How to prepaire an USB disk with OSX to work with ext2?

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How to prepaire an USB disk with OSX to work with ext2?

Postby DBakker » Thu Oct 29, 2009 2:41 pm

Hi,

I want to use ext2 on an USB backup disk with my ReadyNAS.
When I mount my USB disk to the ReadyNAS i see two partitions.
Both with FAT32. (one 198 mb, second 499 gig)

How can I format the biggest one with ext2 but it won't format at all.
What's going wrong? (There's also no green light and name in front of this partition like the first one)

Douwe-Jan
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Re: How to prepaire an USB disk with OSX to work with ext2?

Postby Chewbacca » Thu Oct 29, 2009 6:06 pm

What error message are you receiving?

It would be best to have the drive as 1 partition.
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Re: How to prepaire an USB disk with OSX to work with ext2?

Postby DBakker » Fri Oct 30, 2009 3:54 am

No message, the biggest wouldn't format at all.
But now after several ours I managed it.
The USB disk has now only one partition as ext2 (ext3).
Thanx for your help.

Douwe-Jan
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Re: How to prepaire an USB disk with OSX to work with ext2?

Postby skaven » Tue Nov 17, 2009 3:41 am

Hello!

How did you fix it?

Have exatly the same problem.

Have an seagate freeagent desktop 500GIG, have turned of the "sleep" function, have formatet it as NTFS on my old PC.

But it shows up on the NAS as 2 volumes, one smal (195MB), and one large (493GIG) and I have not succesefully formatet it to ext3, it just "refreshes" every 5 secs.....

Tommy
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Re: How to prepaire an USB disk with OSX to work with ext2?

Postby Chewbacca » Tue Nov 17, 2009 5:09 pm

skaven

You might want to make sure the drive doesnt have more then one partition on it. On a mac you can use Disk Utility and on windows you can use disk management.
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Re: How to prepaire an USB disk with OSX to work with ext2?

Postby BigBearf » Tue Nov 17, 2009 7:53 pm

I have an attached LaCie 500 GB hard drive partitioned in half. One partition as FAT and the other as EXT3. No problems and I can access both by hooking up to MBP via USB or FW800.

USB Storage Devices
The following USB storage devices are connected.
Device Part Description Used Size FS Speed
1 LaCie Rugged FW/USB [Partition 1] 455 MB 231 GB EXT3 480
2 LaCie Rugged FW/USB [Partition 2] 67 GB 232 GB FAT 480


Hope this helps.
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Product#1: ReadyNAS Pro 6-4 GB from NASHQ.com (2 GB X2 Modules) 3968 MB [4-5-5-18 DDR2]
RAIDiator Version: RAIDiator-x86 Version: 4.2.26
RAID Info: RAID Level X-RAID2, 6 disks
Hard Disk Brand, Model & Capacity: Western Digital Two-WD20EADS-00R6B0 TLER ON & WDIDLE /D
Hard Disk Brand, Model & Capacity: Western Digital Four-WD2003FYYS
ReadyNAS Security Mode: User
No. Hard Disk currently installed: 6
USB Drive Attached: LaCie Rugged Hard Disk FireWire 400 & 800 | Hi-Speed USB 2.0 500GB formatted EXT3
Product# 2 ReadyNAS 51600
RAIDiator Version: RAIDiator Version: 6.1.8
RAID Info: RAID Level X-RAID2, 5 disks
Hard disks Western Digital SE 4 TB drives x5
USB Drive Attached: Western Digital My Passport | Hi-Speed USB 3.0 2TB formatted NTFS
Network Router/Switch Info: Airport Extreme Dual Channel, Netgear GS608 Gigabit Switches X4, Apple Time Capsule 1 TB Dual Channel and Time Capsule 3 TB
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Computers:MBPx3 using Mavericks 10.9.x, iMac using Mavericks 10.9.x, OLD Windoze XP Dell, Mac Mini Server as HTPC using Plex and Harmony 900 Remote and Monoprice HDMI adapter. Apple TV 1G and Apple TV 2Gx2 jail broken and using Plex Client , iPhone 5x3, iPhone4x1 and iPad Airs that I use as remotes to Plex and Apple TV. The iPad 3 and Airs recently used as remote to ATV2 and streaming from RNPP.
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Re: How to prepaire an USB disk with OSX to work with ext2?

Postby skaven » Wed Nov 18, 2009 2:15 am

Hello.

Thanx for fast reply.

In both mac SL and win XP the drive shows up as one partition....

Have reformated it on the XP as a singel partition as NTFS, did not use "Quickformat" but the slow one, took 1 hour to format.

Still, it shows up as 2 partitions on my duo....

Is there a good "disk utility" for XP or Mac that insures that the drive is in one partition?

If it shows up on a mac / pc as one, could there be 2 partitions?

Tommy
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Re: How to prepaire an USB disk with OSX to work with ext2?

Postby BigBearf » Wed Nov 18, 2009 5:05 pm

I would use Disk Utility under Utilities in Apps folder under Snow Leopard and attach the USB drive to the mac and format the drive in 2 partitions both as FAT partitions.
Next I would attach the USB drive to the front USB port on the ReadyNAS. The front light should flash amber and then remain solid amber. You should be able to go to Frontview>Volumes>USB Storage and see the drive. It should show up as something like this.

USB Storage Devices
The following USB storage devices are connected.
Device Part Description Used Size FS Speed
1 LaCie Rugged FW/USB [Partition 1] 455 MB 231 GB FAT 480
2 LaCie Rugged FW/USB [Partition 2] 67 GB 232 GB FAT 480


Under the drop down "Options" box to the far right is a "format EXT3" options. Choose that option for one of the partitions and select "Go" and the ReadyNAS with format the drive as EXT3. It should then look something like this.

USB Storage Devices
The following USB storage devices are connected.
Device Part Description Used Size FS Speed
1 LaCie Rugged FW/USB [Partition 1] 455 MB 231 GB EXT3 480
2 LaCie Rugged FW/USB [Partition 2] 67 GB 232 GB FAT 480


If your setup is like mine then you should be able to go to Shares>Shares on USB Storage and enable Read & Write for CIFS & AFP and then be able to mount your USB shares using the Command-K combo previously described.

BigBearf
Product#1: ReadyNAS Pro 6-4 GB from NASHQ.com (2 GB X2 Modules) 3968 MB [4-5-5-18 DDR2]
RAIDiator Version: RAIDiator-x86 Version: 4.2.26
RAID Info: RAID Level X-RAID2, 6 disks
Hard Disk Brand, Model & Capacity: Western Digital Two-WD20EADS-00R6B0 TLER ON & WDIDLE /D
Hard Disk Brand, Model & Capacity: Western Digital Four-WD2003FYYS
ReadyNAS Security Mode: User
No. Hard Disk currently installed: 6
USB Drive Attached: LaCie Rugged Hard Disk FireWire 400 & 800 | Hi-Speed USB 2.0 500GB formatted EXT3
Product# 2 ReadyNAS 51600
RAIDiator Version: RAIDiator Version: 6.1.8
RAID Info: RAID Level X-RAID2, 5 disks
Hard disks Western Digital SE 4 TB drives x5
USB Drive Attached: Western Digital My Passport | Hi-Speed USB 3.0 2TB formatted NTFS
Network Router/Switch Info: Airport Extreme Dual Channel, Netgear GS608 Gigabit Switches X4, Apple Time Capsule 1 TB Dual Channel and Time Capsule 3 TB
UPS: APC Back-UPS RS 1500 LCD
Computers:MBPx3 using Mavericks 10.9.x, iMac using Mavericks 10.9.x, OLD Windoze XP Dell, Mac Mini Server as HTPC using Plex and Harmony 900 Remote and Monoprice HDMI adapter. Apple TV 1G and Apple TV 2Gx2 jail broken and using Plex Client , iPhone 5x3, iPhone4x1 and iPad Airs that I use as remotes to Plex and Apple TV. The iPad 3 and Airs recently used as remote to ATV2 and streaming from RNPP.
Direct TV HR2xs
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Re: How to prepaire an USB disk with OSX to work with ext2?

Postby page3 » Thu Nov 19, 2009 2:02 am

BigBearf - informative post, thanks.

What would be the advantage of having a FAT and ext2 partition, as opposed to simply one ext2 partition?
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Re: How to prepaire an USB disk with OSX to work with ext2?

Postby melmaninga » Sun Aug 01, 2010 1:09 pm

I know the thread is over 6 months old, but I figured I would post for someone with a similar problem. I found the path to a solution with 10.6. Pretty simple, but easily overlooked. Format the drive into 1 partition using Disk Utility as previously described, just be sure to choose the option of using a MBR partitioning scheme. Option button located underneath the partition map.

I also installed Macfuse and the plugin for reading ext2/3 filesystems on a Mac.

http://code.google.com/p/macfuse/
http://transact.dl.sourceforge.net/project/fuse-ext2/fuse-ext2/fuse-ext2-0.0.7/fuse-ext2-0.0.7.dmg

Figured if I am going to back-up, I might as well be able to read the back-up somewhere else. Now I can plug my drive directly into my Mac to read, when required.
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Re: How to prepaire an USB disk with OSX to work with ext2?

Postby mdeh » Sat Jan 01, 2011 10:42 am

I too know that it has been some months on this thread, but for the novices like me, who have to deal with a "GPT protected" partition, here is a link that resolves this. ( This showed up in my ReadyNas as 2 partitions on my USB disk)
Troubleshooting GPT Protective Partition Issues: http://seagate.custkb.com/seagate/crm/s ... cId=207837
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