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Thread: SV-TUTZ : BT3b PERSISTENT CHANGES

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  1. #1
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    Lightbulb SV-TUTZ : BT3b PERSISTENT CHANGES

    im running the usb drive version and i was tying out the persistent changes boot option but havn't had any luck with it actually saving anything. is there something i need to do?

    EDIT SOLVED SEE SV TUT

  2. #2
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    i get the same error,

    i think there is a problem with the changes line

  3. #3
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    Ok, tried creating a ext2 partition on my 2gb stick, and put the same mods in place, but i'm still getting the same error.

    read through all the BT2 save changes threads, still think i'm doing it right..

    I'm gonna try formatting with ext2 now the trying to use the bootlilo.sh and see what that does for me.

    Tried all of the above and still no joy :-/

  4. #4
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    Here it is the same.
    2GB Stick (1,1GB primary Fat32, 500MB parimary Ext2, rest Fat32)
    Got the same error.

    md5 checksum is ok!!
    formated and wiped the usb device serveral time,
    make it bootable under windows, AND several times under Linux. no chance.

    Next week i will try out an other USB-Stick.
    Under BT2 this one works well, with the same config.

    btw: the mounted ext2-Partition is not "green" when i show in dir /mnt/... all others (hda, sdb1 -the fast32 one with the system, and sdb3 - the fat32 for other data) are "green" displayed

    any ideas, out there guys?
    think i edited the "changes=/dev...." in syslinux.cfg right (using vi-Editor)

    no problems with BT2

  5. #5
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    Update:

    tested an other usb-key. the same problem at all

    an other test fails also: take an second usb-key, with only a 2GB ext2 partition. edit the syslinux.cfg "changes=/dev/sdc1" but also the same error occured:

    setting up directory for changes
    /dev/sdc1
    testing the filesystem for posix compatibility
    setup union directory (using aufs, with adba=none)
    mount: mounting aufs on union failed
    Fatal error occured - can't .......

    a few tests later, i am testing the stick with the my BT2-UsbStick the BT2 changes partition does it!!

    has nobody out there any solution, or can explain me the the errormessages coming up?

    SOLVED THE PROBLEM: Manually create in ext2 partition the "changes" folder. now it works!

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    care to go into more detail on that please?

  7. #7
    Member imported_Deathray's Avatar
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    Just a summary of what I did for other people looking for help.
    This made my 2 gb USB Pen Drive boot BT3 beta and save every change I made on the same disk it was booted from.


    In order to have backtrack save changes to the same drive it is booted from, it
    should have at least 1.2 gb. If the usb pen drive has less than this, do not worry, you can make the changes get saved to your hard disk.
    For that, please follow shamanvirtuel's tutorial farther up.

    Step 1. Split the usb pen drive into 2 partitions*. First partition (A) should be precisely 1 gb and FAT32 filesystem. Second partition (B) should have the remaining diskspace and be in EXT2 filesystem.

    Step 2. Copy bt3 and boot directory to partition A.

    Step 3. Manually create folder "changes" at root directory of partition B.

    Step 4. Execute /boot/bootinst.sh

    Step 5. Open terminal and CD to /boot/syslinux on partition A. Type
    Code:
    chmod +Xx lilo
    chmod +Xx syslinux
    Step 6. Open /boot/syslinux/syslinux.cfg
    At the end of the APPEND line, under the mod you are planning to use. (Example KDE or simply text mode), add:
    changes=/dev/XXX
    XXX Should be replaced with the name of partition B on the USB Pendrive.
    In my case, /dev/sdb2.
    SAVE SYSLINUX.CFG

    Step 7. Reboot and select the mode where you added the changes mod from step 6.
    Credit goes to SV + rest in this thread, who helped me get it to work

    *I used qtparted from backtrack to split the usb into 2 partitions(easy with user interface). You could also follow DaKahuna's guide further down.

    backtrack 3 beta bt3 usb save changes usb drive persistent changes save configurations to usb pen drive
    - Poul Wittig

  8. #8
    Just burned his ISO
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    Smile

    Been using the Live disk version 2 and now 3. My hats off to the folks who created this awesome version of Linux.

    This may be a dumb question but how do you partition the usb pen? (Step 1. Split the usb pen drive into 2 partitions). I tried gparted and other programs and google doesnt seem to have answers. I am sure there's prob a command way to do it like fdisk or mkfs but i can't seem to find any docs on it I want to split my 2 GB drive into fat32 and ext2 but I can't seem to find the way. Any help will be appreciated. Thanks

  9. #9
    Senior Member DaKahuna's Avatar
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    Backup any data you have on the USB drive as that will be erased by the following steps:

    1. format the USB drive for full size using a windows machine and format it to FAT 32
    2. on you BackTrack system insert the USB drive and mount it. In BT3 Beta it should automount.
    3. as root create the two partitions using fdisk.
    fdisk /dev/sda
    p (print to see what is on the drive)
    if there are any exisitng partitions delete all of them using the "d" command
    n (for new partition)
    p (for primary)
    1 (for first partition)
    1 or enter (to start at the first partition)
    +2048M (to create a 2GB partition)
    t (to set the type)
    b (to make the type FAT 32)

    n (for new partition)
    P (for a primary partition)
    2 (for 2nd partition)
    Enter (to accept the default start at next available partition number)
    Enter (to accept the ending partition to use the rest of the disk)
    t (to set type)
    83 (to set type for Linux)

    p (print to screen to make sure there are two partitions with the format you want)

    w (write changes to the drive)

    When write is finished you are returned to the command prompt.

    run mount to see if the new drive is mounted or not. If not mount it using the mount command (note: you may need to create a directory in /mnt/ for the sda2 partition.

    after the drive is mounted run mkfs.ext2 /dev/sda2 to set type for your linux partition to ext2

    That should give you a general idea of what's involved.

  10. #10
    Just burned his ISO
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    Talking

    Thanks Dakahuna, I managed to figure out using Jabra's pdf on installing backtrack to hard drive substituting my SDB1 instead. Your steps are identical. I love running BT3 off my USB with persistent changes!

    On a similar note, has anyone been able to mount a Vista partition read/write within BT3?

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