Ubuntu Servers :: Partition Ends At Total Number Of Cylinders + 1?
Jul 28, 2011
I made a fresh ubuntu server installation with two of the same hard disk drives in RAID1 mode.When the installation finished, I had some errors in random times rendering the system unresponsibleCode:end_request: I/O error, dev sda, sector <Number>From the above error, it looks like there was a problem with disk sda so I decided to change it with another same disk and rebuild the RAID1.
When I put the new hard disk on it, created a raid partition of the maximum allowed size and tried to add it to the raid array (after having removed the previous disk) I got an error saying that the new partition is not large enough to join this existing RAID1 array!Then an "fdisk -l" command shown something weird...The existing working hard disk in the RAID shows that it has 38913 cylinders but the partition starts at 1 and ends at 38913+1=38914!!How is this possible? When I create a partition myself I am not allowed to put numbers larger than the total number of cylinders!
Code:
# fdisk -l
Disk /dev/sda: 320.1 GB, 320072933376 bytes
[code]....
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Dec 29, 2010
I'm slack 13.1, I am trying to install it, but always gives an error. I type cfdisk and appears this error:
Fatal error: bad primary partition 2: Partition ends in the final partial cylinde Press any key to exit cfdisk
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Dec 25, 2010
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Mar 20, 2011
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Oct 8, 2010
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Jul 7, 2011
I am running Ubuntu 11.04 on a computer with 2GB RAM. It seems that it never uses more than about 20-25% of the total RAM even if I have several applications running.
The question is - do I really need to have a swap partition if it is not being used?
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Jan 8, 2011
I want to install Arch Linux on my desktop, it is going to be a dual boot with Windows. I booted into the installation CD, but when I started cfdisk to partition my hard drive it gave me the following error: FATAL ERROR: Primairy parititon 1, partition ends in the final partial cylinder.The QuestionHow can I troubleshoot and fix this?Additional details
These will be added if asked for.
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Jun 29, 2011
my partition should be linux but I can't allocate it using * because the partition number (1-7): 83Value is out of range. I want to allocate everything to one big linux partition with just a small partition for windows for warranty purposes.I don't need all those other partitions which I got probably from trying out different Ubuntu versions.
steve :~$ sudo fdisk /dev/sda
[sudo] password for steve:
WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
[code]....
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Aug 29, 2010
I am playing with grub and i change the root using:
How can i know what's x for /dev/sda7 ?
The problem is that in Gparted view, the order is not like sda5, sda6, sda7, ...but the order is like:
So what's x for /dev/sda7 ?
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Jul 1, 2010
Can someone explain how to determine the number of blocks to determine the number of cylinders for a new partition on hard drive.
Why is block size divided by 1024?
I think I understand unit size is the total bytes per cylinder, I get that. I understand the anatomy of the hard drive (i.e. heads, sectors, cylinders.
My problem is, if I need to calculate the number of cylinders needed for let's say a 20G partition on a 120G drive.
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Sep 11, 2009
I'd just like to know the max number of logical partitions an extended partition can hold. Is that number different for IDE and SCSI hard drives?
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Jul 14, 2011
How can the number of inodes be increased on an existing EXT3 or EXT4 partition without re-creating the partition?
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May 6, 2010
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Aug 4, 2010
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Jun 4, 2010
I've got 10.04 on a headless server on a home network. I've edited /etc/ssh ssh_config and changed line 39 from:
# Port 22
to:
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I then
user@server$: sudo /etc/init.d/ssh reload
from the host
user@desktop$: ssh servername -p 30000
ssh: connect to host servername port 30000: Connection refused
What am I doing wrong? I've also tried completely restarting the computer.
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Aug 15, 2010
Everyone who deals with Linux knows that partitions on hard drives are designated as "sdx#", i.e., sda1 sdb2, etc. I know through experimentation that the number portion of the designation is assigned not according to order on the disk, but chronologically in the order they are created.
Further, if you have several partitions on the disk-say, sda1 through sda3-and you delete sda2, the designation of sda1 will remain the same, but sda3 will become the new sda2. The creation of any further partitions on the drive will start with designation sda3 and increment from that point.
At times this creates a conundrum, especially concerning bootable partitions. Some time back I rendered a partition containing OpenSUSE unbootable because of this, even though Ubuntu owned the GRUB bootloader in the MBR. Ubuntu's GRUB could find and point to the partition using the command "sudo update-grub", but when OpenSUSE took over the boot-up process, its GRUB was pointed to the wrong partition and would freeze up.
My question is this:
Under Windows, one is able to make a Drive letter persistent. Windows will keep the drive letter for that partition and assign around it. Is there a way to change a drive designation number, or at least make it persistent, under Linux? It would be a handy method to forestall these types of booting problems, among other things.
Presently, when a person has installed Linux side-by-side with Windows and want to delete the Windows partition and expand the Linux partition into the free space, I will tell them to format the partition, then shrink it to next to nothing instead of deleting it. This preserves the partition ID scheme while giving them the space to expand their Linux partition into...especially helpful with a seasoned Linux installation that would be a PITA to reinstall and set back up.
Oh, and I already know about UUID. This article explains it, but if you look down through the comments, you will see reasons that it is problematic for desktop application and usage. I want to make it as simple as possible for new Linux users (and myself! ).
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Feb 1, 2011
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Mar 23, 2010
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Jun 3, 2010
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Sep 10, 2010
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Jul 2, 2011
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Feb 9, 2011
My swag is that my VLC has a memory leak and that is why itkeeps dying on my system while playing audio .m3u Playlists of flac filesVLC 1.1.4 Jan 25 2011, ubuntu 10.10, Dell Lattitude laptop D600This is what I see in the syslog
Feb 9 09:24:12 ubugj-DellD600 kernel: [ 4995.881387] Out of memory: kill process 2353 (vlc) score 239282 or a child
Feb 9 09:24:12 ubugj-DellD600 kernel: [ 4995.881401] Killed process 2353 (vlc)
[code]...
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Jul 30, 2011
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sda1 system
sda2 system-BAK
sdb1 /home
[code]....
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Sep 10, 2010
I just installed Ubuntu on a computer but it can't boot, it ends with a greb-rescue error.
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Le FSTAB
# /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> <dump> <pass>
proc /proc proc nodev,noexec,nosuid 0 0
# / was on /dev/sda5 during installation
UUID=3a307ad3-99a9-4301-8ad0-f601ef9d157c / ext4 errors=remount-ro 0 1
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UUID=5b3ff501-f07c-4c2e-ac2d-a238b599cbe2 none swap sw 0 0
/dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0
SUDO BLKID:
/dev/sda1: LABEL="System" UUID="26AC3F75AC3F3E9D" TYPE="ntfs"
/dev/sda6: UUID="5b3ff501-f07c-4c2e-ac2d-a238b599cbe2" TYPE="swap"
/dev/loop0: TYPE="squashfs"
/dev/sda5: UUID="3a307ad3-99a9-4301-8ad0-f601ef9d157c" TYPE="ext4"
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Apr 21, 2010
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