I'm running 2.6.32-28-generic. I have a raid1 (two 1tb drives with two partitions... one for / and one for /home.) After a power outage, I'm seeing grub complaining about /dev/md0 not existing (ALERT! /dev/md0 does not exist. Dropping to a shell!)
I booted to the latest live CD to have a look around. My dmesg output includes these ominous lines:
Code:
Here is the whole dmesg output: [url]
I burned a new disk with ubuntu 11.04 image and I managed to boot the live cd using my external monitor, I've installed and went into my monitor settings, it displays my external monitor as unknown and doesn't even detect my laptop screen. Changing the driver being used in my xorg.conf to vesa allows me to boot properly and ubuntu uses my laptop screen (yet it still detects it as an unknown monitor). Installing any nvidia driver and using it breaks my system. Heres an image of the laptop when using the nvidia driver (btw I can still hear the ubuntu sound that plays when its reached the logon prompt).
View 2 Replies View RelatedI am trying to install Unbuntu 11.04 on a Via raid 0. I have windows already setup and it boots fine, but Ubuntu does not see the raid set. Running dmraid -ay (or any valid switch with dmraid) returns :
sudo dmraid -ay -v
ERROR: via: invalid checksum on /dev/sdb
ERROR: via: invalid checksum on /dev/sda
no raid disks
mainboard is Asus M2V, with 2x Hitachi 250Gb disks in raid 0 configuration set in BIOS. I have a 3rd hard disk on the onboard Marvell 88SE6121 sata controller but this is not seen at all by Ubuntu either. I was thinking of installing it here if Ubuntu does not work the RAID, but no go it would seem. I do remember installing an earlier version of ubuntu on this very same board using RAID 0 (2x 80Gb drives at that time) and the RAID was reconised and worked fine straight from live cd to full install.
I was trying to move my home partition on Ubuntu, and the computer hibernated on me. I restarted it up on the live disk to survey the damage, to find that the home partition, according to fsck, "Superblock has an invalid journal (inode Clear? <y>"
It cannot be mounted, either.
I just installed jessie on a machine that had been running wheezy with no problems. Now I see that a kworker process is hogging nearly 100% of one of the CPUs. I am not sure how to proceed with solving the problem even after doing a number of Google searches.
I'm not sure if this is related, but I am getting the following when I run 'dmesg':
[ 3637.597975] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 42
[ 3637.597979] Raw EDID:
[ 3637.597981] 00 ff ff ff ff ff ff 00 4d d9 90 02 01 01 01 01
[Code] .....
My hardware is:
cpu:
Intel(R) Core(TM)2 Duo CPU E6550 @ 2.33GHz, 2333 MHz
Intel(R) Core(TM)2 Duo CPU E6550 @ 2.33GHz, 2000 MHz
keyboard:
/dev/input/event0 AT Translated Set 2 keyboard
mouse:
/dev/input/mice ImExPS/2 Logitech Explorer Mouse
[Code] ....
Here is the "top" display, showing 75.2% of the CPU on kworker/1:2 and 27.6% of the CPU on kworker/1.1:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4731 root 20 0 0 0 0 R 72.5 0.0 0:53.73 kworker/1:2
28 root 20 0 0 0 0 S 27.6 0.0 0:58.69 kworker/1:1
1246 dan 20 0 1668476 132720 57548 S 2.7 4.3 0:42.33 gnome-shell
4673 dan 20 0 855208 158368 65568 S 2.7 5.2 0:28.44 iceweasel
815 root 20 0 201804 29020 18728 S 1.0 0.9 0:14.30 Xorg
[Code] ....
I have got a very frustrating problem. I am not new to Ubuntu but this time I bit my tongue! Actually it is a problem related to my graphics card "Intel 945GM" , it is a real crap card but it is working fine with Windows XP pro (I use windows just for testing)!
Problem : My monitor DELL ST2310 would not work under DVI mode (only VGA mode is working fine)! I tested with Kubuntu, Ubuntu (several distos), Fedora 13.. Upon booting, I get this error message :
Code:
EDID checksum is invalid
remainder 130
the monitor DVI connection is working perfectly under Windows XP. This means the Intel 945GM cannot read the EDID hexadecimal data transmitted by the monitor through the DVI connection. Yet, System recognizes the graphic card's DVI-D port but set it as disconnected.
[Code]...
I have a x64 OpenSUSE server with two hard drivers installed. The first one is used for the / and /home partitions and the other is for backups. Ironically enough it is the backup hard drive I am having trouble with. I was having trouble writting to the drive and unmounted it to preform a fchsk, however now when ever I try to mount it I get the following error:
mount: wrong fs type, bad option, bad superblock on /dev/sda1,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
Does anyone know who I can repair the drive and retrive data?
After several crashes during videos it seemed like a good idea to fsck root. Downloaded the latest systemrescuecd and ran it at boot. The error message was 'bad magic number, corrupt superblock' with a suggested command to try another superblock. That failed with the same message. Tried tune2fs to force fsck at boot and got the same message. The drive is less than 6 months old and the installed system is working more or less ok. The command I used was 'fsck.ext4 /dev/sdc2'. What am I doing wrong?
View 9 Replies View RelatedI installed Debian 5.03 Lenny successfully on my machine. I got this error during boot: ACPI : invalid PBLK length [5]. After that the Operating System boots properly and starts normally. What does this error statement mean? Is it safe to work with this installation despite this error?
View 1 Replies View RelatedTrying simply to insert into table. Have succeeded in doing this but now want to correct user use of invalid characters. If I'm understanding correctly, Real-escape-string seems to correct these, so I've been trying to figure out how to use it. A short, test code version gives me a syntax error at INSERT VALUES, which--because it still has the single quotes in the text--tells me the real-escape-string didn't work. The code below gives me a parseing error with invalid $END at </body>.
Insert Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ' VALUES (UTC_TIMESTAMP,'What's happen' bra?')' at line 1 Parse error: syntax error, unexpected $end in /home/powere15/public_html/DB/exercises_insert_record.php on line 94
<html><head><title>Exercise Catalog Insert Record</title></head>
<body>
<?
/* Change db and connect values if using online */
[Code]....
Using Ubuntu 10.04 on an old HP DV4000 laptop. Trying to do a backup from my laptop's disk to an external USB drive using DD while booted from an Ubuntu boot disk. The laptop's hard drive is not mounted. I was also using a checksum to verify the backup against the hard drive like so:
Code:
$ dd if=/dev/sda of=/media/usbdrive/whatever.img
$ md5sum /dev/sda > laptop.md5
$ md5sum /media/usbdrive/whatever.img > img.md5
Unfortunately over two separate attempts I have not got the checksums to match. However, I have mounted the dd image and retrieved part of the backup from the image, with no apparent corruption. Are there any reasons other than data corruption that could be causing this? I have not tried to restore from said image to see if it "works" (for obvious reasons).
I've got a few video files that came with md5's. I want to check them but I don't know how.
View 6 Replies View RelatedI have a large tarball which is bz2 compressed, and I would like to get a md5 sum of the files contained in it, as I have a separate directory on another server containing what I think are the same files. I want to check to see if the tarballs files are the same as the uncompressed files on the remote server. The files are big 10gb+ so I was wondering if there was a quick way without having to uncompress them all and then md5 them.
View 4 Replies View RelatedRunning ubuntu server (ie no gui) but suspect this might be a general problem.
With the machine booted from the hard drive, if I run fdisk -l I get an invalid partition table message code...
Unable to read the contents of this file system!
Because of this some operations may be unavailable.
How do I correct this error?
This might take a little while to explain so please bear with me. I just bought a HP N36L microserver to replace my Netgear ReadyNAS as it has 4 bays as opposed to the 2 in the Netgear, the HP came with a 250GB Seagate drive in so I installed Ubuntu 10.04 server onto that as a minimal install in a 5GB partition, selected basic server, lamp and samba during the setup and then once installed added the minimal gui, all good so far.
The idea was to have 3 1TB drives in the HP running software Raid 5 and after trying to do this via the disk utility gui and having misaligned cylinders I found this guide for setting up the Raid 5 array - http://www.jamierf.co.uk/2009/11/04/...n-ubuntu-9-10/ Now the problem with setting up the raid was I had just over 900GB of data on the 2 disks in the Netgear and not enough space anywhere to back it all up so the plan was to install 1 x 1TB drive and format to ext4 and transfer all the data onto it from the Netgear, then pull the 2 drives from the Netgear and build the Raid 5 array using just those 2, then copy the data from the 3rd drive onto the raid and then add the 3rd drive and grow the array.
This actually was all going fine, 2 disk array was built, data transferred and all was good so added the 3rd drive to the array and issued the grow command, after many hours this completed and I had a 2.0TB filesystem icon on the desktop.
Now the problem, the last two steps were to unmount the array and run an fsck on it (as per the guide) and then grow the filesystem but the array wouldn't unmount it kept saying it was busy, I tried to force it but still nothing so I decided to reboot (my windows background coming back to haunt me perhaps) when the box came back up it failed to mount the array due to a bad superblock
[Code]...
How can i read out the superblock of a filesystem?
View 5 Replies View RelatedI have Ubuntu 10.04 and I used my ssh to connect to a webserver. This is the version that I have installed.
Quote:
OpenSSH_5.3p1 Debian-3ubuntu4, OpenSSL 0.9.8k 25 Mar 2009
Apparently the server was hacked using my user and the server admin suggested the my ssh can be tainted.
do a checksum of the ssh, but I cannot find this file on my system.
Code:
md5sum /usr/sbin/sshd
And I will need a md5 hash from a good untainted version and I cannot find that as well on the openssh website.
is there a command within ubuntu to create a checksum of a machine after i have installed all of my needed software. i'm interested in this as a defense against rootkits
View 1 Replies View RelatedWhere can I find the md5sum checksum for Ubuntu 10.10? They seem to keep it hidden.
View 2 Replies View RelatedI have problem witch installing larger packages. Small packages works always. Some bigger works after few tries (like vlc-data). Large packages never works (wesnoth-1.8-music 138MB). I checked many mirrors: main, every from Poland and most from Germany. It same on kubuntu 10.10 and 11.04. My ISP doesn't use proxy of any kind. What could be the reason?
View 5 Replies View RelatedI am new to Ubuntu and I need to know how is possible to calculate a file's MD5 checksum. Is there also any gui interface?
View 6 Replies View RelatedI cannot for the life of me get my HD working again. I tried following all the various remedies I could find but to no avail.
Code:
ubuntu@ubuntu:~$ sudo e2fsck -f /dev/sda1
e2fsck 1.41.4 (27-Jan-2009)
e2fsck: Attempt to read block from filesystem resulted in short read while trying to open /dev/sda1
Could this be a zero-length partition?
Code:
ubuntu@ubuntu:~$ sudo dumpe2fs -f /dev/sda1 | grep -i superblock
dumpe2fs 1.41.4 (27-Jan-2009)
dumpe2fs: Attempt to read block from filesystem resulted in short read while trying to open /dev/sda1
Couldn't find valid filesystem superblock.
It goes on and one like this. I'm stuck using the LiveCD for now (Jaunty) so I have some limitations.
The HDD is a 500GB internal SATA, The smart claims that the "file system is not clean" but is still green.FSCK ran a few errors and using fsck i copied a new superblock from a backup location, It still won't let me mount and FSCK is still trying to fix a TON of errors. I'm sorry I don't know any of this yet, but I'm concerned that FSCK could be destroying the data on the drive, for example photos and other important things. FSCK is coming with a lot of things to fix, It's gone from trying to fix errors in free blocks of group #1 to over #3000.. Is this safe? Will this work? Can I get rid of whatever caused this problem in the first place?
View 1 Replies View RelatedHow can I checksum a directory?
Using both cksum and md5sum yields the same error
Code:
root@linux# cksum /bin
cksum: /bin: Is a directory
root@linux# md5sum /bin
md5sum: /bin: Is a directory
[Code].....
Bottom Line: Dvd Drive died in my toshiba laptop and it was replaced (not before tech for some reason reformatted the Win7 partition... which was 100% un-needed, but thats beside the point now. I redid win7 (the tech installed vista) and am TRYING to "redo grub". Facts: The Slackware AND Ubuntu Partitions ARE STILL THERE and when i use SuperGrub Boot CD (which doesn't restore my grub by itself) to boot into slackware, i can see ALL THE CONTENT of both Linuxes still there including grub on ubuntu partition
(Tri-Boot: Ubuntu, Slackware, and WIn7) I had it working for two years or so, SO i know this "setup" works fine. I am A) Trying to do this as simply as possible. B) Trying to avoid the need to download a 800MB ISO (as seen for this issue on this forum) and trying not to have to reformat Ubuntu Partition (though I have the .Debs I have downloaded for it backed up ... all 1.7GB of them) I have /dev/sda1 as win7, /dev/sda2 as Slack and /dev/sda3 as Ubuntu (which contains Grub Legacy).. Every command I do seems to result in an error like "invalid command" or "invalid Execution format " (i think that second one is right) type errors. I compiled (awhile back) a few kernels for Slackware, but feel goofy that I cant figure what i this out (what i thought was going to be a "2 minute" fix)
Using a 10.04 LTS installation disc, fresh are my install Firefox, multiple software, and the software updater thing did not work. Figured maybe I messed something up. I installed 10.04 LTS about 6 times from scratch, no other OS on the system. They all had issues loading software, I click on whatever it goes to launch and nothing ever comes up. I started doing updates through the command prompt using
sudo apt-get update
sudo apt-get upgrade
Then multiple packages broke. Tried sudo apt-get -f install but I keep getting an error that openoffice and firefox fail their checksum. Click on upgrade by 10.10 version gives me the screen that says are you sure, with all the information for the distro and then brings up a window that says download 2 out of 2 and it also crashes. So I figured alright, maybe the CD version I have is messed up. I downloaded the 10.10 iso image and burned it three times. Two of my live cds take me boot me to the purple ubuntu starting screen but nothing is displayed except for a little icon with a keyboard and the disabled person at the bottom. Then my computer reboots it does that continuously.
I'm trying to format a 32GB USB flash drive to ext3 for Linux.
Code:
sudo tail -f /var/log/messages
shows me:
Jan 1 23:40:42 rj kernel:
[13773.966516] sd 11:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK
[13800.780008] usb 2-1: new high speed USB device using ehci_hcd and address 8
[13800.932141] usb 2-1: configuration #1 chosen from 1 choice
[13800.932281] scsi12 : SCSI emulation for USB Mass Storage devi
[Code]...
Today for strange reason, one of my Ubuntu 64 bit server Linux VM failed to start ? it stopped in the FSCK scan status with the error as attached. few days back I've added new hard disk successfully and format it as sdb5 without problem.
View 3 Replies View RelatedRight now I use dd to backup mbr and the first 512 bytes of every partiton.
Code:
dd if=/dev/sd? of=sd?.bin bs=512 count=1 That would take care of the partition tables and grub in the mbr, but what about the superblock, the stuff that XP stores and the superblock?
Code:
dd if=/dev/sd?1 of=sd?1.bin bs=512 count=1 Is it save to assume that if grub was on sd?1 it is backed up?
Does it backup the superblock so if some bug or power failure makes the partition unmountable because of bad superblock it can be fixed by copying back the first 512 bytes? I am of course not changing partition size or type of filesystem and not messing around with grub.
I'm trying to 'upgrade' my 500gb drive to a bigger 1tb. I thought it would be as easy as using dd from the smaller to the larger then swapping them. However, after using dd, although the partitions seem to be there on the 1tb drive, they all have a bad superblock and can't be mounted.
View 1 Replies View Related