Ubuntu Servers :: Disk Not Unmounting Cleanly On Reboot?
Jun 15, 2011
We are using Ubuntu 10.04LTS server on Vmware Vsphere estate. We are using LVM and have / and /var on separate partitions.
We have been experiencing an odd issue with sda1 always being fsck'd after every reboot. We seem to have traced this to the start/kill scripts in rc0.d and rc6.d. It appears that the reason the disk is not being unmounted is because some of the scripts are never being run because they are prefixed with S. We renamed and reordered the scripts to reflect what we thought should be the correct order - i.e. not halting the system before unmounting disks. System reboots cleanly now.
Before list of rc0.d and rc6.d respectively:
lrwxrwxrwx 1 root root 17 2010-11-18 15:06 K01apache2 -> ../init.d/apache2
lrwxrwxrwx 1 root root 22 2010-11-16 17:03 K01zabbix-agent -> ../init.d/zabbix-agent
lrwxrwxrwx 1 root root 22 2010-11-30 08:16 K03vmware-tools -> ../init.d/vmware-tools
[Code]....
basically are we expected to do these changes as part of building new servers for production use? Quite happy to do this but just surprised that this is the default.
I've spent the better part of an afternoon looking for a solution to a problem: backing up my installation of 10.10 as an image file to an external hard drive. My research has yielded a lot of suggestions for clonezilla, dd, and partimage/particlone, but those don't seem very appealing, due to a number of issues (can't backup live, copies free space as well, doesn't handle ext4, etc). Also why is clonezilla 150mb?
I'd like a simple solution that can clone an entire disk (used space only) to an explorable image file on a separate hard drive and be able to do it while the operating system is running on the disk. I used to use apricorn ez gig to do this on windows and it worked like a charm, but I can't seem to find a similar solution that creates and explorable .iso image file with linux. I've used superduer on osx, which is awesome and i wish there was something like that for ubuntu/linux.
Currently I dual boot windows XP and ubuntu 9.10. However, I am quite happy about my Ubuntu installation and I am starting to think about my windows xp install as a waste of hard drive space.I wonder what's the best way to remove the windows xp install.I have 3 partitions, windows being the first, ubuntu being the second and the third being ubuntu's swap.I am not familiarized with the way the grub bootloader works so I am worried about breaking it if I just remove the first (winxp) partition via gparted and expand the second (ubuntu 9.10) fill the empty space.
I recently bought a refurbished HP Compaq NC6000 which had a new installation of Win XP put on it but takes about 5 attempts to boot up as it just sat at the load screen and freezes. So I decided to install Ubuntu 9.10 as a Dual boot with the view to getting rid of XP once I had Ubuntu up and running, which I have now. So cant understand why XP wouldn't work lol. Now I would like to fully get rid of XP and just have Ubuntu as the only OS on the laptop. Currently as it is Dual Boot I have my 80gig Hard drive partitioned with both OS�s on it.
Could someone point me in the right direction of how to get rid of XP cleanly so I just have Ubuntu left on my machine. I don�t really want to re-install Ubuntu as I have spent the last week getting it set up, so would it be possible just to get rid of XP? Also would getting rid of XP mess up the Grub Boot loader menu?
First Ubuntu install, everything is great except one small problem burning. Using Brasero
I burn CD fine Eject disc Drive is not accessible for reading or writing CD's until I reboot the computer Right click on the drive to mount volume and get "Unable to mount volume, no media in drive"
After reboot all is fine. I have tried multiple burners, same issue. USB burners can be unplugged, replugged in and used without a reboot.
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?
Everytime i reboot, it appears on the screen " The disk drive for /usr/local is not ready yet or not present" . I need to click S for skip mounting to skip that part everytime
I tried to change my /home to another partition, but after reboot I get an error saying the disk /home could not be mounted..fstab:Quote:
e# /etc/fstab: static file system information. # # Use 'blkid -o value -s UUID' to print the universally unique identifier # for a device; this may be used with UUID= as a more robust way to name # devices that works even if disks are added and removed. See fstab(5). # # <file system> <mount point> <type> <options>
I have an IDE disk which fails intermittently. It contains data only, no system files. (The system files are on /dev/sda1). Mostly at boottime the system fails to mount it even though it is listed in /etc/ftab as /dev/hda1 /mnt/hda1 ext2 default 1 0 I want to recover the files on it.
Is it possible to mount it after bootup? Is it necessary to reboot to detect attached disks? If the BIOS fails to detect the disk, is it impossible to mount it thereafter?
As you can see they now show up as inactive. And for some reason sdi1 and sdh1 are not even listed. What can I do to get them back? To make matters worse I placed some important data on them, and even if I was clever enough to keep an extra copy on another drive, guess which drive that was? So, I need to get them activated as is (at least so I can get the data of them) before I can rebuild them from scratch. I'm running Mandriva 2010.1 and rated tehm using the built in disk partitioner.
use fedora system, and installed fedora 12 on my usb disk by live-usb creator.Now, the problem is everytime i reboot the computer, the user data and software i installed will disappear.When installing, i choose persistent space which is described for user data and software, but it seems not work now.What can i do if i want my fedora on usb disk is just like the system installed on hard disk
I have some large volumes that I don't want to automatically be e2fsck'd when I reboot the server. Is it safe to change maximum mount count to -1 and check interval to 0 while a volume is mounted, or will that cause problems to the file system?
I was using Ubuntu 9.10 and was using fireftp ( firefox plugin ) to do some ftp operation. And then I noticed firfox is fozen so I reboot my pc by switching off the power ( restart doesn't work ). When I turn it back on again, no GUI anymore. I was taken to ttyl login commend.
I just finished installing Ubuntu Server Edition 10.10. After reboot it brings me to a shell prompt asking for username and then password. After putting it in I just get a blank shell prompt. How do I get into the GUI ?
I have set up a new IP specifically for SSH and configured SSHD_Config accordingly to listen on this new interface and a specific port. However when I reboot SSH is not starting. Looking in the syslog it shows that it is unable to start. It looks like its trying to listen on the interface before it is set up.
Code: Nov 29 13:00:23 anubis init: ssh main process (601) terminated with status 255 Nov 29 13:00:23 anubis init: ssh main process ended, respawning Nov 29 13:00:23 anubis init: ssh main process (610) terminated with status 255 Nov 29 13:00:23 anubis init: ssh main process ended, respawning Nov 29 13:00:23 anubis init: ssh main process (618) terminated with status 255 Nov 29 13:00:23 anubis init: ssh respawning too fast, stopped
I am able to start SSH manually once the server is booted. Do I need to set up my interfaces differently to ensure they are available prior to SSH starting somehow? I don't want to change my ssh config to listen on all addresses.
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.
I have a problem while rebooting my 9.10 server when I have SAN partition mounted. The message is something about the swap that can not be cleaned during the process. All works if I unmount the partitions before shutting down or rebooting.So I though to create a bash script that unmounts the parts during runlevel 0 and 6.I've created a simple script like this in /etc/init.d:
I am having problems with bond0 starting at boot on ubuntu server 9.10. After I do a restart I have to manually start the network with "ifup bond0". I have installed the built package (ifenslave-2.6_1.1.0-15ubuntu1_i386.deb (as indicated in Bug #482419)).
I have setup bonding for mode=6 with miimon=100 using eth0 and eth1 (both are Intel 10/100/1000 ports using an aic79xx network driver).
The contents of the aliases file are:
alias bond0 bonding options bond-mode=6 miimon=100
The contents of the interfaces file are: auto bond0
Core 2 Duo E4600 2GB DDR2 RAM (1 stick) Intel ICH10R based motherboard (tried an ICH9R aswell) 4-port SATA controller (PCI Sil 3114) O/S: Ubuntu Desktop x64 10.04 LTS (using 'desktop' because I like having a remote desktop)
The Storage Setup Disks: Assorted selection of 9 disk. 750GB, 1000GB and 1500GB Seagate and Western Digital disks. The disks are joined through a standard LVM2 configuration. I don't know the LVM term, but normally you'd call it a JBOD setup. On that LVM device, I've put a cryptsetup device, made with the LUKS tools (aes-xts-plain 256) On the cryptsetup device, I've created and mounted an EXT4 partition.
All in all, a completely standard LVM2 and LUKS setup, running EXT4. After a reboot, I proceed to unlock my cryptsetup encryption device, and then mount the EXT4 partition. All is well, the mount is accessible and everything looks fine. I then try to send a file to the mount, via Samba. After a few hundred MB written, the I/O wait goes berserk. It stays at 50% (dual core setup remember). The system becomes unresponsive to network commands (can't browse samba) for about 5-10 minutes. When it finally responds, the I/O wait is gone and everything is now fine. I can write and read hundreds of GB's of data without any issues at all. I can benchmark and stress all disks perfectly fine and no logs are showing disk errors.
I tried monitoring my disks with 'iostat -d 2' while the I/O wait was happening, and there is some slight Blk_read/s activity on 1 disk at a time. First for example /dev/sda is showing a little Blk_read/s acitivty, then it jumps to the next disk, and when every disk has show that slight Blk_read/s activity (500-800 or so) the problem is gone and the I/O wait is no more. I've tried changing motherboards, switching disks around on the controllers, checking individual disks, replacing disks and I've tried different versions of Ubuntu. The problem however persists. I could see it being a network issue, possibly a driver issue. But since the NIC is a standard RTL8111 on-board it seems unlike that the problem wouldn't be more widespread since this NIC is litterally being used everywhere. I did change my motherboard, so a faulty NIC seems unlikely twice in a row.
I have an Ubuntu 8.04 server running 2.6.24-23-server. I have a godaddy account and I am trying to upgrade my os version to 10.04, which requires a kernel upgrade. I have tried ksplice but kernel 2.6.24-23-server is not supported. I have heard about screen sessions but I have not found it possible to reboot one screen while having the other screen stay persistent if it is possible.So the main question is how to update Ubunut 8.04 to Ubuntu 10.04 with out rebooting the entire server? Rebooting is completely not an option at the moment.
I had a thread earlier asking for help installing Ubuntu Server to my homemade atom based NAS, but I gave up on that (GUI's are more helpful to me ) and so now I'm running Ubuntu 10.10 Desktop 64bit edition.Last night I was finally able to get mdadm set up. I have two 1TB disks set up in RAID1 config. I used
Code: sudo mdadm --create /dev/md0 --level=1 --raid-devices=2 /dev/sdb1 /dev/sdc1 to create the array, and then waited until it finished assembling. Then I used System>Administration>Disk
In /etc/ldap.conf I'm using my own nss_initgroups_ignoreusers setting. However, on each system start, Ubuntu adds its default nss_initgroups_ignoreusers line additionally to my own, and I have no idea where that comes from (needless to say, it's annoying!). So when I edit /etc/ldap.conf as follows:
I'm running Ubuntu 10.04 LTS. Last night I was doing some admin on this box, it's running apache and ASSP for spam filtering. Once I finished I started some updates.I checked for updates and applied them, but fell asleep. This morning, my session had timed out at continue. I reconnected and saw a message stating a reboot was required.I've rebooted, my usual services are running, eg apache and ASSP. I can view pages on apache and the admin page for ASSP. I'm remote from the system, so connecting over the internet and when I try to connect, it fails.
Quite urgent, however at least my services are working. However I'm not happy that I can't access the system myself.I don't know if this is my own fault for leaving updates unattended or if an update caused the problem. Thanks.
Is there any web interface that I can install to remotely reboot ubuntu? It would only be accessible via a VPN or on the LAN so not too much worry over security.
I installed 11.04 server and had samba share /tmp (as advised by the server pdf doc) shared to my windows 7 laptop, which was all well and good, so copied some files to it and rebooted the server, and they had been removed.i guess i shouldnt have put anything in /tmp as i presume this is cleared on reboot, so why did the documentation advise to create /tmp share?
Ok this is one of those questions that have probably been made often. But I just CANNOT find a way around this on Fedora, and i have searched for it alot. Basically, after remotely rebooting my server, i'm not able to connect through vnc because the server needs to login. I've looked into an automatic login, but this is not the way i want to go. Edit: I'm using the default fedora vnc server, and RealVNC on my Windows computer. Been to ##linux on freenode, but at the time, noone there could answer me either.
