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Thread: Finding the "Casper" Folder in ISO

  1. #1
    Join Date
    Jun 2014
    Beans
    2

    Unhappy Finding the "Casper" Folder in ISO

    Hi there-
    I am obviously doing something wrong and I am a complete noob when it comes to Linux. I downloaded an Ubuntu ISO and all of the directions I can find tell me that the vmlinuz and initrd are contained within a folder called Casper. When I mount the ISO, all I see is the following:
    dr-xr-xr-x 1 root root 2048 Apr 16 15:12 boot
    dr-xr-xr-x 1 root root 2048 Apr 16 15:11 .disk
    dr-xr-xr-x 1 root root 2048 Apr 16 15:11 dists
    dr-xr-xr-x 1 root root 2048 Apr 16 15:11 doc
    dr-xr-xr-x 1 root root 2048 Apr 16 15:12 EFI
    dr-xr-xr-x 1 root root 2048 Apr 16 15:12 install
    dr-xr-xr-x 1 root root 18432 Apr 16 15:12 isolinux
    -r--r--r-- 1 root root 162102 Apr 16 15:12 md5sum.txt
    dr-xr-xr-x 1 root root 2048 Apr 16 15:11 pics
    dr-xr-xr-x 1 root root 2048 Apr 16 15:11 pool
    dr-xr-xr-x 1 root root 2048 Apr 16 15:11 preseed
    -r--r--r-- 1 root root 236 Apr 16 15:11 README.diskdefines
    lr-xr-xr-x 1 root root 1 Apr 16 15:11 ubuntu -> .

    Where the heck is the folder casper so I can get the kernel and initrd for a project I need them for?

    Thanks!
    Last edited by michael176; June 12th, 2014 at 08:11 PM.

  2. #2
    Join Date
    Nov 2011
    Location
    /dev/root
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    Hidden!

    Re: Finding the "Casper" Folder in ISO

    Welcome to the Ubuntu Forums

    Code:
    sudo mount -o loop ubuntu-14.04-desktop-amd64.iso /mnt
    mount: blockenhet /media/multimed-2/CD/ubuntu/14.04/ubuntu-14.04-desktop-amd64.iso är skrivskyddad, monterar som endast läsbar
    ls -l /mnt
    totalt 2548
    dr-xr-xr-x 1 root root    2048 apr 17 03:35 boot
    dr-xr-xr-x 1 root root    2048 apr 17 03:35 casper
    dr-xr-xr-x 1 root root    2048 apr 17 03:34 dists
    dr-xr-xr-x 1 root root    2048 apr 17 03:35 EFI
    dr-xr-xr-x 1 root root    2048 apr 17 03:35 install
    dr-xr-xr-x 1 root root   18432 apr 17 03:35 isolinux
    dr-xr-xr-x 1 root root    2048 apr 17 03:34 pics
    dr-xr-xr-x 1 root root    2048 apr 17 03:34 pool
    dr-xr-xr-x 1 root root    2048 apr 17 03:34 preseed
    -r--r--r-- 1 root root     134 apr 17 03:34 autorun.inf
    -r--r--r-- 1 root root   21396 apr 17 03:35 md5sum.txt
    -r--r--r-- 1 root root     229 apr 17 03:34 README.diskdefines
    lr-xr-xr-x 1 root root       1 apr 17 03:34 ubuntu -> .
    -r--r--r-- 1 root root 2551408 apr 14 18:04 wubi.exe
    Code:
    ls -l /mnt/casper
    totalt 970024
    -r--r--r-- 1 root root     58068 apr 17 03:31 filesystem.manifest
    -r--r--r-- 1 root root      1046 apr 17 03:31 filesystem.manifest-remove
    -r--r--r-- 1 root root        11 apr 17 03:31 filesystem.size
    -r--r--r-- 1 root root 966815744 apr 17 03:31 filesystem.squashfs
    -r--r--r-- 1 root root  20648481 apr 17 03:31 initrd.lz
    -r--r--r-- 1 root root   5778968 apr 17 03:31 vmlinuz.efi

    I can see it. What did you download? I got my iso file via torrent from the official Ubuntu web-site and checked it with md5sum from
    https://help.ubuntu.com/community/UbuntuHashes

  3. #3
    Join Date
    Jun 2014
    Beans
    2

    Re: Finding the "Casper" Folder in ISO

    ISO Downloaded from Ubuntu directly: ubuntu-14.04-server-amd64.iso
    /mnt/loop (Directory I created previously)
    I ran the command "sudo mount -o loop ubuntu-14.04-server-amd64.iso /mnt/loop"

    This is all I see in that directory (ls -la):
    dr-xr-xr-x 1 root root 2048 Apr 16 15:12 .
    drwxr-xr-x 3 root root 4096 Jun 5 14:58 ..
    dr-xr-xr-x 1 root root 2048 Apr 16 15:12 boot
    dr-xr-xr-x 1 root root 2048 Apr 16 15:11 .disk
    dr-xr-xr-x 1 root root 2048 Apr 16 15:11 dists
    dr-xr-xr-x 1 root root 2048 Apr 16 15:11 doc
    dr-xr-xr-x 1 root root 2048 Apr 16 15:12 EFI
    dr-xr-xr-x 1 root root 2048 Apr 16 15:12 install
    dr-xr-xr-x 1 root root 18432 Apr 16 15:12 isolinux
    -r--r--r-- 1 root root 162102 Apr 16 15:12 md5sum.txt
    dr-xr-xr-x 1 root root 2048 Apr 16 15:11 pics
    dr-xr-xr-x 1 root root 2048 Apr 16 15:11 pool
    dr-xr-xr-x 1 root root 2048 Apr 16 15:11 preseed
    -r--r--r-- 1 root root 236 Apr 16 15:11 README.diskdefines
    lr-xr-xr-x 1 root root 1 Apr 16 15:11 ubuntu -> .

    I am using the server version for a special project I am doing. Maybe that has something to do with it? The md5sums match as well. I just checked.

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

    Re: Finding the "Casper" Folder in ISO

    Yes, obviously the server and desktop versions have different layouts. I guess you can find the files you want in some other directory. I haven't got that iso file, so it's not easy for me to check. I suggest that you search for the files you want with the find command

    Code:
    sudo find /mnt -name "vmlinuz*"
    
    sudo find /mnt -name "initrd*"

  5. #5
    Join Date
    Jul 2005
    Location
    England
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    Hidden!

    Re: Finding the "Casper" Folder in ISO

    Surely the casper folder will only be in a live CD/DVD, therefore not in the server version, just as it was not in the Alternate Install .iso image, when such things existed.
    DISTRO: Xubuntu 14.04-64bit --- Code-tags --- Boot-Repair --- Grub2 wiki & Grub2 Basics --- RootSudo

  6. #6
    Join Date
    Nov 2011
    Location
    /dev/root
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    Hidden!

    Re: Finding the "Casper" Folder in ISO

    I'm not very familiar with the server installer.

    ajgreeny, do you know if the vmlinuz and initrd files that the OP is looking for come with the server iso file, and if not, where to find them? Or are they created during the installation?

  7. #7
    Join Date
    Jul 2005
    Location
    England
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    Re: Finding the "Casper" Folder in ISO

    Quote Originally Posted by sudodus View Post
    I'm not very familiar with the server installer.

    ajgreeny, do you know if the vmlinuz and initrd files that the OP is looking for come with the server iso file, and if not, where to find them? Or are they created during the installation?
    Not sure about the server, but in the alternate install CD of Lubuntu 14.04, the vmlinuz and initrd.gz both sit in a folder named install.
    See screenshot of archive-manager with Lubuntu 14.04 alternate iso showing
    Attached Images Attached Images
    DISTRO: Xubuntu 14.04-64bit --- Code-tags --- Boot-Repair --- Grub2 wiki & Grub2 Basics --- RootSudo

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