Fedora :: Grub - Unknown Partition Table Signature

Jan 10, 2010

i have FC10, and have loss my grub because a windows 7 instalation (other partition). I am trying to re-install the grub version 0.97, so i used:

FC10 DVD install + repair a system

then:

Code:

chroot /mnt/sysimage
grub

but i got:

unknown partition table signature.

so i can not make any grub command:

Code:

grub> find /boot/grub/stage1
error 15: file not found

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Hardware :: Unknown Partition Table On USB Thumb Drive

Jul 29, 2010

My friend gave me a flash drive with some important files on it that one day didn't work with his windows box. Upon plugging in the thumb drive, Windows gives a "you must format this disk before it can be used" message. I tried running a data recovery program (Easeus) on it but didn't have great results- only recovered some .wav files, a few .avi files and a .exe- none of which were very important, so I figure'd I'd try to mount it in Linux and possibly see the rest of the filesystem. The thumbdrive is a 2GB Lexar JD Firefly I plugged in the thumb drive and it is picked up by the system, but I can't access it. Here is the output of lsusb

[code]....

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Debian Configuration :: Jessie (Stable) 8.4 Update Unknown Partition Table Message

Apr 17, 2016

I update Jessie "stable" 8.2 to 8.4 and now I get 5 minute interval kernel messages:

Apr 18 06:39:52 OraHost kernel: [131985.494726] sdc: unknown partition table
Apr 18 06:45:03 OraHost kernel: [132295.755942] sdc: unknown partition table
Apr 18 06:50:03 OraHost kernel: [132595.946564] sdc: unknown partition table
Apr 18 06:55:13 OraHost kernel: [132906.139327] sdc: unknown partition table
Apr 18 07:00:23 OraHost kernel: [133216.340555] sdc: unknown partition table

I believe this has something to do with an mdadm update which was included in the release. When I configured the array, I didn't partition the disk devices, so maybe that has something to do with it. I am thinking of rebuilding the array and partitioning prior to build, but a quick fix would be referable.

And also something appears to have happened to the raid device since the update.

Prior to update, the array was /dev/md0 - now it is /dev/md/0 which is a symbolic link back to /dev/md0.

mdadm --detail --scan now reports /dev/md/0 where previously it reported /dev/md0

I created a new RAID1 array on a fresh system and immediately after the create, these messages appear at 5 minute intervals.

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Fedora :: Recover Mbr / Partition Table - Boot "Super Grub Virus" From A Usb Stick

Aug 5, 2010

a windows installation on a fake-raid, /dev/mapper/ddf1_AR01p1 and an xtra penguinFS on ddf1_AR01p2. I simply tried to boot "Super Grub Virus" from a usb stick ... and the $%!($ER hosed the array. Luckily, my day to day OS and important data is on a different set of disks ... but my BIOS boot target is set to the fake-raid, so it did not kill anything genuinely important ... I just got lucky.

I would really like to restore the windoZe partition as it WAS. I actually use it a couple of times each year. I would just reinstall the OS ... really NOTHING important on those 2 disks, but I have no idea where my XP disk can be found ... but I know the xp installation is hiding in /dev/null ....

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Ubuntu :: Difference Between Using GPT Partition Table When Formating Hard Drives And MS-DOS Partition Table?

Aug 6, 2010

Is there a difference between using GPT partition table when formating hard drives and MS-DOS partition table? What are the advantages/disadvantages of using either?

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Ubuntu :: Grub Error 17 Due To Unknown Fs Type On Main Partition

Feb 1, 2010

A formerly working system now gives an 'error 17' at Grub instead of booting. Here are the facts I have gathered thus far.

$ blkid
n/a (no output)
$ sudo fdisk -l /dev/sda
Code:
Disk /dev/sda: 60.1 GB, 60060155904 bytes
255 heads, 63 sectors/track, 7301 cylinders

[Code]...

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Ubuntu :: Delete A Partition And When Boot Message Appears - Error - Unknown Filesystem Grub Rescue >

Oct 23, 2010

Just delete a linux partition and now when i boot a message appears and says error: unknown filesystem grub rescue >

I have search on the net for this problem and i have understand it a little. But my situation is a bit different and because i don't want to format my hard disc i wanna try to fix it. So before a couple months i download ubuntu 9.10 and i installed it a month later. But my computer used to crash all the time and i couldnt use it. So i download the latest ubuntu 10.4 and install it while having windows xp and the old ubuntu 9.10(so i had windows xp, ubuntu 9.10 and ubuntu 10.4 partitions). Now i tried to delete the partition of ubuntu 9.10 from disc utility. so i have the message i wrote above when i boot. I dont wanna delete my windows xp and ubuntu 10.4. what should i do to stop this message from appearing.

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Fedora :: Ls /dev/sda* Displaying Entries Not In Partition Table?

Sep 6, 2009

I have encountered something of a mystery here. The other day while in /dev I ran 'ls sda*' and noticed this...Quote:

ls -lZ /dev/sda*
brw-rw----. root disk system_u:object_r:fixed_disk_device_t:s0 /dev/sda
brw-rw----. root disk system_u:object_r:fixed_disk_device_t:s0 /dev/sda1

[code]...

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Fedora :: Repair / Restore Partition Table?

Aug 6, 2010

I ve got a dual boot, XP and FC 12 on a single harddrive. After defragmentation of NTFS partition (With XP installation) cant'boot linux So, rub statrts with boot menu after selecting linux it tries to load linux but prints out some messages again and again (I do not remember contetn of messages) And these messages are circulating

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Fedora Installation :: No Bootable Partition In Table?

Aug 29, 2010

I am using a 8 GB usb flash to create a F13 Live Media. I created it using the livecd-creator. But when I use it to try to boot, it says "No bootable partition in table". What's wrong? I did some searches on google, but didn't find a solution.

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CentOS 5 :: User Unknown In Virtual Mailbox Table

Oct 27, 2010

when I try to send emails to new created emails account, I get this error:

<teste@topdapop.com>: Recipient address rejected: User unknown in virtual mailbox table´┐Ż
And if I try to send a e-mail, the authentication fails if I setup the account at the desktop email client to password requirement on.

But it works when I try it using a webmail client (Horde) and I receive the email.The old emails accounts work fine. The new accounts and old ones were created with Plesk.I find an entry with

/usr/local/psa/admin/sbin/mail_auth_view | grep teste@topdapop.com

I get no output from

strings /var/spool/postfix/plesk/virtual.db | grep teste@topdapop.com
Using mchk and mailmng does not seems to change that.

I also found the file /etc/postfix/virtual.db .strings /etc/postfix/virtual.db : no output

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Fedora Installation :: F10 Does Not Recognize A F4 Partition Table / Resolve This?

Feb 23, 2009

I'm trying to install Fedora 10 from a USB memory stick on which i've installed Fedora-10-x86_64-DVD.iso and, early in the process of configuring the installation, i get messages about both my IDE hard drives having unrecognizable partition tables:

"The partition table on device sda (... my disk data ...) was unreadable. To create new partitions it must be initialized, causing the loss of ALL DATA on this drive."

Same for sdb.

My PC currently runs Fedora Core 4 (yes i know i should have gotten around to upgrading my OS earlier) and yes it recognizes both hard drives just fine.

The answers I've found on the web suggest to backup my drives and repartition. I'm not too hot on that "solution".

explain why a F4 partition table is not recognized by F10?

BTW, I've recently upgraded my motherboard, processor, DVD drive, regrouped both my IDE drives on the same bus, ... I consider it a miracle F4 still runs on this PC (although F4 does not support the motherboard's graphics card, so no X11).

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Fedora Hardware :: Can't Read Partition Table After Install F13?

May 27, 2010

I have installed the fedora 13 x86_64 live cd. I updated fedora as well as installing gparted.y hard disc containing my operating systems is not being read by gparted.unalloacted partition table. Also i am not able to mount a ntfs parition on the same hard disc.I did create the partition table on all hard discs with gparted livAnybody else had this problem? A kernel crash is also reported.DIT:I booted ubuntu 10.04 and opened gparted v5.1 without any problem. I booted fedora 13 again and now gparted 5.2

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Fedora Installation :: OS Cannot Find A Free Spot In The Partition Table In MBR

Nov 1, 2010

I have a Toshiba laptop, running Vista Home Premium SP2 with AMD Athlon 64 X2 Dual-Core Processor, 1 gb ram & 150 gb HDD. I just shrunk the c: drive down to 92 gb to free up 43.5 gb so as to load the Fedora Linux OS into this free space & have a dual-boot configur'n. My problem is the partition table in the MBR. It shows 4 partitions there, so the fedora 13 Live CD which I use to install the OS cannot find a free spot in the partition table. I have the Ultimate Boot CD so I took a look at the MBR. Here are the 4 partitions that occupies its table:

1. (no drive letter) - file system: blank - EISA config'n - 1.46 gb - partition type code: x27
2. C: - fs: ntfs - system, boot, active, primary partition - 92.01 gb - code: x07
3. D: - fs: ntfs - primary - 5.98 gb - code: x07
4. (no drive letter) - fs: blank - primary - 5.64 gb - code: x17

c: is 17% free, d: is 99% free, the other two are 100% free Can you explain what is the purpose of D: ? How about the other two (with no drive letter)? I read somewhere that 'x17' code means 'hidden IFS (ex: HPFS)' & 'x27' means a rescue partition... true?

Would I be safe in replacing the partition table entry for #1, 3 or 4 with an entry for my Linux? (I have an editor that could modify the MBR). Or would it be better to leave MBR alone, put a boot program on a CD or USB stick, which boots Linux from the unallocated 'partition'? (have to somehow manually install Linux to the 43.5 gb area that I freed up).

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Fedora :: After Installing 14 - Cannot Windows Startup Without A Valid Partition Table

Jan 31, 2011

1.After I install fedora14, I can not start window7,It shows only a transverse line shining .

2.when I comes into inux , execute "fdisk-l " ,it shows 'no invalid partition table' this two points have relationship?

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Software :: Can't Change The Innodb_log_file_size - Error: Unknown Table Engine 'InnoDB'

Jan 10, 2010

hen I change innodb_log_file_size to more than 5mb no php script is working... and I have this strange error in my scripts errror_log

Date: Sun, 10 Jan 2010 15:00:39 +0200
Error Number: 1286
Error: Unknown table engine 'InnoDB'
IP Address: 77.7.246.165
Page: /index.php?showtopic=174868
mySQL query error: SELECT * FROM ibf_topics WHERE tid=174868

I change it in my.cnf than restarted mysql

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Fedora Installation :: Broken Partition Table - Cause Significant Data Corruption ?

Jul 24, 2009

During a recent request to install fedora 11, I ran into an interesting problem. It seems that between fedora10 and fedora11, the developers switched from fdisk, to parted for creating the initial pre-mke2fs partition table creation.

It looks like the implementation of this is broken, as it's writing the partition table with overlapping cylinder boundaries. While this can sometimes be ignored, it can in certain cases cause significant data corruption.

On an installation I took it through, using the latest installation media, in both manual & automatic partition creation, the layout looked like this:

The last two partitions turn out fine, for some reason. However, those two partitions should not have overlapping cylinders. After my very first installation, the system was completely unbootable, and not even fsck wouldn't rescue it. If this is possible, then that means that a system that's been online for months or even years could simply drop out of functionality simply due to a byte or two of system-critical data falling on that last cylinder. Considering that a lot of the time kernel data ends up on /dev/sda1 (commonly the /boot partition), this is something that should not be ignored.

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Fedora :: Deleting Dev/sda Partition Table (msdos) Affect Windows 7 System?

Aug 5, 2011

Will deleting dev/sda partition table ( msdos ) affect my windows 7 system? I am trying to install Fedora 15 on Virtual Box.

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Fedora :: Gparted - Kernel Unable To Reread Partition Table On Disks

Jan 22, 2010

When I start gparted, to see if I can add extra harddisk where all my data is, I get the next error:

Code:
[root# gparted
libparted : 1.9.0

The kernel was unable to re-read the partition table on /dev/sda (Device or resource busy). This means Linux won't know anything about the modifications you made until you reboot. You should reboot your computer before doing anything with /dev/sda. I can start fedora 12 x64 amd whitout any problem. My partition layout on a single disk (80 gb sata maxtor) for the system is:
Code:
/
/home
swap

When I try to mount one of the extra disks (samsung spinpoint 1 tb, I have 4) I get to next error:
Code:
root# mount /dev/sdb1 /media/sdb1
mount: you must specify the filesystem type

If I add the option with the filesystem I get:
Code:
root# mount -t ext3 /dev/sdb1 /media/sdb1
mount: special device /dev/sdb1 does not exist

In gparted, when I select just a flag option, and deselect, press ok, the disk is forced to be reread by the program. After that I can also mount it. When I use any of the programs linked in this post, I am able to mount the disks whitout any problem. Except after a reboot, I get the same problem. SO whit each reboot, or poweroff, I need to do a re-read of the disks. The system is fedora 12 x64 for amd, installed from a live cd, the rest whit yums groupinstall, the latest kernel.

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Server :: Recipient Address Rejected: User Unknown In Virtual Alias Table

Oct 28, 2009

I have a Fedora box running a domain and a sub domain. It also is the mail server running Postfix and Dovecot. I have created a new user account in the Virtual Alias.conf file and run postfix reload.

"e.g [URL] admin_company"

This new account can send mail internally and externally but cannot receive mail internally and externally.
The error message internally is: 5.1.1 <admin@threadneedle.com.pg>: Recipient address rejected: User unknown in virtual alias table

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OpenSUSE Install :: Invalid Partition Table / Error Message Corrupt Partition?

May 20, 2010

I was installing opensuse 11.2 in parallel with windows xp.but during installation suddenly power has gone and after that opensuse is giving me the error message corrupt partition.i am also not able to login in xp. so I decide to reinstall windows, I got the error saying "invalid partition table" after the first restart of windows xp installation.

I tried to use windows system recovery console and committing fixmbr and fixboot commands, but didn't work.
i have 2 window partition(1 for windows and 1 for data).i do,nt want to format 2,nd partition.

How can I installed windows?My plan was first to install windows xp, then opensuse again.

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General :: Automating USB Drive Configuration Of Partition Table, Partition And File System

Jan 26, 2011

I have tried to automate the configuration of a usb drive with not much success.

The problem that I have is that I have a large amount of usb drives that have a partition table of type "loop" and I need to change them to "msdos". The size of the drives vary and I need to use FAT32 or FAT16 file system.

I've tried various partitioning commands and gui applications but cant find one that I can give a one line command to to set the partition table, maximum partition size and file system.

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Hardware :: Invalid Partition Table For Swap Partition That Moved With Gparted?

Feb 8, 2010

I was reading another thread about someone with a bad partition table and I decided to join this forum. I'm not going to take any drastic actions with the partition (/dev/sda3) in question. I am going to wait for instructions on what to do first. I am not very good with Linux and need some hand holding. System: DELL 4550 Dual-Booted with XP and Ubuntu. Works OK, just no swap. Well, here's what I did: I deleted a partition for Windows XP Pro because it was a trial, and it ran out. I then decided to slide the swap partition for the Ubuntu Linux that I dual-boot into over. (If this was successful, I was going to try expanding the root partition to take up the unused space.) I used Gparted on a CD to do this, as I figured it was safe to do.

I now cannot mount the swap space at bootup (and have to go into a backup version of the OS), although I can use Gparted in Linux to execute the "swapon" command, and it appears that it worked because I now see "swapoff" as an option on the context menu. (I actually don't even need a swap partition, except to hibernate.) If I highlight the swap partition and click on "Drive" on Gparted's menu bar and select "Create Partition Table", it will erase all data on /dev/sda, so how do I fix the bad partition table non-destructively?

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Slackware :: Changing Boot Partition / Bootable And Rewrite The Partition Table?

Apr 24, 2010

Everything is installed and setup on my system, but when I setup my partitions I chose my Windows partition to be bootable. Can I just use cfdisk to toggle the bootable flag so my linux partition is bootable and rewrite the partition table?

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Ubuntu :: Change Sda2 Partition To Ntfs - WARNING: The Kernel Failed To Re-read The Partition Table

Mar 27, 2010

I want to change my sda2 partition to ntfs type. i have installed GParted but it is returning a strange type of error. Here is the error dump file...

[Code]...

WARNING: the kernel failed to re-read the partition table on /dev/sda (Device or resource busy). As a result, it may not reflect all of your changes until after reboot. WARNING: the kernel failed to re-read the partition table on /dev/sda (Device or resource busy). As a result, it may not reflect all of your changes until after reboot.

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Ubuntu :: Tell Kernel To Reread Partition Table While One Partition Mounted

Feb 5, 2010

Is there a program that will reread the partition table and update the kernel even if one of the unmodified partitions is mounted? I installed my system on one partition, then I added another with free space. Now I want to format the second partition, but the kernel doesn't know about it yet. I tried sfdisk -R /dev/sda, but it refuses while the root partition is mounted. Is there anyway I can avoid rebooting?

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General :: USB Flash Disk Partition Disappeared As Well As Partition Table?

Feb 17, 2011

USB flash disk partition disappeared as well as partition table I'm not sure about the cause

Code:

root@u# less /var/log/syslog
usb 5-1: New USB device found, idVendor=058f, idProduct=1234
usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0

[code]....

Where did the partition table go? The device had one ext3 partition something around 4GB(size of USB storage device). I need to restore few files from this device.

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Software :: Cloning Partition To Different Laptop - Invalid Partition Table

Nov 19, 2009

I'm trying to clone a Linux install to a different laptop. It's made a little complicated by two facts:

1) The 'new' laptop I'm trying to copy my Linux installation to is actually older and has a smaller hard drive then the computer I'm copying from

2) The computer I'm copying from has both a windows and Linux installation; I only care about the Linux partition.

I figured I would copy only the Linux partition from my primary computer to the laptop, sense the laptop doesn't have a large enough hard drive to copy everything. So I used the DD commands to copy SDA3 (main Linux partition) from my main computer to SDA2 of my laptop. When I came back a few hours later I was surprise to find my laptop trying to reboot itself (I never turned it off). It would keep starting to reboot, failing, and restarting itself. Not too surprising sense its boot partition wasn't changed so it's trying to boot into centos when I copied a redhat partition to it.

The problem is that when I used a redhat boot disk the rescue mode was unable to find a Linux partition to mount. /dev/sda2 exists, but trying to mount it gets the complaint "No such file or directory". "fdisk -l" lists sda1 (the boot sector) and sda2. Sda2 is the correct size and reports Linux LVM for its system. But "fdisk -l /dev/sda2" gives the error message "Disk /dev/sda2 doesn't contain a valid partition table" Did I not clone the drive correctly, or was an error caused due to the boot sector not being copied yet (the laptops boot sector is smaller then my old computers, so I can't copy from old computer to laptop)? Can I salvage the laptops partition table somehow, or do I have to repeat the cloning process? And if I do have to re-clone my computer can anyone tell me what I did wrong the first time so it works this time? I don't care if I copy just the Linux partition or both windows and Linux. Even though my main computer has a larger hard drive I'm only using about half of its available space so it should be possible to copy both partitions if I could ignore the unused sections of the harddrive.

Edit: I used DD to copy a tiny part of the Linux partition from my laptop so I could look at it. Most of it is illegible binary of course, but I scrolled through till I found some text right near the beginning:

Code:

VolGroup00 {
id="F2MWxh-....-BidcLe"
seqno = 1

[code]....

So it seems that the DD command did copy everything over to the laptop, which is good to know. I noticed that it says device="/dev/sda3" right in the middle of the code I just posted. The Linux section of my original computer was SDA3 but I copied it to partition SDA2 of my laptop. So is the problem because the boot partition is for the wrong device? I don't suppose if I modified that one line to say SDA2 it would be able to load correctly? (Not that I know how I would modify the line, short of using the DD command again).

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Ubuntu Security :: Postfix - Not Critical - SMTP Server: Errors From Unknown [ip Address] In Local Recipient Table

Jan 2, 2010

This is a transcript I get emailed at least once every day, usually about 3 to 10 a day recently.

Transcript of session follows.
SMTP server: errors from unknown[ip address]
<boring stuff snipped>
In: RCPT TO: <server@my domain>
Out: 550 5.1.1 <server@my domain>: Recipient address rejected: User unknown in local recipient table

Session aborted, reason: lost connection Now I cannot seem to find anything via Google, as when I put "server@" anywhere in the string, I just get web hosting or other kroomst. The emails usually come from legit places, usually hotels. Does this mean they are sending bad emails, i.e. they have a Trojan/worm, or is this a live hack attempt?. I believe the later, as I might get upto 3 domains from the one ip address, which is always, NOT associated with the listed domain. Not causing me any issues, except I have been getting a lot recently.

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Ubuntu :: Partition Outside The Disk - Corrupted Partition Table?

Oct 5, 2010

What I believe has happened is that I've corrupted the partition table. Essentially one of my partitions' ending point exceeds the maximum number of cylinders/sectors on my drive.

Essentially I have the same problem as on the thread @ [url] but do not know how to fix this and am afraid to reformat/partition based on sectors without really knowing what I'm doing here.

[code]...

When I try to look at SDA in GParted everything shows up as unallocated (though it's obviously not) and it says

[code]...

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