General :: Formatting HD With Ext3 / Ext4 With Full RWX Permissions
Dec 29, 2009
How can I format a USB hard drive to ext3/ext4 or whatever file format and have full permission to read, write and execute all files afterwards? When using the command line (as ROOT of course) mkfs.ext3 /dev/sdb? Restricts the rights to ROOT as does the procedure gParted. The man mkfs did not help much. Configuring the fstab- file is a bit of a hassle, so it would be nice, if there was an option to set the permissions "correctly" right from the beginning. Setting Ubuntu (I'm using Ubuntu 9.10) up, so that it mounts USB devices not as ROOT as default but giving all users all permissions seems to be really complicated, as a guy from my local LUG told me.
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Jun 12, 2011
I have just purchased a 2TB drive for my server and I was trying to get an idea of the differences between these file systems or other file systems out there. What is the amount of space after formatting for ext4, ext3, and ntfs?
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Sep 2, 2011
Tired of fat32 fragility, I reformatted a 4GB pen-drive as ext4 using Yast's partitioner. I chose format as ext4 and checked fstab options "can be mounted by user", "no access time" and "ordered journaling". I thought that these fstab options would be ineffective since a removable device won't be added to fstab. when I insert the pen-drive it auto-mounts and the folder /media/EMTEC is created (EMTEC is the volume name). The relevant mount entries are:
Code:
:~> cat /etc/fstab | grep sde
:~> cat /etc/mtab | grep sde
/dev/sde1 /media/EMTEC ext4 rw,nosuid,nodev,relatime,barrier=1,data=ordered 0 0
:~>
There's no fstab entry, as it should be, and there is a mtab entry corresponding to the pen-drive, /sde1. However the /media/EMTEC as created (by udev, I suppose) is owned by root, I can't write to it. But if I change (as root) the /etc/EMTEC folder permissions so it belongs to the regular user, i can (obviously) write to it *and* it stays so *between* remounts. Haven't tried a reboot yet. What I'm not sure is if ordered journaling is OK for a pen-drive - or any kind of journaling, for that matter. Or will this significantly decrease flash memory life? Also, the fstab options set in Yast appear to be remembered by whatever creates mtab, as well as /media/EMTEC permissions. Is that so? Where are these settings kept? How does this work?
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Feb 3, 2010
I've been using full disk encryption with luks on two Dell laptops for about 2.5 years. One is 64 bit Fedora (upgraded to 12), another is 32 bit Ubuntu (upgraded to 9.10), both were ext3, until recently.Over time, performance degraded substantially, especially on Fedora, which was put to a heavier use. That laptop has 4 Gb RAM, two 2.5 GHz T9300 CPUs, and 56 Gb of free space.
It was especially unbearable after a reboot. Programs like firefox and thunderbird would take close to a minute to start when ran for the first time after a boot. The login process was painfully slow, and some Gnome applets (e.g. Tomboy notes, keyboard layout switcher) would fail to load on the first login, with an error. I experienced this problem on both laptops with full encryption. I had to log out and relogin to make the applets appear. I tried various boot and mount options and was thinking about switching to ecryptfs (encrypted home).
I also use 3 desktops with no encryption and a netbook with ecryptfs on /home, which all work fine. All are Dell, 2 Ubuntu and 2 Fedora. The Gnome applets problem seems to be due to slowness of the installs with the full disk encryption. The last thing I tried is to migrate ext3 to ext4. I also converted /home, /usr, /opt to extents, following[URL].. That seemed to do the trick. Gnome applets now load fine on both laptops, and startup time is back to tolerable.
Is this a typical experience: ext3 performance degradation with time and a much better performance with full disk encryption once ext3 is migrated to ext4?
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May 19, 2010
I had 5.4 machine. Upgraded to 5.5 today via yum upgrade. All went fine. Rebooted. Wanted to convert root partition to ext4 (I have three partitions: /boot, / and swap). All of them on software RAID 1 (root is /dev/md2). I did the following for converting
yum install e4fsprogs
tune2fs -O extents,uninit_bg,dir_index /dev/md2
nano /etc/fstab # I indicated here that my /dev/md2 is of ext4
[code]....
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Sep 15, 2010
I am wondering if any of you technical guys would be willing to format my Western Digital external USB 1.5 TB Hard Drive to Linux EXT3. I am naturally happy to pay for your time and trouble and for postage. The WD drive is for storing video footage and will be connected to my Humax Freesat HD Digital TV Box(not a computer), and the Humax Box will only record high deffination programmes in EXT3 format. I've tried to do the job myself with my PC, but have failed to change my system to format in Linux.
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May 18, 2010
I have a Western Digital My Book World Edition external harddisk with blue rings. I filled it up and now want to delete the data and start over. I'm set in my ways and have been accustom to reformatting harddisks periodically (sector maintainance, etc.) It's worked for me as I've luckily have not had a disk crash in 25 years.My webapp is not helping me with the reformat and neither is Western Digital tech support. I've heard that it was factory formatted with something called Linux ext3. Does this make sense? Has anyone had any experience with reformatting external harddisks being used as a NAS (home use).
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Mar 9, 2010
how to convert ext3 to ext4? I'd like to convert partitions which I use for virtual machines (vmware-server and virtualbox). I use Ubuntu 9.10 as vmware-server host and Gentoo as virtualbox host.
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Jan 31, 2011
I have installed ubuntu to my pc. i made 3 partitions. one for system, one for data and one for swap. two of them were ext4. after some time i have reinstalled ubuntu again. but this time i didn't put to format the second partition, but just mount it using ext4. after that i cannot open my files. checked with gparted shows that 2GB used, but with df 188MB. and in properties writes ext3/ext4 filesystem. i used chown, chgrp but didn't help. please help, these data are ver important. i cannot lose them.
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Jul 7, 2011
I was in the process of installing Ubuntu 11.10, but got stuck choosing which file system to use. ext3 and ext4; which is better for a personal desktop? If ext4 is better, will it work well on my old PC (bought 3 years ago), or perhaps ext4 is not actually compatible with an old hard disk?
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Aug 30, 2011
is there a way of sharing an ext3/ext4 formatted partition on an external USB drive between different users (uids) on different Linux machines without creating a group for this purpose, setting the group ownership of the partition to this group and adding each respective user to the group on every machine?This would mean that I need to have root privileges on every machine... which I may not have in some cases.I'm using the partition to store the code I'm developing on Linux and I would like the option to be safe... if possible.I could use a vfat partition but then I have no control of the rw rights + I cannot develop directly in the dir: I would always have to tar.gz the directory, extract, work, tar.gz, copy to the external drive.
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Sep 7, 2009
How well is the ext4 new file system mounting compatibility with the older ext3 previous Linux installations ? I refer to Ubuntu 9.04 and the new Fedora 11 which have the option to install with the ext4 file format. Will it be better if I install with the older ext3, so that I will be able to mount all other Linux from each other in a multi-boot system ?
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Oct 8, 2010
I use an external hard drive for storing lots of files I share with friends and family.
I know I can set 666, but I can only do this in contained files and directories, NOT on the actual disk root. This means people can't write to the disk root.
Also, setting 666 might cause some issues when someone else pastes files and applies some other permissions.
Is there some way to remove permissions completely from an ext3 filesystem? I mean, have the entire "permissions" layer removed? Otherwise, what can I do?
Changing fstab is out of the question, this is a shared EXTERNAL disk; people use it on their computers, I can't go around changing their fstab.
The same goes to mount parameters.
[edit] Ok, I said ext3, but it's actually ext4. I don't see any difference in this case anyway, but just in case.
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Oct 25, 2009
How would I format my partition into a ext3 file system?
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Jan 4, 2011
I'm having problem in formatting the newly added hard drive to my Ubuntu 64 bit server, is there any explanation why I got stuck to this error ?
Code:
root@isuzu:~# fdisk -l
Disk /dev/sda: 21.5 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
[Code].....
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Aug 1, 2011
I'm trying to format a 500 GB external drive with gparted in ubuntu 10.10 (I searched & didn't see this issue in the forum). I set up and formatted two partitions, one for fat32, and the other with ext3, which appears to format ok, but I can't use it. Both partitions show up and appear to mount, but the ext3 partition won't accept activity (make new folder, copy in files), while the fat32 partition works fine. Both partitions show up ok when I query in terminal "sudo fdisk -l"
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Aug 2, 2010
I would like to format my current NTFS drive to EXT4. I've searched and found there are two commands to do this, mkfs or mke2fs.
What are the proper steps to do format an NTFS to EXT4 ?
If you recommend EXT3 over 4,
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Dec 19, 2010
I was thinking about reformatting my thumbdrives and external HDs from NTFS or FAT32 over to ext4. Anyone know if this could potentially cause any problems? They won't be used on a win machine.
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Jul 10, 2011
i had an ntfs partition..i formatted it to ext4 with gparted..w i cant write any files to it..i think because gparted executed with root previliges so it has now made root the owner of the drive.
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May 24, 2011
I'm trying to install SL6 to a pair of 2TB harddisks in a RAID 1 array. The problem is that when the "Formatting" progress window that says "Creating ext4 filesystem on /dev/mapper/pdc_eahgdeafbgp1" comes up it appears to eventually freeze. It's been like that for 6 hours without the progress bar moving at least. I have another identical system that I booted up using the gparted live cd to see if I could get any more information using that. I first created a 500MB ext4 partition and mkfs.ext4 ran almost instantly. I then tried 5GB and it seemed to take maybe about a second or two and worked fine. I then jumped up to 500GB and it's been running for about 5 hours now. I'm pretty sure that I remember the creation of an ext4 filesystem occuring extremely fast even for very large partitions, but this is the first time I've played with RAID.
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Jul 23, 2010
I've give up hope on ever seeing an extent-enabled ext4 filesystem driver for Windows.
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Nov 13, 2010
I've a flash drive that it's partitions formatted as fat32, ex4 and encrypted ext4. It works fine on the system that I've formatted it on, but when I try to use it on my other Linux distributions I get these problems:
* ext4 partition accessible by root only.
* after entering my pass-phrase I get
Code: /dev/mapper/udisks-luks-uuid-***** uid1000 is mounted What I'm asking for is a way to create the ext4 file system without being attached to some UID and to be accessible by any user.
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Apr 24, 2011
I am currently running Ubuntu Studio (a variant of Ubuntu 10.10), dual-booted with Windows 7. For convenience's sake, I have three partitions - one for 7, one for Ubuntu, and a third shared partition, for all of my non-OS-specific media, documents and programs. I am using RhythmBox Media Player, and have it pointed at a folder on the shared partition as a music library.
However, every time I boot, I have to re-mount the shared partition, which requires re-entering my login password. In a similar vein, when I'm installing programs in terminal (doing 'sudo apt-get install [x]'), I have to re-enter my password each time I do a sudo command. Is there any way to keep super-user permissions until I choose to drop them myself? Better yet, can I make it so that logging in as the admin account automatically instates super-user privileges?
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Feb 4, 2010
OS: Debian unstable 32bit, kernel 2.6.32-2, grub 1.98 from late january 2010 (only have working net-access from work now, so I am grabbing information from memory). EXT3 and EXT4 support is compiled into the kernel along with chipset/scsi/sata support (not as modules), and I have tested to boot ext3 with it before proceeding. Prereq: my old disk started to have too much S.M.A.R.T errors, so I bought another one, put in a USB cabinet, added swap and ext4 partition/filesystem to it, and copied over all data from the old system to the new that was mounted at /dest using the command "find ./ -xdev -print0 | cpio -paV0 /dest". Swiched disks, so I now have the ext4 disk sitting at /dev/sda (partitions: sda1 => ext4, sda2 => swap), and booted into rescue-mode from cdrom, using /dev/sda1 as root with a shell on. After doing this, I performed the following commands:
mount --bind /dev /dest/dev
chroot /dest
modified the /etc/default/grub to instruct the kernel to boot using ext4, ran grub-install --recheck /dev/sda
ran update-grub to modify /boot/grub/grub.cfg (which looks as it should) After doing this, grub finds my partition and mounts it. It however stalls with the message: "warning: unable to open an initial console" and does nothing after this point. I have no ramdisk, but my old kernel booted fine from ext3 (and still does if I copy it to a ext3 partition), and since the ext4 support is compiled into the kernel - should I really need a ramdisk?
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Jan 16, 2010
Is there guide for converting ext3 to ext4 on Fedora? I use Fedora 12 which is regularly updated. How safe is procedure for data, I have only one ext3 partition on disk which has one ntfs and that ext3 partition (and also one small swap partition).
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May 25, 2010
I'm currently using Ubuntu, but just ordered a new SSD (64GB) & plan to install Fedora on it- but just have a few questions...
- What is Fedora's position on MONO & MoonLight?
- I will be leaving /home on my 600+ BGB HDD, but root, /usr & swap will be on my SSD- will there be any potential issues?
- What format should I use (Ext3, Ext4, XFS...) for my SSD?
- Any recommendation of rpm repo's I should add?
- Will FGLRX work with FC13 or FC12
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Nov 15, 2010
i installed ubuntu 10.04 and accidentally choosen ext3 over my home partition ext4...and now it erased(?) all the files in my home folder...
is there a way to return the ext4 files??
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May 17, 2010
I had Lenny with ext3 installed on my notebook. I've done the Upgrade from Lenny to Squeeze. Howto and should I convert ext3 to ext4?
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Dec 10, 2010
I have a 6 disk machine, i am using FC12, i created a software raid 5 device /dev/md1
i formatted it
Code:
mkfs.ext4 /dev/md1
and mounted with options as so:
[Code]...
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Oct 5, 2010
I'm using CentOs 5.4 (2.6.18-164.15.1.el5 #1 SMP Wed Mar 17 11:30:06 EDT 2010 x86_64). I tested out ext4 on a partition for the last few months and it seems to work fine. The issue is that quotas dont seem to work correctly on it. Is there a way to revert back to ext3? Mainly the quota tools do not work on it.
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