Rebuild directory in an encrypted sparsebundle

I have a passworded/encrypted sparsebundle created bu disk utility. It needs to have it's directory rebuilt. Diskwarrior can't do it! Does anybody have any suggestions?
Thanks

The following link is for FileVault, but it may apply to your situation:
Mac OS X 10.3_ 10.4- FileVault - How to verify or repair a home directory image.
You may not be able to repair it if the sparsebundle cannot be mounted. If you can mount it, then you should be able to use Disk Utility to try and repair it.

Similar Messages

Rebuild Directory

Hi.
Been having too much issues with Server app and Directory.
I need to plan to rebuild directory and I understand that in order to preserve user, I would have to use Workgroup Manager's Export/Import function?
My main concern is it's an active sever with Cal and wiki data. Therefore, I need to ensure that the directory rebuild will not affect those data access.
Tip/Help?
Thanks.
matthew

The following link is for FileVault, but it may apply to your situation:
Mac OS X 10.3_ 10.4- FileVault - How to verify or repair a home directory image.
You may not be able to repair it if the sparsebundle cannot be mounted. If you can mount it, then you should be able to use Disk Utility to try and repair it.

How to restore a file inside an encrypted sparsebundle file saved in time machine

Hi,
On Mac OS X 10.6.6, I use an encrypted sparsebundle file to save sensitive corporate files (not using the Filevault built-in feature), mounting it and using it as a folder.
The sparse bundle is in my Documents folder which is part of my Time Machine backup.
Unfortunately, timemachine doesn't actually see what's inside the sparsebundle file and can't restore only one of the files from it.
I always have to restore the full sparsebundle, which is 34G as of now...
Is there a way to let timemachine index and store the content of the encrypted sparsebundle, without compromising the confidentiality of course?
What other completely different solution should I use otherwise?
Thanks.

mimizone wrote:
everytime it says it can't be mounted the reason being "no mountable filesystem"
the file size reported by the Finder is blank, which I am not sure is related.
Not a good sign. That's the message OSX sends when a disk image is corrupted. Can you restore the whole thing, and still see the contents?
It seems an external drive or partitioning the drive would be required, unless using sparsebundle files would do the same.
A separate drive or partition, each with different passwords, would probably work.
side question, it seems TM saved the entire modified files and not only the modified blocks. Does it behave the same for sparsebundles? it doesn't seem to copy my 34G file everytime.
Do you have a "sparse disk image" or a "sparse bundle disk image"? As I understand it, Time Machine saves the entire contents of a sparse disk image if anything's changed, but only the modified "bands" of a sparse bundle disk image (but only when they're not mounted).
If you use an encrypted HD or partition, it should work normally -- just saving the individual files that are changed, and allowing you to view and restore individual items.

JFileChooser hang when brosing root directory of Truecrypt Encrypted drive

Hi,
I have been consistently having a problem with netbeans where if I try to browse to the root directory of my encrypted drive, it hangs for a long time (say 5 - 10 minutes). It then eventually comes back with the correct file choose dialog.
At first I thought this was just a Netbeans issues. However, I was also developing a Java Swing app (in eclipse) that uses a JFileChooser dialog. If I browse a standard drive I have no problems. If I then go to browse my encrypted file, I get this hang. When I compared the netbeans scenario with this, the only thing in common is that I was trying to browse my encrypted drive.
This only seems to happen when I want to browser to the root directory of this drive. If I am able to get the dialog to open (on a normal drive) and I directly enter a sub directory of the encrypted drive into the file name field, I can browse there without the hang.
So just wondering if anyone else has had this problem. I know it isolated to swing JFIleChooser, to at least swing on Windows XP as I don't get this problem through the native file chooser, or through the native file chooser via SWT.
My drive was encrypted using Truecrypt.
Truecrypt details
Size: 41943039488 bytes
Type: Normal
Encryption Agorithm: AES
Key Size: 256 bits
Block Size: 128 bits
Mode of Operation: LRW
Can anyone give me some idea of what might be happening here?
Regards
Steve

I don't know if this is what you are looking for.
If you need the real roots, you can use this
File[] file = File.listRoots();
It should return the available filesystem roots.

Can TM backup to an encrypted sparsebundle?

I created an encrypted sparsebundle on an external 1TB drive, intending to create a new TM there. When I get to the "Select Disk" option, only the drive itself ("OWC 1TB") shows up available. The sparsebundle titled "MBP Time Machine on OWC.sparsebundle" doesn't.
If it's possible to do this, what step(s) have I missed?
Thanks.

I think you can do this, but it's not a great idea. Encrypt stuff you must encrypt using a sparsebundle on your mac, then TM that.

Unable to log in to network homes after rebuilding directory

I am running an Xserve with system Version 10.4.7 (build 8J135) as an Open directory Master. My primary clients are Power Mac G5's running 10.4.7 as well. We are running networked home directories through afp. Just updated both systems this summer.
All was working fine until the first day of classes. Trying to fix a minor problem I seem to have created a bigger one. Laying the original problem aside, (lets just say that deleting the 80 user directory without a viable back-up was not the correct solution) after I reentered all the users by hand I started getting this message when I attempted to login with any of the network accounts:
“You are unable to connect to the user “Knewtson” at this time. Logging in to the account failed because an error occurred. The home folder for this user is located on an AFP or SMB server. Contact your system administrator for help.”
I did contact my IT support person and the two of us spent several days trying different options on multiple servers with multiple clients. What we finally discovered was this: If I delete a user and rebuild them exactly the same it would start working correctly.
So, I came in this morning and (for a second time this week) reentered all of the users. As I did this I periodically tested the new users on several of the lab computers to make sure all was working correctly. All was well when I finished.
Then I began adding the new users for this semester. I only added one before it all broke again. About half of the machines in the lab started giving me the same error message. In frustration I rebooted the server and all of the workstations in the Lab… now I get the error message on all of the machines.
Through all of this afp and password authentication has never failed. I can connect to the server through the network browser with any one of the user accounts and have all of the right file permissions and access to the correct home directories.
Checking the log files this seems to be the error I find associated to each failed attempt:
LDAP Log:
Sep 9 22:54:53 gtc110 slapd[50]: SASL [conn=445] Failure: no user in database\n
In the came second I get this in the Password service log.
Password Service log:
Sep 9 2006 22:54:02 RSAVALIDATE: success.
Sep 9 2006 22:54:02 AUTH2: {0x45032389555c13fe000000cd000000cd, Knewtson } DIGEST-MD5 authentication succeeded.
Sep 9 2006 22:54:02 QUIT: {0x45032389555c13fe000000cd000000cd, Knewtson } disconnected.
Anybody have any suggestions? Please.
Power Mac G5 Quad (office) Xserve G4 (server) Mac OS X (10.4.7) OSX Lab Manager
Power Mac G5 Quad Mac OS X (10.4.7) OSX Lab Manager

The server is not serving DNS. On campus we use two different DNS servers and both the clients and the X serve seem to be bound correctly for forward and reverse lookups. My friend in IT is checking with the administrator of the DNS server to varify that this is correct. but I am afraid this is not my problem.
I did find another error in the LDAP log.
Sep 11 03:15:04 gtc110 slapd[50]: do_search: invalid dn (cn=mounts, dc=gtc110,cd=shaw,dc=wmich,dc=edu)\n
Sep 11 03:15:04 gtc110 slapd[50]: do_search: invalid dn (cn=groups, dc=gtc110,cd=shaw,dc=wmich,dc=edu)\n
Kerbrose in no running on the server either, and the machine fails to Kerbrosize with any log-in. I do not have a need to have Kerbros running so I haven't worried about this.
Problem Continues.

DiskWarrior/ Should I Rebuild Directory Often

is it a good idea to rebuild your directory on main and audio drives even if your having no problems? although a graph ran on drive told me that 10% of folders where misplaced or something of that nature.
thanks

I'm not an authority on any of this, but I think it depends on what you define as "often".
I personally don't think you need to do it weekly, or even bi-monthly, or maybe even monthly for that matter. It really depends on how often you use your system, how often you install or update software, etc...
I think it's more important to do regular maintenance, like repairing permissions once or twice a week, or running Cocktail or Onyx once a month or so.
If, however, you are noticing things acting weird, by all means, run Disk Warrior.
I also try an keep a fairly updated copy of my system drive, usually running Super Duper once a month, or maybe once every 3 weeks. I usually (but not always) try and run Disk Warrior right before the cloning process, to insure a solid copy.

Lost Bridge when hard drive crashed. Restored bridge on new computer. Recovered hard disk using DiskWarrior but cannot rebuild directory due to critical errors. Now need to restore just photos to new computer. Need to know which file in Bridge photos re

After multiple recovery attempts I finally used DiskWarrior to download saved files/folder/applicatiions to external hard drive. I cannot get old version (5.0) of bridge to run. Redownload Bridge (5.1) but still need to recover my photos.
Any advise on how this can be accomplished.

Bridge is only a browser. It does not contain any files. You need to find out where you saved your photos, and hope they are still accessible on the crashed drive... Just copy them over to your new drive.

Can you resize a encrypted disk image on a sparsebundle disk image?

I created a 50GB encrypted sparsebundle disk image on my desktop. I named it BOB and also named the encrypted disk image BOB.
It's now full.
I've just made it 60GB with Disk Utility.
I opened it but on trying to copy a 4GB file into it, I got a message saying my sparsebundle disk image is too small.
Note: Disk Utility says the following:
BOB sparsebundle is 61.4GB
mounted volume BOB is 52.1GB
Hope that's clear.
Any help would be most appreciated.

I created a 50GB encrypted sparsebundle disk image on my desktop.
hdiutil resize -size 60g BOB.sparsebundle
Result: "resize failed. File or directory does not exist"
You need to tell hdiutil where to find the target BOB.sparsebundle file. You could either specify a relative or absolute file path in the command itself, or else you could first change the current working directory to the Desktop. So if you wanted to pursue using Terminal, the second way would be to enter this command:
cd ~/Desktop
and then try the same hdiutil command again.
I'm not familiar with the hdiutil command, and I don't know if the above would work. My own feeling is that trying to manipulate an image file by experimenting with hdiutil entails a risk of corrupting the image file and losing its contents, and it is therefore essential to back up the image file first. But if you are going take the time and space needed for a backup, you might as well instead just create a new, empty 60GB (or larger!) sparsebundle disk image, and copy the contents of your old disk image into the new one. This would not involve any risks, and you'd end up with the larger disk image that you wanted. You could then delete the original, if you wished.

Restoring a user directory encrypted with FileVault

The hard drive on my PowerBook (which was running Tiger) was hosed last week. "Luckily", I had been making regular backups of the entire hard drive onto a Firewire drive.
Meanwhile, I've got a spanking new iMac here (running Leopard). I plugged in the backup drive hoping to restore all my precious files, only to discover that everything seems accessible EXCEPT the user directory, which was encrypted with FileVault. In Finder, it looks like an alias that's not pointing to anything.
Now I'm panicking. It looks like everything is there, in that the directory containing the encrypted user directory takes up about as much space as I'd expect it to. I can access everything off the hard drive that's not encrypted. But all the stuff that's actually important to me is inaccessible.
If I can't recover this directory, I'm screwed. But I have no idea where to start. Can anyone help? Thanks in advance (and more later if you help!)

Glad you recovered it!
As I recall, the Filevault encrypted sparseimage is normally kept in /HD/Users/username, but when you are logged into that account the username folder is temporarily renamed .username (with a leading period) so as to made invisible, and a temporary alias called username is created in Users instead.
If so, then it sounds from your description of your files as if you may have been logged into the Filevault account when you made the backup clone. I don't know if you plan to continue to use Filevault in the future, but if so, here is a tip from SuperDuper's documentation:
If you’re using FileVault, your home folder and all its data is stored in a single, large file that’s open and active when you’re logged in. Because of this, you should create a non-FileVault account for use with SuperDuper! Then, log out of your FileVaulted account, into this new account, and run SuperDuper! from there. This ensures that the special FileVault volume is put away and backed up cleanly.
---------

SMB/CIFS share of encrypted windows directory

I have a windows 8.1 pro stand alone computer. It has one directory that is encrypted. This computer shares that directory and others with a linux computer. Just after the windows 8.1 computer reboots, linux is unable to access the encrypted directory, but
it can access other unencrypted directories. Once I log on the windows computer as a user with access to the encrypted directory, the linux computer is suddenly able access the encrypted folder. The linux computer can continue to access the encrypted directory
from linux after the user logs off the windows computer.
To be able to access the encrypted directory, I only need to log on to the windows console, i don't need to start any programs. It's as if windows cannot access some kind of key until the a user with access to the encrypted folder logs on to the windows
system from the console. I've tried many different linux command line options for opening the windows share and it doesn't seem to change the behavior. It is typically mounted with:
mount
-t cifs //192.168.1.2/efsdirectory ~/mnt --verbose -o rw,user=username,uid=1000,gid=1000
The behavior is identical if a directory above the efs directory is mounted.
I searched all of the windows event logs for errors from the failed access to the encrypted directory, but I don't see any.
Thanks for your help.

Hi,
Thanks for your help.
if all your systems are in Domain or not.
The windows and linux computers are not on a windows domain, just the same workgroup that is named "workgroup".
Also please help confirm if "encrypted" means encrypted by EFS (or Bitlocker).
The directory that i'm trying to access is encrypted with EFS. Since this is a desktop computer, it does not use bitlocker
What's the exact username here in your command? Is it the same account as the one you logged on Windows 8.1?
the username in the unix mount command is the same one used to log onto the windows system. The linux username is different, but that's specified in the mount command with the UID and GID.
The problem occurs after a full reboot, I have disabled the windows 8.1 fast reboot 'feature'.
I'll check tonight, but is it possible that the "Encrypting file system service" is not starting when I mount the drive? Perhaps it only starts when I log on. I noticed that this service is set to 'automatic' on another (windows 7) computer.
Here's a timeline of what happens:
1) Log off of the windows computer. Reboot. (not fast boot)
2)
mount drive on linux computer
3) brouse directory structure on linux. Can open files that are not in encrypted directories. Cannot open files that are in encrypted directories.
4) log onto windows machine
5) brouse directory structure. Now I can open files that are in encrypted directories.
6) log off windows machine
7) brouse directory structure. I can still open files that are in encrypted directories.
Looking at the windows logs, I can see 2 login entries exactly when I mount the drive:
Special privileges
assigned to new logon.
Subject:
Security ID:
HOSTNAME\USERNAME
Account Name:
USERNAME
Account Domain:
HOSTNAME
Logon ID:
0x43C3B
Privileges:
SeSecurityPrivilege
SeBackupPrivilege
SeRestorePrivilege
SeTakeOwnershipPrivilege
SeDebugPrivilege
SeSystemEnvironmentPrivilege
SeLoadDriverPrivilege
SeImpersonatePrivilege
An account was successfully
logged on.
Subject:
Security ID:
NULL SID
Account Name:
Account Domain:
Logon ID:
0x0
Logon Type:
3
Impersonation Level:
Impersonation
New Logon:
Security ID:
HOSTNAME\USERNAME
Account Name:
USERNAME
Account Domain:
HOSTNAME
Logon ID:
0x43C3B
Logon GUID:
{00000000-0000-0000-0000-000000000000}
Process Information:
Process ID:
0x0
Process Name:
Network Information:
Workstation Name:
Source Network Address:
192.168.1.7
Source Port:
58432
Detailed Authentication
Information:
Logon Process:
NtLmSsp
Authentication Package:
NTLM
Transited Services:
Package Name (NTLM only):
NTLM V2
Key Length:
0
Thanks again.

Password on encrypted volume not being "forgotten"

I've set up an encrypted disk image (sparsebundle) and written a short bash script to simulate the old-style FileVault (to protect just a single account.) It uses a folder within the encrypted volume as the home folder of an account that I use for sensitive information. While it took a little while to get the permissions/ownership right on the volume and image, it works fine. The other tricky part was that I have the script close the volume after it detects the account has been logged out -- I discovered I needed to wait a while for the logout to complete before closing the volume (otherwise it seemed like the system was trying to read or write from the volume even after "who" showed the account was logged out, and so it created a new home directory that confuses things.) Now, the "problem" I have is this. The first time the script opens the encrypted volume the system of course asks for the password. Thereafter unless I reboot (logging in and out of the non-protected account I start the script from doesn't help) and possibly after a *long* time, tthe system seems to be remembering the password to the file -- on subsequent uses of the script the volume is opened without me being asked for the password. I have examined carefully what I do when entering the password to make sure it's not saved in the keychain -- and indeed it isn't (verified by looking at the keychain). Does anyone have any idea where the system (presumably the Finder) is saving the password and how to get it to "forget" it? (I just realized I haven't checked to see if the password is "remembered" system-wide or just in the un-protected account.) I've looked in both the system and account set of caches and nothing is obvious (all the finder cached data is in a single database, presumably in some obscure format.)
Ted Lee
Minnetonka, MN

Some more experiments. Since I was using the encrypted image to simulate FileVault, I put the image in the /User directory (which is where the old FileVault put its image for an account.) This time I created another encrypted sparsebundle in a directory on my desktop -- the system did *not* remember the password for it (I had to enter it each time I opened it.) More interestingly, diskutil *knew* about and remembered the image I'd put in /Users, but not the one on my desktop. Diskutil even said that the volume inside it was an unmounted (encrypted) partition. So it appears the system is "remembering" images that are in the /User directory -- I have no idea if there are other directories (say, /Library) where it would be remembered too. But the "memory" has something to do with the live system -- since if I restart, the "memory" is lost. Whether it is kept in some none-obvious place in the file system that disappears on shutdown or restart or just in virtual memory I of course don't know.

Cannot unmount encrypted sparesbundle

Hi,
Upgraded from Snow Leopard to Lion and now each time I mount an encrypted sparesbundle and try to unmount it I get the following log:
02.08.2011 19:54:15,445 fseventsd: Events arrived for /Volumes/DEVONthink Vault after an unmount request! Re-initializing.
02.08.2011 19:54:15,445 fseventsd: creating a dls for /Volumes/DEVONthink Vault but it already has one...
02.08.2011 19:54:16,101 com.apple.launchd: (com.apple.loginwindow.secureerase) Failed to count the number of files in "/var/db/fv_secure_erase.jobs": No such file or directory
02.08.2011 19:54:16,101 com.apple.launchd: (com.apple.loginwindow.secureerase) Failed to count the number of files in "/var/db/fv_secure_erase.jobs": No such file or directory
02.08.2011 19:54:16,125 fseventsd: read_disk_log: problems with history file: /Volumes/DEVONthink Vault/.fseventsd/6365733784679597 (fd -1, errno 2 ; is_reg 0; uid 0/0 gid 0/0)
02.08.2011 19:54:16,125 fseventsd: scan_for_old_events_callback: mount point /Volumes/DEVONthink Vault appears to be gone!
02.08.2011 19:54:16,154 fseventsd: disk logger: failed to open output file /Volumes/DEVONthink Vault/.fseventsd/63657337848efac8 (No such file or directory). mount point /Volumes/DEVONthink Vault/.fseventsd
02.08.2011 19:54:16,154 fseventsd: disk logger: failed to open output file /Volumes/DEVONthink Vault/.fseventsd/63657337848efac8 (No such file or directory). mount point /Volumes/DEVONthink Vault/.fseventsd
02.08.2011 19:54:17,241 com.apple.launchd: (com.apple.loginwindow.secureerase) Failed to count the number of files in "/var/db/fv_secure_erase.jobs": No such file or directory
02.08.2011 19:54:17,241 com.apple.launchd: (com.apple.loginwindow.secureerase) Failed to count the number of files in "/var/db/fv_secure_erase.jobs": No such file or directory
02.08.2011 19:54:17,242 com.apple.launchd: (com.apple.loginwindow.secureerase) Failed to count the number of files in "/var/db/fv_secure_erase.jobs": No such file or directory
02.08.2011 19:54:17,242 com.apple.launchd: (com.apple.loginwindow.secureerase) Failed to count the number of files in "/var/db/fv_secure_erase.jobs": No such file or directory
The bottom line is that I cannot unmount the sparesbundle. Each time I try to unmount it, it does so and the system mounts the image again.
It even mounts itself on logon (even though it's not present in the login items).
The "/var/db/fv_secure_erase.jobs" file / directory indeed is not there.
Any ideas what might be wrong?

Unfortunately, I also have the same problem in Lion, at random.
Not having enough space on my MacBook Pro drive I have my iPhoto library in an encrypted sparsebundle on an external USB. After I have done work in iPhoto,
SOMETIMES, selecting the mounted sparseimage and the USB external drive containing and using Command-E to eject them together works fine and other times it leads to a stuck unmount.... Spotlight may also be part of the problem: Console shows:
1/9/12 12:54:30.443 AM fseventsd: Events arrived for /Volumes/SparseImage320 after an unmount request! Re-initializing.
1/9/12 12:54:30.443 AM fseventsd: creating a dls for /Volumes/SparseImage320 but it already has one...
1/9/12 12:54:30.588 AM fseventsd: Events arrived for /Volumes/USBDrive320 after an unmount request! Re-initializing.
1/9/12 12:54:30.588 AM fseventsd: creating a dls for /Volumes/USBDrive320 but it already has one...
1/9/12 12:54:30.865 AM _spotlight: audit warning: soft /var/audit
1/9/12 12:54:30.866 AM _spotlight: audit warning: closefile /var/audit/20120109050433.20120109055430
1/9/12 12:54:30.867 AM _spotlight: audit warning: allsoft
Imran

Can't copy some files from FileVault Sparsebundle in Time Machine backup

I've got filevault turned on for my mac Mac Mini (10.6.2). I'm using Time Machine to back up to a firewire drive. There's plenty of space - my Mini hd has 250 Gb of 500 used, and I'm backing up to a 750Gb partition on the external drive. The initial backup went OK, and when I logged out it backed up my filevault-protected home directory. When I logged back in, I was able to browse the Backups.backupdb on the external drive, go to the users directory, and open the sparsebundle that was my filevault-protected home directory (after entering the password). I can browse through this backup of my home directory. However, when I try copying files from the backup of the home directory, I get an error:
The Finder can't complete the operation because some data in "(filename)" can't be read or written. (Error code -36).
I get this error for some files, but not all of them. I've tried running BatChmod to reset permissions on all files in my home directory, and then erasing the backup drive and having Time Machine recreate the backup. However I'm still having this problem.
I have also tried restoring the entire hard drive (to a 3rd external HD) by booting from the 10.6 DVD and going through the full-restore process. All of my files are fine when I restore using this method.
Is there something I should do so that I can restore individual files from the backup of my filevault sparsebundle? It is extremly inconvenient to have to do a full hard drive restore if all I want is a file or two, and of course if the motherboard on my mini dies and I can't get a close enough replacement computer, then I could really be up a creek.
Thanks,
John F
New York

feinberj wrote:
I've got filevault turned on for my mac Mac Mini (10.6.2). I'm using Time Machine to back up to a firewire drive. There's plenty of space - my Mini hd has 250 Gb of 500 used, and I'm backing up to a 750Gb partition on the external drive. The initial backup went OK, and when I logged out it backed up my filevault-protected home directory. When I logged back in, I was able to browse the Backups.backupdb on the external drive, go to the users directory, and open the sparsebundle that was my filevault-protected home directory (after entering the password). I can browse through this backup of my home directory. However, when I try copying files from the backup of the home directory, I get an error:
The Finder can't complete the operation because some data in "(filename)" can't be read or written. (Error code -36).
I get this error for some files, but not all of them. I've tried running BatChmod to reset permissions on all files in my home directory, and then erasing the backup drive and having Time Machine recreate the backup. However I'm still having this problem.
I have also tried restoring the entire hard drive (to a 3rd external HD) by booting from the 10.6 DVD and going through the full-restore process. All of my files are fine when I restore using this method.
Is there something I should do so that I can restore individual files from the backup of my filevault sparsebundle?
Don't try to restore files individually by hand using finder. TM backups are protected by very restrictive ACLs and are not designed to be accessed that way.
you can restore the whole sparse bundle with the home directory from TM interface. you should be logged in as a different user when you do this. the easiest is to be logged in as root so as not to deal with any permissions issues.
another thing you might try is doing it from command line instead of finder. this is also not the designed way but might work where finder copy doesn't.
to do this run the following terminal command after you mount the sparse bundle with backups of the home directory
ditto --noacl path/to/source/file /path/to/target/directory
here path/to/source file is the path to the file in the sparse bundle you want to restore and path/to target directory is the path to the folder where you want to copy it to. an easy way to get the path to an item is to drag that item to the terminal window. make sure that you have all the spaces correctly in the command.
It is extremly inconvenient to have to do a full hard drive restore if all I want is a file or two, and of course if the motherboard on my mini dies and I can't get a close enough replacement computer, then I could really be up a creek.
Thanks,
John F
New York

Change encrypted sparsebindle password

I have an encrypted sparsebundle. I need to change the passphrase. How can I do that?

Since the old one is encrypted, by definition it is secure to delete.
If you want to go the extra mile, here's what you can do:
Empty trash (if there is anything in it).
Move sparsebundle to trash.
In the Finder menubar, select Finder > Secure Empty Trash.
Your trash will very slowly empty, and it will zero out the part of the hard drive where the sparsebundle resided.

Rebuild directory in an encrypted sparsebundle

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