Fedora :: Partition 1 Does Not End On Cylinder Boundary?
Feb 11, 2010
I've been searching for a definitive answer/solution for this. Below are outputs from fdisk -l and a partition table listing from expert mode in fdisk. [root@ncc1701 ~]# fdisk -l /dev/sda
Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x000265ce
Device Boot Start End Blocks Id System
/dev/sda1 * 1 39 307200 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2 39 60801 488076288 83 Linux
[Code]...
Some posts that I've come across indicate no problem while others indicate that it is an issue and needs to be corrected. sda1 is my /boot partition ~ 300MB and then sda2 is a LUKS volume with a LVM VG occupying the rest of the available 500GB hdd. It is my active F 12 system with no dual boot.
1. Is it a problem? 2.Can I just resize sda1 so the end does not overlap sda2? 3. And can I do this while booted from that system or do I need to do it from a LiveCD?
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Nov 12, 2010
i was looking at the list of my /dev/sda partition and on the first partition it says that it does not end on cylinder boundary. does is it need to be fixed? on a book that im reading it says that when you create a partition the end cylinder should be the size of the partition...
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Feb 22, 2011
I am preparing a dual boot system. Used gparted to do the partitioning. Unfortunately did not notice that one can choose to align on MB (default) or cyl (probably preferable) Now my setup is running ok but fdisk reports warnings like Partition 4 not on cylinder boundary
Looking up the net I see two conflicting views on this:
1. Forget it -- cylinders are not relevant on today's disks
2. For linux this is ok but windows may clobber the adjacent partition in such a 'non-aligned' partition
The real problem is that parted, gparted, fdisk etc are mutually inconsistent in what kind of partition table is 'good' and I dont know who to believe
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Mar 3, 2011
I have a 500g hard drive using dual boot win7 and ubuntu 10.04.2. The system is boot from MBR using Grub1.98. The partitioned as the follows:
system reserve100m ｜win7,42g｜software 100g｜empty 100g｜extended 253g
logic partition is as follows:
| ubuntu / 250g | swap 4g
Since I want to make use of the "empty" part. I delete it and the "software" partition under win7. Then I create a new partition on the part.
After I reboot my pc, the screen shows:
>> operating system no such partition.
[Code]...
how to resize my partition table so I can KEEP MY DATA on the ubuntu / partition. Or someway I can get my ubuntu / partition back.
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Mar 13, 2011
While trying to get Grub working on my computer, I accidentially overwrote the partition table. Luckily I did a fdisk -l and copied the information before I did anything. The problem is that the first partition "does not end on cylinder boundary" so when I recreated the partition info using fdisk, partition 2 doesn't start in the right place and cannot be read. I have some pretty valuable data on there and I can't afford to lose it. Is there a way to create a partition that doesn't start on a cylinder boundary?
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Aug 22, 2011
fdisk -l: Disk /dev/sda: 750.2 GB, 750156374016 bytes.
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I've tried other installations, but I always get errors like this. /dev/sda 5, 7 and 8 are occupied by PCLinuxOs. /dev/sda 9, 10, 11 and 12 by Fedora. I made room for Linux installations by GParted (last version). Really, I made no errors. The installer of PCLOS is a bit strange: it changed the NTFS partition sda5 in sda 6! In a previous installation with Fedora and Kubuntu only the extend partition sda 4 complained about not starting on physical sector boundary. The hard disk is Western Digital with Advanced Format. Probably this is the cause of the problem. The systems are snappy and responsive. I do not encounter any problem. What to do? Ignoring the problem or reinstalling? May be it would be better to get rid of PCLOS and to dual boot Windows with Fedora?
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Jan 16, 2011
I have installed 10.04 LTS on a few computers lately (stuck at home due to recent surgery and am trying to kill some time) and have been running into some odd issues and cannot figure out what is going on. I am hoping someone can help me out here. The installation appears to work fine every time. The systems also appear to be running without any issues. The weird thing is that every time I run an fdisk -l command, I always get these types of messages:
Disk /dev/sda: 3221 MB, 3221225472 bytes
255 heads, 63 sectors/track, 391 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0005437b
[Code]...
cfdisk also gives similar errors:
FATAL ERROR: Bad primary partition 1: Partition ends in the final partial cylinder. I am not doing anything out of the ordinary when installing Ubuntu (as far as i can tell that is). I am not pre-partitioning with external tools for example. I use the Ubuntu installer to setup my partitions.
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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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Oct 9, 2010
"You could not allocate the cylinder based partition". I am getting above error while trying to create disk partition in disk partitioning while Redhat installation.
i want to use dual boot system....windows 2003 and Redhat.Win 2003 is installed on 'C:' in my primary hard drive.i have one more hard drive on secondary IDE.secondary HDD having 13 GB unallocated partition. and i want to install Redhat on this partition. But while trying to create disk partition i am getting error "You could not allocate the cylinder based partition". it this time i can create only root or swap partition. plz tell me whats to do in such case.
If i create root partition of 11 GB and leave 2 GB for swap, then can i create swap partition after installation is finished. if yes the plz tell how to do this? Or i can allot 13 GB for Root partition and once installation finished i can create 2 GB swap partition from this 13 GB? Also i will like to know what kind of partitions i need to create at the time of installation????
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Aug 30, 2010
Below is a print out of my partition Table from Fdisk, in Cylinder mode, Sector mode, and then in expert mode?
Why in expert mode does it look like Partitions 2 and 3 share the same sector / hd / Cylinders? Is this OK?
Code:
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Jun 7, 2010
To backup files residing on my system, I've been using mkisofs to create an empty iso file, and then populating it using growisofs: (in an empty directory)
Code:
> mkisofs -graft-points -iso-level 2 -joliet -joliet-long -udf -full-iso9660-filenames -R -o myiso.iso .
> growisofs -M myiso.iso -r -J -use-the-force-luke=4gms <filetoadd>
This was working well for isos to be written to a single-layer DVD, but when I tried to add more data meant to be written to a dual-layer disc, I get this:
":-( next session would cross 4GB boundary, aborting..." I've done some searching and it seems that -use-the-force-luke should have helped, but doesn't. I assume the problems lies with mkisofs in creating an empty iso, but not sure how to get around it. I've only started dabbling with these tools in the past few days. Is it possible to create an empty iso with growisofs, or is there another way of creating an iso file that can contain enough data for a dual-layer disc? I really would like to be able to populate an empty iso as there are scripts involved & the availability of data being backed up might not be available immediately (data being sent for backup from other teams, for example).
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Feb 6, 2010
Why is it telling me that my hard drive cylinder head count isn't supported by bios when I've been using this hard drive with this bios for over a year? I mean Linux is booting off the hard drive this is supposedly unsorted apparently and managing telling me is unsupported... so it can't be that unsupported now can it? Sounds more like linux trying to blame bios for linux's problem.
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Aug 9, 2010
COmpiz does not have the option. if this is a nooby question im new 2 ubuntu
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Oct 23, 2010
I have a 64bit desktop and 64bit laptop. I upgraded both to 10.10 and they both have the same problem with compiz. Even though I selected the cylinder distortion, the rotating desktops will not deform to a cylinder unless I select "Wallpaper" in compiz but when I do that, the cylinder is completely transparent AND objects (like windows or bouncing/squishing icons in AWN appear not to refresh. Like a window will not disappear after closing.
As an aside, I have four different wallpapers selected for the four different desktops, but none of them display when I select "Wallpaper" in compiz, I just get the transparent cylinder.
If I deselect "Wallpaper" in compiz, the problem with the refresh disappears immediately, as does the transparent wallpapers but the cylinder becomes disabled and I am left with a cube with a single wallpaper and no ability to decrease opacity during rotation.
This has happened with both my desktop and laptop. I have tried uninstalling all compiz components in Synaptic Package Manager and adding them back one at a time in case I added some conflicting components but this doesn't seem to help.
I did not change settings in the updates, so I have to assume that the problem has something to do with a bug in Compiz. The two computers have different video cards and the drivers are up to date, so I'm at a loss.
Has anyone else found this problem? Has anyone been able to display the cylinder distortion with four desktops with different wallpapers?
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Sep 24, 2010
For the GParted partitioning options, when creating or changing a partition on a SATA hard drive, which option is best to use; (align to cylinder, or to MiB )? The newest version of GParted I used, and it did default to "align to MiB, which then created 1 MB gaps between some partitions. Is it better to have no gaps, and is this new version safe to use to move and or resize NTFS windows partitions ? Will it include the boot sector when it moves or resizes ntfs ?
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Aug 13, 2010
" Selected cylinder exceeds maximum supported by bios " I got this errot message when i tried to select Ubuntu ( 9.04 ) from a dual booting menu I dont know how to solve this problem
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Feb 10, 2011
I just installed Squeeze on a 4 disk system, each disk set up identically with 4 partitions, with the last partition of each disk used for a raid 5 array. I used the squeeze installer, and chose the 'manual' partition option for this setup.
After installation, fdisk reports the ending cylinder number of each of the 4 disks as one more than the total number of cylinders for the disk. I've never seen this before. In the past when I've used fdisk to manually partition disks, the final cylinder number was always equal to the total number of cylinders.
For example:
Disk /dev/sdd: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000937dd
[Code]...
The disk has 60801 cylinders, and the 'End" cylinder number for /dev/sdd4 is reported as 60802. I would have expected it to be 60801. Is this a bug or problem? It's working OK, but I don't know if it will cause instability in the future.
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Mar 29, 2009
I just downloaded the Fedora 10 cd yesterday and decided to install it. I had a partition for Fedora on my system before but I'm not really sure what I did to it. It wasn't booting and it has been so long since I messed with it I just decided to reinstall with the latest (I think I was running F9 previously). So I pop in the live CD, run the install, and then reboot into Ubuntu. I modified my menu.lst to include the new vmlinuz and initrd versions, as well as the new UUID of the partition. Now when I reboot and choose Fedora from grub's menu I get this error:
Quote:
Error 18: Selected cylinder exceeds maximum supported by BIOS
I found this wiki which does a pretty good job describing the problem:
[URL]
However, I'm still unable to get this to work. According to many different sites out there this problem shouldn't exist on newer computers. Well, I just recently put a new motherboard into this box -- it's this one:
[URL]
According to their BIOS page the first release of this was late November 2008. Yes they have had 2 updates since then but it looks like those only serve to support AM3 CPUs (which I don't have) or update some audio playback issues. I seriously doubt I need to update my BIOS to get this to work.
Here's my fdisk:
Code:
$ sudo fdisk -l
Disk /dev/sda: 400.0 GB, 400088457216 bytes
255 heads, 63 sectors/track, 48641 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
[code]....
I can get Slackware 12.1 to boot (though it kernel panics during startup...not sure what I did to make it angry), but grub immediately fails when I attempt to boot Fedora. Here's the entry from menu.lst:
Quote:
titleFedora 10 (on /dev/sdb1)
root(hd1,0)
kernel/boot/vmlinuz-2.6.27.5-117.fc10.i686 ro root=UUID=178bc9f9-76ba-48aa-a588-de978cc1eee1 rhgb quiet
[code]...
I have verified that the vmlinuz and initrd are both correct. I put the UUID in there after running vol_id so I'm sure the entry is solid. I have tried making it "root=/dev/sdb1" which failed with the same error, and I even tried copying the fc10 vmlinuz and initrd files over to my Ubuntu partition (which controls grub) but for some odd reason the cp command takes a really long time and then I eventually get this weird error for initrd:
Quote:
$ sudo cp /media/sdb1/boot/initrd-2.6.27.5-117.fc10.i686.img .
cp: reading `/media/sdb1/boot/initrd-2.6.27.5-117.fc10.i686.img': Input/output error
I got the same error with the dd command too. So I was going to just try and copy the files to my sdb3 partition and then modify the menu.lst entry appropriately but that doesn't seem to be plausible at this point.
I have a motherboard that was just released about 4 months ago, an Athlon X2 6000+ CPU, and 4gigs of RAM. The drives are both SATA 300 drives...it's not like this is some old Pentium Pro and the BIOS just doesn't support large drives...this is a brand new system with a very recent BIOS version.
I have successfully quadruple booted all of these in the past, but that may have been prior to the new motherboard. So that makes me think it could be something related to the motherboard but the thing is so much newer than what I previously had, certainly that can't be the problem...can it? Then I remember that Slackware boots, so if it's truly something about how the BIOS can't access some file beyond a particular section of the disk, then it doesn't make any sense that it can book slackware. Fedora is the first partition, Slackware is the last and is like 200+ GB into the disk.
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Dec 12, 2009
Error 18 - Selected cylinder exceeds maximum supported by BIOS
I am running Jaunty Jackalope on a new machine and after a recent update I got the following message when trying to reboot:
Error 18 - Selected cylinder exceeds maximum supported by BIOS
After reading some of the info on Grub error 18 I decided to create a separate boot partition, as suggested. However, when trying to use Gparted from the live CD to create some space ahead of /sda1, Gparted would run for a while and then crash. The crash message says:
"e2fsck crashed with SIGSEGV in qsort" So now I am stuck, unable to boot from HDD and unable to create new partitions (the other partitions on the disk work fine with Gparted). Could all of this be due to corrupt /sda1 partition?
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Feb 25, 2011
I was just reading about the whole boot process on computers and am curious as to why the BIOS can only read and execute code and data from only cylinder 0, track 0 and sector 1 of the disk being booted from? Why can't the BIOS read from any other disk location?
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Aug 5, 2011
I am completely new to Linux in general, and have recently downloaded Fedora 15 KDE spin. I tried dual-booting between Windows 7 and Fedora by shrinking one of my Windows partitions (I have two, this partition not containing the Windows installation). I tried shrinking it to 30 GB less than the total space available on the partition, and after pressing continue, received an error (which I unfortunately dismissed quickly and can't remember). In the file manager, Fedora showed that my partition changed from 1.3Tb to 1.2 Tb, but I couldn't access it. Upon rebooting into Windows, I still can't access it, receiving a "format drive before use" popup and then error stating that it is possibly of a different filesystem or corrupt.
Unfortunately, I stupidly didn't backup any of my data (which I will be sure to remember to do in the future). I installed EASEUS Partition Master 8.0.1 Home Edition, which states that my drive is still of NTFS filesystem and has the total space it should. However, upon clicking "check drive," it states there are no errors and when trying to "explore files," it doesn't find any (yet it shows the correct amount of used and unused space). I then tried running TestDisk, but only allows me to check my media drive E, which is my dvd drive that has my Fedora Live CD in it (which cannot be ejected manually or through Windows, an error stating it cannot be ejected). I didn't go through with TestDisk for my DVD drive because I needed to verify the type of partition (which to my knowledge shouldn't even exist). It shows 700 something MiB / 600 something MiB. Although I have decent general knowledge about computers, I am a complete novice when it comes to doing something like this.
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Aug 5, 2010
Immediately after the grub menu disappears I get the following error msg: Error 18 Selected cylinder exceeds maximum supported by BIOS. Sometimes the grub options come up again (in Text mode) ...all works fine Sometimes just start via "Failsafe", reboot...all works fine. What is happening here and what would be the right procedure to avoid this happening again.
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Jun 22, 2011
I installed Redhat Enterprise 3 on one of my servers. In my haste I didn't properly partition both Hard Drives and only properly partitioned one of them. Thus now I have
/dev/sdb1 478711768 137858256 316536328 31% /
/dev/sda1 101089 15346 80524 17% /boot
Where /dev/sda1 is actually a 80 GB hard drive. Is there anyway I can safely and easily repartition the unpartitioned space without causing a huge mess? I have a very important Oracle database on /dev/sdb1 and thus I want to be able to back it up on the second disk. I can create a partition on that drive?
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Apr 19, 2010
Recently I reinstall Grub, but I have chosen on ntfs (windows 7 partition E: drive). After this I chosen /dev/sda which is correct boot partition.
Now Fedora 10 and Win 7 booth are working properly.
How can I get back my E: drive safely?
In Fedora 10 E: is not available, where as in Win7 it is available but asking for Format.
how to get back my E: partition which was chosen wrongly as boot partition.
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Aug 24, 2010
I installed fedora 13 64 bit and it works great but I encountered several issues when setting up guest OS with KVM. The problem seems to be related to selinux. But let me first ask question about logical volume. By Default fedora created logical volumes:
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"If you expect that you or other users will store data on the system, create a separate partition for the /home directory within a volume group. With a separate /home partition, you may upgrade or reinstall Fedora without erasing user data files." seems to suggest I have to create a separate physical partition and assign that to /home. But reading elsewhere it seems to suggest logical volume acts like a partition. My goal is to make it easy in case fedora is hosed and I have to re-install it without affecting /home where my cirtical data resides. Given above do I need to create a separate physical partition or I am just fine?
I have a second hard disk that originally had windows and all my data. Windows is hosed but I can see my data from within Fedora and Windows is gone and I created created new partition in its place which used ot be the C:/ drive appears as 53 Gb filesystem. My data which was originally D drive appears as 215 GB filesystem. As given in [URL] I want to create a new logical volume in 53 Gb filesystem which I want to use as space for virtual disk to install guest OS's in KVM. Currrently 53 GB filesystem is mounted as /media/3467BH89JK789 but this does not work well with KVM. how do I create this logical volume out of 53 Gb filesystem partition and add proper selinux info and do I add to vg_vostrolx volume group and in a different volume group?
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Jul 2, 2011
i had installed fedora 14 into my new hardisk(1500gb) as new server the problem is how can i use the fdisk to partition the hardisk into two partition.
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Jun 13, 2011
I would like to create Logical partition in Extended partition using fdisk in Fedora 14 I created extended but fail to create logical partition.
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May 27, 2011
I installed Debian stable and I see these errors in the xsession error file
/etc/gdm3/Xsession: Beginning session setup...
GNOMEKEYRINGCONTROL=/tmp/keyring-j0E6Br
SSHAUTHSOCK=/tmp/keyring-j0E6Br/ssh
GNOMEKEYRINGCONTROL=/tmp/keyring-j0E6Br
[code]....
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Jul 27, 2009
I have a brand new thinkpad X301 with 4GB of RAM and thinking of getting fedora 11 on it. The plan is to have it triple boot with vista/seven and hopefully OSx86. I am aware of the 4 primary partitions limit on an MBR disk. I was thinking of having a swap file instead of swap partition and not creating a boot partition as well. If I install the boot loader(GRUB?) on the root partition will I be able to boot it without any problems by using vista's boot loader?
Or Maybe I should install GRUB on the MBR and add all the other operating systems on it? Does anyone have any objections for not creating a swap partition or a boot partition? When comes to desktop environment I've been using KDE in the past, is there any major advantage of using Gnome over it? KDE seems to look really nice on fedora where Gnome is maybe more stable?
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Jul 20, 2010
I have C: and D: on my computer. the D drive has 250 GB of free space. I would like to install it on the D drive without harming my existing windows. I have booted through an USB and it has an icon that says "install fedora on your hard disk". How do I make sure that it will be installed only my D drive without harming my windows?
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