<|im_start|>system
You are a helpful AI assistant.<|im_end|>
<|im_start|>user
I want to add files to an iso. The iso is large, and I'm on Linux.<|im_end|>
<|im_start|>assistant
To add files to an ISO on Linux, you can use the genisoimage or mkisofs command-line tools. Here's how to do it:

1. Install the genisoimage package if it's not already installed on your system. You can do this by running the following command in a terminal:
``` 
sudo apt-get install genisoimage
``` 
2. Create a directory for the files you want to add to the ISO. For example, you could create a directory called iso_files in your home directory:
``` 
mkdir ~/iso_files
``` 
3. Copy the files you want to add to the ISO into the iso_files directory.

4. Use the genisoimage command to create a new ISO image that includes the files in the iso_files directory:
``` 
genisoimage -o /path/to/new_iso.iso -r -J ~/iso_files
``` 
In this command, replace /path/to/new_iso.iso with the path and filename you want to use for the new ISO image. The -r and -J options specify that the ISO should use the Rock Ridge and Joliet extensions, which allow long filenames and other features not supported by the basic ISO 9660 format.

5. Wait for the genisoimage command to finish. This may take a while, especially if you're adding a lot of files to the ISO.

6. Once the command finishes, you should have a new ISO file that includes the files you added. You can verify this by mounting the ISO and checking that the files are present:
``` 
sudo mount /path/to/new_iso.iso /mnt/iso
ls /mnt/iso
sudo umount /mnt/iso
``` 
In this command, replace /path/to/new_iso.iso with the path and filename you used for the new ISO image. The mount command mounts the ISO at /mnt/iso, and the ls command shows the files in the mounted ISO. The umount command unmounts the ISO when you're done.<|im_end|>
<|im_start|>user
I didn't know about this utility before. Thank you very much, but can you explain what all these options mean? Is this program from gnu coreutils? If not, where can I get it?<|im_end|>
<|im_start|>assistant
You are welcome.
The option used in the second command mount `-o` or `--options` means the following arguments, separated by commas if more than one option is desired, will override the default mount options in `/etc/fstab`.
The argument specified, `loop`, means the `mount` command will mount the provided file in the specified loop device, but since the loop device is empty it will automatically create and assign one.

The options used in the third command xorriso `-as`, `-o`, `-J`, `-R`, and`-graft-points`. The option `-as personality` indicates that the program should emulate the provided behavior that corresponds to the argument 'personality', in this case, `mkisofs` personality.
The option `-o` or `-output` is accepted by the personality mkisofs and indicates the output file path of the ISO being generated.
The option `-J` or `-joliet` indicates the program to generate an additional Joliet directory tree along with the ISO 9660 Rock Ridge tree.
The option `-R` or `-rock` indicates to mkisofs to generate Rock Ridge extensions.
And the option `-graft-points` enables the interpretation of input file pathspecs as combination of iso_rr_path and disk_path.

No, mount and xorriso are not part of the gnu coreutils.
Mount is part of the util-linux package wich comes with the linux kernel. And the xorriso program is an independent project developed by GNU, and does not come by default in all Linux distros. To install it use `sudo apt install xorriso`.<|im_end|>
<|im_start|>user
I have an existing iso file and a separate txt file. I want to add txt inside the iso file.<|im_end|>
<|im_start|>assistant
To add a separate text file to an existing ISO file, you can use a tool called `isomaster`. Here are the steps you can follow:

1. Install `isomaster` on your Linux system. You can install it using the package manager of your Linux distribution. For example, on Ubuntu or Debian, you can use the following command:

```csharp
sudo apt-get install isomaster
```

2. Open `isomaster` and load the ISO file that you want to modify. You can do this by selecting "File" > "Open" from the menu, and then navigating to the location of the ISO file.

3. Once the ISO file is loaded, you should see its contents in the main window of `isomaster`. Drag and drop the text file that you want to add into the main window.

4. Save the modified ISO file by selecting "File" > "Save As" from the menu. Choose a new name for the ISO file, and save it to a location on your system.

5. Close `isomaster` and verify that the modified ISO file contains the added text file by mounting it and checking its contents. You can do this using the same steps as described in my previous answer.

Note that if the ISO file is write-protected or if you do not have sufficient permissions to modify it, you may need to use `sudo` or change the permissions of the ISO file before you can add the text file to it.<|im_end|>