Puppy Linux Discussion Forum

Ted Dog · Joined: 13 Sep 2005 Posts: 1064 Location: Heart of Texas

The improvements with xgine and the playback of larger video files quickly in 1.05Beta looking good. I am looking to work on the new alpha when it is released.. - Ted Dog

BarryK · Posted: Sat 17 Sep 2005, 19:53 Post subject:

Ted,
Note, although 1.0.5rc does not require scsi-emulation, BUT I haven't looked at the multi-session code, which as I recall still uses scsi-emul.
So, will take a look at that now.

If you look at /usr/sbin/createpuppyonline in 1.0.5rc, you will see how burn to cd with cdrecord:

Ted Dog · Joined: 13 Sep 2005 Posts: 1064 Location: Heart of Texas

growisofs is multi-session by default. the tricky stuff is there must not be any spaces around the equal sign. to burn an iso. cdrecord is not piped, not needed.

Ted_Dog · Guest

with SCSI on limit 2g

BarryK · Posted: Sun 18 Sep 2005, 06:41 Post subject:

Ted,
In an earlier code example, the growisofs example did not have the "-D" option
-- what does that do?

Ted Dog · Joined: 13 Sep 2005 Posts: 1064 Location: Heart of Texas

Flash · Posted: Sun 18 Sep 2005, 14:45 Post subject:

Violating iso9660 standard might be acceptable. I only have a hazy notion of how multisession Puppy works, but it seems to me that, except for forensic purposes or the possibility of an undocumented quirk in the CD drive or its firmware, it makes no difference what filesystem multisession Puppy uses on the CD. The multisession CD is completely self-contained; the software that reads the filesystem on the CD, is contained in the OS on the CD.

Guest · Guest

Perkins · Joined: 25 Sep 2005 Posts: 62

Yes, you could use any file system you want on the CD. However, a standard file system that can be read by other operating systems is definitely a good thing. It's really handy to be able to read my files from any machine without having to boot puppy.

Back to the original subject of this thread for a moment, I think packet writing would be a nice addition at some point. Theoretically one could then use a CD/DVD RW as a read-write disk drive. So by carrying a live-CD, and another disk, you could have the equivalent of a computer with a harddrive in terms of the space available and the way programs can access the disk.

One would of course have to be careful to keep backups since RW disks do have a finite number of write cycles. But that would be a relatively minor hassle compared to being able to actually have and run large programs without needing huge amounts of memory or access to a harddrive.

Flash

Ted Dog · Joined: 13 Sep 2005 Posts: 1064 Location: Heart of Texas

Flash,
How odd, my version of XP service pack2 can read the DVD's just fine. However my laptop (once a ME) has a issue with any CD/DVD with second sessions. Confused

Flash · Posted: Fri 21 Oct 2005, 23:22 Post subject:

Ted, I'm not sure you understood what I meant. Windows can see the files on the DVD (boot.cat, isolinux.bin, image.gz, etc.,) but can't open them. Also Windows also only sees the first session on the DVD.

BarryK · Posted: Fri 21 Oct 2005, 23:58 Post subject:

GuestToo · Puppy Master Joined: 04 May 2005 Posts: 4078

i think packet writing drivers deliberately fragment files so all the sectors on the disc are used, to maximize the number of writes that can be done ... and flash drives do the same thing

an interesting (Windows only) program that uses packet writing is AccuBurn

it doesn't require any drivers to be installed either to write or to read the discs, like InCD or DirectCD ... the discs it creates can be read on any OS just like an ordinary disc

what it does, is burns cds/dvds a sector at a time, and checks that the sector burned ok ... if it did not burn ok, it doesn't use that sector and burns the sector again, until the sector is burned properly

then, after all the sectors have been burned, it creates and burns the updated Table Of Contents using only the good sectors that were burned

so the burn is usually very reliable

of course, if there is a problem burning the Table Of Contents, you can lose the contents of the disc, just like a regular cd/dvd

because it burns a small packet at a time, it's impossible to have a buffer under-run

the program is very simple to use, just drag files/folders to the window and click the big red Burn button ... everything is automatic, it asks for a new disc if there is not enough room on the disc ... it doesn't need to be configured for your hardware either, it figures out what hardware you have and what options it needs to use, like cd burning speed, automatically

it's good for TC (technologically challenged) people, but i liked using it because it was so simple and easy to use (i like simple)

it has copy protection in it that connects to the internet the first time you install it, which i found slightly annoying

i have not tried the latest version

anyway, just a review of a Windows program some people don't seem to know about (i have no connection with the company other than having used the program) ... if Linux had an open source equivalent of a program like this, it would make cd/dvd burning very easy and reliable for TC people

picture of Accuburn ... all you ever do is drag files/folders to the right window pane and click the red Burn button

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