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hi
I noticed this as well when trying to download an image of sonar linux
from a fedora live environment. The download would get part way
through, usually around 20-21 percent, then fail. I thought it was my
network connection, but afterwards nothing else worked. Applications
wouldn't launch, bits of gnome would fail to work, etc. This explains
it. I was actually worried this was a general linux issue, but if it's
a fedora one it's probably a simple fix
Thanks
Kendell Sent from Sonar GNU/Linux
Moez Roy wrote:
On Thu, Apr 16, 2015 at 4:13 PM, Moez Roy <moez.roy(a)gmail.com>
wrote:
> Copying more than 500 MB crashes Fedora Live CD even though there
> is sufficient RAM.
>
> It doesn't matter how much RAM your system has, once you copy
> more than 500 MB you will get stuff like "Input/output error" or
> just plain crashes like "Segmentation fault".
>
> Why does this happen?
I think I figured out why this happens.
The file
/usr/lib/dracut/modules.d/90dmsquash-live/dmsquash-live-root.sh
seems to create a 500MB overlay:
dd if=/dev/null of=/overlay bs=1024 count=1 seek=$((512*1024)) 2>
/dev/null if [ -n "$setup" -a -n "$readonly_overlay" ]; then
RO_OVERLAY_LOOPDEV=$( losetup -f ) losetup $RO_OVERLAY_LOOPDEV
/overlay else losetup $OVERLAY_LOOPDEV /overlay fi fi
Wouldn't it be more efficient if this was tmpfs instead?
This also affects installing applications in the live environment
where the installed size is more than 500MB.
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