Reading NTSF volumes

Is that true 10.4.11 can read NTSF volumes? In http://en.wikipedia.org/wiki/NTFS I read that 10.3 and later can read (but not write) NTSF volumes but a search for "NTFS" in Mac help produces no entries.
Just double checking before I take the next step in my project.
Thanks,
John Link

Is that true 10.4.11 can read NTSF volumes?
Yes.
(52582)

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Tape label read in volume ?in pool? is not recognised by NETWORKER:I/O err

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Solution for reading NTSF format on Mavericks

This isn't a question but a solution. I searched and worked this issue long enough that I thought some one else might benefit. I migrated my previous job's mac files to a newer mac this summer. That was a switch from Snow Leopard to Mavericks. In the migration I lost my ability to read Windows partitions on my external drives. I had other computers that could, so I didn't sweat it. Today I needed the MacBookPro to read NTSF files and the following link is the solution I found. Happy upgrading!
http://i.vishalagarwal.com/post/30387627819/ntfs-write-on-lion-or-mountain-lion

Thanks, though it's very old news.
That you couldn't read an NTFS drive after upgrading means something is screwed up with your OS X installation. It should always be able to read such a drive with no extra software installed.
While users have still been having success using the older NTFS-3G / MacFUSE drivers, they're outdated. MacFUSE hasn't been updated since 2012 and isn't officially supported in OS X past Snow Leopard. Users should either get Tuxera's newer paid version of their NTFS driver (does not need MacFUSE to operate), or Paragon NTFS. However, you don't need either of these to only read an NTFS drive.

Can Windows no longer read HFS volumes?

Greetings,
I have recently installed Boot Camp and Windows 7 on my new (2012) iMac. So far, so good - no major problems in getting Windows up and running. However, unlike my older Boot Camp installation, this one does not seem to mount, even read-only, any of my Mac volumes. Neither the internal fusion (1 TB) drive or an external 2 TB USB3 drive show up.
Also, possibly related, is that the drives show up in the Boot Camp control panel named "disk 1" and "disk 2" although it does seem to know that OS X is installed on them. I'm guessing that one of those is the Recovery partition.
Did Apple remove support for mounting HFS drives in Windows with newer versions of Boot Camp?
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Ackmo wrote:
I think my original issue (Windows HFS support) is solved,
How did you fix this issue? I am running Windows 7 Professional alongside 10.9 on a MacBook Air. For some reason Windows is not seeing the HFS+ Macintosh HD partition.
I was wondering if Apple stopped including the Windows driver for HFS, but it seems you got it working under 10.8.
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THanks

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Hi Peter,
Thank you for your post.
We will test this issue and let you the result.
Regards,
Devendra

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When asking for help, post your question in the forum. Remember to include your system type, model number and OS. Do not post your serial number.
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help others with the same question in the future.
My TPs: Twist 2HU: i5-3317U Win 8 Pro, 4GB RAM 250GB Samsung 840 | T420 4177CTO: i5-2520M, HD+, Win 7 Pro x64, 8GB RAM, Optimus, 160GB Intel 320 SSD, Intel 6300 WiFi, BT 3.0 | T400 2764CTO: P8700, WXGA, Win 7 Ult x64, AMD 3470, 8GB RAM, 64GB Samsung SSD, BT, Intel 5300 WiFi | A20m 14.1" PIII 500 (retired). Monitors: 2x Dell U2211h IPS 100% sRGB calibrated w/ Spyder3.

Sorry, its a RAID 1 (mirroring). I hit the wrong # when I made the subject. Both drives are available, but I have no way to connect them both to the computer at the same time.
When asking for help, post your question in the forum. Remember to include your system type, model number and OS. Do not post your serial number.
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help others with the same question in the future.
My TPs: Twist 2HU: i5-3317U Win 8 Pro, 4GB RAM 250GB Samsung 840 | T420 4177CTO: i5-2520M, HD+, Win 7 Pro x64, 8GB RAM, Optimus, 160GB Intel 320 SSD, Intel 6300 WiFi, BT 3.0 | T400 2764CTO: P8700, WXGA, Win 7 Ult x64, AMD 3470, 8GB RAM, 64GB Samsung SSD, BT, Intel 5300 WiFi | A20m 14.1" PIII 500 (retired). Monitors: 2x Dell U2211h IPS 100% sRGB calibrated w/ Spyder3.

Avg read time exceeded on data volume

Dear experts,
We are currently running MaxDB 7.7.04.29 on Red Hat Linux 5.1 for our BW instance.
The data and log volumes and SAP binaries are all utilizing NetApp storage, configured on a
single LUN within a single FlexVol running on a single filer. I realize this is not the desired
configuration as both SAP and NetApp recommend separating data, log, and binaries on separate
LUNs. We intend to reconfigure per said recommendation.
That said, do you think this single LUN configuration to be the source of our I/O performance problems?
If not, what other areas should I investigate?
We are getting this error from DBAN.prt, results of the db analyzer:
W2 Avg read time 32.49 ms for 1378 reads on volume /sapdb/BWP/sapdata/DISKD0001
--Erick

> I realize this is not the desired
> configuration as both SAP and NetApp recommend separating data, log, and binaries on separate
> LUNs. We intend to reconfigure per said recommendation.
>
> That said, do you think this single LUN configuration to be the source of our I/O performance problems?
> If not, what other areas should I investigate?
> We are getting this error from DBAN.prt, results of the db analyzer:
>
> * W2 Avg read time 32.49 ms for 1378 reads on volume /sapdb/BWP/sapdata/DISKD0001
Hi there!
From DB point of view, there is no way to tell why the IO performance is bad.
The best the database can do is to tell that it is bad (or good).
Anyhow, the setup you described had been one of the 'usual suspects' for IO issues - so, yes it's quite possible that your IO issues are caused by this.
I'd propose to implement the planned change and check the IO performance again afterwards.
regards,
Lars

Windows 8.0 Volume License machines reboot and windows 8.1 is installed??

We are a small private university with 484 computers running Windows 8.0 with MAK key.
This week we have had 2 Windows 8.0 computers spontaneously upgrade to Windows 8.1.
Since we do have a windows 8.1 MAK key all we had to do was enter the correct key and the computers were fine but everything I am reading about Volume Licensing says that this is not an upgrade path for Windows 8.1.
Is Microsoft pushing out Windows 8.1 slowly to volume licensed computers on Windows 8.0, or is this just some sort of anomaly that may happen occasionally.
One of our operators reported that the usual blue banner prompting upgrade appeared the day before but did not have an option on the banner to deny the upgrade. The next morning when she booted the computer, Windows 8.1 installed and we had to enter
the 8.1 MAK key and all appears to be well.
This is not really a complaint, just that we were VERY surprised when it happened, hoping it was not some sort of hack by a third party.
Jim Smith[REMOVED]
Lubbock Christian University
Technology Services
[removed]

Hi,
I don't know how useful this information will be for that many machines. This was also observed on 8.1 Pro, not Enterprise, but here is what I found while doing multiple different upgrades... just so I could figure out how to stop them...
Windows Update KB2973544 triggers Win 8.1 to automatically install.
http://support.microsoft.com/kb/2973544
In addition, KB3008273 appeared in Nov. 2014, which is also related to the automatic installation of Win 8.1... It actually replaces KB2973544.
http://support.microsoft.com/kb/3008273
Windows Update KB2871389 makes Win 8.1 available in the Store, and is a prerequisite for KB2973544 and\or KB3008273. You might uninstall it also.
https://support.microsoft.com/kb/2871389/en-us
I have found that the installation of KB2973544 and\or KB3008273 create Scheduled Tasks in Task Scheduler under *** Microsoft \ Windows \Setup***
They are...** 8.1 Auto Install Ping** and **8.1 Auto Install V2**. They are scheduled for 8pm Daily.
I clicked on both and selected "RUN", as I didn't want to wait several hours to see what happened... A download started immediately.
After downloading for about an hour, I restarted the machine to see what would happen... The download resumed quickly after the restart.
After the download started again, there were two more Scheduled Tasks added to the same location....   **Windows AutoUpdate Setup Resume Task**... which was running, and
**Windows AutoUpdate Setup Store Resume Task**... which is *Ready*, but has NEVER run.      There was a Service *Modern Setup Host* running in Taskmanager.
***I have found that the only way to stop the installation of Win 8.1 once the Scheculed Task ....   **Windows AutoUpdate Setup Resume Task** is indicating "At Logon" for it's Trigger,
is to end all the tasks showing, starting with that one, and then the ** 8.1 Auto Install Ping** and **8.1 Auto Install V2**.
After Ending the tasks Delete them...
After deleting the Tasks, I had to go to C:\ $Windows.~BT, which is a Hidden File, and delete anything that has a recent date... especially the .esd file (Install.esd) of 2.67GB..
I deleted anything that was newer than one week. You could probably delete everything inside the *Sources*, *Support*, and *Drivers* folders...
Also uninstall the mentioned KB's, starting with the newest, and doing the KB2871389 last, as it requires a reboot.
Any attempt to reboot the machine before doing this results in the installation of Win 8.1 starting...
If you were to End the tasks and disable or delete them while the **Windows AutoUpdate Setup Resume Task** is still showing a
Date and Time for it's trigger, deleting the $Windows.~BT files may not be necessary.
The biggest issue with this process is that you may be denied access to the $Windows.~BT folder. If that is the case, you will need to take Ownership of it.
If you disable and delete the Scheduled Tasks, and uninstall the previously mentioned KB's shortly after selecting *Remind Me Later*
THE FIRST TIME, the process will be stopped, and it won't be necessary to delete anything in the $Windows.~BT folder.
You should have about 24 hours to do this.
After uninstalling the KB's and deleting the scheduled tasks, a new scheduled task has appeared.
It is *Pre-Staged GDR Notification*, and is scheduled to run at *8PM of Every Thursday of Every Week*. My guess was that this is to remind you to install the Win 8.1 Update.
It actually causes another task to be created... *Windows Upgrade Notification Task*... It runs at the *Log On of Any User*
I couldn't get this task to show a notification. The task ran when I did it manually, but generated an error message in the log... *Specified Module Could Not Be Found (0x8007007E) Windows Upgrade Notification*
This is most likely because the KB's have been uninstalled.
I'm sure they can be disabled as well, if you want to stop\prevent the reminders.
I know that once Win 8.1 Update actually installs, those scheduled tasks no longer exist. In fact, the entire SETUP folder disappears.

How can I change the permissions on a read only external HD

I have a WD external HD and I am transferring a file more than 4GB in size. The current partition scheme supported by Ma, being FAT 32, supports only up to 4GB in file transfer size. If I format the external HD on my PC in a NTFS file format it is supposed to handle file transfers bigger than 4GB. Which is true, but it only goes one way, so for example if I am transferring a file from PC to HD to Mac it works just fine, with a few minor hickups, but the other way it does not work at all. So if I want to add anything onto the external HD being hooked up to my Mac, and still being in NTFS format I get a message saying that I do not have sufficient privileges, and under drive info it says that it is read only. Any help on the topic, please.......All the best
Rafcio

Hi Rafcio
I get a message saying that I do not have sufficient privileges, and under drive info it says that it is read only. Any help on the topic, please
Basically, this is not a privileges problem, it is a limitation of the formats. OS X can read NTFS, but not write it. See How to transfer data from a PC to a Macintosh:
Mac OS X 10.3 and 10.4 work with local NTFS-formatted volumes. The volume will be read-only.
… and Boot Camp 2.0, Mac OS X 10.5: Frequently asked questions:
Mac OS X can read and write FAT volumes, but only read NTFS volumes.

" the volume for (file name) cannot be found. Insert the disk or connect to the server volume and wait for it to appear on the desktop, then try again."

I get an error message in iPhoto when I click on thumbnails of pictures in certain albums. It reads 'the volume for "(file name)" cannot be found. Insert the disk or connect to the server volume and wait for it to appear on the desktop, then try again.' What does this mean and how do I fix it?

It means that you imported the files in Referenced mode and have now remvoed them from the Mac. Put the disk or card back.
For more on iPhoto and file management see this User Tip:
https://discussions.apple.com/docs/DOC-6361

Install arch on a read-only filesystem

Hi to all, I have an idea about installing arch in a particular way, a way that makes the system more secure.
I want to install a host archlinux system on a hard disk or ssd but I want no data can be written to the storage. The host system will have a predefined set of programs and should use a ramdisk to store temporary data. It is something very similar to a ISO.
The real computation will be handled through a series of virtualbox instances of linux ( the virtualbox images will be stored on an external hard disk, a read/write volume ).
How could I achieve this? Through unionfs? AUFS? or some other thing?
Last edited by pabloski (2011-02-16 16:18:11)

I want to mount my sda2 read-only and union it with a tmpfs, so the machine is secure and the file system is the same every boot.
I installed aufs3 with 3.2.6-1-aufs_friendly, I made a hook (as some-guy94 adviced), but it doesn't work.
The code is:
1. mkdir -p /root/ro /root/rw
2. mount /dev/sda2 /root/ro
3. mount -t tmpfs root.rw /root/rw
4. mount -t aufs -o "dirs=/root/rw=rw:/root/ro=ro" root.union /
At 2. it says: "mount: mounting /dev/sda2 on /root/ro failed: No such file or directory" Both files exist - I can list them just before the mount.
3. & 4. work, but it doesn't matter as sda2 gets mounted rw on / right after (by initramfs's init, I gues).
Can you help me with this, or point some useful howtos?
Btw: is there a better way of debugging a hook, other than making the image and rebooting each change?
Update: This is how they did it in larch: http://git.berlios.de/cgi-bin/gitweb.cg … cpio/hooks
mount -t ext3 /dev/sda2 /root/ro works now.
I used exec /sbin/switch_root as in larch3 hook and for loop from /lib/initcpio/init:109 to move /proc /dev /sys /run to the new root
So the union mount works just fine now, my sda2/sbin/init & sda2/etc/rc.sysinit run, but the latter fails with following:
* Mounting Root Read-Only - this is actually quite acceptable
* Starting UDev Daemon
* Loading Modules
* Remounting Root Read/Write - acceptable as well
After boot X opens and system freezes immediately (no reaction to keyboard, doesn't ping). No useful information in logs. I don't think system can run well without udev/modules. So this is udev not liking / mounted rw (as tmpfs is rw) or maybe /dev /proc /sys /run fault.
I tried to make union mount only in rc.sysinit when /dev/sda2 is already mounted on /, but mount --move / other-dir fails.
Any ideas what can be wrong?
My code:
run_hook ()
read -p "Union mount root (y/N)? " answer
if [[ "$answer" == "y" ]]; then
modprobe aufs
ro="/root/ro"
rw="/root/rw"
un="/root/un"
rob="${un}/ro"
rwb="${un}/rw"
mkdir -p $ro $rw $un
mount -t ext3 /dev/sda2 $ro
mount -t tmpfs -o "size=20%" root.rw $rw
mount -t aufs -o "dirs=${rw}=rw:${ro}=ro" root.union $un
mkdir -p $rob $rwb
mount --bind $ro $rob
mount --bind $rw $rwb
mkdir ${un}/media
mkdir ${un}/sys
mkdir ${un}/proc
mkdir ${un}/dev
/bin/mknod ${un}/dev/console c 5 1
echo "rootfs / rootfs rw 0 0" >${un}/etc/mtab
[ -z "${init}" ] && init="/sbin/init"
if [ -e "${un}/${init}" ]; then
mount
read
for d in proc sys dev run; do
if [ -d ${un}/${d} ]; then
mount --move /${d} ${un}/${d}
else
umount /${d}
fi
done
exec /sbin/switch_root -c /dev/console ${un} ${init} ${CMDLINE}
fi
fi
Last edited by kaos (2012-02-22 17:14:18)

Explanation / use of read-only zoning feaure on MDS products

Does anyone know if the MDS product line will work in this way when licensed with the Enterprise option for the read-only zoning?
I am trying to come up with a solution to provide real-time access to database files for a 2nd server that facilitates reporting applications. If I have LUNs that contain my primary database data and log volumes mapped to one server and create a 2nd read-only zone containing those LUNs, can I map those LUNs to a 2nd server as a kind of virtual/snapshot type instance?
I know that this will throw some odd things at the application side as it may or may not recognize the LUNs at read-only and could store things in temp tables or memory that would be cached and not actual current data but we've dealt with that in our reporting applications in the past utilizing snapshot technology on our storage platform. The downside to using that is in updating the snapshot to more recent copies, you have to at least offline the database to create a new snapshot with the same name/location which introduces interruptions, timeouts, etc.
Any feedback on how the read-only zoning feature is supposed to perform this type of functionality and/or real-world examples of how you are using it would be appreciated.
Thank you,
Justin Loucks

I guess I'm not sure how to read some of this when it references different versions of SAN-OS code and Operating system levels. For instance, in the documenation for SAN-OS 3.0, I found the following:
Read-only volumes are not supported by some operating system and file system combinations (for example, Windows NT or Windows 2000 and NTFS file system). Volumes within read-only zones are not available to such hosts. However, if these hosts are already booted when the read-only zones are activated, then read-only volumes are available to those hosts.
From -- http://www.cisco.com/en/US/products/ps5989/products_configuration_guide_chapter09186a0080662d35.html#wp1136509
Does this mean that as long as it is not my OS boot volume it may work? Also, it references NT and 2000 but not Windows 2003. Perhaps that is something that works differently now. I guess I'll open a case with MS on that to see what they say.
If anyone has already tried this or knows differently, please let me know. I just want to make sure I've exhausted all options here before I resort to Log shipping or some other software based solution.

Reading NTSF volumes

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