Bug 975753
| Summary: | "virt-resize --expand" and "virt-resize --resize" outputs error message for Win2008 32bit OS | ||||||||
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| Product: | Red Hat Enterprise Linux 6 | Reporter: | bfan | ||||||
| Component: | libguestfs | Assignee: | Richard W.M. Jones <rjones> | ||||||
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> | ||||||
| Severity: | medium | Docs Contact: | |||||||
| Priority: | medium | ||||||||
| Version: | 6.5 | CC: | bfan, leiwang, wshi | ||||||
| Target Milestone: | rc | ||||||||
| Target Release: | --- | ||||||||
| Hardware: | Unspecified | ||||||||
| OS: | Unspecified | ||||||||
| Whiteboard: | |||||||||
| Fixed In Version: | libguestfs-1.20.9-5.el6 | Doc Type: | Bug Fix | ||||||
| Doc Text: |
Cause: virt-resize fails on Windows guests that are in an inconsistent state (ie. need a CHKDSK).
Consequence: You cannot resize such guests.
Fix: No fix, the problem is documented in the man page instead.
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Story Points: | --- | ||||||
| Clone Of: | Environment: | ||||||||
| Last Closed: | 2013-11-21 04:45:15 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: | |||||||||
| Attachments: |
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Is libguestfs-winsupport installed? If so, can you enable debugging so we get to see the actual error message. http://libguestfs.org/guestfs-faq.1.html#debugging-libguestfs BTW if libguestfs-winsupport wasn't installed, this would still be a bug -- we'd want to improve the error message. (In reply to Richard W.M. Jones from comment #1) > Is libguestfs-winsupport installed? > > If so, can you enable debugging so we get to see the > actual error message. > http://libguestfs.org/guestfs-faq.1.html#debugging-libguestfs Yes, libguestfs-winsupport already installed, It works for Win2008 64bit OS (In reply to bfan from comment #3) > (In reply to Richard W.M. Jones from comment #1) > > Is libguestfs-winsupport installed? > > > > If so, can you enable debugging so we get to see the > > actual error message. > > http://libguestfs.org/guestfs-faq.1.html#debugging-libguestfs > > Yes, libguestfs-winsupport already installed. OK, I still however need to see the debug output. > It works for Win2008 64bit OS. Strange ... However there are lots of ways that ntfsresize can fail. Most commonly because the disk wasn't shut down cleanly and ntfsresize refuses the resize disks that need a chkdsk. Unfortunately in Win8 this is the default ... Created attachment 763195 [details]
debug output
(In reply to Richard W.M. Jones from comment #4) > (In reply to bfan from comment #3) > > (In reply to Richard W.M. Jones from comment #1) > > > Is libguestfs-winsupport installed? > > > > > > If so, can you enable debugging so we get to see the > > > actual error message. > > > http://libguestfs.org/guestfs-faq.1.html#debugging-libguestfs > > > > Yes, libguestfs-winsupport already installed. > > OK, I still however need to see the debug output. > > > It works for Win2008 64bit OS. > > Strange ... However there are lots of ways that ntfsresize > can fail. Most commonly because the disk wasn't shut down > cleanly and ntfsresize refuses the resize disks that need > a chkdsk. Unfortunately in Win8 this is the default ... [root]# cat test.sh virt-list-partitions -lh Win2008-32-hvm.raw qemu-img create new_Win2008-32 15.6G export LIBGUESTFS_DEBUG=1 export LIBGUESTFS_TRACE=1 virt-resize --expand /dev/sda1 Win2008-32-hvm.raw new_Win2008-32 [root]# bash test.sh > output.log 2>&1 According to the debug info, do "chkdsk /f" on Windows, then virt-resize again, works well. I'll put a note in the manual about this. Verified with libguestfs-1.20.9-5.el6
Found this section in virt-resize man page
"
WINDOWS CHKDSK
Windows disks which use NTFS must be consistent before virt-resize can be used. If the ntfsresize operation fails, try booting the original VM and
running "chkdsk /f" on all NTFS partitions, then shut down the VM cleanly. For further information see:
https://bugzilla.redhat.com/show_bug.cgi?id=975753
After resize Windows may initiate a lengthy "chkdsk" on first boot if NTFS partitions have been expanded. This is just a safety check and (unless
it find errors) is nothing to worry about.
"
Change the status to verified
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. http://rhn.redhat.com/errata/RHSA-2013-1536.html |
Created attachment 762816 [details] command log with debug info Description of problem: "virt-resize --expand" and "virt-resize --resize" outputs error message for Win2008 32bit OS, but can get the expected partition in new disk. Version-Release number of selected component (if applicable): libguestfs-1.20.8-5.el6.x86_64 How reproducible: 100% Steps to Reproduce: # for virt-resize --expand [root]# virt-list-partitions -lh Win2008-32-hvm.raw /dev/sda1 ntfs 14.6G [root]# qemu-img create new_Win2008-32 15.6G Formatting 'newWin2008-32', fmt=raw size=16750372454 [root]# virt-resize --expand /dev/sda1 Win2008-32-hvm.raw new_Win2008-32 # for virt-resize --resize [root]# virt-list-partitions -lh Win2008-32-hvm.raw /dev/sda1 ntfs 14.6G [root]# qemu-img create newWin2008-32 15.6G Formatting 'newWin2008-32', fmt=raw size=16750372454 [root]# virt-resize --resize /dev/sda1=+200M Win2008-32-hvm.raw newWin2008-32 Actual results: Copying /dev/sda1 ... 100% ⟦▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒⟧ 00:00 Expanding /dev/sda1 using the 'ntfsresize' method ... Fatal error: exception Guestfs.Error("ntfsresize: command failed: yes | ntfsresize -P /dev/sda1 (enable debug to see the full error message)") Expected results: Copying /dev/sda1 ... 100% ⟦▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒⟧ --:-- Expanding /dev/sda1 using the 'ntfsresize' method ... Resize operation completed with no errors. Before deleting the old disk, carefully check that the resized disk boots and works correctly. Additional info: 1. Can get the expected partition in new disk though command outputs error message 2. It works with Win2008 64bit OS and other OS 3. It works in rhel7 (libguestfs-1.22.2-1.el7)