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Questions tagged [sparseimage]

14 questions
25
votes
3 answers

How to make an encrypted sparseimage larger on osx

I have an encrypted volume on OSX Lion. How do I make it larger?
hvgotcodes
  • 938
17
votes
2 answers

Shrink a .sparseimage

I have a .sparseimage that occupies 90GB of space on my hard drive despite only having 30GB of files in it. How can I reclaim the empty space used by the .sparseimage and compact the file?
squircle
  • 6,773
6
votes
1 answer

How to create sparse, bootable Linux backup images?

I've set up a new Linux workstation and would like to create a backup image in order to save time in case something breaks. This is the situation: Workstation: 512 GB SSD, 12 GB used, ext4 file system, may contain bad blocks Backup drive: 64 GB USB…
david
  • 347
5
votes
1 answer

can sparsebundles be locked to make them read-only?

With sparseimage files, I can set the Locked attribute in 'Get Info' to prevent modifying its content. Doing so with sparsebundles has no effect it seems. At the moment I'm storing my sparsebundle inside of a sparseimage to get this easy-lock…
noop
  • 53
3
votes
0 answers

Is it safe to cancel hdiutil compact?

A sparse image is a type of disk image file used on Mac OS X that grows in size as the user adds data to the image, taking up only as much disk space as stored in it (quoth Wikipedia). If a sparse image takes up more space than the data it contains,…
Frungi
  • 215
2
votes
1 answer

Change sparse attribute from an .iso file on Windows 8.1

I have few very large .iso files in my computer altogether about 1TB. All of them are sparse files and i want to remove the sparse flag/attribute from them, is there a way how to do it? Maybe some application or so? I know when i copy the file the…
Ricsie
  • 123
  • 1
  • 4
2
votes
0 answers

Is it possible to open encrypted sparseimage files from MacOS X on Windows?

Windows programs MacDrive Pro and TransMac are capable to open MacOS X .sparseimage files. Does it include encrypted sparseimage files ? Are there other programs to open such files ?
epsicot
  • 331
2
votes
0 answers

How can I know which blocks/sectors were last written to on an NTFS volume?

Is there a tool that would enable me to identify which blocks of data were last (most recently) written to an NTFS volume? Perhaps the NTFS volume's "$Journal" file might have information that can be extracted or analyzed / interpreted. Is there a…
Fleetwood
  • 49
2
votes
1 answer

What is LUKS and LVM2 PV in Gnome-Disk?

After a standard installation of Linux Mint Debian Edition 4, this is how the hard drive is partitioned according to gnome-disk: Ext4 is the standard file system for current Linux systems AFAIK. But what are the additional partitions, i.e. what is…
david
  • 347
2
votes
2 answers

Disable .DS_Store, Spotlight and other metadata on Mac disk image

I store my files (plaintext) on an encrypted Sparse Bundle Disk Image and backup this image (the ciphertext) with Rsync to another server. Sparse Bundle Disk Images create 8 MiB files ("bands") to store the ciphertext. The problem is: just opening…
William Entriken
  • 2,304
1
vote
1 answer

ext2explore for windows doesn't read ext3/4 sparse files what does?

I have some sparse files that I want to read/copy to windows but I can't find a FS reader that works any suggestions? EDIT: to clarify the sparse files are living on an ext3 partition it's this partition that I can't read correctly. I had a 70 odd…
sabgenton
  • 684
1
vote
2 answers

How can I create a scenario to test zerofree?

What I am doing I am studying the filesystem image sparse tool: zerofree. I imagine the steps to create the scenario should be that: create a file system image. use some way to fill it. clear it, but the actual space usage is not changed, which…
metaphor
  • 41
0
votes
1 answer

sparse file moving/copying over NFS

I created a sparse file with truncate -s 4T image.img on an ext4 file system which I mount over NFS. The following test shows that the system has trouble with the recognition of sparse files: both cp --sparse=always /mnt/data_extension/a.img…
Kalle Richter
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0
votes
2 answers

virt-sparsify doesn't reduce image size

I am trying to reduce image size using dd conv=sparse, but no matter what I do, the image size is still huge. I have a CentOS image which is around 136GB. The main reason it being so big is that it has a 128GB swap. When I ran du -sh, this is the…
CSLser
  • 101