Filesystem ext2/ext3 at Mac OS X

Hi together,
how can i mount a partition with an ext2/ext3 filesystem ?
Thank you and best regards
oelauge

Try using this tool.
(14329)

Similar Messages

Filesystems benchmarked: EXT3 vs EXT4 vs XFS vs BTRFS

I wondered across this fine artical this morning, and thought I would share it with the community.
Quote:
Let's start from the most obvious: the best balanced filesystem seems to be the mature, almost aging EXT3. This is natural, as it received most cumulative improvements over a long period of time. It has very good sequential and random write speeds and reasonable read speed, factors that are of utmost importance on several different tasks. For example, if you plan to run a database server you are almost forced to use EXT3, as all other filesystems seems to have big problems with synchronized random write speed. Also, you can't go wrong with EXT3 if you use it on your workstation as its performances are quite good in a great amount of different jobs. Finally, EXT3 is more stable than the others FS as most of its bug are by now already worked out.
However, this not means that EXT3 is the perfect FS: first, it that lacks some important features as delayed allocation and online compression. It lacks native snapshots capability also but you can use LVM to overcome this. It is more fragmentation-prone that EXT4 and XFS and it is very slow in creating/deleting large amount of files, denoting a not-so-good metadata handling. Moreover, it use more CPU cycles than EXT4 and XFS, but with todays CPU I don't think that this is a great problem. If you can live with these minor faults, EXT3 is the right filesystem for you.
Please don't just read that one paragraph though, they have ten pages worth of detailed and varied benchmarks they used to form that opinion. And the artical is dated from the middle of last month, nice and recent
Interesting stuff, I thought that ext4 would do better (not that it did poorly, but relative to ext3) And that btrfs wouldnt be as slow as it currently seems, though as the tester commented, it's a very new filesystem. Maybe Arch should ship btrfs as an install option? Help these guys iron out the bugs!

fukawi2 wrote:
Misfit138 wrote: Dodge RAM 2500 Cummins Turbodiesel FTW.
F650 FTW
Well if you go there, then I have to pull out my Chevy Kodiak Pickup.
Last edited by Misfit138 (2010-12-04 02:13:59)

Partitioning question [Resolved]

I hope this is a simple/silly question, But I'm running into some issues partitioning my drive for dual boot with Windows 7. Unfortunately, my new job requires me to use Windows so I've decided to go down the dual boot option rather than using virtualbox (due to system requirements of some of the software packages i'll be using). But anyways,
Here is what I did, in chronological order.
1. Installed Windows 7 on /dev/sda1/
2. Loaded Arch Linux Live CD (2010.05)
3. Booted to the Live CD, and began /arch/setup
4. Loaded ethernet, set the date and time, selected packages
5. Ran cfdisk using the "Manually Partition Hard Drives" option such that the cfdisk configuration looks as follows:
Name Flags Part Type FS Type [Label] Size (MB)
sda1 BOOT Primary Hidden HPFS/NTFS 435580.7*
sda2 Primary Linux 98.71*
sda3 Primary Linux 149996.21*
sda4 Primary Linux 164478.29*
The plan is to use sda2 for /boot, sda3 for /, and sda4 for /home and not use swap (I shouldn't need it).
After using cfdisk to create the new partitions, and select the FS type, as outlined in the Beginners guide, I proceeded to Step 3 of Hard drive preparation, "Manually Configure Block Devics, filesystems and mountpoints".
My understanding is that now that I've created the partitions, I must specify which partition will be /boot, /, /home, etc.
However, when I select this option, I get the following output:
I've detected you already have blockdevice definitions in place: /dev/sda raw no_label no_fs /dev/sda1 raw no_label no_fs /dev/sda2 raw no_label no_fs /dev/sda3 raw no_label no_fs /dev/sda4 raw no_label no_fs /dev/sdb raw no_label no_fs /dev/sdb1 raw no_label no_fs
Do you want to use these as a starting point? Make sure your disk(s) are partitioned correctly so your definitions can be applied on the disk. Pick 'no' when in doubt to start from scratch.
Assuming that I did partition them correctly, I selected yes to proceed. I select Partition Access Method as dev (directly by /dev/*) at which point I'm brought directly to "Manage filesystems which looks as shown below:
/dev/sda raw->no_fs
/dev/sda1 raw->no_fs
/dev/sda2 raw->no_fs
/dev/sda3 raw->no_fs
/dev/sda4 raw->no_fs
/dev/sdb raw->no_fs
/dev/sdb1 raw->no_fs
DONE _
If I select, say, /dev/sda2, which will be the /boot partition, I'm given the following message:
Do you want to have this filesystem (re)created ? If not, make sure there already is a filesystem!
I opened up a new terminal, ran fdisk -l and saw that there was indeed a /dev/sda2 which indeed is partitioned as 83, or ext3. So I hit yes. And then I get this:
Automatically picked the filesystem. It's the only option for blockdevices
At which point I can select /boot, but then nothing happens. I'm then returned to the manage filesystems page which looks exactly as it did above.
Basically my question for you guys is, what am I doing wrong? It seems to me like cfdisk is making the partitions correctly but the installer isnt able to give the partitions labels for some reason. I also tried opening a terminal and making the partitions manually via mkfs -t ext3 but that yielded the same issue as above.
Any suggestions are much appreciated. Happy Holidays.
Last edited by eldubsports (2010-12-23 23:56:48)

If I select, say, /dev/sda2, which will be the /boot partition, I'm given the following message:
Do you want to have this filesystem (re)created ? If not, make sure there already is a filesystem!
I opened up a new terminal, ran fdisk -l and saw that there was indeed a /dev/sda2 which indeed is partitioned as 83
say yes to the filesystem (re)created ...
cfdisk only creates the patition
after which you tell it the mount point & filesystem (ext2, ext3,reiser or whatever)
you dont need to manually configure block devices unless your really sure of what your doing

GRUB2 doesn't boot from HFS+ partition

Hi,
I formatted my boot partition as HFS+. Now, GRUB2 won't boot anymore, it says "unknown filesystem" and drops me to a rescue shell. From there, I have tried running insmod with all kinds of filesystems (ext2, ext3, ext4, vfat, hfsplus, ...) and ext2 is the filesystem for which I do not get the "unknown filesystem" error.
How can I fix this? I have already added "insmod hfsplus" to my grub.cfg entries, but the problem obviously lies elsewhere.
Thanks!
(Btw, the entire setup was working correctly when my boot partition was formatted as ext2. When I changed the fs to HFS+, I just copied all files from /boot, did mkfs.hfsplus on the partition and copied the files back. Could this be a reason for this problem?)
Last edited by MrAllan (2012-08-05 21:34:36)

Actually, hfs+ is specifically cited in GRUB2's manual as a supported filesystem and a quick search indicates that people do successfully boot Linux from an hfs+ /boot using GRUB2.
I can't help solve your problem, though
Last edited by ZekeSulastin (2012-08-08 16:27:32)

Determine filesystem type - EXT2, FAT32, NTFS, or other

Is it possible to determine file system type (EXT2, EXT3, FAT32, NTFS or other types) of the host media hard drive/USB key in Java?
Best Regards,
Karthigan.

[email protected] wrote:
I wrote a back up application. It works great if I am backing up data from NTFS to NTFS or FAT32 or FAT32 - basically across same filesystem types. If I run the same backup application from NTFS to FAT32 media, files that need not be copied over get copied over unnecessarily - because the timestamp accuracy/format of NTFS is different from FAT32. It just is not very appealing if files get copied over for no reason due to timestamp variation across filesystems. I was hoping to see if there was a way around it. The trick in this case might be to create a file on the target volume, set its last-changed date to a certain value, then read back its last-changed date and see whether you get back what you consider to be a date lacking in accuracy. Then instead of comparing an accurate date to an inaccurate date, and doing unnecessary work, you could apply some kind of algorithm to the accurate date to apply the inaccuracy before comparing the two dates. Or something like that.

Move a big file from a mac system to a windows 8 laptop usb usb flash drive

Hello i am using a 32 gb flash drive to copy a 10gb file from mac os x to my flash drive. Then i want to insert that flash drive to my windows 8 pc and store it there.
I cant use a network connection to transfer files because i dont have a ethernet cable or an network connection yet. So i must use a smart procedure for making my mac communicate with my pc at home. I cant use any other types of sharing methods except for a usb flash drive. So i know that the mac cannot detect NTFS filesystems and i cant use FAT32 even though mac recognizes it because FAT 32 is unable to store large files abotu 10GB of size. Now i have to use i think ext3 or ext4 or also HFS but when i successfully copy the file from mac to flash drive then insert it into my pc, the windows 8 OS will not detect the windows pc because i dont think windows is made to detect these filesystems by default.
So i have tried using, HFS explorer and ext2/ext3/ext4 volume manager and ext2exploer or GPARTED live cd's latest version's copy and paste functions but they seem to not work propely and there is a problem, i cannot see any flash drive in HFS explorer even though my drive is formatted as hfs.
So i need a program that can detect HFS or ext3/4 formatted flash drives and is able to copy a file from there straight to my windows 8 NTFS hard drive or a folder in it.
I have checked my firewall settings and defense settings. I am the administrator of my pc and i have even removed the windows password and the mac one but still i get lots of issus JUST to copy a file between a pc and a mac. Remmember that i have to copy files FROM a mac system running snow leopard to my windows 8 pc not the OTHER WAY were i have to copy from the windows to a mac.
Please tell me as much as possable about software out there and tell me software that costs money. I am able to buy any good software for doing this.
Thanks in advance.
raghav

Take the flash drive to the PC and format it as exFAT.
(95473)

Is it possible to format an external USB drive with XFS or EXT3 ?

Greetings all.
I am running a 2,8Ghz 8x core with 6Gb ram. I have a NAS, (Buffalo Pro Duo Linkstation) which has a built in linux which saves data using XFS (I think). It has a built in backup routine, but the drive it backs up to MUST be in XFS or EXT3 (Fat 32 works but it drops all files over 2GB ;( ... ) So - here's my question:
How can I format the external USB drive (A seagate freeagent) in XFS or EXT3 so that it can run on my Buffalo? My preference is to use a GUI mac program (does one exist?) or to use a command line UNIX command (FSK? - but then, how????). I could also use (GASP!) a windows utility on parallels, or even install a linux distro via parallels. But it should be easy I hope...
Looking forward to any ideas/thoughts, tips, etc.
thanks and best to all from Berlin,
Jason

Download a "Live CD" (one you can boot of into running copy of Linux without having to install anything; for example, [OpenSUSE Live CD|http://download.opensuse.org/distribution/11.0/iso/cd/openSUSE-11.0-GNOME-Li veCD-x86_64.iso]).
Use OS X' Disk Utility to burn it to a CD.
Insert the CD you just burned (if it ejected afterwards), and then restart your Mac.
Hold down the 'C' key on the keyboard as the Mac boots, and it should switch to booting off the CD. Once the CD starts loading, you can let go. It will take a couple of minutes, but it will eventually boot into Linux.
Attach your USB drive.
Run gparted (you need to search the menus for it, it's under system administration, I think -- or you can open up a terminal window and simply type 'gparted').
Find your disk (/dev/sdb or /dev/sda) and partition and format it using the filesystem you want.
When done, restart the computer. You'll boot back into Mac OS X and have an EXT2/EXT3/XFS formatted external drive (that OS X won't recognize, by the way).

What types of filesystems can Tiger read/write to?

I'm trying to partition my iBook g4's hardrive to run both OSX and Ubuntu GNU/Linux (colloquially: Linux) and don't know what filesystems Tiger can read/write to, so I can share large files (eg: photos, movies, etc.) between the two partions. The options Ubuntu gives me for filesystems on its partition are: ext2, ext3, fat16, fat32, hfs, linux-swap, xfs, devfs and jfs. Also to note is that I plan of having this partioon's size at 37 GBs. Thanks!

You have the following options depending upon how the drive is partitioned:
OS X can read/write Mac OS Extended and OS Extended (Journaled), MSDOS FAT16 or FAT32, and Unix File System. You should not install OS X or OS 9 in a UFS partition. UFS partitions can be created by Disk Utility.

Ext2 redux

https://bugs.archlinux.org/task/31568
"The ext4 supports ext2/ext3 FS so no need to activate the old modules."
Yes. So why won't Arch mount ext2 without help? Legacy fstab files across the universe say 'ext2' or 'auto' - so for end users, Arch just breaks.
mount -t ext2 ... should work
mount -t auto ... should work for ext2 like everything else
ext2 in fstab should work
What happens instead: Arch reports it doesn't know any such thing as an ext2 filesystem.
Me, I don't care how ext2 support is accomplished, but Arch should supply it, not end users. Unless a sysadmin hip to obscure ext4 capability details is on call, then what an end user sees is a very standard Linux fs which won't mount, so Arch seems crudware.
Make Arch use ext4 for ext2 fs behind the scenes. Don't bomb over an ACCURATE fstab that says ext2. Right now, Arch reports ext2 as an unknown filesystem.
Needless breakage gives Arch a false public image of instability. Old ext2 is too important to write off. By the way, even Tso himself wishes to dump ext4 for btrfs. Today's "cool" is tomorrow's "has been." And ext2 doesn't the carry patent problems of FAT, which can affect its appearance in commercial settings. Biz people care little about fs quality, but much about time to market, embedded memory constraints, and breadth of os / tool support. We'd all like to see FAT disappear, but it's running on half the devices in your home, I wager. And hilariously enough, FAT is the single most cross-platform capable fs between the 3 big OS platforms (Mac/Win/Linux). Such is life. Of all the non-MS, Linux filesystems, the one with the most Win/Mac support is ext2.
P.S. I hope the netiquette is ok? It seemed more reasonable to post than reopen a ticket. The bug board needs some way to folloup closed items. Anyway, thanks to all for giving a hearing. I still of course consider Arch the best *nix distro bar none. Just trying to help the cause here!

(jasonwryan, calm. Netiquette meant whether to reopen, not speak. Arch is touchy even flattered. If I scored unsettling points, well, ahem....I've sysadminned for donkey's years. The ticket desk won't allow followups and I was trying to be good by not reopening.)
To those who asked,
Linux <hostname> 3.5.3-1-ARCH #1 SMP PREEMPT <timedate> x86_64 GNU/Linux
failed on a udev hotswapped ext2 USB drive
mount -t ext2 ...
with message that ext2 is an unknown filesystem.
The same ext2 booted another box fine. I wasn't saying everything about ext2 is broken, but that Arch should never report ext2 as unknown filesystem. Both 'ext2' and 'auto' tags should 'just work' in all possible usages (fstab, manual console mount, DE auto-mount, whatever).
If I have some weird config causing a message others don't see (very possible, I just didn't think of it that way after ticket closure), then I would like to learn what. The sys is well maintained and standard. Stock Arch kernels all the way. If Arch devs never intended such a message to appear, then I may have found a bug and need to file a report. It may need some backtrack, as I already reformatted to UN-journaled ext4 just to use the device with Arch boxes.
Thanks all!

USB flash drive 5times faster with ntfs filesystem?

Hello,
I have a weird problem with my USB Voyager GT 16GB flash drive. I formated it in ext2/ext3/xfs/fat32 and then start copying a file >1GB in size. The speed of transfer very quickly drops to 2-4MB/s. That is very slow. And if I format it in ntfs it works as it should be 16-17MB/s in linux with ntfs-3g. I really don't get it. I've been playing with all sort of options all day and is driving me nuts Tried even another kernel with BFS and BFQ I/O sheduler kernel26-ck and the problem is identical. Tried turning of legacy support in BIOS for USB and nothing, the problem is still here. Mount it it with "async" option which gave me speed of 800KB/s... Is it possible that Voyager GT 16GB doesn't work good with any other filesystem? Or maybe I'm missing something... Clearly it isn't problem with usb 2.0 ports because all of them are 2.0 and the ntfs speed wouldn't be that good if the flash was working in usb 1.1 mode. Any thought would be much welcome
Thanks in advance,
Clouseau
Last edited by Clouseau (2010-12-24 02:42:06)

I'm seriously thinkg to toss computer out throught the windows cause this problem is driving me insance. I'm loosing hours every day on constat reformatting of my USB drive. In windows no problem, but in linux, it drives me crazy! Slow! Slow! Slow! Its the same on another computer... The problem must be in schedulers, i've tried them all. I'm now on the latest kernel and it's still driving me nuts...
USB Hard disk have lesser problems than this stick... But in windows everything is fine with the stick...
And also when I copy all system slows down, it becomes unresponsive...
I'm on x64 Arch with KDE4, and my system is up to date. The problem is here for couple of years and I'm thinking really to switch back to windows cause I cannot use my computer for basic things... I mean I do not need it for Adobe Premier Pro, but I would like to transfer couple of mkv files now and then I don't want to loose two hours every time I wan't to do that... Damn, I'm mad
This is my cat /proc/interrupts. The rescheduling interrupts are very high.
CPU0 CPU1 CPU2 CPU3
0: 348 0 0 0 IO-APIC-edge timer
1: 82420 0 0 0 IO-APIC-edge i8042
8: 1 0 0 0 IO-APIC-edge rtc0
9: 0 0 0 0 IO-APIC-fasteoi acpi
12: 4 0 0 0 IO-APIC-edge i8042
16: 768552 0 0 0 IO-APIC-fasteoi mei, ehci_hcd:usb1
17: 171 0 0 0 IO-APIC-fasteoi hda_intel
18: 0 0 0 0 IO-APIC-fasteoi ata_generic
23: 16242602 0 0 0 IO-APIC-fasteoi ehci_hcd:usb2
40: 0 0 0 0 PCI-MSI-edge PCIe PME
41: 0 0 0 0 PCI-MSI-edge PCIe PME
42: 0 0 0 0 PCI-MSI-edge PCIe PME
43: 0 0 0 0 PCI-MSI-edge PCIe PME
44: 0 0 0 0 PCI-MSI-edge PCIe PME
45: 4636694 0 0 0 PCI-MSI-edge ahci
46: 65645608 0 0 0 PCI-MSI-edge eth0
47: 5047842 0 0 0 PCI-MSI-edge hda_intel
48: 6234037 0 0 0 PCI-MSI-edge nvidia
NMI: 10780 7413 3864 2774 Non-maskable interrupts
LOC: 28950146 27310427 27977434 15954004 Local timer interrupts
SPU: 0 0 0 0 Spurious interrupts
PMI: 10780 7413 3864 2774 Performance monitoring interrupts
IWI: 0 0 0 0 IRQ work interrupts
RES: 27411973 44067980 37191358 46027973 Rescheduling interrupts
CAL: 236457 357518 433390 486080 Function call interrupts
TLB: 410269 343394 159266 107912 TLB shootdowns
TRM: 0 0 0 0 Thermal event interrupts
THR: 0 0 0 0 Threshold APIC interrupts
MCE: 0 0 0 0 Machine check exceptions
MCP: 303 303 303 303 Machine check polls

CentOS based linux VM running on Hyper-v : Checking root filesystem fails when kernel switches having old PV(para virtualised driver based on 2.6.32 linux kernel) to new PV(which is equivalent to linux integration component 3.4)

hi all,
I am running a CentOS base VM on top of Hyper-V server. I upgraded PV drivers of Hyper-V in linux kernel 2.6.32 in order to support
Windows Server 2012, then i am hitting below issue on Windows Server 2008 when kernel switches from old PV(which is 2.6.32 based) to new PV(which is equivalent to linux integration component 3.4).i
am hitting following filesystem check error messages :
Setting hostname hostname:
Checking root filesystem
fsck.ext3/dev/hda2:
The superblock could not be read or does not describe correct ext2 filesystem. If the device is valid and it really contains an ext2
filesystem(and not swap or ufs or something else),then the superblock is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>
: No such file or directory while trying to open /dev/hda2
*** An error occurred during the filesystem check.
*** Dropping you to a shell; the system will reboot
*** When you leave the shell.
Also, when I go to the repair filesystem mode. I found out the strange behaviour when i ran those command :
(Repair filesytem) 1 # mount
/dev/hda2 on / type ext3 (rw)
proc on /proc type proc (rw)
(Repair filesystem) 1# cat /etc/mtab
/dev/hda2 /ext3 rw 0 0
proc /proc proc rw 0 0
(Repair filesystem) 1# df
Filesystem 1K-blocks used Available Use% Mountedon
/dev/hda2 4%
I think for all above command there should be /dev/sda2 instead of /dev/hda2.
Also my fstab , and fdisk -l looks like ok for me.
(Repair filesystem) 1# cat /etc/fstab
LABEL=/ / ext3 defaults 1 1
LABEL=/boot /boot ext3 defaults 1 2
devpts /dev/pts devpts gid=5,mode=620 0 0
tmpfs /dev/shm tmpfs defaults 0 0
proc /proc proc defaults 0 0
sysfs /sys sysfs defaults 0 0
LABEL=swap-xvda3 swap swap defults 0 0
(Repair filesystem) 1# fdisk -l
Device Boot Start End Block Id System
/dev/sda1 * 1 49 98535 83 Linux
Partition 1 does not end with cylinder boundary.
/dev/sda2 49 19197 39062500 83 Linux
Partition 2 does not end with cylinder boundary.
/dev/sda3 ......
Partition 3 does not ......
/dev/sda4 ......
Partition 4 does not end ....
(Repair filesystem) 1# e2label /dev/sda1
/boot
(Repair filesystem) 1# e2label /dev/sda2
(Repair fielsystem) 1# ls /dev/sd*
/dev/sda /dev/sda1 /dev/sda2 /dev/sda3 /dev/sda4
(Repair filesyatem) 1# ls /dev/hd*
ls: /dev/hd*: No such file or directory
Kindly suggest any configuration of windows server or kernel configs missing or how to resolve this issues
Many many thanks for your reply.
thanks & Regards,
Ujjwal

i am not able to understand duplicate UUID and from where it is picking /dev/hda* ?
~
VVM:>>
VVM:>> Output of dmesg | grep ata contain substring "Hyper-V" ?
VVM:>>
it doesn't contain "Hyper-V" or ata related message and the output doesn't change with boot parameter reserve=0x1f0, 0x8
~~
~~~~
==
output of dmesg related "ata" Ubuntu v13.04 mini.iso ( with boot parameter reserve=0x1f0, 0x8)
==
see later ( in "good situation" example )
~~
===
Disable legacy ATA driver by adding the following to kernel command line in /boot/grub/menu.lst:
reserve=0x1f0, 0x8
. (This option reserves this I/O region and prevents ata_piix from loading).
==
See output of dmesg related "ata" Ubuntu v13.04 mini.iso ( with boot parameter reserve=0x1f0, 0x8) :
~~
[ 0.176027]
libata version 3.00 loaded.
[ 0.713319]
ata_piix 0000:00:07.1: version 2.13
[ 0.713397]
ata_piix 0000:00:07.1: device not available (can't reserve [io 0x0000-0x0007])
[ 0.713404]
ata_piix: probe of 0000:00:07.1 failed with error -22
[ 0.713474]
pata_acpi 0000:00:07.1: device not available (can't reserve [io 0x0000-0x0007])
[ 0.713479]
pata_acpi: probe of 0000:00:07.1 failed with error -22
~~
As result: 1) IDE disk handled by hv_storvsc , but 2) no CD-ROM device
==
~ # blkid
/dev/sda1: LABEL="ARCH_BOOT" UUID="009c2043-4bl7-4f95-al4d-fb8951f95b5d" TYPE="ext2"
==
~~
VVM>>
VVM>>Q1: Output of blkid contain duplicate UUID ?
VVM>>
-> blkid contains duplicate UUID, below are the output.
~~
This situation is classic problem "
use hv_storvsc instead of ata_piix to handle the IDE disks devices ( but not for the DVD-ROM / CD-ROM device handling)
~~
For compare, see example "good situation":
See output of dmesg related "ata" Ubuntu v13.04 mini.iso ( without boot parameter reserve=0x1f0, 0x8) :
~~~~
~ # dmesg |grep ata
[ 0.167224] libata version 3.00 loaded.
[ 0.703109] ata_piix 0000:00:07.1: version 2.13
[ 0.703267] ata_piix 0000:00:07.1: Hyper-V Virtual Machine detected, ATA device ignore set
[ 0.703339] ata_piix 0000:00:07.1: setting latency timer to 64
[ 0.704968] scsi0 : ata_piix
[ 0.705713] scsi1 : ata_piix
[ 0.706191] atal: PATA max UDMA/33 cmd 0xlf0 ctl 0x3f6 bmdma 0xffa0 irq 14
[ 0.706194] ata2: PATA max UDMA/33 cmd 0x170 ctl 0x376 bmdma 0xffa8 irq 15
[ 0.868844] atal.00: host indicates ignore ATA devices, ignored
[ 0.869142] ata2.00: ATAPI: Virtual CD, , max MWDMA2
[ 0.871736] ata2.00: configured for MWDMA2
~~~~
===
~ # uname -a
Linux ubuntu 3.7.0-7-generic #15-Ubuntu SUP Sat Dec 15 14:13:08 UTC 2012 x86_64 GNU/Linux
~ # lsmod
hv_netvsc 22769 0
hv_storvsc 17496 3
hv_utils 13569 0
hv_vmbus 34432 3 hv_netvsc,hv_storvsc,hv_utils
~ # blkid
/dev/sr0: LABEL=”CDROM" TYPE="iso9660”
/dev/sda1: LABEL="ARCH_BOOT" UUID="009c2043-4bl7-4f95-al4d-fb8951f95b5d" TYPE="ext2"
===
( only CD-ROM and 1( one) IDE disk connected to ATA)
~~
regarding ata_piix.c patch . . .
As far as i understand this patch , it ignore ATA devices on Hyper-V when PV drivers(CONFIG_HYPERV_STORAGE=y) are enabled.
~~
Yes:
ignore ATA-HDD ( but not ignore ATA CD-ROM ) on Hyper-V when PV drivers(CONFIG_HYPERV_STORAGE=y) are enabled.
~
this patches need be backported:
cd006086fa5d ata_piix: defer disks to the Hyper-V drivers by default
and its prerequisite
db63a4c8115a libata: add a host flag to ignore detected ATA devices
~
~~
P.S.
Are You do this:
==
As temporary solution, increase on 1-2 Gb size all .vhd connected to IDE bus
( but not increase size of partitions inside disks)
==
? fsck write message a-la: "no error in file system" ?
2013-01-24 Answer by Ujjwal Kumar: As a temporary solution looks ok for me, but [ VVM: need true solution ]
P.P.S.
To Ujjwal Kumar :
My e-mail:
ZZZZZZZZZZZZZZZ
please send e-mail to me, in reply I send to You patches to ata_piix ( and *.c before and after patches) , etc.
} on 2013-01-14 -- DoNe

Prefered filesystem for 11g on linux

Is there a white paper/best practices that recommends the best file system to use for 11g on linux? any document/note numbers would be appreciated.
cheers,
M.

so you say that if it's fact that ntfs is faster then ext2 / ext3 /ext4.
first of all,i dont want to start a flamewar about filesystems/os, but it would be nice to have some facts with such statement you make.
second, the question is about linux and filesystems. so your remark about ntfs is useless
performance tests of different filesystems:
http://www.phoronix.com/forums/showthread.php?t=1765
windows 7 ntfs vs ext4 ubuntu
http://www.phoronix.com/scan.php?page=news_item&px=ODIxNw
"On average, Ubuntu 10.04 atop the EXT4 file-system with the Linux 2.6.32 kernel was 26.5% faster than Windows 7 x64 with its NTFS file-system. "
Edited by: Peres on May 28, 2010 2:01 PM
Edited by: Peres on May 28, 2010 2:01 PM

Unable to boot to Vista after changing Mac OS partition size

Greetings,
After creating an additional Mac OS partition, I can't boot into Vista anymore. Any way to fix it without re-installing?
I have an intel iMac running Leopard, and Vista on a bootcamp NTFS partition. That was working fine.
I created a new partition on the drive (using space from my Leopard partition) and installed Tiger on it for a short project. I’ve been dual booting between Leopard and Tiger just fine.
However, now I’m unable to boot using the Vista partition. I boot to a black screen with white text that states "No bootable device, hit any key" error. Of course hitting a key does nothing.
I can boot into Leopard/Tiger just fine, and can see the Vista partition from Leopard and view the files as usual. However I just can't boot into Vista. I tried running the repair tool from the Vista install disk, but that doesn't work on the NTFS partition (I think it doesn't see a windows partition to fix). Disk utility from Leopard shows the vista partition as the right size and formatted as NTFS.
I'm really stumped by the problem. Any help would be appreciated.
Thanks!

TestDisk - CGSecurity.
TestDisk is a powerful free data recovery software! It was primarily designed to help recover lost partitions and/or make non-booting disks bootable again when these symptoms are caused by faulty software, certain types of viruses or human error (such as accidentally deleting a Partition Table). Partition table recovery using TestDisk is really easy.
TestDisk can
* Fix partition table, recover deleted partition
* Recover FAT32 boot sector from its backup
* Rebuild FAT12/FAT16/FAT32 boot sector
* Fix FAT tables
* Rebuild NTFS boot sector
* Recover NTFS boot sector from its backup
* Fix MFT using MFT mirror
* Locate ext2/ext3 Backup SuperBlock
# Mac partition map
# NTFS ( Windows NT/2000/XP/2003/Vista/2008 )
TestDisk has features for both novices and experts. For those who know little or nothing about data recovery techniques, TestDisk can be used to collect detailed information about a non-booting drive which can then be sent to a tech for further analysis. Those more familiar with such procedures should find TestDisk a handy tool in performing onsite recovery.
http://www.cgsecurity.org/wiki/TestDisk
Seeing you could lose everything, I would definitely use WinClone while in OS X to backup Vista, and CCC or SuperDuper to backup your OS X volumes (or Apple DU Restore, just be sure to turn off "Ignore Ownership" and repair permissions afterward, and then rerun 10.5.2 if possible).
http://www.twocanoes.com/forums/

Best filesystem to use?

Hi
I'm just wondering wich filesystem to use for maximum speed an reability for oracle 9i on the Linux platform?
(JFS, XFS, EXT2, EXT3, REISERFS)????

Here is a good article:
http://www.linuxjournal.com/article.php?sid=5841

Should i reformat My Cloud before using with my Mac?

I purchased a WD My Cloud to use with my Macbook Air. Should I reformat it first to "Mac OS Extended (Journaled)" or should I just use the software that they recommend which is not in this format?

Hi Benler44,
I wrote with WD support, that said:
"Unfortunately it is not possible to format the internal drive. What you can do however, is connect an external USB drive to the device.
WD My Cloud device supports the following formats for externally attached USB drives:
 FAT32
 NTFS (read and write capability)
 HFS+J (MAC OS Extended (Journaled)
 Linux Ext2, Ext3/Ext4
 XFS
Don't know if somebody can trick it into a MAC OS extended (journaled) format, but mine is working fine with my Macs, Itunes, Sonos, Time Machine etc... Only downside is, that you cannot use it for iPhoto because of the format. All macs on the network connects fine with a connected external MAC OS extended (jour.) drive, but I haven't tried to put iPhoto on that one.
Hope this helps.

Filesystem ext2/ext3 at Mac OS X

Similar Messages

Maybe you are looking for