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Bug 1057492 - mount-local should give a clearer error if root is not mounted
Summary: mount-local should give a clearer error if root is not mounted
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: libguestfs
Version: 7.0
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Richard W.M. Jones
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On: 1057504 1062533 1062890
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-01-24 09:00 UTC by yuliu
Modified: 2014-06-18 02:02 UTC (History)
6 users (show)

Fixed In Version: libguestfs-1.22.6-19.el7
Doc Type: Bug Fix
Doc Text:
Clone Of:
: 1057504 1057510 (view as bug list)
Environment:
Last Closed: 2014-06-13 10:31:17 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description yuliu 2014-01-24 09:00:37 UTC 
Description of problem:
Before run "mount-local localmountpoint " you should mount filesystem to "/" first.
This prerequisites should be added to help info.

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


How reproducible:
100%

Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:
Comment 1 Richard W.M. Jones 2014-01-24 09:07:09 UTC 
If you use mount-local without mounting something on / then you get
odd errors:

$ mkdir -p /tmp/mnt
$ guestfish -x -N fs mount-local /tmp/mnt : mount-local-run
libguestfs: error: lstat: lstat_stub: you must call 'mount' first to mount the root filesystem
libguestfs: error: lstat: lstat_stub: you must call 'mount' first to mount the root filesystem

Basically what happens is that mount-local itself doesn't do the
usual "is root mounted" daemon check (because it cannot - it is not
running in the daemon).  However any later commands which are run
by mount-local do this check, and give errors.

It would be better if mount-local itself did this check and gave
a clearer error if root was not mounted.
Comment 3 Richard W.M. Jones 2014-02-05 16:52:16 UTC 
Upstream fix is 0e2489974b91e4728d544fe2aa08c2a1c9deb365.
Comment 6 yuliu 2014-02-10 07:47:54 UTC 
Version: libguestfs-1.22.6-19.el7.x86_64

When use mount-local without mounting something on "/":

# guestfish -x -N fs mount-local /tmp/mnt : mount-local-run

libguestfs: error: you must call 'guestfs_mount' first to mount a filesystem on '/'.
Note: '/tmp/mnt' is still mounted.  Use 'guestunmount /tmp/mnt' to clean up.

It gives a clear error info about what to do first.
Comment 7 Ludek Smid 2014-06-13 10:31:17 UTC 
This request was resolved in Red Hat Enterprise Linux 7.0.

Contact your manager or support representative in case you have further questions about the request.
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