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• grub problem after grub-repair

  - by alireza

  I had two OS,win 7 and Ubuntu, I was working with win and went out of the room and when came back I saw Grub Rescue!!! I booted live and did grub_repaire and it still says multiple active partitions.operating system not found I feel that it can not find the ubuntu hard drive at all! ! ubuntu@ubuntu:/dev$ sudo fdisk -l Disk /dev/sda: 320.1 GB, 320072933376 bytes 255 heads, 63 sectors/track, 38913 cylinders, total 625142448 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xde771741 Device Boot Start End Blocks Id System /dev/sda1 * 61 61 0 0 Empty /dev/sda2 2048 30146559 15072256 27 Hidden NTFS WinRE /dev/sda3 * 30146560 30351359 102400 7 HPFS/NTFS/exFAT /dev/sda4 30351360 334483299 152065970 7 HPFS/NTFS/exFAT ubuntu@ubuntu:/dev$ ls autofs dvdrw loop4 ppp ram5 shm tty15 tty29 tty42 tty56 ttyS10 ttyS24 uinput vcsa1 block ecryptfs loop5 psaux ram6 snapshot tty16 tty3 tty43 tty57 ttyS11 ttyS25 urandom vcsa2 bsg fb0 loop6 ptmx ram7 snd tty17 tty30 tty44 tty58 ttyS12 ttyS26 usbmon0 vcsa3 btrfs-control fd loop7 pts ram8 sr0 tty18 tty31 tty45 tty59 ttyS13 ttyS27 usbmon1 vcsa4 bus full loop-control ram0 ram9 stderr tty19 tty32 tty46 tty6 ttyS14 ttyS28 usbmon2 vcsa5 cdrom fuse mapper ram1 random stdin tty2 tty33 tty47 tty60 ttyS15 ttyS29 v4l vcsa6 cdrw fw0 mcelog ram10 rfkill stdout tty20 tty34 tty48 tty61 ttyS16 ttyS3 vcs vcsa7 char hpet mei ram11 rtc tty tty21 tty35 tty49 tty62 ttyS17 ttyS30 vcs1 vga_arbiter console input mem ram12 rtc0 tty0 tty22 tty36 tty5 tty63 ttyS18 ttyS31 vcs2 video0 core kmsg net ram13 sda tty1 tty23 tty37 tty50 tty7 ttyS19 ttyS4 vcs3 zero cpu log network_latency ram14 sda2 tty10 tty24 tty38 tty51 tty8 ttyS2 ttyS5 vcs4 cpu_dma_latency loop0 network_throughput ram15 sda3 tty11 tty25 tty39 tty52 tty9 ttyS20 ttyS6 vcs5 disk loop1 null ram2 sda4 tty12 tty26 tty4 tty53 ttyprintk ttyS21 ttyS7 vcs6 dri loop2 oldmem ram3 sg0 tty13 tty27 tty40 tty54 ttyS0 ttyS22 ttyS8 vcs7 dvd loop3 port ram4 sg1 tty14 tty28 tty41 tty55 ttyS1 ttyS23 ttyS9 vcsa ubuntu@ubuntu:/dev$ someone said { Remove the boot flag from sda1, by typing in a terminal: sudo fdisk /dev/sda1 Then press the 'a' key, and 'Enter'. Then press the '1' key, and 'Enter'. Then press the 'w' key, and 'Enter'. } but after grub-repair I got this log: http://paste.ubuntu.com/1371297/ then I try sudo fdisk /dev/sda1 and But It says unable to open /dev/sda1! which is right as sda1 is not in dev folder (look at the picture!) Can anybody help me? I need to work on my windows for the rest of the semester and don't care of my ubuntu. thank you

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• How can one unlock a fully encrypted Ubuntu 11.10 system over SSH at boot?

  - by Jeff

  In previous versions of Ubuntu, and current versions of Debian, you can unlock a fully encrypted system (using dmcrypt and LUKS) at boot time over SSH. It was as easy as: Installing the encrypted system using the Ubuntu alternate installer disk or normal Debian installer disk and choosing to encrypt the system. After the system is installed, adding the dropbear and busybox packages. Updating the initram-fs to authorize your ssh key. At boot time, you'd just ssh to the machine, and do: echo -ne "keyphrase" > /lib/cryptsetup/passfifo The machine would then unlock and boot the encrypted system. Using the exact same steps on Ubuntu 11.10, I can ssh to the machine, but /lib/cryptsetup/passfifo doesn't exist. There appears to be no way to unlock the system over ssh. I'm not sure where to look to see if this functionality changed or if it was removed.

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• How Do I interpret HDD S.M.A.R.T Results?

  - by Marty

  My laptop has recently started to become a bit unreliable, and for some reason I started to suspect that my HDD was starting to fail. After a bit of hunting on the internet, I found Ubuntu's Disk Utility in the System menu and ran the long SMART diagnostics from this. However, since the documentation for Disk Utility is very poor (palimpsest?), I'm not sure how to interpret the results: For example, the Read Error Rate is over 50 million (!), yet the Assessment is rated "Good". So would someone mind explaining to me how to interpret the results of these tests (especially the Normalized, Worst, Threshold and Value numbers)? And maybe tell me what they think of the results I got for my HDD? (Thanks)

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• This Week in Geek History: HAL Goes Live, First Alien Moon Landing, First Fighter Jet Ejection Seat

  - by Jason Fitzpatrick

  Every week we bring you interesting facts from the annuals of Geekdom. This week in Geek History saw the birth of HAL, the first landing on an alien moon, and the first real-world test of a fighter jet ejection seat. Latest Features How-To Geek ETC HTG Projects: How to Create Your Own Custom Papercraft Toy How to Combine Rescue Disks to Create the Ultimate Windows Repair Disk What is Camera Raw, and Why Would a Professional Prefer it to JPG? The How-To Geek Guide to Audio Editing: The Basics How To Boot 10 Different Live CDs From 1 USB Flash Drive The 20 Best How-To Geek Linux Articles of 2010 Calvin and Hobbes Mix It Up in this Fight Club Parody [Video] Choose from 124 Awesome HTML5 Games to Play at Mozilla Labs Game On Gallery Google Translate for Android Updates to Include Conversation Mode and More Move Your Photoshop Scratch Disk for Improved Performance Winter Storm Clouds on the Horizon Wallpaper Existential Angry Birds [Video]

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• Can't boot Ubuntu 12.04

  - by carlo

  I installed 12.04 on my windows vista laptop. I wanted to make run Ubuntu and ditch windows. I selected to delete disk and install 12.04. It won't let boot 12.04 with out the install disk. When I turn on my laptop now it goes to a black screen with a blinking cursor. I have to power off then insert Ubuntu 12.04 cd as if it wants me to reinstall. I checked the drive and Ubuntu is there with some of my other saves as well. Can someone help me please?

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• How can dev teams prevent slow performance in consumer apps?

  - by Crashworks

  When I previously asked what's responsible for slow software, a few answers I've received suggested it was a social and management problem: This isn't a technical problem, it's a marketing and management problem.... Utimately, the product mangers are responsible to write the specs for what the user is supposed to get. Lots of things can go wrong: The product manager fails to put button response in the spec ... The QA folks do a mediocre job of testing against the spec ... if the product management and QA staff are all asleep at the wheel, we programmers can't make up for that. —Bob Murphy People work on good-size apps. As they work, performance problems creep in, just like bugs. The difference is - bugs are "bad" - they cry out "find me, and fix me". Performance problems just sit there and get worse. Programmers often think "Well, my code wouldn't have a performance problem. Rather, management needs to buy me a newer/bigger/faster machine." The fact is, if developers periodically just hunt for performance problems (which is actually very easy) they could simply clean them out. —Mike Dunlavey So, if this is a social problem, what social mechanisms can an organization put into place to avoid shipping slow software to its customers?

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• Vista: Improving troubleshoot approach skills

  - by Chau

  I'm not a Windows SuperUser, but neither just the regular user. I don't mind browsing the Registry, using Process Explorer, reading the Event logs, (un)installing new drivers and so on, but all this only makes me solve some problems. I tend though to run into problems where these tools aren't enough. Which tools should I learn about to improve my troubleshooting skills in Windows? Currently I'm using Windows Vista x64 (not moved to 7 yet), facing audio/video stuttering problems and I think this is a good place to improve my troubleshooting skills. I know this post is similar to this question, but my machine is only hanging occationally. Specs: Intel Q6600 Stock speed ASUS P5QD Turbo 4GB ram NVIDIA GTS-8800 640 HDA Xplosion 7.1 Seasonic 430W Windows Vista Business x64

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• Meta description of my blog post changes

  - by Aadarsh sojitra

  I have some problems in Meta description tags in my Blogger blog. When I update my pages in search engine with the help of the Fetch as Google feature in GWT, all my blog's results comes with a correct meta description like Today I am back with a reason that "WHY IS ORIGINAL MEMORY IN HARD-DISK IS LESS THAN PRINTED" on a box. If we buy any hard-disk or a pen drive... But after approx 5-6 days, it changes to my blog's default meta description. This is also happening after changing the default meta description of my blog. I want only one answer that why its happening? After deleting my blog and creating a new blog with the same name this problem was solved. Why this problem was solved? - I am asking this question because to solve problems in the future.

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• Remote install of Ubuntu Server

  - by David Walker

  Hi all, I have a machine located 500 miles away that's running Ubuntu 8.04. I figure it's just about time that I upgrade to the latest LTS. However, there's a software raid (md_raid) in there, and I'm afraid that just a dist-upgrade when I switch over the sources.list will end with catastrophic failure. Like a panic on boot that the raid'd disk can't be read, or something else. First, hoping that's not the case, however, if it ends up happening I'm wondering if there's a means of having someone drop in a Ubuntu 10.04 server install disk, and flip on ssh, and some means for me to hop on and re-run the installer remotely. Is this feasible? If so, what would one need to do aside run apt-get install ssh on the target machine? I do have friends who can be in front of the target machine to initiate the process, just not execute it out.

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• KVM Guest installed from console. But how to get to the guest's console?

  - by badbishop

  I'm trying to install a fully virtualized guest (Fedora 14 x86_64) on KVM (RHEL 6), using command-line only (both hypervisor and guest). It goes without errors, and without a tangible result . I'd like to know how to do a text-only installation. So, here's what I've done: # virt-install \ --name=FE --ram=756 --vcpus=1 \ --file=/var/lib/libvirt/images/FE.img --network bridge:br0 \ --nographics --os-type=linux \ --extra-args='console=tty0' -v \ --cdrom=/media/usb/Fedora-14-x86_64-Live-Desktop.iso Starting install... Creating domain... | 0 B 00:00 Connected to domain FE Escape character is ^] ÿ Now what? As I understand after googling for a couple of days, I should see the guest's output from the text installation, but nothing happens. virt-viewer cannot connect to it, kindly suggesting that I explore all the options by adding --help (which I did). If I reconnect with virsh, I see this: Domain installation still in progress. You can reconnect to the console to complete the installation process. [root@v ~] # virsh console FEConnected to domain FE Escape character is ^] This shows that VM is running # virsh list Id Name State ---------------------------------- 8 FE running Qemu log: LC_ALL=C PATH=/sbin:/usr/sbin:/bin:/usr/bin /usr/libexec/qemu-kvm -S -M rhel6.0.0 -enable-kvm -m 756 -smp 1,sockets=1,cores=1,threads=1 -name FE -uuid 6989d008-7c89-424c-d2d3-f41235c57a18 -nographic -nodefconfig -nodefaults -chardev socket,id=monitor,path=/var/lib/libvirt/qemu/FE.monitor,server,nowait -mon chardev=monitor,mode=control -rtc base=utc -no-reboot -boot d -drive file=/var/lib/libvirt/images/FE.img,if=none,id=drive-ide0-0-0,format=raw,cache=none -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 -drive file=/media/usb/Fedora-14-x86_64-Live-Desktop.iso,if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev tap,fd=20,id=hostnet0 -device rtl8139,netdev=hostnet0,id=net0,mac=52:54:00:0a:65:8d,bus=pci.0,addr=0x2 -chardev pty,id=serial0 -device isa-serial,chardev=serial0 -usb -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 char device redirected to /dev/pts/1 Output of /etc/libvirt/qemu/FE.xml # cat /etc/libvirt/qemu/FE.xml <domain type='kvm'> <name>FE</name> <uuid>6989d008-7c89-424c-d2d3-f41235c57a18</uuid> <memory>774144</memory> <currentMemory>774144</currentMemory> <vcpu>1</vcpu> <os> <type arch='x86_64' machine='rhel6.0.0'>hvm</type> <boot dev='hd'/> </os> <features> <acpi/> <apic/> <pae/> </features> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/libexec/qemu-kvm</emulator> <disk type='file' device='disk'> <driver name='qemu' type='raw' cache='none'/> <source file='/var/lib/libvirt/images/FE.img'/> <target dev='hda' bus='ide'/> <address type='drive' controller='0' bus='0' unit='0'/> </disk> <disk type='block' device='cdrom'> <driver name='qemu' type='raw'/> <target dev='hdc' bus='ide'/> <readonly/> <address type='drive' controller='0' bus='1' unit='0'/> </disk> <controller type='ide' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> </controller> <interface type='bridge'> <mac address='52:54:00:0a:65:8d'/> <source bridge='br0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </interface> <serial type='pty'> <target port='0'/> </serial> <console type='pty'> <target port='0'/> </console> <memballoon model='virtio'> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </memballoon> </devices> </domain> I'm obviously missing something that many others don't, but what is it? Thanx in advance!

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• Is it safe to resize root partition?

  - by binW

  My HDD is partitioned into two equal sized partitions. First is being used for Windows and Second for Ubuntu. Everything is working fine. But now I want to remove Windows and use the disk completely for Ubuntu. I can easily boot from live cd and use GParted to delete Windows partition and then expand Ubuntu partition to use the whole hard disk. But I want to know if its safe i.e Will resizing Ubuntu partition change any thing else like the partition UUID or any thing else? Do I need to reinstall grub after resizing the root partition? It would be great if some one who has already done this can give their advice here.

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• Is it true that first versions of C compilers ran for dozens of minutes and required swapping floppy disks between stages?

  - by sharptooth

  Inspired by this question. I heard that some very very early versions of C compilers for personal computers (I guess it's around 1980) resided on two or three floppy disks and so in order to compile a program one had to first insert the disk with "first pass", run the "first pass", then change to the disk with "second pass", run that, then do the same for the "third pass". Each pass ran for dozens of minutes so the developer lost lots of time in case of even a typo. How realistic is that claim? What were actual figures and details?

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• Migrating XenServer VMs from Intel to AMD servers

  - by John Smith

  I need to replace my XenServer 6.1 resource pool hardware. I currently run Intel hardware and I have to move to AMD hardware (corporate politics and budget stuff, blah blah blah). I have downtime available so I can use cold migration - live migration is not required. I will also have the new hardware (AMD) alongside the old hardware (Intel). The XenServer docs say there may be problems exporting from one arch and importing to another "may not work" - http://docs.vmd.citrix.com/XenServer/6.1.0/1.0/en_gb/guest.html#importing_vms - but mentions nothing about simply turning off the VM on one arch and then powering it back on new arch. VMs are a mix of OS - some Windows, some Linux, multiple versions. Is this something that can be done with no problems, or are there problems I need to be aware of?

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• How to restore Windows 7 MBR without a CD

  - by Brandon Bertelsen

  I have been playing with Ubuntu for a few weeks now, and I'd like to revert my computer back to it's original - factory - defaults. On the computer I have a recovery partition (it's a netbook). I went through the process of recovery and everything seemed fine. However, when I restart the computer I'm presented with grub rescue > Now, my understanding is that when I installed Ubuntu "side by side" it replaced the MBR or something like it, with GRUB. I've read on a slew of forums, that I need to use a Windows Recovery Disk. Here are my issues: a) I don't have a recovery disk, I have a recovery partition - it's a netbook. b) I don't have an external cd drive. What I do have is a USB key that has about 1gb of space on it. Thanks in advance.

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• grub2 loopback booting ubuntu server iso

  - by Thermionix

  I've got usb-keys setup to multi-boot different linux images using grub2 loopback. The standard ubuntu release isos boot fine, however when attempting to use the server iso it will fail to install saying 'unable to detect cd-media for installation'. the grub.cfg entry; menuentry "ubuntu-12.04-server-amd64" { set isofile="/boot/ubuntu-12.04-server-amd64.iso" loopback loop $isofile linux (loop)/install/vmlinuz file=$isofile/preseed/ubuntu-server.seed ro noprompt noeject -- initrd (loop)/install/initrd.gz } I've attempted to add the following parameters as the fromiso works for debian images on the key iso-scan/filename=/boot/ubuntu-12.04-server-amd64.iso iso-scan/filename=/dev/disk/by-uuid/2859-44B7/boot/ubuntu-12.04-server-amd64.iso fromiso=/dev/disk/by-uuid/2859-44B7/boot/ubuntu-12.04-server-amd64.iso

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• Sony VAIO is booting directly into Windows without showing grub

  - by Rohan Dhruva

  I bought a new Sony Vaio S series laptop. It uses Insyde H2O BIOS EFI, and trying to install Linux on it is driving me crazy. root@kubuntu:~# parted /dev/sda print Model: ATA Hitachi HTS72756 (scsi) Disk /dev/sda: 640GB Sector size (logical/physical): 512B/4096B Partition Table: gpt Number Start End Size File system Name Flags 1 1049kB 274MB 273MB fat32 EFI system partition hidden 2 274MB 20.8GB 20.6GB ntfs Basic data partition hidden, diag 3 20.8GB 21.1GB 273MB fat32 EFI system partition boot 4 21.1GB 21.3GB 134MB Microsoft reserved partition msftres 5 21.3GB 342GB 320GB ntfs Basic data partition 6 342GB 358GB 16.1GB ext4 Basic data partition 7 358GB 374GB 16.1GB ntfs Basic data partition 8 374GB 640GB 266GB ntfs Basic data partition What is surprising is that there are 2 EFI system partitions on the disk. The sda2 partition is a 20gb recovery partition which loads windows with a basic recovery interface. This is accessible by pressing the "ASSIST" button as opposed to the normal power button. I presume that the sda1 EFI System Partition (ESP) loads into this recovery. The sda3 ESP has more fleshed out entries for Microsoft Windows, which actually goes into Windows 7 (as confirmed by bcdedit.exe on Windows). Ubuntu is installed on sda6, and while installation I chose sda3 as my boot partition. The installer correctly created a sda3/EFI/ubuntu/grubx64.efi application. The real problem: for the life of me, I can't set it to be the default! I tried creating a sda3/startup.nsh which called grubx64.efi, but it didn't help -- on rebooting, the system still boots into windows. I tried using efibootmgr, and that shows as it it worked: root@kubuntu:~# efibootmgr BootCurrent: 0000 BootOrder: 0000,0001 Boot0000* EFI USB Device Boot0001* Windows Boot Manager root@kubuntu:~# efibootmgr --create --gpt --disk /dev/sda --part 3 --write-signature --label "GRUB2" --loader "\\EFI\\ubuntu\\grubx64.efi" BootCurrent: 0000 BootOrder: 0002,0000,0001 Boot0000* EFI USB Device Boot0001* Windows Boot Manager Boot0002* GRUB2 root@kubuntu:~# efibootmgr BootCurrent: 0000 BootOrder: 0002,0000,0001 Boot0000* EFI USB Device Boot0001* Windows Boot Manager Boot0002* GRUB2 However, on rebooting, as you guessed, the machine rebooted directly back into Windows. The only things I can think of are: The sda1 partition is somehow being used Overwrite /EFI/Boot/bootx64.efi and /EFI/Microsoft/Boot/bootmgfw.efi with grubx64.efi [but this seems really radical]. Can anyone please help me out? Thanks -- any help is greatly appreciated, as this issue is driving me crazy!

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• USB3 boot device disappears post-grub

  - by JoBu1324

  I have an installation of Ubuntu 12.10 on a USB3 device, and it occasionally disappears during boot, dropping me into busybox. This is what I've been able to figure out so far: During a single boot, the following happened: At the grub2 menu, I typed c and dropped to the grub> prompt I typed ls -l and got a list of all the devices, including partitions and UUIDs - the USB3 partitions were available I escaped back to the boot select menu, selected the default item (ubuntu) and hit enter The screen went black for a second before turning into the purple Ubuntu boot screen with the dots (which usually indicates that the boot will fail. When all is well I don't get the black screen) The boot dropped into BusyBox v1.19.3 with the message `ALERT! /dev/disk/by-uuid/[uuid] does not exist blkid displays all of the partitions except those of the USB3 device, as does ls /dev/disk/by-uuid or any of the alternatives.

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• How to list missing partitions?

  - by celebrimbor

  I have installed Ubuntu on one of my partition and Crunchbang on the other partition. As I wanted to make some continuous space, I moved Crunchbang partition and then checked fdisk output which looks like this Disk /dev/sda: 320.1 GB, 320072933376 bytes 255 heads, 63 sectors/track, 38913 cylinders, total 625142448 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xc7996dfa Device Boot Start End Blocks Id System /dev/sda1 * 63 80324 40131 de Dell Utility /dev/sda4 81918 625139711 312528897 f W95 Ext'd (LBA) /dev/sda5 81920 211816447 105867264 83 Linux /dev/sda6 299100160 341043199 20971520 83 Linux /dev/sda7 341045248 625139711 142047232 7 HPFS/NTFS/exFAT I cannot see sda2 and sda3 partition. How to find them?

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• GPT Not mounting using "normal" GPT mounting techniques 12.04

  - by Roy Markham

  I've got two 2TB drivess: one MBR and the other GPT. sudo blckid /dev/sdb1 returns a blank. gdisk shows: Partition table scan: MBR: protective BSD: not present APM: not present GPT: present Found valid GPT with protective MBR; using GPT. Warning! Secondary partition table overlaps the last partition by 1970 blocks! You will need to delete this partition or resize it in another utility. Disk /dev/sdb: 3907027055 sectors, 1.8 TiB Logical sector size: 512 bytes Disk identifier (GUID): 38A1113D-B5E9-4B69-ABFF-ACB27AFB3DDD Partition table holds up to 128 entries First usable sector is 34, last usable sector is 3907027021 Partitions will be aligned on 8-sector boundaries Total free space is 2014 sectors (1007.0 KiB) Number Start (sector) End (sector) Size Code Name 1 34 262177 128.0 MiB 0C01 Microsoft reserved part 2 264192 3907028991 1.8 TiB 0700 Basic data partition mounting via fstab or -t gives same error when using NTFS or NTFS-3g "NTFS signature is missing" GParted says one partition is overwriting another, yet windows shows no errors at all. The drive is also mounted easily via MacOs (triple boot)

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• Got back Hibernation option, but cannot resume from Hibernate

  - by harisibrahimkv

  In my Ubuntu 12.04, the hibernation option was working well and fine. However, I installed Debian on another partition recently and when I again tried to boot to Ubuntu, I got a message on the boot splash screen saying : The disk drive for / is not ready yet or not present. Continue to wait; or press s to skip mounting or M for manual recovery. After logging into Ubuntu, I find that my hibernation option has gone missing. Is there anyway to recover the hibernation option? EDIT: I solved the disk drive problem and I got the hibernation option back. When I did "sudo pm-hibernate", my system went to hibernation. However, when powering on again, it booted up normally and thus there was no effect of hibernation. How can this be rectified? EDIT1: System - Lenovo ideapad s10-2. EDIT2: /etc/fstab

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• Ubuntu 12.04 Boot Error

  - by Aman

  My Laptop was working just fine a day back but it started show the following error on booting: error: couldn't read file So, I googled about it and used a Live-CD to use Boot-Repair as told here: "can't read file" error after installation causes system to not boot I was given this link: http://paste.ubuntu.com/1441528/ if there are issues still. I also tried to do it again by a Boot-Repair-Disk this time and now I am getting the following error: error: couldn't read file error: you need to load the kernel first The boot-repair-disk gave me this link: http://paste2.org/p/2609703 if there are further issues.

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• ntfsresize volume and size information

  - by antonio

  I am going to resize my sda2 NTFS partition. When gathering info with ntfsresize, I get: ntfsresize --info /dev/sda2 ntfsresize v2013.1.13 (libntfs-3g) Device name : /dev/sda2 NTFS volume version: 3.1 Cluster size : 4096 bytes Current volume size: 21999993344 bytes (22000 MB) Current device size: 23622320128 bytes (23623 MB) Checking filesystem consistency ... Accounting clusters ... Space in use : 10673 MB (48.5%) Collecting resizing constraints ... You might resize at 10672590848 bytes or 10673 MB (freeing 11327 MB). Please make a test run using both the -n and -s options before real resizing! Can you tell me what is the difference between volume and device size? As for device size, 23622320128 bytes / 1000^2 = 23622.3 MB. Why is 23623 MB reported instead of 23622? Note that parted confirms this value: parted /dev/sda2 unit MB p Model: Unknown (unknown) Disk /dev/sda2: 23622MB Sector size (logical/physical): 512B/512B Partition Table: loop Disk Flags: Number Start End Size File system Flags 1 0.00MB 23622MB 23622MB ntfs

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• Vista x64: Improving troubleshoot approach skills

  - by Chau

  I'm not a Windows SuperUser, but neither just the regular user. I don't mind browsing the Registry, using Process Explorer, reading the Event logs, (un)installing new drivers and so on, but all this only makes me solve some problems. I tend though to run into problems where these tools aren't enough. Which tools should I learn about to improve my troubleshooting skills in Windows? Currently I'm using Windows Vista x64 (not moved to 7 yet), facing audio/video stuttering problems and I think this is a good place to improve my troubleshooting skills. I know this post is similar to this question, but my machine is only hanging occationally. Specs: Intel Q6600 Stock speed ASUS P5QD Turbo 4GB ram NVIDIA GTS-8800 640 HDA Xplosion 7.1 Seasonic 430W Windows Vista Business x64

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• How do I get a rt2800usb wireless device working?

  - by Jii

  My brand new desktop running 13.04 has endless problems with wireless. Dozens of others are flooding forums with reports of the same problems. It worked fine for a few days, then there were a few days where it started having problems sometimes and working sometimes. Now it never works at all. I have 5+ devices all able to connect without any trouble at all, including iPhone, Android phone, 3DS, multiple game consoles, a laptop running windows 7, and even a second desktop machine running Ubuntu 12.04 sitting right behind the 13.04 machine. All other devices have full wireless bars displayed (strong signals). At any moment, one of the following is happening, and it changes randomly: Trying to connect forever, but never establishing a connection. Wireless icon constantly animating. Finds no wireless networks at all. (There are 12+ in range according to other devices.) Will not try to connect to the network. If I use the icon to connect, it will display "Disconnected" within a few seconds. Will continuously ask for the network password. Typing it in correctly does not help. Wireless is working fine. This happens sometimes. It can work for days at a time, or only 10 mins at a time. Various things that usually do nothing but sometimes fix the problem: Reboot. This has the best chance of helping, but it usually takes 5+ times. Disable/re-enable Wi-Fi using the wireless icon. Disable/re-enable Networking using the wireless icon. Use the icon to try and connect to a network (if found). Use the icon to open Edit Connections and delete my connection info, causing it to be recreated (once it's actually found again). Various things that seem to make no difference: Changing between using Linux headers in grub at bootup, between 3.10.0, 3.9.0, or 3.8.0. Move the wireless router very close to the desktop. Running sudo rfkill unblock all (I dunno what this is supposed to do.) I've used Ubuntu for 6 years and I've never had a problem with networking. Now I'm spending all my time reading through endless problem reports and trying all the answers. None of them have helped. I am doing this instead of getting work done, which is defeating the whole purpose of using Ubuntu. It's heartbreaking to be honest. In the current state of "no networks are showing up", here are outputs from the random things that other people are usually asked to run: lspic 00:00.0 Host bridge: Intel Corporation Haswell DRAM Controller (rev 06) 00:01.0 PCI bridge: Intel Corporation Haswell PCI Express x16 Controller (rev 06) 00:14.0 USB controller: Intel Corporation Lynx Point USB xHCI Host Controller (rev 04) 00:16.0 Communication controller: Intel Corporation Lynx Point MEI Controller #1 (rev 04) 00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-V (rev 04) 00:1a.0 USB controller: Intel Corporation Lynx Point USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation Lynx Point High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation Lynx Point PCI Express Root Port #1 (rev d4) 00:1c.2 PCI bridge: Intel Corporation 82801 PCI Bridge (rev d4) 00:1d.0 USB controller: Intel Corporation Lynx Point USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation Lynx Point LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation Lynx Point 6-port SATA Controller 1 [AHCI mode] (rev 04) 00:1f.3 SMBus: Intel Corporation Lynx Point SMBus Controller (rev 04) 01:00.0 VGA compatible controller: NVIDIA Corporation GF119 [GeForce GT 610] (rev a1) 01:00.1 Audio device: NVIDIA Corporation GF119 HDMI Audio Controller (rev a1) 03:00.0 PCI bridge: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge (rev 03) lsmod Module Size Used by e100 41119 0 nls_iso8859_1 12713 1 parport_pc 28284 0 ppdev 17106 0 bnep 18258 2 rfcomm 47863 12 binfmt_misc 17540 1 arc4 12573 2 rt2800usb 27201 0 rt2x00usb 20857 1 rt2800usb rt2800lib 68029 1 rt2800usb rt2x00lib 55764 3 rt2x00usb,rt2800lib,rt2800usb coretemp 13596 0 mac80211 656164 3 rt2x00lib,rt2x00usb,rt2800lib kvm_intel 138733 0 kvm 452835 1 kvm_intel cfg80211 547224 2 mac80211,rt2x00lib crc_ccitt 12707 1 rt2800lib ghash_clmulni_intel 13259 0 aesni_intel 55449 0 usb_storage 61749 1 aes_x86_64 17131 1 aesni_intel joydev 17613 0 xts 12922 1 aesni_intel nouveau 1001310 3 snd_hda_codec_hdmi 37407 1 lrw 13294 1 aesni_intel gf128mul 14951 2 lrw,xts mxm_wmi 13021 1 nouveau snd_hda_codec_realtek 46511 1 ablk_helper 13597 1 aesni_intel wmi 19256 2 mxm_wmi,nouveau snd_hda_intel 44397 5 ttm 88251 1 nouveau drm_kms_helper 49082 1 nouveau drm 295908 5 ttm,drm_kms_helper,nouveau snd_hda_codec 190010 3 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel cryptd 20501 3 ghash_clmulni_intel,aesni_intel,ablk_helper snd_hwdep 13613 1 snd_hda_codec snd_pcm 102477 3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel btusb 18291 0 snd_page_alloc 18798 2 snd_pcm,snd_hda_intel snd_seq_midi 13324 0 i2c_algo_bit 13564 1 nouveau snd_seq_midi_event 14899 1 snd_seq_midi snd_rawmidi 30417 1 snd_seq_midi snd_seq 61930 2 snd_seq_midi_event,snd_seq_midi bluetooth 251354 22 bnep,btusb,rfcomm snd_seq_device 14497 3 snd_seq,snd_rawmidi,snd_seq_midi lpc_ich 17060 0 snd_timer 29989 2 snd_pcm,snd_seq mei 46588 0 snd 69533 20 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device psmouse 97838 0 microcode 22923 0 soundcore 12680 1 snd video 19467 1 nouveau mac_hid 13253 0 serio_raw 13215 0 lp 17799 0 parport 46562 3 lp,ppdev,parport_pc hid_generic 12548 0 usbhid 47346 0 hid 101248 2 hid_generic,usbhid ahci 30063 3 libahci 32088 1 ahci e1000e 207005 0 ptp 18668 1 e1000e pps_core 14080 1 ptp sudo lshw -c network 00:00.0 Host bridge: Intel Corporation Haswell DRAM Controller (rev 06) 00:01.0 PCI bridge: Intel Corporation Haswell PCI Express x16 Controller (rev 06) 00:14.0 USB controller: Intel Corporation Lynx Point USB xHCI Host Controller (rev 04) 00:16.0 Communication controller: Intel Corporation Lynx Point MEI Controller #1 (rev 04) 00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-V (rev 04) 00:1a.0 USB controller: Intel Corporation Lynx Point USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation Lynx Point High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation Lynx Point PCI Express Root Port #1 (rev d4) 00:1c.2 PCI bridge: Intel Corporation 82801 PCI Bridge (rev d4) 00:1d.0 USB controller: Intel Corporation Lynx Point USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation Lynx Point LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation Lynx Point 6-port SATA Controller 1 [AHCI mode] (rev 04) 00:1f.3 SMBus: Intel Corporation Lynx Point SMBus Controller (rev 04) 01:00.0 VGA compatible controller: NVIDIA Corporation GF119 [GeForce GT 610] (rev a1) 01:00.1 Audio device: NVIDIA Corporation GF119 HDMI Audio Controller (rev a1) 03:00.0 PCI bridge: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge (rev 03) sudo iwconfig eth0 no wireless extensions. lo no wireless extensions. wlan0 IEEE 802.11bgn ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:on sudo iwlist scan eth0 Interface doesn't support scanning. lo Interface doesn't support scanning. wlan0 No scan results NOTE: This dmesg was done after a reboot where the network manager was continuously displaying the "disconnected" message over and over. So it must have been trying to connect at this time. My network was displayed in the list of options, as the only option despite other devices picking up 12+ access points. The router channel is set to auto. dmesg | tail -30 [ 187.418446] wlan0: associated [ 190.405601] wlan0: disassociated from 00:14:d1:a8:c3:44 (Reason: 15) [ 190.443312] cfg80211: Calling CRDA to update world regulatory domain [ 190.443431] wlan0: deauthenticating from 00:14:d1:a8:c3:44 by local choice (reason=3) [ 190.451635] cfg80211: World regulatory domain updated: [ 190.451643] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) [ 190.451648] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 190.451652] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) [ 190.451656] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) [ 190.451659] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 190.451662] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 191.824451] wlan0: authenticate with 00:14:d1:a8:c3:44 [ 191.850608] wlan0: send auth to 00:14:d1:a8:c3:44 (try 1/3) [ 191.884604] wlan0: send auth to 00:14:d1:a8:c3:44 (try 2/3) [ 191.886309] wlan0: authenticated [ 191.886579] rt2800usb 3-5.3:1.0 wlan0: disabling HT as WMM/QoS is not supported by the AP [ 191.886588] rt2800usb 3-5.3:1.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP [ 191.889556] wlan0: associate with 00:14:d1:a8:c3:44 (try 1/3) [ 192.001493] wlan0: associate with 00:14:d1:a8:c3:44 (try 2/3) [ 192.040274] wlan0: RX AssocResp from 00:14:d1:a8:c3:44 (capab=0x431 status=0 aid=3) [ 192.044235] wlan0: associated [ 193.948188] wlan0: deauthenticating from 00:14:d1:a8:c3:44 by local choice (reason=3) [ 193.981501] cfg80211: Calling CRDA to update world regulatory domain [ 193.984080] cfg80211: World regulatory domain updated: [ 193.984082] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) [ 193.984084] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 193.984085] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) [ 193.984085] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) [ 193.984086] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 193.984087] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) The router uses MAC filtering, and security is WPA PSK with cipher as auto. So, any ideas? Or is the solution just to not use 13.04 unless you have a wired connection? (I don't have this option.) If so, please just tell me straight. I survived 9.04 Jaunty, and I can survive 13.04 Raring. Update #1 Results from trying Wild Man's first answer: jii@conan:~$ echo "options rt2800usb nohwcrypt=y" | sudo tee /etc/modprobe.d/rt2800usb.conf options rt2800usb nohwcrypt=y jii@conan:~$ sudo modprobe -rfv rt2800usb rmmod rt2800usb rmmod rt2800lib rmmod crc_ccitt rmmod rt2x00usb rmmod rt2x00lib rmmod mac80211 rmmod cfg80211 jii@conan:~$ sudo modprobe -v rt2800usb insmod /lib/modules/3.10.0-031000-generic/kernel/lib/crc-ccitt.ko insmod /lib/modules/3.10.0-031000-generic/kernel/net/wireless/cfg80211.ko insmod /lib/modules/3.10.0-031000-generic/kernel/net/mac80211/mac80211.ko insmod /lib/modules/3.10.0-031000-generic/kernel/drivers/net/wireless/rt2x00/rt2x00lib.ko insmod /lib/modules/3.10.0-031000-generic/kernel/drivers/net/wireless/rt2x00/rt2800lib.ko insmod /lib/modules/3.10.0-031000-generic/kernel/drivers/net/wireless/rt2x00/rt2x00usb.ko insmod /lib/modules/3.10.0-031000-generic/kernel/drivers/net/wireless/rt2x00/rt2800usb.ko nohwcrypt=y I tried: gksudo gedit /etc/pm/power.d/wireless but I didn't have the package. It said to install gksu. I tried that, but of course, not having Internet, I didn't get the package. So instead I did: sudo gedit /etc/pm/power.d/wireless Which created the file. Here is the body: #!/bin/sh /sbin/iwconfig wlan0 power off I then rebooted. No change. I tried adding exit 0 to the bottom of the wireless file, and rebooted. No change. Please note that this is a desktop machine. I'm assuming power management is primarily for laptops, but the iwconfig does state that power management is on, so who knows. The recommended router changes I did not do, since the current router settings are (I think) required for some of the older devices I have, and because the current settings work on all my modern devices including Ubuntu 12.04 and Windows 7. I do appreciate the advice though, and I'll look into it when I have time. Anything else to try? Update #2 I booted into Ubuntu 12.04.3 from a dvd, and the same problems exist. I have a separate old desktop machine with 12.04 installed that has no wireless problems at all. So obviously the problem is wireless hardware compatibility in both 12.04.03 LTS and 13.04. Update #3 The same problems exist even when using a wired connection. I plugged an ethernet cable directly to the router and the network manager added an "Auto Ethernet" entry, but it cannot establish a connection to it. So the problem is not specific to wireless. Meanwhile, I purchased a Trendnet N300 wireless USB adapter, TEW-664UB. I plugged it in, but I have no idea how to get Ubuntu to try and use it. Can anyone tell me how? Can I download a package on another computer and copy the .deb over to do an install, etc? I'm installing windows 7 to double check that the internet connection works there and it's not just some magically faulty hardware. Thanks for your help.

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• monitor screen dead.....not even shows bios screen

  - by megatronous

  Re: /host/ubuntu/disks/root.disk does not exist :( ALERT! /host/ubuntu/disks/root.siak does not exist. Dropping to a shell! BusyBox v1.15.3 (Ubuntu 1:1.15.3-1ubuntu5) built-in shell (ash) (initramfs) alll thought the above problem was solved my issue now is..when i booted my pc again after this solving this to solve the above problem i had pressed e in the grub menu then corrected the partition then after starting i did sudo grub-update then i made some automatic update updates then in next reboot......my screen had gone blank .... and i am not even able to see bios screen....in the start ...the monitior just stays blank..................i have even tried disconnectiong my hard disk but still not able to get the display......solution required ....urgently.....

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