Ubuntu Servers :: Unable Too Boot 10.10 From ISCSI Root Disk?

Oct 12, 2010

I'm wanting to run 10.10 server from a root disk located on an iSCSI server. My server is FreeBSD 8 running isc-dhcpd and is sharing out a 20GB iSCSI disk. I've run the server install CD (currently testing in VMWare), and it finds the iSCSI share without a problem. I'm able to install the OS just fine, but the problems start when I try to boot the installation. I'm booting off a gPXE iso until I can get PXE chain-loading figured out. My DHCP config looks as such:

host mm-iscsi
hardware ethernet 00:50:56:3f:3f:bf;


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SUSE :: No Iscsi-disk On Client?

Jan 28, 2010

iscsi-client OS: SLES10SP3i586I configured this sles10sp3 box an iscsi-client via YaST (yast2 iscsi-client), but 'lsscsi' or 'fdisk -l' doesnt show any iscsi-disk

# rcopen-iscsi restart
Closing all iSCSI connections: Logging out of session [sid: 1, target: iqn.2010-03.com.ibm:sn.135026430, portal:,3260]


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Ubuntu :: Unable To Mount Root Disk

Mar 3, 2011

I can't mount my Ubuntu partition. I was using my PC when it suddenly crashed, so I rebooted. When Ubuntu started again, it said that it was mounting, but I rebooted again. So, now when I start it tries to mount the main partition but it can't. Then appears <initramfs> and I don't know what to do.

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CentOS 5 :: ISCSI: Session But Disk Doesn't Appear?

Sep 29, 2009

I have a CentOS 5.3 server, running in a VM. I get the iSCSI session to my Buffalo, but the disk doesn't appear.

Sep 29 09:06:29 qaservice iscsid: iscsid shutting down.
Sep 29 09:06:29 qaservice kernel: Loading iSCSI transport class v2.0-871.
Sep 29 09:06:29 qaservice kernel: iscsi: registered transport (tcp)
Sep 29 09:06:29 qaservice kernel: iscsi: registered transport (iser)


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Ubuntu Servers :: MOTD Root Disk Usage?

Dec 13, 2010

I've just installed ubuntu 10.04 and the message text that shows when you ssh in shows the disk usage of /home.How do I get it to show the disk usage of the entire root / instead? (like it used to on some older version of ubuntu)

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Ubuntu :: Resize Entire /root (root.disk) Virtual Disk Space?

Jan 25, 2011

I'm running out of space in wubi. Online wubi help didn't help much since they suggest creating extra virtual disk space(similar to having a diffrent partition i guess) .None of them speak about increasing the size of /root disk space(or root.disk). I store all files in space shared with windows or external disk and use ubuntu only to install and use softwares and browsing. So how do increase the available space for installing more softwares?

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Ubuntu Servers :: ISCSI + LVM Gone After Reboot?

Feb 21, 2011

I have an iSCSI target on my Ubuntu 10.04 LTS server that is giving me access to 3 x 2TB volumes. I am using LVM to create 1 big volume and using it as a place for my backup software to write to. Upon initial setup I tested to see if the connection would still be there after a reboot, and it was. After going through the trouble of configuring my backup software (ZManda) and doing a few very large backups I had to reboot my SAN (OpenFiler) for hardware reasons. I took my server down while performing the maintenance and brought it back up only after the SAN work was done. Now, the LVM volume is listed as "not found" when booting.

Using iscsiadm I can see the target but LVM doesn't know of any volumes that exist using those targets. I need to get it back up and running and then troubleshoot the reboot issue.

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Debian Configuration :: ISCSI Connection - Attach To The ISCSI LUN

Jun 24, 2010

I have never done this before but stood up a new Debian (testing) x64 system. It only has 146GB available for RAID1 so I created a 500GB iSCSI LUN on my NAS device on the network and am really confused how I can attach my Debian to the iSCSI LUN I created. Right now the OS is installed all locally on the machine but I would like the iSCSI LUN to be the /home directory for mail storage. Is this possible or do I need to mount the LUN to a newly created folder / mount point that is locally attached?

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Red Hat :: Unable To Boot RHEL 5.2 And Unable To Mount Root File System In Rescue Mode

Jan 28, 2010

Environment: A 32-bit kernel RHEL5.3 system running on a virtual machine. The root(/) filesystem is on an LV.

Issue: Unable to resize the FS after extending the root LV since it is mounted. After extending the LV, online resizing of the FS was not supported and the root filesystem could not be unmounted while it was in use. On rebooting, I got a kernel panic error. In runlevel 1, I couldn't run chroot, couldn't find the /etc/fstab, root FS could not be mounted, fsck did not run (tried block 31 for second copy of superblock using dd count=1 bs=4k skip=31 seek=1 if=/dev/sda2 of=/dev/sda2), couldn't find any rpm on installation media to install unix-utils rpm. On running commands in runlevel 1,

I got the following output.

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Ubuntu :: Root Disk Check Failed - Cannot Boot 10.10

Apr 25, 2011

I applying changes through update manager in ubuntu 10.04 then my computer froze. So I had to restart it manually.
Now I can't boot ubuntu normal or recovery mode.I get an error message saying 'the disk drive / is not ready yet or blah blah'.I don't have a livecd to fix it this with... but here is my 'cat /etc/fstab' relevant output

/host/ubuntu/disks/root.disk / ext4 loop,errors=remount-ro 0 1
/host/ubuntu/disks/swap.disk none swap loop,sw 0 0

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Ubuntu :: Root Disk Does Not Exist Error On Second Boot Up

Feb 12, 2009

I've downloaded Ubuntu 8.10 and I have installed it within ms windows. My first problem was when I went to boot Ubuntu and the graphics weren't right so I rebooted it with a different graphic configuration and it installed successfully. When I went to boot Ubuntu a second time to actually use it I got the following error:
ALERT! /host/ubuntu/disks/root.disk does not exist. Dropping to a shell!
BusyBox v1.10.2 (Ubuntu 1:1.10.2-1ubuntu6) built-in shell (ash)

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Ubuntu Servers :: Open-ISCSI Initiator On 10.04 Possible?

Feb 15, 2011

I have used open-iscsi for a couple of years on fedora and oracle linux, but since I use ubuntu for my desktop, web servers and mysql servers I thought I would be nice to do so on our new MySQL-server which should be connected to our Qlogic SAN. The installation went well after figuring out how to put two network cards on the same network, which seems to be the Qlogic way to do multipath. But I cannot make open-iscsi to log on automatically after reboot. Is there something different with open-iscsi on ubuntu?

Everything works if I logon and do:
iscsiadm -m node -l
multipath -v2

And then mount the volumes but if I try to put them in my fstab like:
/dev/MySQLdata/data/var/lib/mysql/ext4_netdev1 2
/dev/MySQLbackup/backup/var/mysqlbackupext4_netdev1 2

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Ubuntu Servers :: Can't Bypass ISCSI Prompt During Automated Installation?

Sep 28, 2010

I'm trying to jump Ubuntu Server 10.04.1 x86_64 on an HP DL360 G5. After loading the modules for install, I'm greeted with an iSCSI prompt that cannot be bypassed. Hitting Finish brings me right back to the same iSCSI prompt.The issue seems to be identical to y kickseed file is as follows:

#platform=x86, AMD64, or Intel EM64T
# System authorization information


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Ubuntu Servers :: Unable To Login With Root Account After New Install

Jan 11, 2010

This may sound a bit odd, but after installing Ubuntu Server 9.10 64-bit version, I can't seem to log in with the root account that I created. My user account works fine. I thought that I may have fat fingered the password when I created it so I ran the installer again since it takes very little time to do so. When creating the new root account password, I was very careful to type it correctly. After the install was complete, I am still unable to use the root account. I'm unable to SU from my normal user account, too. I just receive the Login incorrect error. Is there something with using root accounts with Ubuntu server that I'm missing?

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CentOS 5 Server :: Way To Allow Two Servers To Use Same File System On SAN Using ISCSI?

Mar 9, 2010

What is the correct way to allow two servers to use the same file system on a SAN using iSCSI?Is it GFS on the two servers?

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Ubuntu :: Unable To Boot Ubuntu / Unable To Access Root Drive From Live CD

Jul 16, 2010

Im having a serious issue with booting ubuntu 10.04, the issue being it wont boot up at all, after working so well for so long (i suspect some recent dodgy system updates are responsible) so I decided to just reinstall ubuntu from scratch again but wanted to retrieve some important files from my root device. So I am running the live desktop and I can see my previous filesystems under places but cannot mount or open my original root device where the files I want to recover are located, I receive this error msg:"Unable to mount 77 GB Filesystem.

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Fedora :: Unable To Create A Boot Disk?

Jul 15, 2010

I am running Fedora Core 13 and I am having problem creating a bootdisk. As I enter the command mkbootdisk, I receive the error "command not found". I even tried to enter the full path i.e /sbin/mkbootdisk while logged in as root and I still get the same error.

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Ubuntu :: Unable To Boot After Hard-reset After Using Rm -r As Root / Enable It?

Apr 6, 2010

First of all, i'll just say this myself. I'm a dumbass and tried to fix somethings that wasn't even a problem from the start and now my 9.10 installation is totally fubar. There, done, now let's move on.

Ok, so I tried to delete a folder after compiling two binaries to the wrong folder and used the
rm -r
command on what I thought was the folder /home/lars/bin. And to add to the dumbass-ering, I was root while doing this. The computer hangs and leaves me with no other options than doing a hard-reset via power-button.

After rebooting I can't even see the login screen, it just hangs at the Ubuntu symbol.

So I give the recovery mode option in my grub menu a try and it gives me a bunch of lines, all looking good until I get this and the boot just stops with a blinking underscore. code...

Should I just beat myself for a while and then reinstall the OS or what...?

The hardware involved is a Asus EEEpc 1000h.

ps. I'm new to Linux and have so-far managed to get around by following guides and tips, just a heads-up.

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Ubuntu Servers :: Auto Input The Password For The Encryption Disk During Boot Up?

Apr 26, 2010

I would like to known whether I can configure the server to input the password for the encryption disk automatically during boot up.Is it possible

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Ubuntu :: Unable To Boot The 10.10 - Mounting /dev On /root/dev Failed: No Such File Or Directory

Feb 9, 2011

After upgrading from 10.04 to 10.10 I have had some problems booting my Ubuntu. It all started when restarting after the upgrade, and I got the error;


mount: mounting /dev on /root/dev failed: No such file or directory
mount: mounting / sys/ on root/sys failed: No such file or directory
mount: mounting /proc on /root/proc failed: No such file or dirctory
Target filesystem doesn't have /sbin/init.
No init found. Try passing init= boot arg

BusyBox v1.13.3 (Ubuntu 1: built-in shell (ash)(initramfs) After searching the Internet, I found a "solution". I just had to boot with a USB stick with the Ubuntu Rescue Remix (the normal Ubuntu USB won't boot either), and i wrote;


sudo fsck /dev/sdb5

Now I could start my Ubuntu again. So whats the problem? If I turn off my computer the normal way, there is no problem, but if I log off, put it into sleep mode, if something happens and I have to turn it off with the button it goes back to the first problem, and I have to reboot it with the USB stick and fix it all over again! If I don't have the USB stick with me, I probably wont be able to use my laptop!

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OpenSUSE Install :: ISCSI Boot Fails With Error 15 - Already Exists

Mar 25, 2011

I'm using OpenSUSE 11.4, trying to install to an iSCSI partition. I'm using gPXE to boot to my iSCSI volume. This works fine, and pulls up grub with my boot options. I think boot the openSUSE 11.4 entry, which kicks off the boot process. I see the steps for running DHCP on the interface, but when it gets to iscsiadm, there's an error logging in to the iSCSI target portal along the lines of "15 - already exists. After that things start to fall apart - I/O errors, mainly, and the system completely fails to boot. What's going on and what this already exists message means?

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Ubuntu :: Disk Failure Or Virus - Unable To Boot Up - Lot Of Error Messages Displayed

Aug 30, 2010

Last night when I turned on my lap top (5 year old Acer TravelMate 4650), it was not able to boot up (10.04 LTS). No system files could be read and a lot of error messages was displayed. In fact, it has done a few checks for disk error lately during boot up, but no further warnings given. I gave up recovering, and simply re-installed Ubntu 10.04. I was wondering if this could be related to a virus attack?

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General :: Can't Boot From My Hard Disk / Unable To Restore GRUB - Fix It?

Feb 4, 2010

After completing the installation of Fedora-FEL edition, I cant boot from my hard disk. "No bootable device found " error appears.

I have one Windows XP & 2 Linux installation in my disk.
I tried to restore grub using "setup (...)" command.but same error repeats.
Even I cant restore Windows XP using "fxmbr" command in... recovery console .

But I can boot from that drive by "chainloader" command in grub. code...

Running above command in grub terminal boots my hard disk ("hd1" is my "unbootable disk")

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Ubuntu :: Long Disk-activity-pause On Boot - Between Mounting Root And Mounting Swap?

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:


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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Ubuntu :: Won't Boot - Kernel Panic - Not Syncing: VFS: Unable To Mount Root Fs On Unknown-block (0,0)

Jan 12, 2010

I have an ongoing issue that I've not been able to troubleshoot. Upon bootup I get the following text and error, and it stops. ACPI: Aborted because bad gzip magic numbers MP-BIOS bug: 8254 timer not connected to IO-APIC Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block (0,0)

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Fedora Installation :: Unable To Boot Or Switch User To Root On Fc13

Aug 18, 2010

Having just installed fc13 and downloaded the KDE package I attempted to log out as user and back in as root, but I keep getting a message about the wrong password. This is odd as the same password works in terminal if I try to become a SuperUser. I have tried turning off SELinux to no avail. I cannot log in from cold as root,only as user.

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Red Hat :: Increasing Disk Device To / Root Disk Enterprise Server 4?

Mar 25, 2010

I am having problem with the root disk / fill up. So now that i have the disk information provided from SAN team Id 0:3, how would i do to add this device to / to increase space on Redhat Enterprise server 4?

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Ubuntu Servers :: Unable To Boot Vsftpd?

Aug 4, 2011

I'm running ubuntu 11.04 on two computers, and I had two ftp-servers running fine and well. But then, after a computer reboot, I'm not able to boot the servers anymore.

root@kjellern-lima:~# service vsftpd start
vsftpd start/running, process 2552

It says it starts running, but if I try to connect to it, or run:

root@kjellern-lima:~# netstat -a | grep ftp
nothing happens

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Ubuntu Servers :: HW RAID Disk Shows Up In Fstab But Not In /dev/disk/by-uuid?

Jun 28, 2010

I have an SiI hardware SATA RAID card, with two 500GB disks in mirrored RAID configuration. When I first plugged them in and set it up, things seemed to work ok, but on boot the raid controller told me that the RAID needed rebuilding, and it would happen automatically after POST. So I didn't worry about it, and the drive mounted fine, and it's been that way for years. I just went in and manually on-line rebuilt the RAID in the controller's BIOS, and now when I boot into Ubuntu, both disks show up in fdisk, but neither show up in /dev/disk/by-uuid. Am I missing something?

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Fedora Servers :: Unable A Virtualbox Guest To Start At Boot?

Mar 27, 2010

Can anyone help me with how to create an init.d script that will startup a vm machine in virtualbox at boot? I found this script:[URL]..But it is for ubuntu. I am running fedora 12 x386 and using it as an Amahi server. Very cool, but it would be extra cool if I had a virtual windows machine startup when I booted up this server. Then I could just rdp into it when I needed something in windows.

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