[Qemu-devel] 'file too large' errors with qemu-mkcow

[Ed Jackson]

Hello,

Is there a file size limitation on creating cow images from raw images? 
I have a win2k.img that I'm trying to create a cow image with.  Here is
what I'm trying to do:


address@hidden win2k.new]#
address@hidden win2k.new]# ls -la w2k.img
-r--r--r--  1 root root 3072001024 Oct 16 12:46 w2k.img
address@hidden win2k.new]# du -k w2k.img
1236252 w2k.img
address@hidden win2k.new]#
address@hidden win2k.new]# qemu-mkcow -f ./w2k.img test.cows
./w2k.img: File too large
address@hidden win2k.new]#


I've tried to search for an answer to this online but I haven't found
anything yet.  Thanks for any help you can provide.