How can a Trisquel live DVD be added to a data DVD ?

27 respostas [Última entrada]
amenex
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Joined: 01/03/2015

When one burns a Trisquel ISO image to make a bootable Live DVD, can the DVD be left open and data added in a second burn ?
That would facilitate using Trisquel to view content that a Windows user otherwise could not access.

amenex
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Joined: 01/03/2015

Burning a DVD with the data on it and then adding the Trisquel ISO image did not work. Then I tried copying the files from a Trisquel Live DVD onto my hard drive and burning those files along with the data files onto another DVD, but that DVD fails to boot.

If somehow I could force that second DVD to be bootable ...

Or if I could make the usual bootable Trisquel Live DVD and then add the data files to that ...

ovine
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Joined: 12/25/2015

Yes you can. You can do this with any Live Linux ISO. There is some extra space kept to be used for the user's live session space. Check out this information:
http://softwarebakery.com/shrinking-images-on-linux

amenex
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Joined: 01/03/2015

That's all with GParted - which doesn't recognize DVD drives.

amenex
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Joined: 01/03/2015

My PC will boot OK from the Trisquel Live DVD, but not from a DVD to which the Trisquel files and data files have been burned together.

amenex
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Joined: 01/03/2015

For some reason my posts are getting duplicated ... no idea why.

I tried copying all the files from a Trisquel Live DVD to my hard drive and then burning them and the data files (in separate folders) onto a DVD, but that DVD will not boot, and I cannot find a way of forcing it to be bootable.

I also tried adding my data files to a Trisquel Live DVD, but that also fails, because brasero won't open it for additions.

Is there a DVD burner for Trisquel which has the option of making the DVD bootable during the burn ?

amenex
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Joined: 01/03/2015

For some reason my posts are getting duplicated ... no idea why.

I tried copying all the files from a Trisquel Live DVD to my hard drive and
then burning them and the data files (in separate folders) onto a DVD, but
that DVD will not boot, and I cannot find a way of forcing it to be bootable.

I also tried adding my data files to a Trisquel Live DVD, but that also
fails, because brasero won't open it for additions.

Is there a DVD burner for Trisquel which has the option of making the DVD
bootable during the burn ?

runner8
Desconectado
Joined: 03/04/2015

I don't know if that can to be you useful

http://pinguyos.com/2015/09/pinguy-builder-an-app-to-backupremix-buntu/

A DVD bootable must contain a system for it. Also there are DVDs read only useful for conserve integrity of system or DVDs with possibility of copy more times which are more expensive, i don 't know if this class last DVD can help for it

And a question: how you get burn the image system trisquel together with data, modifying the image iso?

Look this tool too for customization images http://packages.trisquel.info/source/toutatis/uck

On the other hand, maybe you are searching about "live cd or usb data persistent", i suggest search for this in the web

regards

amenex
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Joined: 01/03/2015

"Startup Disk Creator" looks promising until you open it. Then you find out that it thinks that a DVD-R disk has only two kilobytes of free space. Further research reveals that it's intended only for hard disks and USB flash drives.

amenex
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Joined: 01/03/2015

"Startup Disk Creator" looks promising until you open it. Then you find out
that it thinks that a DVD-R disk has only two kilobytes of free space.
Further research reveals that it's intended only for hard disks and USB flash
drives.

ovine
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Joined: 12/25/2015

Use isomaster to add a folder to the ISO and fill it up with your extra files, then save it as a new iso and burn it. Your DVD should still boot Trisquel just fine.

Run the following commands:
sudo apt-get install isomaster
isomaster

Good luck.

amenex
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Joined: 01/03/2015

Duplicate post ... see correction below.

amenex
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Joined: 01/03/2015

This site describes isomaster: http://archive09.linux.com/feature/124565 but
it leaves out the all-important matter of getting the master boot record into
the resulting iso image.

I have identified isolinux.bin as the appropriate filename, but the isomaster
GUI does not indicate how I can invoke that file to get a bootable DVD.

That said, when starting with the iso file intended for a Live DVD, isomaster manages to incorporate the MBR from the source iso file into the combination iso file made from the Live DVD iso (Ttrisquel's iso downloaded from trisquel.info in the present instance) without any problems, as I discovered after correcting the boot sequence in my laptop's BIOS.

My error. I hope this correction will restore your confidence in isomaster !

amenex
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Joined: 01/03/2015

On to Plan B. I burned the Trisquel 7 iso to a DVD-RW disk, and I can boot that disk into a Live Trisquel setup. I can mount the internal hard drive and I can also mount the USB-connected external hard drive, but the Live DVD won't let me see any files on either of those drives. Oddly, I can see all the files in the Windows partition of the internal hard drive.

If the Live DVD will let me run GParted and peek into the Windows portion of the internal hard drive, why not also peek into either one of the other hard drives ?

The Live DVD's Properties tab indicates that there are 2GB of free space, which would be adequate for the website mirror that I'd like to put onto the Live DVD, if only I could copy & paste it.

BTW, this post is coming via the Live DVD-RW disk.

amenex
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Joined: 01/03/2015

Not so fast, amenex. It had seemed that the Live DVD wouldn't let me see any files on either of those drives if I simply mounted them and cd'd into them. I saw my username file, but it was X'd out.

Then I discovered that by going back to the directory to which I had mounted the external USB drive, using
> sudo mount -t xfs /dev/sdb3 /media/960GBV

I could next cd from 960GBV into username/Websites. Listing the contents of /media/960GBV/username/Websites gave me the entire contents of the Websites folder. Then I could make a directory in the home folder of the Live DVD Trisquel installation and copy the contents of one of the folders in the Websites directory into the new Websites directory thusly:

> sudo cp -R /media/960GBV/username/Websites/WebsiteMirror/ /home/trisquel/Websites/WebsiteMirror

It seems that I have to know what's in that freshly mounted filesystem before the Live DVD will let me access it. The GUI will not let me, but the console will if I jump over the unsername folder as shown above.

And that put the Website Mirror into the Trisquel home folder ... leaving next to no space remaining of the original 2GB of free space.

However, this new file isn't persistent, and I cannot create that WebsiteMirror directory in the cdrom directory, because it's mounted read-only. Can I somehow finalize the contents of the present Live DVD ?

BTW, this post is also coming via the Live DVD.

Note that this revelation seems to indicate that one can bypass authorization in just about any unencrypted Trisquel-compatible computer by booting the live DVD and then using logical guesswork to get past the "no access" state of the first file on the computer's internal drive.

amenex
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Joined: 01/03/2015

Back to Plan A. After realizing that my several burned Live DVD-R disks wouldn't boot because the external USB-connected hard drive was ahead of the Atapi CD drive in the BIOS boot sequence and fixing that error, I find that the Live DVD-R disk burned from the combination iso file created with isomaster does indeed boot up into the Live Trisquel operating system.

Now comes the tricky part: That WebsiteMirror folder is in the cdrom in the /media folder, and I have to mount the cdrom a second time in order to access the WebsiteMirror folder. However, the WebsiteMirror can then be opened with ABrowser and read OK.

Now this post is coming from the Live DVD-R burned from the combination iso file created with isomaster.

amenex
Desconectado
Joined: 01/03/2015

Back to Plan A. After realizing that my several burned Live DVD-R disks
wouldn't boot because the external USB-connected hard drive was ahead of the
Atapi CD drive in the BIOS boot sequence and fixing that error, I find that
the Live DVD-R disk burned from the combination iso file created with
isomaster does indeed boot up into the Live Trisquel operating system.

Now comes the tricky part: That WebsiteMirror folder is in the cdrom in the
/media folder, and I have to mount the cdrom a second time in order to access
the WebsiteMirror folder. However, the WebsiteMirror can then be opened with
ABrowser and read OK.

Now this post is coming from the Live DVD-R burned from the combination iso
file created with isomaster.

amenex
Desconectado
Joined: 01/03/2015

On to Plan C. Isomaster will not burn a DVD+RW disk with my website mirror as the file names are too long, so I am attempting to find a workaround. I've tried "dvd=rw-format -force /dev/sr0" to format the disk and then burn the Trisquel iso file to the disk with Brasero to obtain a bootable Trisquel Live-DVD, but when I use "growisofs -M /dev/sr0 -R -J /home/username/Websites/MirrorName" to add the website mirror to the DVD+RW, the result is unbootable, although all the files for both are there.

When I try to use Brasero for the whole task, if I first burn the Trisquel iso file to create a bootable Trisquel Live-DVD and then try to add the website mirror as a data file, Brasero insists on erasing the disk first, and I end up with just the website mirror and no Trisquel files. If I try to add the Trisquel iso to the disk that has the website mirror files on it, again Brasero wants to obliterate the website mirror files. It looks to me as though there is no such thing as adding files to a DVD+RW disk with Brasero ... even though the "leave disk open for adding files" box is pre-checked.

The only possible solution that I can see is to create a Live-USB flash drive and use that to boot into Trisquel Live and then to use the workaround described earlier in this thread to bypass the X-d out status of the CDROM holding the website mirror.

jxself
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Joined: 09/13/2010

"The only possible solution that I can see..."

You're overlooking another: If the website file names are too long, rename
them.

amenex
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Joined: 01/03/2015

On to Plan D.

The only possible solution that I can see is to create a Live-USB flash drive and use that to boot into Trisquel Live and then to use the workaround described earlier in this thread to bypass the X-d out status of the CDROM holding the website mirror.

When I first attempted this with a pen drive having Trisquel-Mini, I found out that there is no usable browser, as Midori is broken on that pen drive. Another pen drive with Trisquel 7 full install (to a 2GB drive) has ABrowser, and that allows negotiation of my Website Mirror files with no hassles, even with the long filenames.

In the final analysis: Skip the DVD+RW approach and do it all with a larger pen drive that can hold the Website Mirror files and the operating system. My Trisquel Mini's 8GB pen drive was formatted about a year ago with GParted into a 4GB partition for the operating system and a 4GB partition for data (both: F32)... which is far easier to accomplish on the pen drive than with a DVD+RW disk. Note that the USB pen drive installer won't format more than 4GB for the operating system.

jxself
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Joined: 09/13/2010

"The only possible solution that I can see..."

You're overlooking another: If the website file names are too long, rename them.

amenex
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Joined: 01/03/2015

jxself suggests:
> If the website file names are too long, rename them.<

Alas, there are 5,000 of those.

Plan D even has its problems: https://trisquel.info/en/forum/apt-get-upgrade-runs-amuck-trisquel-thumb-drive

Nine months later the problem is even worse. Once Trisquel 7 (full install - not mini) is installed, one must not run Software Updater or [sudo] apt-get update/upgrade, because the upgrade fills all the available space in the 4GB of maximum space that casper allows, and will even spill over into the adjacent 4GB partition and fill that up, all by the time that the upgrade reaches half done.

If updates & upgrades are forgone, ABrowser will read the HTTrack-created website mirror OK ... I fixed all the errors that HTTrack detected, so all the 6,000 links and 5,000 data files in that website mirror are accessible with the Trisquel pen drive installation. Just don't try to use the updater software.

If the Trisquel pen drive is left "as is" after Startup Disk Creator is done, then Plan D can be accomplished in less than half an hour and the website mirrors can be browsed without interference from the presence of the long filenames.

jxself
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Joined: 09/13/2010

"Alas, there are 5,000 of those."

Mass renames can be done quickly so quantity doesn't matter at all.

jxself
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Joined: 09/13/2010

"Alas, there are 5,000 of those."

Mass renames can be done quickly so quantity doesn't matter at all.

amenex
Desconectado
Joined: 01/03/2015

jxself suggests:
> Mass renames can be done quickly so quantity doesn't matter at all.<

There's no need. Firefox has no difficulty with the files in my online website, even in a Windows 7 installation, and of course linux has no difficulty either, even on optical media, which is where Windows balks.

The point of this exercise, discovered with a lot of labor on my part, is that it is much easier to pass around a mirror of a website on a pen drive that also contains the trisquel operating system as a nice way of promoting the redistribution of trisquel, kinda like Adobe Acrobat's PDF viewer, than it is to burn an optical disk with the viewer built in.

ovine
Desconectado
Joined: 12/25/2015

Yes you can. You can do this with any Live Linux ISO. There is some extra
space kept to be used for the user's live session space. Check out this
information:
http://softwarebakery.com/shrinking-images-on-linux

runner8
Desconectado
Joined: 03/04/2015

I don't know if that can to be you useful

http://pinguyos.com/2015/09/pinguy-builder-an-app-to-backupremix-buntu/

A DVD bootable must contain a system for it. Also there are DVDs read only
useful for conserve integrity of system or DVDs with possibility of copy more
times which are more expensive, i don 't know if this class last DVD can help
for it

And a question: how you get burn the image system trisquel together with
data, modifying the image iso?

Look this tool too for customization images
http://packages.trisquel.info/source/toutatis/uck and

On the other hand, maybe you are searching about "live cd or usb data
persistent", i suggest search for this in the web

regards

ovine
Desconectado
Joined: 12/25/2015

Use isomaster to add a folder to the ISO and fill it up with your extra
files, then save it as a new iso and burn it. Your DVD should still boot
Trisquel just fine.

Run the following commands:
sudo apt-get install isomaster
isomaster

Good luck.