I have added noatime option to /etc/fstab file but when i try to reboot, it cannot mount the file system.
I try to erase the noatime option in /etc/fstab file but it does not allow for write because it is only a read only file system.
How can i mount with write access which allow me to delete the noatime option in /etc/fstab.
I was trying to know if relatime or noatime was set on a filesystem, but i didn't found the information, neither in /etc/fstab, neither in kernel boot options.
First of all, it seems clear that i don't have the "normal" behaviour on atime:
root@antec:/tmp# rm -f test.txt; echo a>test.txt
root@antec:/tmp# stat test.txt | grep -i 2011
Access: 2011-08-01 21:54:30.000000000 +0200
Modify: 2011-08-01 21:54:30.000000000 +0200
[Code]....
- Is noatime or relatime a default mount options, and if yes, from which kernel release ?
- Is there a way to see the default mount options (ie: how can i see why i don't have the "normal" atime behaviour ?)
I have an SSD and I'm trying to set noatime to save writes. I didn't do this at the time of install, so I edited /etc/fstab later on. I noticed, however, that when I right-click on a file and view its properties, it still gives me a "modified" and "accessed" time. Did I do something wrong? Here is my fstab:
Code:
/dev/disk/by-id/ata-INTEL_SSDSA2M080G2GN_CVPO0161048A080JGN-part1 / reiserfs acl,user_xattr,noatime 1 1
[code]....
I installed 11.04 after Windows 7. when the GRUB boot menu starts up there is an option for Win 7 boot but it will not boot windows. When that option is selected the screen changes colour for 2 seconds and then reverts to the GRUB menu. Ubuntu boots fine.I downloaded the Boot Info Script and ran it, the results are
Code:
Boot Info Script 0.55 dated February 15th, 2010
============================= Boot Info Summary: ==============================[code].....
I currently have this filesystem for my live squid server. Can I remount it to add noatime while the cache is being used?
[root@ ~]# cat /proc/mounts
rootfs / rootfs rw 0 0
/dev/root / ext3 rw,data=ordered 0 0
/dev /dev tmpfs rw 0 0
/proc /proc proc rw 0 0
/sys /sys sysfs rw 0 0
/proc/bus/usb /proc/bus/usb usbfs rw 0 0
devpts /dev/pts devpts rw 0 0
/dev/sda3 /var ext3 rw,data=ordered 0 0
/dev/sda1 /boot ext3 rw,data=ordered 0 0
tmpfs /dev/shm tmpfs rw 0 0
none /proc/sys/fs/binfmt_misc binfmt_misc rw 0 0
sunrpc /var/lib/nfs/rpc_pipefs rpc_pipefs rw 0 0
/etc/auto.misc /misc autofs rw,fd=7,pgrp=2586,timeout=300,minproto=5,maxproto=5,indirect 0 0
-hosts /net autofs rw,fd=13,pgrp=2586,timeout=300,minproto=5,maxproto=5,indirect 0 0
nodev /dev/oprofile oprofilefs rw 0 0
/dev/sda2 /var/spool/squid reiserfs rw 0 0
Remount:
mount -o noatime,remount,rw /dev/sda2
After searching the boards, I dug through the udev man pages and rule files looking for a way to modify the default automount options for USB flash drives. Apparently, the options are somewhere else. Is there a simple way to add noatime to the default mount options?
Currently, the flash drive is automounted as follows:
I'm using Fedora 12, beta RC 2 in case that makes a difference.
If the filesystem is mounted with noatime option does it influence find -atime behaviour? I tested and it looks that find is able to see access time but why should it if mounted with noatime? Or maybe it depends on the type of filesystem (I`m using XFS)?EDIT: Looks the answer is [URL]htmlIf a file system has been mounted with this option, reading accesses to the file system will no longer result in an update to the atime information associated with the file like we have explained above. The importance of the noatime setting is that it eliminates the need by the system to make writes to the file system for files which are simply being read. Since writes can be somewhat expensive, this can result in measurable performance gains. Note that the write time information to a file will continue to be updated anytime the file is written to.
View 1 Replies View RelatedI am attempting to try install XUbuntu.
I loaded the dvd (one that came with Linux Format Magazine No. 139), changed BIOS to boot from dvd, and then:
I get the welcome screen with the options to boot Ubuntu, KUbuntu, XUbuntu or Boot from First Hard Disk. As I have an older laptop I was going to try XUbuntu. However, the arrow keys did not change the boot option. In fact nothing worked, Tab did not bring up a menu and Enter did not initiate boot.
I tried reloading the dvd, switching off the laptop (no way to shutdown) and restarting but always come up with the same problem.
My DVD drive works fine and the dvd appears not to be faulty since all the info is readable when it is loaded with windows running.
My system details are:
HP compaqnx9000
Mobile Intel Pentium(R) 4-m CPU 2.20 GHz 219GHz 704MB RAM
Optiarc DVD RW AD-7580A
Radeon 1GP 340M
I have set up a simple find and delete script for files older than X days. The problem is that some of the files that are send in this share are transfered from an archive server and creation/modified date remains the same when copied and the age of them could be a year ago or older and they get deleted over night by the script.For performance reasons the raid is mounted with noatime in fstab.Do you see any solution to this problem except enabling atime?I'm thinking at some more advanced script that writes the list of added files once a day and marks them for deletion after some time.
View 2 Replies View RelatedI've set up a triple boot system (Ubuntu Karmic, Windows Vista and OSX86 -- a patched OS X which works on a PC) on a Dell 9200 (C2D 2.13 GHz, 4GB RAM, nVidia G210). I sue Grub2 as the bootloader and update-grub picks up OS X and it boots without any problem.
However, although when booting OS X using its own Darwin bootloader, I can apply the boot option "Graphics Mode"="1680x1050x32" to ensure that I get the screen resolution that I want, when OS X boots from Grub2, the only resolution available is 1024x768 which is disappointing. I have tried adding gfxmode=1650x1050x32 to the OS X section of /boot/grub/grub.cfg in Ubuntu but this does nothing.
I have an HTPC that dual boots Ubuntu 9.10 (upgraded from 9.04, so still using GRUB 1.x) and Windows (for Netflix duties). I recently rebooted the machine to watch some Netflix movies, only to discover that the GRUB menu no longer has an option to boot Windows.I imagine that this could have happened after an apt-get upgrade installing a new kernel; it has been a while since I rebooted the machine and could have missed it.
View 3 Replies View RelatedI've just installed 10.04 and its the best distribution i've seen yet! But I can no longer switch between windows and ubuntu like I have in previous installs. I get the normal boot screen options which are something along the lines off.
Boot ubuntu 10.04
recover ubuntu 10.04
restore factory default settings of your Toshiba machine
but no option to boot into windows, I can still access all my files and settings from within Ubuntu, so i haven't overwritten Windows
I have windows 7 installed to one hd, and installed Ubuntu to another internal. The install went well, and when it was done, it said it had to restart. But upon restarting, i wasnt give the option to boot ubuntu. It just keeps loading windows. I went back to my bios and chose to boot from both hd's, but nothing is happening. With the hd with ubuntu on it, it wont load up.
View 9 Replies View Relatedi have ubuntu 10.04 server on a usb (it is an .img file) , and i.m trying to install it on an ancient machine (64mb of ram to be exact), and it has no usb option in the bios menu.
View 8 Replies View RelatedI installed Jolicloud in a new partition to give it a try. It's pretty nice. Anyway, it took over my bootloader, which didn't really bother me.
Now my kernel has automatically been updated to 2.6.35-22.41 or something. The option to boot from the new kernel does not appear. As you might imagine, I want to do that. My old bootloader updated this stuff automatically.
I have just installed Ubuntu 11.04 alongside Windows 7. Once the install was complete it asked me to restart and when it went to boot i never got the choice in which OS i wanted to start. How can I fix this?
View 7 Replies View RelatedI'm sorry to post so much, but every time I solve one problem another comes up! xD
Anyways, I created an install CD for the newest Ubuntu, and the CD works. I used it to install Ubuntu, but when I went to reboot to complete the setup, it just went back to Windows normally. Then when I booted from the CD directly, bypassing Windows entirely, my monitor displayed "No sync" and refused to display anything until I turned off all power to the computer and restarted into Windows normally.
How can I make it so that it will boot to Ubuntu?
I'm trying to install Ubuntu as a dualboot, i also have Windows XP. But during the installation, when this screen should appear
(Translation)
(*) Dualboot, choose at startup
( ) Empty and use complete harddisk
( ) Use biggest connected space
( ) Manually adjust partitions.
I get a screen with only 2 options, the second and forth. How do I get the Dualboot option?
When I insert the ubuntu CD, there is no option when booting to boot from CD. it automatically starts Windows. I have changed the boot configuration and set my CD/DVD drive as the primary booting device.
View 2 Replies View Relatedwhen I tried to boot into my PC yesterday, it would run through the normal loading process until it got to the login screen. There it loaded the splash screen,but the login box never comes up. I have rebooted several times, tried recovery, and run several reconfigure gdm options I have seen on the forums. Nothing seems to work.
I have restarted gdm, it goes back to the same screen again. If I startx, I was able to get to a desktop with several things missing, and unable to go into anything that required sudo permission. Also, the shutdown and restart optons were grayed out in the menu.
I was wondering to restore on old laptop to working order. This laptop is an old early 2000's Sony Viao, which I found in the trash. Still powers on, and can boot the latest Ubuntu LiveCD. The issue is that it did not have a harddrive in it, and I really do not want to shell out money for a drive for a laptop this old, but would still like to bring it back into service as a thin client or general purpose web/email terminal. The BIOS does NOT have a USB boot option, and every tutorial I have seen requires that in order to boot Ubuntu from a USB stick (which is what I do have). What I am wondering is, is there any way to just keep the LiveCD in the drive and use that to boot the kernel, etc, and then have it look for the rest of the filesystem on the USB stick?
View 6 Replies View RelatedI was running Ubuntu 10.04 as my only OS. I then booted from the Ubuntu CD and divided my HD into two partitions, one for my Ubuntu and the other I formatted to NTFS so I could load Windows. I booted from the Windows CD and installed Windows on the second partition. I am now unable to boot into Ubuntu and I do not have a boot menu at start-up to choose what OS I want. I went back in with my Ubuntu CD and selected the "bootable" option for both partitions through Disk Utility but it still boots only to Windows. If I change the Linux partition to "bootable" and deselect that option from the NTFS partition, my computer starts up and then give the error, "No operating system present." What do I have to do in order to have a boot menu show up that will allow me to choose what OS to use at start-up?
View 3 Replies View RelatedI put windows 7 on my desktop which is a dell E521. I had windows vista on their previously and had a dual boot setup on it. When I installed win 7 on I just did the upgrade so I wouldn't have to reformat my hardrive and now when I boot up it will not show the option to boot into windows or ubuntu.
View 6 Replies View RelatedHere is the log for what I have already done: Downloaded ubuntu.iso for my 64bit Sony Vaio Burned DVD System showed 2 option Windows 7 and Ubuntu (to boot from DVD) Booted to live Ubuntu from DVD (using option 2)Installed Ubuntu along with my existing Windows 7 After installing Ubuntu, system is still showing 2 options viz. Windows 7 and Ubuntu. On taking option 2 (Ununtu)...it says Not able to find a media with live boot... I think it is pointing to my DVD drive. How can I get the option to boot to Ubuntu installed on my system?
View 1 Replies View RelatedMy misses wanted XP putting back onto her laptop, which had Ubuntu 10.04 installed using the whole drive. So I created a partition for it, and install XP onto it, but now it now longer gives me the option to choose between Ubuntu or XP. I know I need to reinstall GRUB but I am not sure on how to do it. Can anybody give me a step by step guide on how to do this please?? The simplest the better because I am not too hot on Ubuntu, unfortunately.
View 3 Replies View Relatedibm a31 2 gig ram and the nasty ati mobile 7500x graphic 10.04
been working like a charm. booting up flawlessly to desktop and then I decided to change my backround and now when I boot I get just past the ubuntu with the dots screen and then a mostly black with a few white and red scratches. if I go to recovery and then start x, boot up is flawless.
I'm in exactly the same sticky state. Was running my new Ubuntu 10.10 build alongside my original Windows 7 partition, but now the Windows 7 boot option has disappeared following a trip to the update manager Tried the Update Grub2 command to no avail. (e.g. sudo update-grub) What is weird is that I now have two Ubuntu boot options i.e.
"Ubuntu, with linux 2.6.35-23-generic"
"Ubuntu, with linux 2.6.35-23-generic" (Recovery Mode)
"Ubuntu, with linux 2.6.35-22-generic"
"Ubuntu, with linux 2.6.35-22-generic" (Recovery Mode)
"Memtest86+"
I ran the same boot_info_script from as per a similar post (and above) in the hope you wizened peeps may see something I clearly can't. p.s. I'm as noob as they come and fearful of most areas of linux at this point.
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i need win7 to run a rip software for my new roland printer, but i want to use and learn ubuntu for personal use. i tried installing win7 then installing ubuntu next to it. now when i start the laptop it only starts ubuntu and there is no option for win7.
View 9 Replies View RelatedI used unetbootin to create my bootable usb with 10.10 for netbook. I am trying to install ubuntu on my brand new fresh out of the box Asus Eee PC 1018P but the problem is when I hit esc during the boot to get to bios to select boot from usb, the usb doesn't show up as an option. I also tried hitting f2 and making it an option to boot from usb but that doesn't seem to work either.
View 3 Replies View Relatedhave just installed Ubuntu alongside Windows 7. I just went along with the manual set-up all through the install. I was expecting to see an obvious option on starting up my computer as to whether to run Ubuntu or Windows but it just goes right ahead and runs windows exactly as it did before the install.
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