by-side install in the Ubuntu install and let Ubuntu do the rest. Unfortunately Grub isn't seeing the windows install even after reconfiguring grub. However, the windows 7 drive is visible in Ubuntu and all the windows files are there intact.

Does anyone know how I can make grub see Windows 7 so I can boot into it?

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Ubuntu :: Raid5 And Static Device Names?

May 17, 2011

I am setting up a Raid5 and torture testing it. I added two eSata ports to my machine. When a drive is installed in that eSata port and the machine then booted up the device name (e.g. /dev/sdc) is inserted in the middle of my Raid devices. And that is just one example of how the device names can change.I did a search on 'static device names' but I saw nothing directly related to Raid. What I did see were suggestions to create udev rules based on UUID. But that was for single disks, not Raid, where each drive/partition in the raid array appears to have the same UUID.I'm surprised this does not come up in the various Raid howtos because it is impossible to keep a Raid array intact without solving this problem unless the machine is never touched thereafter.

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Ubuntu :: 10.10 Mdadm RAID - Moving Device Names ?

Mar 25, 2011

I'm having trouble with Ubuntu 10.10 and stable device names. When I installed Ubuntu, the root drive was the only one in the machine; it obviously got /dev/sda.

After the base installation, I installed three additional 2TB drives to make RAID-5 array. Ubuntu renamed the root drive to /dev/sdd. While annoying I lived with it.

After creating a single partition set to "Linux raid autodetect" on each drive, I created the RAID-5 array:

Code:

All was going well until a reboot. When rebooting Ubuntu decided to make the root drive /dev/sda this time and now mdadm --detail /dev/md0 reports:

Code:

How to fix the array and make the device names stable?

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General :: Filesystems - Changing Device Names In /dev

Apr 25, 2011

I have many disks and volumes in my system. Some of disks IDE, some SATA.

Volumes on SATA disks cause me problems - I have them listed in etc/fstab, but on every boot, they have different name:

/dev/sdd* becomes /dev/sdb*
/dev/sde* becomes /dev/sdc*

etc. on every boot.

1) Why is this happening?

2) How can I prevent it?

3) If I can't, is there a workaround?

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Ubuntu :: Staticly Assign Device Names (/dev/sda, Etc.) To Specific Hard Drives?

Feb 20, 2011

This is one of those questions where I highly suspect that the answer will be something like ". . .just stinks bein' you, kid."My setup:I have Ubuntu 10.04 x64 (desktop) installed on a computer with a bunch of SATA ports, including one e-SATA on the backBecause of the way the hardware works with these ports, the *external* port is the first SATA port, a second SATA port inside becomes #2, and a cluster of four ports (that can be made into a (ahem!) RAID array become ports 3 through 6.

All ports are configured as SATA (PATA emulation)My boot drive is located on SATA-2 (the inside connector), a four disk "MD" raid array is located on SATA 3-6, and I have an external HD enclosure that I plug into the e-SATA connection.

With all six drives plugged in, they get ordered like this:
/dev/sda - External drive
/dev/sdb - Internal operating system drive (bootable)

[code]....

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General :: List Only The Device Names Of All Available Network Interfaces?

Oct 25, 2010

I want to get a list of all available Network-Device Names on my Linux server. I figured that

netstat -a

would do the job, however netstat produces quite much output:

eth0 Link encap:Ethernet Hardware Adresse 08:00:27:fc:5c:98
inet Adresse:192.168.2.222 Bcast:192.168.2.255 Maske:255.255.255.0
inet6-Adresse: fe80::a00:27ff:fefc:5c98/64 Gültigkeitsbereich:Verbindung
UP BROADCAST RUNNING MULTICAST MTU:1500 Metrik:1

[Code]....

I assume that this can be done by a combination of "cat", "sed" and "grep", but I have simply no clue of how to strip the uneccessary information.

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Hardware :: Block Device Names Change After Reboot

Jan 19, 2011

I built a Raid5 volume with 3 SATA II hard disk drives. Further I have a system disk conected through IDE. During the first setup the IDE disk becomes sda, the SATA II disk sd[bcd] respectively. Now, sometimes the device names change after reboot - why ever... E.g. one of the raid5 disk become sda and so I got an error message during the boot procedure regarding the raid set. Curious, when the system is up and I stop and restart the Raid5 volume it comes up and runs fine. Because I'm currently at work I can't post any more detailed config files at the moment.

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Networking :: Can Eth Device Names Be Correlated To Physical Port?

Dec 1, 2009

I am building a custom RedHat+<our-software> installer iso for our own appliance. I am using Red Hat 5.4. The appliances has two on-board eth interfaces. On the back panel of the appliance, these ports are marked 1 and 2. When I install RH, I find the device names assigned such as eth0/eth1 are arbitrary. I understand this is to be expected with kernels 2.6+. Most of our customers connect their eth cables to the port marked 1 on the back and assume they should configure eth0 to make the device reachable. However, sometimes port 1 gets assigned "eth1". This is not a blocking issue, but its going to confuse our customers and we wanted to make it easier on them.

From reading online discussion boards, I know HOW to switch the assignment of the eth names. However, what I am do not know is whether I need to switch them at all. So I have two questions
1) Is there anyway for me to tell which eth mac corresponds to which port on the back? Since they are soldered on the motherboard and not movable, I would think there would be some way to figure out that x mac address corresponds to the upper port (marked '1' etc).
2) Is there a way to tell this by running a linux command? We need to do this automatically so I need to be able to figure it out at install time from the kickstart post-install or similar.

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CentOS 5 :: Persistent Device Names For ISCSI Disks?

Nov 15, 2010

I have a server wich is connected to an iSCSI storage and gets harddisks from this storage. Sometimes I have to add new disks to this server. Everytime I add a disk and make an /etc/init.d/iscsi restart on the server the disks don't have the same device name as before the iscsi restart.

It should be possible to gave the disks persistent names using udev rules. Now I tried to create different rules in "/etc/udev/rules.d/99-static-iscsi-names.rules" e.g.

# /dev/sdc
KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -s %p",RESULT=="360a98000503355344c4a576864467877" NAME=="sdc%n"
In "/etc/rc.local" I added "/sbin/start_udev" and in "/etc/scsi_id.config" I added the line "vendor="NETAPP",model="LUN",options=-g"

[Code]...

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Ubuntu Installation :: 10.04.1 USB Drive Device Changes After Install?

Sep 2, 2010

I have loaded the Ubuntu 10.04.1 Live CD onto my HP p386i desktop. It loads easily and responds well in the "Try It" mode. I purchased a 16 gb USB Flash drive and did an install from the Live CD. After booting the CD ROM to the window where given a choice to "try" or "install", I inserted my flash drive into the USB port and selected "install". I had my 2 hard drives disconnected. At install point #4 I selected my USB drive and also selected manual partition . The partition displayed as follows:

Partition: /dev/sdf
/dev/sdf1 Type: EXT2 Mount at "/" Size=15,300mg Used=33
/dev/sdf2 Type: Swap Size= 718mg Used= 0

[code]....

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Ubuntu Installation :: Install On Client Device That Does Not Have CD / DVD Drive

Jul 15, 2010

I need to install Ubuntu on a client device that does not have a CD/DVD drive. It's on the same network and I'd like to be able to insert the Ubuntu CD into my desktop linux machine and install the OS onto this other device remotely.Is there way to do this easily? The client device is a barebones. There is nothing on it and I want to use the entire partition for this.

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Ubuntu :: Rename Files On Drive With The Names The Have In Properties?

Nov 11, 2010

i recently restarted my computer so i baked up all my files to my external terabite restarted my computer pluged in my 2 drives and formated the wrong one DAMB so i lost every file i ever downloaded DAMB i used photorec to get it all back but all my files have system names eg f12223/f12224 etc but when i load the files to media player the correct name i displayed in the media player so is there a program i can get that will rename all the files on my drive with the names the have in propertys

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Ubuntu :: How To Sort Folder And File Names On External Usb Drive

May 6, 2011

i recently bought an external 2 TB usb drive and connected it to a philips dvd player. all movies play just fine but I noticed that folder and file names are not displayed on the screen in alphabetical order but in the order they've been copied to the drive.now, i found the way to fix it by using this program: URl...the thing is it won't start in wine.so, is there any way to sort directory tables under ubuntu?

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Hardware :: Adding / Removing Drive Names Changed

Sep 29, 2010

After a couple of years, I decided this weekend to replace my old slackware 10.2 with the latest stable version 13.1 64 bit. The change log tells me that with the new kernel 2.6, the old IDE/ATA system has been removed and the libata is used instead. That /dev/hda become /dev/sda and so on. No problem sofar, however ...

My FIRST hardware configuration was:
One SATA drives connected to the onboard SATA controller [A]
Two PATA drive connected to PCI IDE controller 1 [B & C]
Two PATA drive connected to PCI IDE controller 2 [D & E]
One PATA drive connected to the onboard IDE controller [F]

So initially the system had 6 disk drives. Booting from the Slackware install dvd, I found out that the drives are detected in the following order.
Onboard SATA controller
PCI IDE Controllers
Onboard IDE Controller

And the drives are get names in the following order:
/dev/sda : SATA disk @ Onboard SATA controller
/dev/sdb : first PATA disk @ PCI IDE controller 1
/dev/sdc : seconde PATA disk @ PCI IDE controller 1
/dev/sdd : first PATA disk @ PCI IDE controller 2
/dev/sde : seconde PATA disk @ PCI IDE controller 2
/dev/sdf : PATA disk @ Onboard IDE controller 1
sda upto sde are configured to us with LVM, so 4 disks are added to the volume group.
sdf is where Slackware is installed (sdf1 = swap; sdf5 = /boot; sdf6 /; sdf7 = /usr; sdf8 = /home; sdf9 = /var; sdf10 = /tmp)

Here is the problem:
When a 7th disk is added (another SATA drive @ Onboard SATA controller) then all names are changed like:
sda remains the same
sdb new added SATA drive
sdb -> sdc
sdc -> sdd
sdd -> sdf
sdf -> sdg

Obviously booting without LILO parameters results in a kernel panic, so I booted with: Linux boot=/dev/sdg root=/dev/sdg6. This does not give the kernel panic, but results in an option to check a drive and gives an option ctrl+d to boot normally. However it reboots and I get stuck at the same again.

How does LVM handle the naming shift of the drives? The 4 drives that are part of the volume group contain critical data!!! If needed, I can reinstall Slackware again from dvd with all 7 drives attached (to avoid naming shift), but how do I recover my volume group? What if one of the drives dies or is removed, then naming shift happens again.

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Red Hat :: Mapping /proc/scsi/scsi Entries With Respective Device Names In /dev/ Directory

Apr 11, 2011

In my understanding, the way /proc/scsi/scsi gets populated, /proc/paritions also gets populated in the same fashion. i.e. the description for first entry of /proc/scsi/scsi can be seen in the first entry of /proc/partitions and same for rest.

So, With this assumption, in my project, I used to relate first entry of /proc/scsi/scsi with first entry of /proc/partitions to get its total size and same for all entries.

But, I observed some differences in following scenario, where

1) The first 4 entries in /proc/scsi/scsi are SAN luns attached to my system and for which the actual device names in /dev/ are sda,sdb,sdc and sdd.

2) The last 4 entries are the internal HDDs on same system. In /dev/, their respective device names are sde,sdf,sdg & sdh.

(Output attached at end of the thread)

But in /proc/partitions, the device order is different.

You can see their respective sizes in /proc/partition output as well.

So, my question is, in this particular scenario, I can't relate the first entry of /proc/scsi/scsi with first entry of /proc/partition. i.e. scsi0:00:00:00 is not /dev/sde, because it is actually /dev/sda.

It seems that my assumption is wrong in this scenario.

Is there any way or mechanism to figure out actual device name for an entry in /proc/scsi/scsi in /dev/ directory?

How can my application should relate /proc/scsi/scsi entries with their respective device names and sizes?

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Programming :: Programming Languages For Project Euler / Additional Ideas?

Jun 28, 2009

I've been working in the real world for a year making some money to go back and finish my masters, and now I'm coming to the end of my contract and am realising how little i remember and how small my scope has become; i basically do shell scripts and perl these days, and its making me uneasy. So instead of bitching about it , I'm going to endevor to complete Project Euler Using randomly generated programming languages for each problem, selected from

And post the fruits of my attempts at my blog (shameless plug) aswell as opening up my svn repository when I'm done. (altho i need to ask in another thread about svn permissions....)To my shame i havent ever touched C#, JavaScript, Ruby or Python, so all in all its going to be very interesting how much i screw up.Anyone have any additional ideas, or languages I'm missing or such? I was considering TCL or Haskell or Erlang at a strech, but i dont know how useful these three would be.

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Ubuntu Installation :: "Cannot Open Root Device" While Booting Install Iso On Flash Drive?

Sep 26, 2010

Ubuntu 10.04.1 to prepare a USB flash drive for use as installation media for a new computer that's on the way. When the Linux kernel tries booting up on the flash drive, I get an error saying VFS: Cannot open root device "<NULL>" or unknown-block(8,1).Here's how I got to this point...Created bootable partition on the thumb drive.Put the following files onto the flash drive: initrd.gz, vmlinuz, and ubuntu-10.04.1-server-amd64.iso fromhttp://archive.ubuntu.com/ubuntu/dis...ages/hd-media/Install Grub2 to the drive via grub-install.Put the following into boot/grub/grub.cfg:

Code:
set timeout=120
set default=0

[code]....

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Ubuntu Installation :: Bootloader To Usb Hard Drive - Error "no Boot Sector On Usb Device"

Apr 8, 2011

I am trying to install Ubuntu to an external usb hard drive (WD Elements SE). I am also choosing to install the grub bootloader to this disk (/dev/sdb) because I do not want anything modified on the internal drive. The installation appears to go okay, but when I try to boot to the usb drive, I get the error, "no boot sector on usb device" and it immediately falls back to my interal drive. I have tried this installation with both 10.10 (amd64) and 11.04 (amd64). How can I fix this?

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Ubuntu :: Upgrade Lucid To Maverick By Using Maverick Live Cd?

Oct 17, 2010

can we upgrade lucid to maverick by using maverick live cd. what are the other methods for upgradation

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Ubuntu Installation :: Maverick Meerkat - Cannot Detect Windows Installation

Oct 10, 2010

I installed maverick meerkat but for some reason there was no install to free space option so I installed onto 32gb of my 170gb windows vista installation. I NEED THAT INSTALLATION. Maverick Meerkat cannot detect my windows installation!

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Fedora Installation :: Device Driver For Usb To Detect Device?

Sep 19, 2009

I am currently using fedora 11 kernel 2.6.29 version, i wanted to write device driver for usb to detect my own device. My project is radio with computer. My fm radio get connected to usb port so i need to write h/w interfacing program.

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Ubuntu Installation :: Vista Not Booting After Maverick Installation?

Oct 16, 2010

I updated from 10.04 to 10.10. Ubuntu works fine, but Vista does not boot anymore. If i select it from the GRUB menu the Pc just go silent and does nothing till I press Ctrl+Alt+Canc.

Here is my fdisk -l

Code:
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
code....

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Ubuntu Installation :: Change The Partition Names?

Jan 30, 2011

i have dual boot installation-win7+ ubuntu 10.10 working fine. but the linux partitions are shown as 67gb, 30gb etc , filesystem. what should be done to change the names, and should be changed to what?,for correct identification.-ppm

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Ubuntu Installation :: Troubleshooting Maverick Installation On IBM T42?

Nov 6, 2010

Installed Maverick on a T42 (Pentium M 1.70GHz, 1GB RAM, 20GB harddrive with 3.5GB available space) and everything is fine - except machine freezes occasionally and will not respond to anything except power cycling. Fires back up again and works fine until it happens again. It seems to happen when I am using any browser. Being new to Linux and Ubuntu, I have no idea how to even begin diagnosing the problem. Can anyone help or point me towards a tutorial on troubleshooting this installation?

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Ubuntu Installation :: How To Stick With LTS Maverick

Oct 31, 2010

I want to stay with release 10.10 (maverick) until the support expires. So how should I configure 'software sources' so that I don't get offered to upgrade to the next release (11.04?). When on 10.04, I had the 'show new distribution releases' set to 'Long term support releases only', but it didn't offer the upgrade from 10.04 to 10.10 unless I changed it to 'Normal releases'. Should I now be setting it back to 'Long term support releases only' in order to stay with maverick? What would I miss out on if I do that?

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Ubuntu Installation :: Gnome 3 PPA For 10.10 Maverick?

Apr 23, 2011

I tested 11.04 for a couple of days, and it was (my opinion, of course,) terrible! I want to try out Gnome Shell, but I'd rather do so on my 10.10 install, instead of having to mess with the mess of 11.04. Anybody know of a PPA that works with 10.10?

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Ubuntu :: External Hard Drive Device Name?

Aug 11, 2010

I am setting up a Linux laptop for my parents, and want to also create some backup scripts to allow them to easily back up to an external hard drive. [And for them to be able to use it, it has to be super simple.]

For security purposes (should the external drive ever get lost or stolen), I want to encrypt the entire device using TrueCrypt. That means my scripts will have to use TrueCrypt to mount the backup volume using the device name. [Right?]

Now to the actual question(s): 1) Is there a way to ensure that an external hard drive will ALWAYS be assigned the same device name when plugged in? [That would be the simplest solution for me.]

2) Alternatively, is there a way (using bash scripting) to "find" the device name of a particular external hard drive, even if it might not be known in advance.

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Ubuntu Installation :: Flash Plugin For Maverick?

Oct 11, 2010

What is the name for the Adobe Flash plugin for Maverick ?

I don't seem to see it under the same name that it has been listed under previous versions of Ubuntu.

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