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Bug 1166509

Summary: anaconda does not use _netdev option when mounting filesystems on iSCSI disk during install
Product: Red Hat Enterprise Linux 7 Reporter: Chris Leech <cleech>
Component: python-blivetAssignee: David Lehman <dlehman>
Status: CLOSED ERRATA QA Contact: Release Test Team <release-test-team-automation>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 7.1CC: bgoncalv, jstodola, lmiksik, mbanas
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: python-blivet-0.61.0.21-1 Doc Type: Bug Fix
Doc Text:
Cause: Anaconda was not mounting iSCSI devices with the _netdev option during installation. Consequence: When shutting down the installation the devices may not be cleanly unmounted, which could cause problems when rebooting with the unclean filesystem. Fix: Add the _netdev option when mounting iSCSI devices during installation. Result: Successful reboot.
 Story Points: ---
Clone Of: Environment:
Last Closed: 2015-03-05 14:08:00 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:
Bug Depends On:    
Bug Blocks: 1065973    

Description Chris Leech 2014-11-21 06:22:11 UTC 
Description of problem:

During install the target filesystems under /mnt/sysimage are not mounted using the _netdev option when they are on an iSCSI disk.  The installed fstab does have the _netdev option set.

Because anaconda does not unmount the filsystems explicitly at the end of installation, without the _netdev flag the filesystems may not be unmounted cleanly before the network connection or iSCSI sessions are removed.

This is causing the post-install reboot to hang in some cases (bz 1065973)

Version-Release number of selected component (if applicable):

anaconda-19.31.107-1.el7.x86_64.rpm

Additional info:

Note that this won't fully solve the problem until systemd recognise the _netdev option for dynamically generated mount units instead of just the fstab-generator (bz 1161417)
Comment 2 Chris Leech 2014-11-25 06:07:06 UTC 
depending on what solution to bz 1161417 ends up being, this may be required to unblock bz 1065973
Comment 4 Jan Stodola 2015-01-22 12:44:42 UTC 
/mnt/sysimage is mounted with the _netdev option:

1) /mnt/sysimage is a raw partition on iSCSI disk:
[anaconda root@localhost ~]# mount | grep "sysimage "
/dev/sda1 on /mnt/sysimage type xfs (rw,relatime,seclabel,attr2,inode64,noquota,_netdev)

2) /mnt/sysimage is a LV with PVs on both local (vda) and iSCSI (sda) disks:
[anaconda root@localhost ~]# lsblk /dev/vda /dev/sda
NAME            MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
vda             252:0    0   10G  0 disk 
|-vda1          252:1    0  500M  0 part /mnt/sysimage/boot
`-vda2          252:2    0  9.5G  0 part 
  `-rhel00-root 253:3    0 17.5G  0 lvm  /mnt/sysimage
sda               8:0    0   10G  0 disk 
`-sda1            8:1    0   10G  0 part 
  |-rhel00-swap 253:2    0    2G  0 lvm  [SWAP]
  `-rhel00-root 253:3    0 17.5G  0 lvm  /mnt/sysimage
[anaconda root@localhost ~]# mount | grep "sysimage "
/dev/mapper/rhel00-root on /mnt/sysimage type xfs (rw,relatime,seclabel,attr2,inode64,noquota,_netdev)
[anaconda root@localhost ~]#

Tested with python-blivet-0.61.0.22-1.el7.

Moving to VERIFIED.
Comment 6 errata-xmlrpc 2015-03-05 14:08:00 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-0313.html