I'm going to replace damaged HDDs in my server with new drives, which have sector size of 4096 bytes instead of 512. Does CentOS natively support such drives? If yes, since which version? If no, what actions should I take to correctly prepare such a drive to work. How to check that such a drive is correctly recognized by OS?
View 3 RepliesSo when i install ubuntu it gets to 47% and than i get this error message. After that the install doesn't really seem to do much.Code:Device /dev/sbd has a logical sector size of 4096. Not all parts of GNU Parted Support this at the moment, and the working code is HIGHLY EXPERIMENTAL.Now i did search and i found another topic where someone had the same problem. His solution was to reburn the CD and try again. I did that and it still got me the same messageP.S. I do have two boot options now however. One for ubuntu and one for windows though i already ran the uninstall.
View 1 Replies View RelatedIn the past I have been able to succesfully install ubuntu on several external usb drives with up to 500gb in size.Now I am trying to install a copy of ubuntu 10.10 on an external usb iomega 1tb eGo drive but I am having major issues.The installer reports the total disk size as only 124 gb, instead of the 998gb that gParted reports for the same disk. Proceeding with "use the full disk" installs ok, but it doesn't boot.Grub2 reports that it cannot find the kernel.After some desperate attempts to repartition and after some googling I think that the issue may be with the sector size, which fdisk -l reports as 4096kb (all my other drivers report 512kb) and I have the impression that linux is not ready for it (or I lack the knowledge, which seems more likely).I have also tried to install fedora 14. This distribution reports the correct disk size, installs properly, but again, it cannot boot (Fedora uses grub, not grub2), with a very similar message to the grub2 installer.Because of the way I work, I need my external usb drive to be able to boot linux. And I find it difficult to believe that linux doesn't handle 4096kb sector disks, so here I am asking for help . Please note I am not a linux expert.
View 3 Replies View RelatedI am getting a new 4kb sector HDD for my laptop, WD scorpio black 750gb, I would like to image existing partitions on 512bytes sector HDD and move them to the new 4kb sector HDD, what's the best way to do this.
present config is as follows:
Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders, total 156301488 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
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I am planning to keep the same three partitions as the primary partitions on the new drive and add few more logical partitions. I would have liked to move to GPT but since I need Win 7, I am stuck with MBR partiotion table.
Now, I understand how to partition an Advanced format disk, what I want to know is how to move the existing partitions on the 80 Gb disk to the new disk?
I use Clonezilla to copy partitions but it is not compatible unless both the target and the source disks are already using 4096 sector size.
I can use Acronis True Image WD Edition to clone Win 7 but how do I clone Ubuntu?
Also my Laptop's chipset is limited to SATA 1.5, will it cause any issues, I know the bandwidth is not an issue.
create a large buffer in my program so that I can send, and then receive on another pc, more than 4096 bytes (this seems to be the default for the serial port). I thought this might work:
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I recently had to move to a new machine, everything went well except for one thing. I did fresh installation of LAMP server all with default configs. Every time I'm using PHP script to that invokes include, require or require_once I get the following error:
Code: Fatal error: Allowed memory size of 20971520 bytes exhausted (tried to allocate 7680 bytes) in /var/www/index.php on line 2 index.php file: PHP Code:
<?php include "index.php";?>
icukapi.php file:
PHP Code:
<?php echo "test";?>
My memory_limit in php.ini is set to 20M. I tried to increase that however it didn't quite work. PHP seems to allocate all possible space and return that message every time i try. If somebody has an idea of how to fix it I would be more than grateful. I spend quite a long time searching for an answer however the all things i found suggested increating memory_limit which in this case doesn't work.
I'm a Ubuntu 9.10 user and have baught a WD 1.5TB HDD. When just formating it with gparted it's extreemly slow! I have read that with gparted 0.51 there are ways to get this harddrive to work correct but there are no 0.51 packages available for 9.10.
View 9 Replies View RelatedIt's many years since introducing of installation of Linux live CDs like Ubuntu from USB flash drives. I never been able to use such services on my 2GB KingStone flash drive, because it's sector size is 2048 and the famous linux error: "Not all ... support more than 512B sector size". Although I formatted my flash drive many times and even erased the whole partition table and cleared all flash contents with 0xFF values but it still has sector size of 2048.I want to know where the hell those softwares like "USB Startup Disk Creator" in ubuntu and kubuntu and fdisk in almost all linux distro's get to know that the sector size is 2048?
View 2 Replies View Relatedim trying to send pages of 4096 bytes from kernel layer of server to kernel layer of client over a network. previously i tried the foll. code , for data less than a 100 bytes it worked fine , but for something larger than that the computer hangs......(even the dmesg's wont say why) i also wanted to know how we could use the 'sendpage' function to solve this problem.
Code:
CLIENT'S KERNEL MODULE
struct iovec iov;
char buf[1024];
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I have AMD Phenom 8550 triple code processor, with 2.20ghz speed and 4gb ram. I am trying to install Redhat linux 9 first time. I am new to linux. While install system hangs with message
ehci-hcd 00:13.2: PCI device 1002:4396
echi-hcd 00:13.2: irq 10, pci mem f880f800
usb.c: new usb bus registered, assigned bus number 2
PCI:00:13.2 PCI cache line size set incorrectly (64 bytes) by BIOS/FW" expecting 16
how to get rid of this message
Can httpmethod of httpclient support downloading more than 8192 bytes?
If not, any other ways?
Gparted won't let me install Ubuntu 9.10 64 bit. Every time it hangs at 47% and throws a sector size error, something like: doesn't support sector size 2048 and the code is HIGHLY EXPERIMENTAL. My 1TB hard drive exists out of the following partitions:
100MB Windows 7 Reserved
900GB+ Windows 7
30GB EXT4
1MB unallocated space
Is there a workaround for this? I've tried installing Linux Mint and Ubuntu but both gave me the same error.
I bought new hdd (WD2002FAEX-007BA0). This disk have normal block size (512bytes) so I do not bother with the alignment.I trying make test write speed.
Code:
dd if=/dev/zero of=/dev/sda oflag=direct bs=16384 count=100000
100000+0 records in
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I have recently decided to venture into online blogging and other things, and my friend told me wordpress is a great tool for this. I have set up my mysql database, and apache and php are all working fine, and when i copy my wordpress folder into my /var/www/, and edit the config file for my database, i point my browser to[URL] to get it up and running. But i only get the error: "Fatal error: Allowed memory size of 16777216 bytes exhausted (tried to allocate 7680 bytes) in /var/www/wordpress/wp-admin/includes/plugin.php on line 302". Some googleing seems to suggest that this may be a problem with a php.ini file, but im assuming this is a windows based solution, and im not sure where/what a linux alternative is.
View 4 Replies View RelatedAs you are probably aware that WD released new drives ranging from 1TB to 2TB with native support for 4K sector size. And as most of stuff written online is regarding Windows and their support for 4K, my question is has anyone already started to use it under linux?
[url]
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I'm thinking about getting one of these drives:
1TB WD10EARS
or
1.5TB WD15EARS
I'm using Debian Lenny so my questions are: is fdisk automatically recognizes that that drive is 4K drive, or it totally ignores it and partition is as 512byte one? In windows if no 4K support is available it would emulate it and performance would be downgraded. Do I need to enable any specific components in kernel so 4K drive is supported? I wanted to make sure there would be no data loss if I select 4K partition type.
I was attempting to reformat a 16GB MicroSD card in my camera when the battery died mid-way. After that, any time I try to read the card in my camera, it gives me a "Card Error" and does not allow me to reformat it in my camera.
So, I thought I would plug the camera in to the laptop with it set to host the card as media when plugged in as USB, in an attempt to fix the formatting issue.
However, when I plug it in to my linux machine, it does not register as a device (e.g., /dev/sda) due to some errors, therefore I cannot reformat it. Essentially, I think I need to fix the partition table but I'm not sure how to when it doesn't register as a device. code...
Does CentOS 5 support HP EH854A LTO4 External SCSI tape drive?
View 3 Replies View RelatedI have a very very insane problem with my ssd sata harddisk. I did fill the harddisk, and Thunderbird complained about "no space left on device". But even if I delete some files from the harddisk, df will still say 0 blocks free. But it will decrease the number of used blocks. So it looks like it is freeing the blocks and deleting the files, but it don't put the blocks back to the free pool.
But here is where things get insane: If I log in with my normal user, I get a "No free space" when I try to write to the harddisk. But If i log in as root I can write to the file system, despite the fact that df is saying 0 blocks free. I did try to run fsck -f but it just run its test and then say that anything is fine. But it run for less then 10 seconds, is this expected on a 40GB ssd partition?.
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I want to simulate a bad block or sector on a drive or even a virtual drive image to test my data recovery distro. I wish I would have bookmarked when I read about it before. It was some type of low level command, I remember something about scsi subsystem or kernel thingabob.
View 3 Replies View RelatedSo I finally bought an advanced format drive, the 2 TB Samsung f4. I will be using it on my slackware box, running slackware 12.2 with kernel 2.6.27-7. I intend to format the drive by hand with fdisk and start the first partition on sector 2048, or perhaps boot a livecd and format it with a newer version of fdisk or parted that will natively partition this drive correctly. My real question is, do I have to do anything special to add this drive to an existing LVM volume group? I'm thinking no, since LVM basically just breaks all your data into 4 MB chunks and spreads them across the pool of partitions you've defined, but I've found many conflicting opinions from searching google. To simplify things, I'm not using RAID of any sort, neither hardware nor mdraid.
View 2 Replies View RelatedI wanted to check the first sector of my USB stick, and so I issued:dd -if=/dev/sda -bs=1024 -count=1It showed me all the weird characters from the data, then after it executed my bash prompt became corrupted with the same kind of characters! Also, everything I typed was like that. (see the picture)Luckly, it was just that tty that became like that.How can I fix the fonts after something like that happens, and how to prevent it from happening whenever I use dd again?
View 4 Replies View RelatedI just upgraded to Fedora 11. (I decided to give 64bit a try and I am extremely impressed.Not one problem at all! Kudos to the devs.) Whenever I log in I get the Palimpsest Disk Utility telling me two of my hard drives have a reallocated sector count.I have two 1.5Tb Seagate drives (model #: ST31500341AS). One is a backup of the other. On the first disk the disk utility tells me I have 22 reallocated sectors and 53 on the second. I've been on Google on discovered that there is no easy way to fix this and that a few bad sectors are okay but too many is a sign of imminent drive failure. This obviously concerns me because both my main drive and its backup are showing errors.
I went to Seagate's website and downloaded their diagnostic software (Seatools for DOS) and it passed both of these drives.So, questions: is it possible that Fedora is giving me a false positive? If not, is 22 and 53 sectors something to be concerned about? If so, should I contact Seagate and see if I can pull warranty on these drives? Is there a way to repair this damage?
It all started about a week after upgrading to Jessie and I had an unusual system failure, in that the CPU went to 100% usage and the hard drive light was on constantly. The keyboard and mouse were were non-responsive. Not having REISUB enabled I did the "stupid" thing and pushed the reset button on the computer. BAD BOY! As a result the computer would not boot and I had to use a live CD to format the drive and install Wheezy (I had the CD).
After installing Wheezy, everything worked well for about 3 days and then it did the same thing. Fortunately I had REISUB enabled and was able to reboot. I looked at the syslog and found a segfault with colord-sane and, after some research that suggested colord-sane might be a problem, I set UseSane=1 in colord.conf . Things seemed to be okay for about 4 days.
Well, after all that I had another problem today with booting. During boot I got an error message saying that there was some hard drive problem and that I needed to log in and run fsck, which I did . There were I believe 4 INODE errors that I was asked if I wanted to repair, to which I responded yes. After that the system booted correctly. After booting and entering the Gnome Classic desktop I looked at the Disk Utility and checked the SMART data. There is now 1 bad sector where before there were none. The drive is a one year old WD 500GB Velociraptor.
Don't know if this is relevant, but in the days before this latest "crash" I had downloaded about 8 movies using bittorrent. Could this have overtaxed the HDD?
I guess my questions are: When fsck "repaired" the disk would it have moved any data from the bad sector to a new location? What may have caused the sector to go bad ? Should I be buying a new hard drive?
The system seems to boot okay,at this time, so I assume that no critical system files were affected. Just curious as to how I should proceed. First is BACK UP my data. Got that !
One more thing I just thought of is that every time it "crashed", I was using LXDE.
Title says it all, I get that "un..." when trying to convert an .img file to .iso, am I doing anything wrong here?.
View 3 Replies View RelatedWe are currently running Redhat 5.4 64Bit (Build 2.6.18-164.e15) however having issues with tar files that are greater than 2TB in size.
We have been told that upgrading the kernel to support the ext4 file system (supported in version 5.5?) and mounting the current 10TB nas share as an ext 4 file system may solve our over 2TB file size issues. Are their limitations within the ext3 file system that cause issues to files greater than 2TB and if this is the case Do we have to update the kernel (complete rebuild), or can we load a package on the redhat box to support the ext 4 file system Where do we get the upgrade/package. I have logged onto the redhat site and can not find kernel updates but can find the full installation packages. We are not connected directly to the internet and do not have access to the update repository
I have myopia. I read the documents with quite large font size (13). But some of chm viewer such as: kchmviewer, gnochm, xchm, ... open the .chm files with tiny font. I must click the Zoom in, larger button 2 --> 5 times to get the sastified font. Is there any chm viewer support setting for minimum font size?
View 7 Replies View RelatedUpon installing Fedora on my Samsung NC10, I loved it. It feels stable and isn't cluttered with pointless apps. However I was immediately greeted by Palimsest Disk Utility warning me that the 'reallocated sector count' on my hard drive is going bad. I'm not too sure what any of it means but here's the statistics;
ID: 5
Attribute: Reallocated Sector Count
Current: 100
Worst: 100
Threshold: 10
Value: 1 sector
Status: failing
type: pre-fail
status: updates
It also says the temperature is 46 degrees yet the netbook's taken to being very, very hot around the touchpad and under the hard drive.
I am trying to install Ubuntu to an external usb hard drive (WD Elements SE). I am also choosing to install the grub bootloader to this disk (/dev/sdb) because I do not want anything modified on the internal drive. The installation appears to go okay, but when I try to boot to the usb drive, I get the error, "no boot sector on usb device" and it immediately falls back to my interal drive. I have tried this installation with both 10.10 (amd64) and 11.04 (amd64). How can I fix this?
View 7 Replies View RelatedI try to set up a 5 nodes cluster and a shared Coraid Storage with conga but it fails with "Shared Storage Support" checked.The message is:'A problem occurred when installing packages: Packages of set "Clustered Storage" are not present in available repository' and it is shown under every node on the next sceen after I submit.The pc where conga runs is on the same subnet (192.168.xxx.xxx) and it has the same /etc/hosts of the other nodes.In that pc runs a proxy too and the nodes go out through it (that pc has 2 NICs)Every node (2.6.18-128.1.14.el5-xen-x86_64) is patched whith the last yum update (this morning) the same is for the pc (2.6.18-128.1.14.el5).Every node has 4 NICs , 2 NICc towards the storage the others in bonding towards the WAN.Every node is exactly alike, they have been installed with the ks.cfg generated from the first node and they all have the support for Clustering, Virtualization, and Clustered Storage.
View 1 Replies View RelatedI'm setting up a raid 5 on several hard disks with a layer of lvm on top for good measure.I know the recent kernels support growing software raid, but since centos runs 2.6.18, I wanted to make sure it'll work. Does the centos kernel support growing raid devices?
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