Bug 815369
| Summary: | NetworkManager overwrites resolv.conf because of no DNS1/DNS2 entries in dracut generated files | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Mark Hamzy <hamzy> |
| Component: | dracut | Assignee: | dracut-maint |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | urgent | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 17 | CC: | dracut-maint, jonathan |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | ppc64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | dracut-018-26.git20120424.fc17 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2012-05-02 04:37:43 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
If I break into dracut with rd.break=cmdline
cmdline:/# vi /run/initramfs/usr/lib/dracut/hooks/pre-pivot/85write-ifcfg.sh
...
namesrv=$(getargs nameserver)
if [ -n "$namesrv" ] ; then
declare -i i=1
for s in $namesrv; do
echo "DNS$i=$s"
i=$(($i+1))
done
fi
...
cmdline:/# exit
Then that fixes the problem.
[anaconda root@sharpie /]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
# Generated by dracut initrd
DEVICE=eth0
ONBOOT=yes
NETBOOT=yes
UUID=eff7cc6b-8f76-4da7-acda-c6af9186da3e
DNS1=9.10.244.100
BOOTPROTO=none
IPADDR=9.5.250.145
NETMASK=255.255.255.0
GATEWAY=9.5.250.1
HWADDR=2a:0f:41:b7:3f:03
TYPE=Ethernet
NAME="Boot Disk"
[anaconda root@sharpie /]# cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 9.10.244.100
Will Woods responded with this patch: http://fpaste.org/EGNE/ This patch works when testing from dracut with rd.break=cmdline. dracut-018-26.git20120424.fc17 has been submitted as an update for Fedora 17. https://admin.fedoraproject.org/updates/dracut-018-26.git20120424.fc17 Package dracut-018-26.git20120424.fc17: * should fix your issue, * was pushed to the Fedora 17 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing dracut-018-26.git20120424.fc17' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-6603/dracut-018-26.git20120424.fc17 then log in and leave karma (feedback). dracut-018-26.git20120424.fc17 has been pushed to the Fedora 17 stable repository. If problems still persist, please make note of it in this bug report. |
Description of problem: I am seeing a problem with network name lookup. NetworkManager nukes /etc/resolv.conf because there are no DNS1 or DNS2 entries in ifcfg-eth* entries created by dracut. Version-Release number of selected component (if applicable): dracut-018-23.git20120419.fc17.noarch.rpm How reproducible: Very. Steps to Reproduce: The system was booted with the following line: boot: linux ip=9.5.250.145::9.5.250.1:255.255.255.0:sharpie.rchland.ibm.com:eth0:none ip=9.5.252.203::9.5.252.1:255.255.255.0::eth1:none nameserver=9.10.244.100 bootdev=eth0 When I access a bash shell on the booted system, this is what I see: [anaconda root@sharpie /]# ifconfig eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 9.5.250.145 netmask 255.255.255.0 broadcast 9.5.250.255 ether 2a:0f:41:b7:3f:03 txqueuelen 1000 (Ethernet) RX packets 1781 bytes 135886 (132.7 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 12 bytes 1072 (1.0 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 device interrupt 19 eth1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 9.5.252.203 netmask 255.255.255.0 broadcast 9.5.252.255 ether 2a:0f:41:b7:3f:06 txqueuelen 1000 (Ethernet) RX packets 1772 bytes 130305 (127.2 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 1 bytes 90 (90.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 device interrupt 22 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 16436 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 0 (Local Loopback) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 [anaconda root@sharpie /]# nslookup sharpie.rchland.ibm.com ;; connection timed out; trying next origin ;; connection timed out; no servers could be reached [anaconda root@sharpie /]# cat /etc/sysconfig/network-scripts/ifcfg-eth0 # Generated by dracut initrd DEVICE=eth0 ONBOOT=yes NETBOOT=yes UUID=44b2d13b-f3ff-4a89-bc76-db7c90447666 BOOTPROTO=none IPADDR=9.5.250.145 NETMASK=255.255.255.0 GATEWAY=9.5.250.1 HWADDR=2a:0f:41:b7:3f:03 TYPE=Ethernet NAME="Boot Disk" [anaconda root@sharpie /]# cat /etc/sysconfig/network-scripts/ifcfg-eth1 # Generated by dracut initrd DEVICE=eth1 ONBOOT=yes NETBOOT=yes UUID=d1fe600f-8a3c-4431-9612-0f620aaa9734 BOOTPROTO=none IPADDR=9.5.252.203 NETMASK=255.255.255.0 GATEWAY=9.5.252.1 HWADDR=2a:0f:41:b7:3f:06 TYPE=Ethernet NAME="Boot Disk" [anaconda root@sharpie /]# cat /etc/resolv.conf # Generated by NetworkManager # No nameservers found; try putting DNS servers into your # ifcfg files in /etc/sysconfig/network-scripts like so: # # DNS1=xxx.xxx.xxx.xxx # DNS2=xxx.xxx.xxx.xxx # DOMAIN=lab.foo.com bar.foo.com