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Thread: ubuntu fast, ubuntu slow

  1. #1
    Join Date
    Jun 2012
    Beans
    2

    ubuntu fast, ubuntu slow

    hello
    I have an Ubuntu 12.04 installation in a 16Gb pendrive that runs wonderfully fast
    I tried to make an installation in a 32Gb pendrive but it failed several times so I deleted everything in the main partition and copied (rsync avH ...) everything from the installation that runs ok.
    I edited /etc/fstab and /boot/grub/grub.cfg to update UUID
    The new installation runs but so slowly that it is not worth using it
    Any sugestion to fix this would be very apreciated

  2. #2
    Join Date
    Jul 2011
    Location
    Germany
    Beans
    990
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: ubuntu fast, ubuntu slow

    Quote Originally Posted by coracle View Post
    hello
    I have an Ubuntu 12.04 installation in a 16Gb pendrive that runs wonderfully fast
    I tried to make an installation in a 32Gb pendrive but it failed several times so I deleted everything in the main partition and copied (rsync avH ...) everything from the installation that runs ok.
    I edited /etc/fstab and /boot/grub/grub.cfg to update UUID
    The new installation runs but so slowly that it is not worth using it
    Any sugestion to fix this would be very apreciated
    just do a clean install instead of forcing it on another device? I had some bad experiences when using backup programs to "install" Ubuntu on another drive (be it HDD, USB, SSD)
    i5 2500k @ 4.4 GHz | MSI Z68A-GD65 (G3) | Gigabyte GTX 570 (OC) 1280 MB GDDR5 | Alpenföhn Himalaya | Corsair Vengeance 1600MHz 8GB CL9 RAM | Be quiet! Straight Power BQT-E9 700W | NZXT Lexa S | Monitor - ASUS ML248H 24"

  3. #3
    Join Date
    Jun 2012
    Beans
    2

    Re: ubuntu fast, ubuntu slow

    thank you, Basher101, but
    you mean ubuntu doesn't support restoring a backup in a different drive? can't believe that
    i only want to extend the space available, without going again through the installation of web server, ddbb, php, cms, ...
    not asking too much, hope somebody could advise me

  4. #4
    Join Date
    Nov 2011
    Location
    /dev/root
    Beans
    Hidden!

    Re: ubuntu fast, ubuntu slow

    I suggest that you clone the nice-working pendrive to the other one using dd.

    Boot from another drive, for example an internal HDD. Run
    Code:
    sudo fdisk -lu
    to find the drive designations. And then run dd
    Code:
    sudo dd if=/dev/sdx of=/dev/sdy bs=4096
    where you replace x and y with the appropriate drive letters, for example b and c, if your nice-working pendrive is /dev/sdb and the new one is /dev/sdc. Recheck so that you get it right, otherwise you might destroy your nice-working pendrive or a hard drive!!!

    After cloning you can use gparted (booted from another drive, for example also in this case from your internal HDD) and edit the partition table, to make the unallocated part of the drive useful (grow an existing partition or make and format a new one).

    If you still get slow action, it might be because the new pen-drive is slower than the old one. I have good results using a USB 3 pendrive booting from a USB 2.0 port.
    Last edited by sudodus; June 10th, 2012 at 11:08 AM. Reason: ... booting from a USB 2.0 port.

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