CentOS 5 :: /dev/sda No Longer Exists After Reboot?
Aug 6, 2009After rebooting my centos server I no longer have a /dev/sda entry, nor any /dev/sd* entries. What could have gone wrong?
View 1 RepliesAfter rebooting my centos server I no longer have a /dev/sda entry, nor any /dev/sd* entries. What could have gone wrong?
View 1 RepliesWe have a Centos 5.6 server mounting two iSCSI volumes from an HP P2000 storage array. Multipathd is also running, and this has been working well for the few months we have been using it. The two volumes presented to the server were created in LVM, and worked without problem.We had a requirement to reboot the server, and now the iSCSI volumes will no longer mount. From what I can tell, the iSCSI connection is working ok, as I can see the correct sessions, and if I run 'fdisk -l' I can see the iSCSI block devices, but the O/S isn't seeing the filesystems. Any LVM command does not show the volumes at all, and 'vgchange -a y' only lists the local boot volume, not the iSCSI volumes. My concern is that, the output of 'fdisk -l' says 'Disk /dev/xxx doesn't contain a valid partition table' for all the iSCSI devices. Research shows that performing the vgchange -a y command should automatically mount any VG's that aren't showing, but it doesn't work.
There's a lot of data on these iSCSI volumes, and I'm no LVM expert. I've read that some have had problems where LVM starts before iSCSI and things get a bit messed up, but I don't know if this is the case here (I can't tell), but if there's a way of switching this round that might help, I'm prepared to give it a go.There was absolutely no indication there were any problems with these volumes, so corruption is highly unlikely.
MySQL used to have a command named 'perror' to show the meaning of error codes. It seems that this command no longer exists on 11.2 and 11.3. Did it change the name?
View 2 Replies View RelatedI seem to be having some problems with the clipboard. If I copy something in firefox, then quit out of firefox, the thing I copied no longer exists. I don't think this used to happen, I'm sure I would have noticed before now.
View 4 Replies View RelatedI just installed OpenShot from Ubuntu Software Center. When I want to launch it, it displays nothing, then I try from terminal and I get this:
Code:
OpenShot (version 1.1.3)
Process no longer exists: 15049. Creating new pid lock file.
A new frmMain has been created
Segmentation fault
2 month early I was at Ubuntu 10.04 beta and this problem occurred in : VLC, OpenArena, FileZilla etc. and I made a fresh install in April. I configured Ubuntu and have lots of important files, A fresh install isn't an option for me.
I am trying to add some functions to a Postgresql database. The functions use a shared library which they think is: /usr/lib/pgsql/postgis-1.4.so They say: "ERROR: could not load library "/usr/lib/pgsql/postgis-1.4.so": libgeos_c.so.1: cannot open shared object file: No such file or directory"
I cd to /usr/lib/pgsql/ and do an ls. postgis-1.4.so is there. libgeos_c.so.1 is as well (and it's in /usr/lib/ )
Both the files seem to exist. I cannot copy either of them (cp says "cannot stat '[file]': No such file or directory".
I have installed no updates and made no changes to configuration in any way. Computer has been left on for some time. Finally rebooted to clear any caches. When it came up again the system does not recognise the monitor. So I get the default resolution. Not hardware as a windows install comes up fine.
Using Wheezy with MATE
Running on Haswell
Installed backport to stop crash on exit 3.13-0.bpo.1-amd64
I have tried several versions of live CD. These all give the same symptom - which is why I tried the windows install. So I suspect this is something to do with recognising the onboard graphics in Haswell.
I have googled and found, however, means using a shell script. This seems rather drastic and I don't want to go that way unless there is no other possiblity of a solution. In that post the output of xrandr is posted so doing the same here.
Code: Select all xrandr -q --verbose
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1600 x 1200, current 1600 x 1200, maximum 1600 x 1200
default connected 1600x1200+0+0 (0x138) normal (normal) 0mm x 0mm
Identifier: 0x137
Timestamp: 4622
Subpixel: unknown
[Code] ....
Resolution : Linux system does not like both DVI and VGA cable plugged in at the same time.
I have an Ubuntu 10.04.1 AMD64 server running Apache with SSL. In the past, even though I have a passphrase on my key file, I have only needed it if I manually restarted Apache2, never after reboot.
I recently switched from a self-signed cert to one from a CA. I'm not sure if this is what caused it, I also installed a few packages (AWStats, PHPSysInfo and Munin) that all interact with the webserver.
Anyway, I just noticed that now after a reboot Apache starts but doesn't work. I need to kill that process and start a new one with the passphrase (maybe on the console it is prompting me, I mainly use SSH access since the server is headless).
Why did Ubuntu used to 'remember' the passphrase on the self-signed cert but now I need to provide it?
My sever auto-updates so it would be annoying to have this thing go down regularly after a patch that requires a reboot.
I just loaded 10.10 on an Acer Aspire One D255. When I installed Ubuntu, network manager loaded and I was able to use both the wired and wireless cards. After I used update manager, the kernel was upgraded, and I also added some wireless applications (RutilT WLAN Manager, SWScanner, and WiFi Radar). Upon reboot, the network manager doesn't work, and it cannot find any of the devices.
View 9 Replies View RelatedI've upgraded my raid array, and to make it boot I had to regenerate the initrd image (the root was on the raid drive)using
mkinitrd <img file> <kernel version>
after that at boot i always receive this error:
error inserting /lib/raid456.ko: -1 file exists
been running Lucid & Karmic for a while now, after an update last week (with kernel) & reboot sound no longer works.Results of 'sudo aplay -l':
Code:
**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: ALC888 Analog [ALC888 Analog]
[code]....
I'm running CentOS 5.3 64bit and from the get go I've had problems with the Apache server.More specifically, on what seems to be a random occurance, the apache server stops to respond.The process is still running, but nothing happens with it, and it is not responding.The /var/logs/httpd/error_log is blank for the occurance and only shows an entry after I give it a restart.So I'm a bit confused about what is going on.With that said, I need to make sure the httpd is working one way or another.I don't want to force a restart service every 10 minutes as this seems a bit too much.However, I do want to have the following:
run a crond every minute to do:If it fails, then do service httpd restart (and log the failure and restart to a file and email me a message).Any pointers on how to do that?It ain't the pretty solution, but it will save me from a very angry user until I'll figure what is the real cause for this failure.
I have some problems with CentOS 5.4 and standard kernel 2.6.32.7, which I need for realtime extensions.With the solution in this thread: [URL] I could boot the new standard kernel , There are still two error messages during the boot process:
"insmod: error inserting /lib/dm-region-hash.ko -1 fikle exists"
and a problem with ip-tables "could not restore ip-tables line 20" or so
status is httpd dead but pid file exists ang logged caught SIGTERM, shutting down.
View 1 Replies View RelatedWhy is cx88-dvb no longer included in the CentOS 5 kernels found in centosplus?
It is present in all 2.6.18-92.1.x versions, but not in 2.6.18-128.1.x versions.
I am an old days RH release user(from 6.x) and just switching back from Debian/Ubuntu to CentOS on some servers, but I can not understand the kernel update strategy currently enabled in CentOS.There are two boxes, with almost identical installation, but recently there was an auto update of kernel on one box. This auto update also seems to issue an auto reboot on the machine, which is unacceptable on server machines.
View 2 Replies View Relatedwhen a remove a user from the system using the domain userdel guest the user gets removed but the /home/guest doesn't get removed so i remove it by command rm -rf /home/guest then i recreate the user by giving in the command useradd guest now it gives the error mailbox file already exists what does it mean when it says so though this command creates the user.
View 3 Replies View RelatedHave a problem to decrypt emails after I updated to 5.3. Didn't change anything to the pgp or Kpgp settings and Kmail says that it failed decryption with openpgp. As I don't know what to look for or what to check I am lost.. it encrypts outgoing messages just fine.
View 1 Replies View RelatedI recently started having a problem with Dovecot deliver on my mail server. Mail is no longer delivered to the mailboxes. The mail boxes are on an NFS share. I tracked this problem to the following system call:
[Code]...
One of my mailservers running postfix has suddenly stopped sending mail and has been generating the following errors:
Jan 7 12:03:08 postfix/sendmail[3560]: warning: premature end-of-input on /usr/sbin/postdrop -r while reading input attribute name
Jan 7 12:03:08 postfix/sendmail[3560]: fatal: root(0): unable to execute /usr/sbin/postdrop -r: Success
[Code].....
Things I have tried to fix this problem, but didn't work.
1) Stopped postfix, uninstalled and reinstalled.
2) Did a complete filesystem relabel with a touch /.autorelabel and reboot.
3) Did a restorecon -F -R on /etc/postfix, /var/spool/postfix and /usr/sbin/post*
Nothing above has worked and have no idea why with selinux disabled postfix works and with it on it fails.
I have an Intel i7 with CentOS x64 installed, with the intention of using it as the host O/S with VMWare Workstation to run a number of virtual machines. I had this all working until the kernel was updated to 2.6.18-164.11.1.el5, Now I can no longer start any VMs. I have tried reinstalling CentOS, updating it first, then installing VMWare Workstation - no different. I have tried running as root - no different.
Is anyone else aware of this problem? Does anyone else run VMWare on CentOS x64?
Gnome was working fine, then rebooted and it now loads a basic x windows GUI. What happened to Gnome loading and how do I get it back? It's not on the session manager menu
View 6 Replies View RelatedI did a yum clean all then yum update and got all the 5.4 stuff at which point I rebooted it gets to the udev entry and dies. Any one have any sugestions on how to fix this?
View 10 Replies View Relatedwhen I reboot the server with centos 5.5 the SMB deamon doesn't start?
View 2 Replies View RelatedWe are using 1 LSI card on our tester to run massive I/O actions, but it seems that after couple of hours (or something like 1 day) of using the LSI, the tester reboot itself.
View 1 Replies View Relatedafter the 5.6 update I started loosing the connection to my router. Having had issues with routers before I assumed that the router was on its way out. However I happended to have a laptop handy the other day and thought I would give it a try (after eth0 went down), router was fine(same cable too). I have tried bringing eth0 up/down (gui and ifdown/ifup) and restarted the network(gui and cli) but it will not get an ip(as I recall it does recognize that the cable is connected). If I do a reboot, eth0 comes up immediately. The log just shows repeated dhcp requests. I tried a dhclient -r but it errors out with no link found. It has been doing this since 5.6 came out (roughly once a day) so I THINK that it is not a hardware issue(should have died completely by now if it was). PSU voltages show stable and unchanged. It does use the forcedeath driver. 5.6-64bit fully updated.
View 9 Replies View RelatedI was wondering if anyone knew how to add a user/pass and allow them to issue the reboot command. Ideally, I dont want them to be able to see files/directories or anything else for that matter.I was thinking something along the lines of a chroot jail that has a single script that would call the reboot.
View 2 Replies View Relatedservice xend status returns nothing - simply moves to next line
service xend start does the same thing
xm list
ERROR Internal error: Could not obtain handle on privileged command interface (2 = No such file or directory)
Error: Unable to connect to xend: No such file or directory. Is xend running?
My centos machine suddenly stuck, the hdd LED flashes constantly, and the system reacts to all my operations very slow. I even cannot log in to a native terminal (always timeout). I had no choice, I pressed the power button. Reboot once failed. The system failed to find mount points.
I inserted the installation disk into computer and entered rescue mode. But I found everything was there. And another reboot brought up the system. I wonder what was the process that stuck my system.
At 4:00 pm on 4/1/2009 I accepted the offer to dowload and install a number of small improvements. This has always worked in the past. This time there were a few problems with the install, but I went ahead and rebooted. It stopped at grub, stage2.
I am now trying the rescue feature of my install CD. I will report on this later.
As for the always possible hardware failure, I have a raid setup, so I was not expecting this.