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Re: iso and disk space problem



On Mon 18 Aug 2014 at 10:50:48 -0400, Frank McCormick wrote:

> On 18/08/14 09:11 AM, Brian wrote:
> >
> >Which ISO are you using?
> 
>   ElementaryOS...seems like a Gnome-based distro from what I've been
> able to gather but it replaces a lot of Gnome stuff with its own
> applications written in Vala (sp).

It does have a loopback.cfg, which is why grub can boot it from the
grml-rescueboot devised menu entry. The live image is mastered to use
Ubuntu's casper and the distribution itself is Ubuntu based. First
impressions are that it looks smart.

I boot from a USB stick, which doesn't give the fastest booting in the
west. From a CD it might be noticeably slower. Once the OS is going I
cannot say I'm disappointed with its snappiness.

> >I'm inclined to think increasing size of an ISO is not possible. Having
> >it access space outside the image is.
> >
>    Yes that's the conclusion I've reached but how to do it is the
> problem. For me this started as a way to try the distro without
> booting from a CD but now it has stoked my curiosity about ISOs in
> general.

How about a 'df -h'?

   Filesystem      Size  Used Avail Use% Mounted on
   /cow           1006M  191M  816M  19% /
   udev            996M  4.0K  996M   1% /dev
   tmpfs           403M  944K  402M   1% /run
   /dev/sdc18      662M  662M     0 100% /cdrom
   /dev/loop0      631M  631M     0 100% /rofs
   tmpfs          1006M  8.0K 1006M   1% /tmp
   none            5.0M     0  5.0M   0% /run/lock
   none           1006M   76K 1006M   1% /run/shm

/dev/sdc18 and /dev/loop0 are the ISO image. Note the 100%. /cow is a
copy-on-write filesystem; it will be in memory. I've some progams open
and did some downloading. Whatever happened to you would be a result of
running out of room on /cow and not the fault of too small an ISO image.
Take look at

   https://help.ubuntu.com/community/LiveCD/Persistence

and see what you think.

If you are think of trying other distribution's ISOs you are going to
have to abandon grml-rescueboot and do it directly with your own grub
entries. Its not too hard but every distribution is different.

Actually, many ISOs are hybrid ones and dd to a USB stick is by far
the easiest route.


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