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I used scsi_debug to create a 4k sector virtual disk:
modprobe scsi_debug dev_size_mb=128 sector_size=4096
I then used 'gdisk' to create lots of partitions, and used 'hexdump'
to examine what was written to disk.
(cherry picked from commit 2fd2c85f6a42575749b9d38bd2f1512ae25db760)
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(cherry picked from commit 84d450210b3ea01de3fe26b2cf1db2b492d77aec)
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(cherry picked from commit 6e3de762782b050fe7ad675297089a42026f05c4)
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Update the test to use the --format and --output-format flags.
(cherry picked from commit 88ba4da4d6c07762fc95c96ea67019f0ebf4677c)
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(Thanks Grant Williamson for finding and fixing this problem)
(cherry picked from commit a93d4a9dc1aea6940886c85d4b09f21cbfc80969)
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(cherry picked from commit b7122eaa58ccd153a8c39bc3b6f890755c5df089)
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(Includes fix by RWMJ)
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Update all copyright dates to 2012.
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Remove generated .depend files from source control, and don't barf when they
don't exist while bootstrapping.
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This adds the virt-resize --debug-gc option which causes
virt-resize to call Gc.compact before exiting, allowing
GC and memory problems to be tested.
Add an extratest which runs virt-resize under valgrind.
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This library is not available in RHEL 6, and in any case removing the
dependency is a simple change.
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Commit 2910413850c7d9e8df753afad179e415f0638d6d caused Windows 7
resizes to break with the 0xc0000225 boot error.
Change the --align-first auto (default) option so that it is more
conservative about when it moves the first partition. In particular
it doesn't move it if it's already aligned (as it is for Win7), nor if
there is more than one partition (also Win7).
Tested with: Windows XP, 2003, 7, Ubuntu 10.10 and RHEL 5.
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Also we only permit MBR (DOS) and GPT partition tables. In theory
previously we allowed other partition table types, but it is unlikely
that it would have worked in reality.
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Add a dependency so these tools are rebuilt from scratch if the
Guestfs API changes. This prevents the error:
"[...] make inconsistent assumptions over interface Guestfs".
This commit includes the generated changes to .depend files.
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The first partition can now be aligned. We fix the bootloader
correctly for Windows by adjusting the "Hidden Sectors" field.
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The old code mixed the business of planning the layout of the target
partitions with the creation of the target partitions. The
replacement code separates these into two tasks: firstly we create a
new 'partitions' list with the target layout, secondly this directly
drives the creation of the partitions.
As part of this change I have *removed* the old code that was supposed
to handle extended/logical MBR partitions. It simply didn't work, and
didn't have any hope of working, and there is a separate bug open to
fix it.
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This field simply contained a duplicate copy of p_part.part_size.
There is no functional change in this commit.
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This gives us effectively 64 KByte alignment, optimal for all current
types of storage.
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There are two benefits:
- the progress bars look better
- there is a reasonably accurate estimate of how long each operation
will take
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This avoids conflicts with the globally installed libguestfs
appliance, or lets us build in multiple local directories at the same
time without conflicts.
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If you use --LV-expand then filesystems in LVs can be resized too.
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Use the non-deprecated g#ntfsresize_opts API call, and also add
the --ntfsresize-force option for forcing resize.
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This is now used consistently across all the documentation.
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Remove all the run*locally scripts and replace with a single top level
./run shell script.
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This is a fairly straightforward translation of Perl virt-resize into
OCaml. It is bug-for-bug and feature-for-feature identical to the
Perl version, except as noted below.
The motivation is to have a more solid, high-level, statically safe
compiled language to go forwards with fixing some of the harder bugs
in virt-resize. In particular contracts between different parts of
the program are now handled by statically typed structures checked at
compile time, instead of the very ad-hoc unchecked hash tables used by
the Perl version.
OCaml and the ocaml-pcre library (Perl-Compatible Regular Expressions
bindings for OCaml) are required.
Extra features in this version:
- 32 bit hosts are now supported.
- We try hard to handle the case where the target disk is not "clean"
(ie. all zeroes). It usually works for this case, whereas the
previous version would usually fail. However it is still
recommended that the system administrator creates a fresh blank disk
for the target before running the program.
- User messages are a bit more verbose and helpful. You can turn
these off with the -q (--quiet) option.
There is one lost feature:
- Ability to specify >= T (terabytes) sizes in command line size
expressions has been removed. This probably didn't work in the Perl
version.
Other differences:
- The first partition on the target is no longer aligned; instead we
place it at the same sector as on the source. I suspect that
aligning it was causing the bootloader failures.
- Because it's easier, we do more sanity checking on the source disk.
This might lead to more failures, but they'd be failures you'd want
to know about.
- The order in which operations are performed has been changed to make
it more logical. The user should not notice any functional
difference, but debug messages will be quite a bit different.
- virt-resize is a compiled binary, not a script.
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