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  • Lost files after installing Ubuntu

    - by Joshua Rosato
    I installed Ubuntu on my laptop over windows, I had 2 partitions on one hard disk. It seems like my second partition is gone with all my files. How can I recover the old files? They weren't on the same partition as Windows. I read that the partition has probably just not been mounted so ran sudo fdisk -l to find all the partitions and then ran sudo mount, however I can't tell from the results of sudo mount what is not mounted and I am also unsure how to mount it once I find the unmounted partition. sudo fdisk -l - Results Disk /dev/sda: 250.1 GB, 250059350016 bytes 255 heads, 63 sectors/track, 30401 cylinders, total 488397168 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: 0x0002c6dc Device Boot Start End Blocks Id System /dev/sda1 * 2048 486322175 243160064 83 Linux /dev/sda2 486324222 488396799 1036289 5 Extended /dev/sda5 486324224 488396799 1036288 82 Linux swap / Solaris sudo mount - Results /dev/sda1 on / type ext4 (rw,errors=remount-ro) proc on /proc type proc (rw,noexec,nosuid,nodev) sysfs on /sys type sysfs (rw,noexec,nosuid,nodev) none on /sys/fs/cgroup type tmpfs (rw) none on /sys/fs/fuse/connections type fusectl (rw) none on /sys/kernel/debug type debugfs (rw) none on /sys/kernel/security type securityfs (rw) udev on /dev type devtmpfs (rw,mode=0755) devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755) none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880) none on /run/shm type tmpfs (rw,nosuid,nodev) none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755) none on /sys/fs/pstore type pstore (rw) systemd on /sys/fs/cgroup/systemd type cgroup (rw,noexec,nosuid,nodev,none,name=systemd) gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,user=joshy1)

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  • How to reduce the fan noise and how to increase battery life?

    - by mehdi
    I have a brand new Sony Vaio S series laptop.(VPCSA2DGX) It came factory installed with Windows 7 professional Edition 64bit. Runs Intel core i5, 500 GB HDD , 4GB Ram. First I installed ubuntu 11.10 64 bit along side Windows to dual boot. Later,since the problem did not solve, I installed ubuntu 12.04 64bit along side Windows to dual boot. However the problem keeps annoying me. Problem: When running ubuntu 11.10/12.04, the battery lasts only about 1.5 hours. The Fan runs loud and continuously. And there is a lot of heat generated. System monitor shows less than 5% CPU used. My laptop enjoys hybrid graphic and I tried turning off ADM graphic card and keep Intel graphic card on. However I can not get the Fan noise or heat to go away and consequently the battery drain continues. BTW, in windows, the laptop gives 4-5 hours of battery power, Fan is silent and there is no heat problem. Any ideas on how to reduce the fan noise and how to increase battery life in ubuntu 11.10/12.04?

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  • Newly installed Ubuntu 12.10 and weird graphics

    - by Benji Marshall
    My machine: 2 GB RAM Intel Pentium Dual core E2180 @ 2 GHz NVIDIA GeForce 6200 LE My friend had recommended Ubuntu to me and I thought I might as well get used to Linux in anticipation for my Raspberry Pi. He said that Wubi was the easiest way to install and I installed it using Wubi. On my first ever boot up of Ubuntu from the Windows Bootloader started normally, and I logged on in a normal fashion, and my desktop loaded normally. I then pressed the Windows key/Power key and everything went wrong. Random lines of yellow and blue appeared on my screen, and changed location when I moved my mouse. The lines stayed for a few seconds and then partially went to I could sort of use my computer. I tried moving my mouse and the entire desktop looked like it broke apart, fragments of it just scatter across my screen at random angles. I could move my mouse and the pointer would move but clicking did nothing. I had to turn off my machine by removing the plug. I would love to get off Windows, but at least the doesn't completely mess up the graphics, and is relatively usable. Please help me solve this....

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  • Cannot boot into ubuntu 12.10

    - by sriram
    Below given are the steps which I followed to install ubuntu 12.10 with existing windows 8 in my machine. I downloaded ubuntu 12.10 into my disk and made it bootable from my usb by selecting that iso file. Then restared my mahine and in BIOS I selected boot from usb. Went into Linux os and selected install ubuntu alongside windows 8. It asked for memory allocation and I selected 550 GB for Ubuntu and 404GB for Windows. After that it completed ubuntu installation. The booted into my windows 8 and used easyBCD to add a new entry. Ubuntu grup2 Now the easyBCD shows, There are a total of 4 entries listed in the bootloader. Default: Windows 8 Timeout: 10 seconds EasyBCD Boot Device: C:\ Entry #1 Name: Lenovo Recovery System BCD ID: {e58d0cb6-2eae-11e2-9d20-806e6f6e6963} Device: \Device\HarddiskVolume3 Bootloader Path: \EFI\Microsoft\Boot\LrsBootMgr.efi Entry #2 Name: EFI USB Device BCD ID: {e58d0cb5-2eae-11e2-9d20-806e6f6e6963} Device: Unknown Bootloader Path: Entry #3 Name: Windows 8 BCD ID: {current} Drive: C:\ Bootloader Path: \windows\system32\winload.efi Entry #4 Name: Ubuntu 12.10 BCD ID: {6f173570-3bce-11e2-be74-c0143dd589c0} Drive: C:\ Bootloader Path: \NST\AutoNeoGrub0.mbr Next I restarted my system and in the boot options it shows windows 8 and ubuntu 12.10 When I click on ubuntu it displays, \NST\AutoNeoGrub0.mbr status 0xc000007b The application or operating system cold not be loaded because a required file is missing or contains errors. Can you help me resolve this... Thanks :)

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  • Why is my root filesystem always scanned at boot?

    - by luri
    I always have a pause at boot saying my filesystems are being checked (with a "press C to cancel" note, too). Actually (seeing boot.log) I think it's the / fs, which is located at /dev/sdb5 Several questions altoghether, here (hope this does not break any rule): Is this normal? Can I (or even should I) prevent this anyhow? According to boot.log (below) the fs does not seem to be 'clean', or, at least, it's in an state or condition that makes fsck always can it for errors for a while (just a few seconds). How can I fix it? Edit: This is my boot.log: fsck desde util-linux-ng 2.17.2 udevd[515]: can not read '/etc/udev/rules.d/z80_user.rules' /dev/sdb5: 249045/32841728 ficheros (0.3% no contiguos), 20488485/131338752 bloques init: ureadahead-other main process (1111) terminated with status 4 init: ureadahead-other main process (1116) terminated with status 4 Password: * Starting AppArmor profiles [160G Skipping profile in /etc/apparmor.d/disable: usr.bin.firefox [154G[ OK ] * Setting sensors limits [160G [154G[ OK ] And this is dumpe2fs results for the filesystem being checked (well, the relevant part of the log): Filesystem volume name: <none> Last mounted on: / Filesystem UUID: 42509bf9-f3e6-460a-8947-ec0f5c1fbcc8 Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize Filesystem flags: signed_directory_hash Default mount options: (none) Filesystem state: clean Errors behavior: Continue Filesystem OS type: Linux Inode count: 32841728 Block count: 131338752 Reserved block count: 6566937 Free blocks: 110850356 Free inodes: 32592701 First block: 0 Block size: 4096 Fragment size: 4096 Reserved GDT blocks: 992 Blocks per group: 32768 Fragments per group: 32768 Inodes per group: 8192 Inode blocks per group: 512 Flex block group size: 16 Filesystem created: Fri Dec 10 19:44:15 2010 Last mount time: Mon Feb 14 17:00:02 2011 Last write time: Mon Feb 14 16:59:45 2011 Mount count: 1 Maximum mount count: 33 Last checked: Mon Feb 14 16:59:45 2011 Check interval: 15552000 (6 months) Next check after: Sat Aug 13 17:59:45 2011 Lifetime writes: 331 GB Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 256 Required extra isize: 28 Desired extra isize: 28 Journal inode: 8 First orphan inode: 28049496 Default directory hash: half_md4 Directory Hash Seed: d3d24459-514b-4413-b840-e970b766095b Journal backup: inode blocks Journal features: journal_incompat_revoke Tamaño de fichero de transacciones: 128M Journal length: 32768 Journal sequence: 0x0005e0c4 Journal start: 1 This is the relevant (at least I think this is the fs being checked) line in fstab: #Entry for /dev/sdb5 : UUID=42509bf9-f3e6-460a-8947-ec0f5c1fbcc8 / ext4 errors=remount-ro 0 1

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  • Youtube video streaming slow

    - by Newbie
    When I try to stream youtube videos on my ubuntu 11.04, they don't stream smoothly. They buffer well and are choppy. Here's my Config: Laptop: Gateway NV58 Ram : 4 GB Ethernet Controller: Broadcom Corp NetLink BCM5784M Gigabit Ethernet PCIe (rev10) Let me know if you need more details. Output of lspci: 00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07) 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) 00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) 00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03) 00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03) 00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03) 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03) 00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03) 00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 03) 00:1c.2 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 3 (rev 03) 00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03) 00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03) 00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03) 00:1d.3 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03) 00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93) 00:1f.0 ISA bridge: Intel Corporation ICH9M LPC Interface Controller (rev 03) 00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI Controller (rev 03) 00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03) 02:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5784M Gigabit Ethernet PCIe (rev 10) 04:00.0 Network controller: Intel Corporation WiFi Link 5100

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  • Unknown filesystem with GRUB rescue caption cannot boot

    - by Dom
    I just recently partitioned my hard drive and I got this error when booting Ubuntu on that drive. unknown filesystem followed by the GRUB rescue terminal. I did some research and tried to download super grub disk but I cant seem to fix it with that. I have two hard disks. One with Windows Vista on it and the other with Ubuntu which is the one I partitioned. There was 100 GB reserved for all the Ubuntu partitions that I needed and the rest was split into two partitions, one for backup folders for my Windows machine and the other for music production which is the one that I created. The space used to created that was shrunk from my backup partition so I didn't mess with any of the Ubuntu partitions. As of now there are a total of 5 partitions. I also downloaded Rescatux which is another Super GRUB Disk for GRUB 2 not knowing which grub I had. It still didn't work. In Super Grub Disk I tried to swap the hard disk because that was what was said to do in order to fix the grub, that didn't work it said it was unsuccessful. I even tried to unplug the Windows hard disk and run Super GRUB Disk and that wasn't successful either. Is there another way I can fix this? Please any help would be greatly appreciated. I would like to have a nice step by step response.

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  • Sharing swap space between Windows and Ubuntu

    - by Leftium
    This Linux Swap Space Mini-HOWTO describes how to share swap space between Windows and Linux. Do these instructions still apply to Ubuntu in 2011? How should I modify the steps for Ubuntu? Is there a better approach to sharing swap space? Based on the HOWTO, it seems best to create a dedicated NTFS swap partition: Dedicated so the swap file will be contiguous and remain unfragmented. NTFS so both Windows and Ubuntu can read/write to it. (Or is FAT32 better for this purpose?) Then, configure Ubuntu to prepare the swap space for use by Linux on start up; by Windows on shut down. I want to dual boot Ubuntu and Windows 7 on my X301 laptop. However, my laptop only has a 64 GB SDD, so I would like to conserve as much disk space as possible. update: There is an alternate method using a special driver for Windows that let you use a Linux swap partition for temporary storage like a RAM-disk, but it doesn't seem to be as good...

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  • How do I install Ubuntu 12.04 PPC on a PowerPC G4 from commands line or fix the graphical mode?

    - by Gerardo Rodríguez
    Good afternoon. I'm new to this Linux world so I hope someone can help me . I recently got a Mac as a gift, a PowerPC G4 , which has 1GB of RAM but came with no optical drive or hard drive. So I put a dvd burner and a hard drive of 40 GB I got. Then download an iso of Ubuntu 12.04 for PowerPC and burned onto a CD. I'm trying to install from Open Firmware ( as I haven't a Mac keyboard, I use one standard ) . Finally, the Installation CD boots , but on live mode and after the Ubuntu 12.04 screen I get a message that there is a problem with my graphics adapter but I can continue with minimal graphics and give me the command line . My question is that how do I install through a text or if there is any way to fix this problem to run the graphical mode and so can continue the installation of Ubuntu, and if once installed Ubuntu the problem will be fixed or what? I would appreciate if you help me , as I mentioned before, there is almost nothing of Ubuntu but I think it will be easier than trying to get the Mac OS X proper . Spend good.

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  • How can a usb be detected but not show up anywhere?

    - by George Mauer
    I started the morning by trying to create a bootable usb using a 2gb stick and the startup disk creator. It seemed to run through the whole process just fine until it got to a screen that read something like "Creating memory partion" and which sat on 100% for about 45 minutes before I hit cancel and removed the usb stick. Now the usb stick is not being detected as storage or...anything (even on my windows pc) though it does show up in the syslog. Allow me to demonstrate. We start with the usb not plugged in: [georgemauer@ubuntu:~]$ sudo fdisk -l (04-04 16:01) Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 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: 0x994bdc0f Device Boot Start End Blocks Id System /dev/sda1 2048 27650047 13824000 27 Hidden NTFS WinRE /dev/sda2 * 27650048 27854847 102400 7 HPFS/NTFS/exFAT /dev/sda3 27854848 976771119 474458136 7 HPFS/NTFS/exFAT I plug in the usb: [georgemauer@ubuntu:~]$ tail -f /var/log/syslog ***Snip*** Apr 4 15:01:18 ubuntu wpa_supplicant[1136]: WPA: Group rekeying completed with 00:24:36:ad:e7:3f [GTK=TKIP] Apr 4 15:02:29 wpa_supplicant[1136]: last message repeated 3 times Apr 4 15:02:29 ubuntu kernel: [22122.788133] usb 2-1: new high speed USB device number 13 using ehci_hcd Apr 4 15:02:29 ubuntu kernel: [22122.923873] scsi10 : usb-storage 2-1:1.0 Apr 4 15:02:29 ubuntu mtp-probe: checking bus 2, device 13: "/sys/devices/pci0000:00/0000:00:13.2/usb2/2-1" Apr 4 15:02:30 ubuntu mtp-probe: bus: 2, device: 13 was not an MTP device Apr 4 15:02:30 ubuntu kernel: [22123.926154] scsi 10:0:0:0: Direct-Access GENERIC USB Mass Storage 1.00 PQ: 0 ANSI: 2 Apr 4 15:02:30 ubuntu kernel: [22124.105118] sd 10:0:0:0: Attached scsi generic sg1 type 0 Apr 4 15:02:30 ubuntu kernel: [22124.108212] sd 10:0:0:0: [sdb] Attached SCSI removable disk but then: [georgemauer@ubuntu:~]$ ls /mnt -alF (04-04 16:02) total 8 drwxr-xr-x 2 root root 4096 2011-04-21 12:51 ./ drwxr-xr-x 26 root root 4096 2012-03-31 13:16 ../ [georgemauer@ubuntu:~]$ ls /media -alF (04-04 16:03) total 8 drwxr-xr-x 2 root root 4096 2012-04-04 12:18 ./ drwxr-xr-x 26 root root 4096 2012-03-31 13:16 ../ What could be going on and how do I recover my usb key?

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  • What is the advantage to using a factor of 1024 instead of 1000 for disk size units?

    - by Joe Z.
    When considering the disk space of a storage medium, normally the computer or operating system will represent it in terms of powers of 1024 - a kilobyte is 1,024 bytes, a megabyte is 1,048,576 bytes, a gigabyte is 1,073,741,824 bytes, and so on. But I don't see any practical reason why this convention was adopted. Usually when disk size is represented in kilo-, mega-, or giga-bytes, it has to be converted into decimal first. In places where a power-of-two byte count actually matters (like the block size on a file system), the size is given in bytes anyway (e.g. 4096 bytes). Was it just a little aesthetic novelty that computer makers decided to adopt, but storage medium vendors decided to disregard? Whenever you buy a hard drive, there's always a disclaimer nowadays that says "One gigabyte means one billion bytes". It would feel like using the binary definition of "gigabyte" would artificially inflate the byte count of a device, making drive-makers have to pack 1.1 terabytes into a drive in order to have it show up as "1 TB", or to simply pack 1 terabyte in and have it show up as "931 GB" (and most of them do the latter). Some people have decided to use units like "KiB" or "MiB" in favour of "KB" and "MB" in order to distinguish the two. But is there any merit to the binary prefixes in the first place? There's probably a bit of old history I'm not aware of on this topic, and if there is, I'm looking for somebody to explain it. (Apologies if this is in the wrong place. I felt that a question on best practice might belong here, but I have faith that it will be migrated to the right place if it's incorrect.)

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  • NVIDIA proprietary driver logging me to console instead of GUI

    - by Woozie
    Firstly i want to apologise for any mistakes, English is not my native language. My problem is I can't get NVIDIA proprietary drivers to work. I tried to install it on Ubuntu 12.04.1 32 and 64 bits, Ubuntu 12.10 Beta 2, Linux Mint 13 Cinnamon 64 bits and openSUSE 12.2 64 bits and the error code and symptoms (logging to tty1 instead of GUI logging, low-res bootscreen) are the same for all of these distros. Right, I didn't tell what's the error code. It appears on sudo startx. NVIDIA: could not open the device file /dev/nvidia0 (Input/output error). I know that's the common problem, but I tried to blacklist or even remove the noveau drivers, install NVIDIA driver from repo/from official script/in "Additional drivers", editing xorg.conf and using Xorg -configurate and nvidia-xconfig, actualizing the kernel and entire distro and many, many things that I don't remember. But the problem is even better: entire Cinnamon (Mint) is freezing during the work. I found the error code, which appears during the freeze: Oct 1 20:57:17 WoozieLaptop kernel: [ 308.120176] [drm] nouveau 0000:01:00.0: PFIFO_CACHE_ERROR - Ch 4/1 Mthd 0z0060 Data 0xbcef0201 My Xorg.0.log is here. It was made on Ubuntu 12.04.1 after installing NVIDIA drivers (obviously). inxi -G from Mint: Graphics: Card: NVIDIA GT216 [GeForce GT 240M] X.org: 1.11.3 drivers: (unloaded: nvidia) FAILED: nouveau,vesa,fbdev tty size: 80x25 Advanced Data: N/A for root out of X lspci -k | grep -A2 VGA from Mint: 01:00.0 VGA compatible controller: NVIDIA Corporation GT216 [GeForce GT 240M] (rev a2) Subsystem: Lenovo Device 38ff Kernel driver in use: nvidia My hardware is: Lenovo IdeaPad Y550 Intel C2D T6600 NVIDIA GeForce GT 240M 4 GB of RAM Any help will be appreciated. This problem totally disabled my laptop from daily using. Cheers, Woozie

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  • Book to Help OBI11g Developers by Mark Rittman

    - by Mike.Hallett(at)Oracle-BI&EPM
    Normal 0 false false false EN-GB X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Mark Rittman has published an extensive up to date Developer’s Guide for Oracle Business Intelligence 11g. For a great summary of what you can get from this new book have a quick look at the review posted here by Abhinav Agarwal.

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  • Partner OBI 11g 5-Day Hands-on Training Workshop

    - by Mike.Hallett(at)Oracle-BI&EPM
    Normal 0 false false false EN-GB X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi; mso-fareast-language:EN-US;} 14 - 18 January 2013, Oracle Reading (UK) REGISTER HERE NOW This 5 day hands-on workshop provides attendees a hands-on experience to practice with OBI11g environment. Participants will gain in-depth understanding of new architecture of OBIEE 11g, security mode, installation/configuration as well as reporting aspects like new ROLAP/MOLAP style hierarchical browsing, new chart types, Action Framework and Visualization. Please note that attendees are required to have a laptop.  This training is only for OPN member Partners. View here laptop requirements and detailed agenda.

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  • Zero bytes on home partition

    - by Michael Z
    I decided to replace the hard drive on my machine running Ubuntu 12.04 LTS . After using the new hard drive for a few days, I noticed that the new hard drive has bad sectors. So I decided to plug my old hard drive back in. First, I plugged both hard drives in and copied some data files from the new hard drive to the old one. After unplugging the new hard drive, I booted the computer with the old hard drive, and here I got a surprise: I can see 0 bytes available on my /home partition! The df utility shows that the /home partition has 0 available bytes. I have tried to move some files. But I still has 0 bytes on /home! However, GParted correctly shows that the available size is near 2Gb. UPDATE 1: To my surprise, System Monitor shows me that approximately 2 Gb are free and 0 bytes are available on the /home partition. It's slightly shocked me! Are "free" and "available" not the same? Any help is really appreciated!

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  • Cannot Restore GRUB (Ubuntu 11.04 + Win 7)

    - by Benny
    I'm trying to fix GRUB on my PC, but I'm running into serious issues doing so. Any help would be greatly appreciated as I'm completely crippled right now. Here is the sequence of events for this PC: Installed Windows 7 Split full disk into two partitions (one for win7 and one for multimedia) Long time passed Split one of the partitions into two again Installed Ubuntu 11.04 on new partition A little time passed Windows 7 acting up, reinstall Ubuntu GRUB gone Tried restoring GRUB by mounting and grub-install from live USB Tried switching to a live CD instead of USB (thinking it might be the drive) Now I don't see GRUB and I'm getting "input/output" errors An example i/o error: ubuntu@ubuntu:~$ sudo fdisk -l Disk /dev/sda: 750.2 GB, 750156374016 bytes 255 heads, 63 sectors/track, 91201 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: 0xbe86aff6 Device Boot Start End Blocks Id System /dev/sda1 * 1 48727 391393280 7 HPFS/NTFS /dev/sda2 48727 77063 227612647+ 7 HPFS/NTFS /dev/sda3 77063 91202 113566721 5 Extended /dev/sda5 77063 90622 108908544 83 Linux /dev/sda6 90622 91202 4657152 82 Linux swap / Solaris ubuntu@ubuntu:~$ sudo mount /dev/sda5 /mnt ubuntu@ubuntu:~$ sudo grub-install --root-directory=/mnt /dev/sda mkdir: cannot create directory `/mnt/boot': Input/output error ubuntu@ubuntu:~$ cd /mnt ubuntu@ubuntu:/mnt$ ls ls: cannot access etc: Input/output error

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  • Accessing second hard drive

    - by Jonathan
    Hi, So I recently installed Ubuntu 10.10 64-bit on my computer. I installed it on my 60gb SSD hard drive, and in the installation it never acknowledged the existence of my second hard drive. The hard drive that I keep all my files on, and which I want to make my home folder if I can, is a Western Digital Caviar Black 1TB SATA 6Gb/s 64MB cache (WD1002FAEX). I've read the following: https://help.ubuntu.com/community/Mount but honestly cannot work out how to access the hard drive from my Ubuntu installation. I did have Windows 7 64-bit prior to installing Ubuntu. I have backed up all the files on the hard drive, but if I could just access them straight off that would be super cool. Does anyone know how I can use the second hard drive? Thank you for your help EDIT: The following directories are currently in my /dev/ folder: ati/, block/, bsg/, bus/, char/, cpu/, isk/, input/, mapper/, net/, pktcdvd/, pts/, shm/, snd/, and usb/ EDIT: Result from sudo fdisk -l Disk /dev/sda: 60.0 GB, 60022480896 bytes 255 heads, 63 sectors/track, 7297 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: 0x000d2dfd Device Boot Start End Blocks Id System /dev/sda1 * 1 6994 56174592 83 Linux /dev/sda2 6994 7298 2438145 5 Extended /dev/sda5 6994 7298 2438144 82 Linux swap / Solaris

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  • One of the partion on a usb harddisk cannot automount

    - by holmescn
    It is a very strange problem. My usb harddisk has four partitions, one is primary, the other three are logical (contained within an extended partition). When I plug in the disk, three of the partitions are mounted automatically except one--the first logical partition in the extended partition. Initially I thought it is the problem of system (at that time I used Mint). But after I change to Ubuntu 12.04, the problem wasn't solved. I don't want to add a rule in fstab, and I want to know what happened. The disk is fine, and the partition can be accessed in Windows and mounted manually. result of dmesg | tail: [100933.557649] usb 2-1.2: new high-speed USB device number 4 using ehci_hcd [100933.651891] scsi8 : usb-storage 2-1.2:1.0 [100934.649047] scsi 8:0:0:0: Direct-Access SAMSUNG PQ: 0 ANSI: 0 [100934.650963] sd 8:0:0:0: Attached scsi generic sg2 type 0 [100934.651342] sd 8:0:0:0: [sdb] 625142448 512-byte logical blocks: (320 GB/298 GiB) [100934.651977] sd 8:0:0:0: [sdb] Write Protect is off [100934.651989] sd 8:0:0:0: [sdb] Mode Sense: 03 00 00 00 [100934.652836] sd 8:0:0:0: [sdb] No Caching mode page present [100934.652848] sd 8:0:0:0: [sdb] Assuming drive cache: write through [100934.655354] sd 8:0:0:0: [sdb] No Caching mode page present [100934.655367] sd 8:0:0:0: [sdb] Assuming drive cache: write through [100934.734652] sdb: sdb1 sdb3 < sdb5 sdb6 sdb7 > [100934.737706] sd 8:0:0:0: [sdb] No Caching mode page present [100934.737725] sd 8:0:0:0: [sdb] Assuming drive cache: write through [100934.737731] sd 8:0:0:0: [sdb] Attached SCSI disk result of parted -l: Model: SAMSUNG (scsi) Disk /dev/sdb: 320GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 1 32.3kB 21.5GB 21.5GB primary ntfs 3 21.5GB 320GB 299GB extended lba 5 21.5GB 129GB 107GB logical ntfs 6 129GB 236GB 107GB logical ntfs 7 236GB 320GB 83.8GB logical ntfs

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  • I am having trouble booting 12.04 keyboard and little man in circle appears and then nothing

    - by Rich J.
    I have a new system (ASUS 990FX mother board, 2 western dig drives, 32 gb memory, an ASUS nvidia video card (GeForce GTX560), and an ASUS DVD Burner (24B1ST)) I am struggling to get the 12.04 cd to work. I have been able to see the little man inside a circle and a graphic of a keyboard? with an == sign between them. Is this is a clue? What does it mean? After that the mauve screen with keyboard and little man in circle goes away. I get a dark background and underline cursor... even hear some work being done reading the rom.... but nothing appears on the screen. I haven't even got to the point where the graphic card is displaying improperly... it is just not displaying anything. If any kind soul has an idea about how to proceed, I am all ears. BTW, I have posted the issue to ASUS... waiting for reply.

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  • Using EC2 instance as main development platform

    - by David
    My problem I am working as a consultant for various companies. Each company provides me with a laptop where with their software on and I also have my own where I have my development environment. I tend to buy a new laptop every second year and find myself spending lots of time configuring and installing software. I also sometimes spend a lot of time waiting for my laptop to process things. To solve all these issues, I am now considering using EC2 (running windows instances) as my main development platform and just access this from any PC I happen to be at. I calculated that running the High-CPU On-Demand Instances (medium) for 8 hours a day for a year costs me 580$, which is acceptable. I imagine that when I approach the workplace each day, I will make a single click my phone to fire up the instance, so it is ready when I get to work. I should have different icons on my phone to fire up the various instance types. The same software should of course automatically be loaded on the various hardware (sometimes I would even need their instance with 68.4 GB of memory). Another advantage is that if I am having a specific problem with my instance, I could fire up another instance and have someone look into the problem and update the image. My question: Does anyone have experience with such a setup on EC2? What kind of problems do you forsee?

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  • How to handle editing a large file for a non-technical user

    - by Luke
    I have a client who is given a tab delimited .txt file containing hundreds of thousands of rows. I have a user story as follows: As a user I want to take the text file and add a new value at the end of each line which contains the concatenated value of two of the columns. for example if the file read text_one text_two I need to output the following (preferably to a .txt file) text_one text_two text_onetext_two My first approach was to ask the vendor supplying the file to do the concatenation before providing the file, the easiest way to solve a problem is to eliminate it right? however they are very uncooperative and have point blank refused. I've looked at building a simple javascript application that does this client side so a non-technical user could select the file using a file selector. This approach has a few problems The file could be over a GB in size and so can't be loaded straight into memory, I've tried and the browser crashes There is no means to write a file in javascript so I'd need to output the content to the screen and have the user save it (somehow) I was thinking if I could get around the filesize limitations I could just output the edited content to the page and have the user save the page as a .txt file, however I think there is a better way than using javascript that will still accommodate the users lack of technical know-how. Please consider this question to be stack agnostic, but bear in mind that a nice little shell script or python script would be deemed unsuitable for a non technical user unless there is a way of "packaging" it nicely for a non-technical user. Updates The file is too large to open in excel. The process needs to be run weekly, but it doesn't require scheduling or automation...(yet)

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  • How to reduce the fan noise and how to increase battery life in ubuntu 11.10/12.04?

    - by mehdi
    I have a brand new Sony Vaio S series laptop.(VPCSA2DGX) It came factory installed with Windows 7 professional Edition 64bit. Runs Intel core i5, 500 GB HDD , 4GB Ram. First I installed ubuntu 11.10 64 bit along side Windows to dual boot. Later,since the problem did not solve, I installed ubuntu 12.04 64bit along side Windows to dual boot. However the problem keeps annoying me. Problem: When running ubuntu 11.10/12.04, the battery lasts only about 1.5 hours. The Fan runs loud and continuously. And there is a lot of heat generated. System monitor shows less than 5% CPU used. My laptop enjoys hybrid graphic and I tried turning off ADM graphic card and keep Intel graphic card on. However I can not get the Fan noise or heat to go away and consequently the battery drain continues. BTW, in windows, the laptop gives 4-5 hours of battery power, Fan is silent and there is no heat problem. Any ideas on how to reduce the fan noise and how to increase battery life in ubuntu 11.10/12.04?

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  • USB mass storage couldn't get mounted

    - by revo
    It's my android phone SD card which was indicated damaged by android yesterday night, out of the blue! I put it directly to a USB port with a USB SD card holder case, so in that way I can recover it with TestDisk, which I had experienced before on a similar situation. I also noticed that there is a change in file system and capacity: File System : RAW Capacity : 0 (unknown capacity) Also TestDisk doesn't show it on its partitions list. A 2 GB SD card is not that important in price but I've a lot of files and medias which I need them. Used a mini card reader, TestDisk displayed it on its list but a quick search and or a deep search doesn't have any results No partition found or selected for recovery and then I should quit the program. Your help is appreciated. Update #2 lsusb output: Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 002: ID 04f3:0234 Elan Microelectronics Corp. Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 002: ID 058f:6366 Alcor Micro Corp. Multi Flash Reader Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 009 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 007 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 006 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

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  • Internet is far slower in Ubuntu than Windows 7 on dual-booted machine

    - by Tim
    Edit: I'll leave the original post as-is, but after further investigation, it appears that the problem is something to do with my wi-fi card. Speeds are normal when I connect via cable. Edit 2: Problem was solved. It was something to do with the wireless card drivers. I normally use Windows 7 on my laptop and have internet speeds that are normally about 15-20 Mb/s. I have recently dual-booted with Ubuntu 12.10, and have noticed that internet speeds are drastically slower in Ubuntu. When tested, speeds range from 0.2-2 Mb/s, although occasionally being significantly faster than that or even stopping completely for short periods of time. I've also noticed that when first booting into Ubuntu, speeds start fairly fast, and drop to incredibly slow with a few seconds to a few minutes. There's still some possibility that the issue may be with my ISP, as things seem slower than usual even in Windows, but I suspect that it is related to Ubuntu, as things are far slower in Ubuntu than in Windows. I'm wondering, what could be the cause of this? Potentially relevant information: -I've dual booted before on this machine with earlier versions of Ubuntu (different ISP at the time) with no problem. ISP: Rogers (Major Canadian ISP) System info (Gateway NV53a Laptop): Operating System MS Windows 7 Home Premium 64-bit CPU AMD Phenom II N970 Caspian 45nm Technology RAM 6.00 GB Dual-Channel DDR3 @ 664MHz (9-9-9-24) Motherboard Gateway SJV51_DN (Socket S1G4) Graphics Generic PnP Monitor (1366x768@60Hz) ATI Mobility Radeon HD 4250 (Acer Incorporated [ALI]) Hard Drives 733GB TOSHIBA TOSHIBA MK7559GSXP ATA Device (SATA) Networking info: Connected through Wi-Fi Atheros AR5B97 Wireless Network A

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  • Using EC2 instance as main development platform

    - by David
    My problem I am working as a consultant for various companies. Each company provides me with a laptop with their software on and I also have my own, where I have my development environment. I tend to buy a new laptop every second year and find myself spending lots of time configuring and installing software. I also spend a lot of time waiting for my laptop to process things. To solve all these issues, I am now considering using EC2 (running windows instances) as my main development platform and just access this from any PC I happen to be at. I calculated that running the Large instance (cheapest 64-bit) for 8 hours a day for a year costs me 960$ per year, which is acceptable. I imagine that when I approach the workplace each day, I will make a single tap on my phone to fire up the instance, so it is ready when I get to work. I should have different icons on my phone to fire up the various instance types. The same software should of course automatically be loaded on the various hardware (sometimes I would even need their instance with 68.4 GB of memory). Another advantage is that if I am having a specific problem with my instance, I could fire up another instance and have someone look into the problem and update the image. My question: Does anyone have experience with such a setup on EC2? What kind of problems do you foresee?

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