GNS3 – Can’t Save ASA Config – ‘%Error copying system:/running-config (Not enough space on device)’

KB ID 0000987 Dtd 21/08/14

Problem

I love GNS3, it is a brilliant piece of software, I use it for bench testing and proof of concept work. Yes is can be a bit clunky sometimes, but it’s FREE! I had a project open with about four ASA’s on it, and it would not save the config on just one of them.

ASA Not enough space on device

HostName(config)# copy running-config startup-config

Source filename [running-config]?
Cryptochecksum: fdf42190 76959bba 05a6a3d6 3f900005

%Error copying system:/running-config (Not enough space on device)
HostName(config)#

ASA Not enough space on device

HostName(config)# write mem
Building configuration...
Cryptochecksum: fdf42190 76959bba 05a6a3d6 3f900005

%Error copying system:/running-config (Not enough space on device)
Error executing command
[FAILED]
HostName(config)# 

ASA Not enough space on device

HostName(config)# copy running-config disk0:

Source filename [running-config]?

Destination filename [running-config]?
Cryptochecksum: fdf42190 76959bba 05a6a3d6 3f900005

%Error copying system:/running-config (Not enough space on device)
HostName(config)# 

Solution

At first I simply deleted the ASA and added a new one, which annoyingly did the same. Then I read a post that said, do the following;

1. Open the configuration for the affected ASA.

GNS3 ASA Configure

2. Change the NIC Model to pcnet > Apply > OK > Stop the firewall > Start the Firewall.

GNS3 ASA NIC

HOWEVER, in my case the problem persisted, I eventually fixed it by formatting the virtual ASA’s flash drive.

3. Execute the following command;

HostName# format flash 

 

Format operation may take a while. Continue? [confirm]

Format operation will destroy all data in "flash:". Continue? [confirm]{Enter}
Initializing partition - hda: hda1
done!
mkdosfs 2.11 (12 Mar 2005)

System tables written to disk

Format of disk0 complete
HostName# 

4. Power off, then power on the firewall, problem fixed.

Related Articles, References, Credits, or External Links

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Author: Migrated

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