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Bug 1424404 - Atomic kickstart does not remove random seed
Summary: Atomic kickstart does not remove random seed
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: rhel-server-atomic
Version: 7.3
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Colin Walters
QA Contact: atomic-bugs@redhat.com
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2017-02-17 17:00 UTC by Marko Myllynen
Modified: 2017-05-03 14:47 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2017-05-03 14:47:54 UTC
Target Upstream Version:
Embargoed:

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Description Marko Myllynen 2017-02-17 17:00:24 UTC 
Description of problem:
RHEL 7 Atomic kickstart has this:

echo "Removing random-seed so it's not the same in every image."
rm -f /var/lib/random-seed

But in fact the random-seed is at /var/lib/systemd/random-seed, thus all Atomic images currently share the same seed.

Version-Release number of selected component (if applicable):
7.3.2
Comment 1 Colin Walters 2017-02-17 19:57:47 UTC 
Hm.  The path is indeed incorrect.  However, I can't find the random seed in the current gold RHELAH cloud image.

```
# env LIBGUESTFS_BACKEND=direct guestmount --ro -a rhel-atomic-cloud-7.3.2-1.x86_64.qcow2 -m /dev/mapper/atomicos-root /mnt/guestfs/
# find /mnt/guestfs/ -name 'random-seed'
# 
```

And the same for current Fedora Atomic Host.  Maybe something else is deleting it?  

Did you actually *observe* the random seed being identical, or were you just reading the kickstart?
Comment 3 Marko Myllynen 2017-02-20 11:21:47 UTC 
(In reply to Colin Walters from comment #1)
> 
> Did you actually *observe* the random seed being identical, or were you just
> reading the kickstart?

Yeah, I merely trusted the documentation :) So looks like a false positive.

> And the same for current Fedora Atomic Host.  Maybe something else is
> deleting it?  

I assume you are not using virt-sysprep(1) to clean up the given that there are some leftover installation time files under /root and /tmp, that would have been one possible explanation.

Thanks.
Comment 4 Micah Abbott 2017-05-03 14:47:54 UTC 
I booted two instances of the latest cloud image (rhel-atomic-cloud-7.3.4-11.x86_64.qcow2) corresponding to RHELAH 7.3.4-1 and then compared sha256 checksums of the '/var/lib/systemd/randomseed' file.

$ ssh 192.168.122.55
Warning: Permanently added '192.168.122.55' (ECDSA) to the list of known hosts.
[cloud-user@atomichost ~]$ sudo sha256sum /var/lib/systemd/random-seed
c047d4f6d5c5e52a5c2b5aad67348bac172b92b30b997d46df072355820d3df2  /var/lib/systemd/random-seed


$ ssh 192.168.122.236
Warning: Permanently added '192.168.122.236' (ECDSA) to the list of known hosts.
[cloud-user@atomichost ~]$ sudo sha256sum /var/lib/systemd/random-seed
ec03970f47fb769374aa02f5afc4a42b02ae26912606b3dbe0c8cdcefba9ccf0  /var/lib/systemd/random-seed


Based on Colin's comment in #1 and these observations, I am going to close this.
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