ext3 (third extended filesystem) is a journaled file system that is commonly used by the Linux kernel.

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Unable to mount root filesystem rw with journal

Trying to understand the whole journalling setup and from what I've read and tried, it's eluding me somehow. The root filesystem is ext3. Examining it via tune2fs -l /dev/root shows that '...
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Add AFP shares to ext3 partition

Is it possible to add an AFP service / protocol to an existing ext3 partition? I have a linux server that I want to share with Apple clients. The clients want to use TIME MACHINE which will only ...
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1answer
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What options are there for tuning Linux file system caching?

What various types of caching are possible in the ext3 file system and how can their values be changed using system calls or other methods? I don't want to use commands or tools.
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1answer
355 views

ext3 vs ext4 - same disk size, less usable disk space under ext4 comparing to ext3. why?

Files copied from ext3 filesystem do not fit on same size ext4 filesystem. How to reproduce: create two 1GB files, setup loop device for each, create filesystem one ext3, one ext4, mount, rsync ...
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1answer
341 views

What would happen if we mounted a file system that e2fsck is already running on?

It is generally a bad idea to e2fsck a file system while the file system is mounted (the man page mentions one specific situation where it is safe: -n given, and -c, -l or -L not given, and even then ...
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1answer
63 views

Delay before new/modified file appears

I'm seeing two separate cases where there's a (random?) delay before a new or modified file appears. The first case is my Rails development environment: I modify a code file (in vim) and save it, ...
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1answer
10 views

General ratio regarding FS <-> LV

Based on New FS size differs from LV size We need a 4 GByte sized FS on top of an LV. OS: RHEL6, 64bit. Question: How big LV is needed to have a 4096 MByte sized FS on it? Are there any percentages ...
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19 views

How to create a disk image with a partition table that can be easily resized to the target device?

I want to create a disk image with two partition, boot partition and rootfs partition. I want boot to be a fixed size and rootfs to be easily resizeable to fill the target device after the image is ...
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56 views

Delete and recreate of NTFS file format in Extended partition will maintain driver letter?

One of my computer system is having the disk partition like below 1-Primary (NTFS) (boot) 2-Primary (NTFS) (Windows C: Drive) (windows XP OS) + (software installed) 3-Primary (NTFS) (Windows D: ...
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How are the reserved GDT blocks used after online resizing in ext3 file system

I am working on Ext3 and after looking at FS layout - ext3 reserves ~1024 blocks as Reserved Group Descriptor Table (reserved GDT blocks are between Group Descriptor blocks and Bitmap blocks). These ...
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448 views

Confusion with how to restore corrupt ext3 files if power outage occurs during a file write

I am running a small embedded system. Because the system will never be gracefully shutdown and will just have the power cable unplugged, I am running an initramfs but mounting an ext3 partition on a ...
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linux io stack analysis

I'm trying to understand the Linux IO stack by analyzing blktrace trace. Below is the trace i captured by executing simple fio sequential write with no Direct IO (5 x 8k request size). 8,16 1 ...
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How do distribution installers avoid ext2/3/4 initialization?

When I format a volume with ext4, I have two options regarding initialization. I can either use lazy_itable_init=1 (the default setting) to delay initialization until after the volume is first mounted,...
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0answers
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What happens to directory entry when a file is renamed

What exactly happens to the directory entry when a file is renamed? Is it that the entry of the oldfile is flushed and the newfile is replaced at it's place or a completely new entry is made at the ...
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0answers
81 views

Mounting Ext3 in linux different user

I am trying to mount an ext3 based memory stick in Linux based development board. I used mount with -u and -g for mounting the fat based memory stick with different user. When I tried the same ...
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0answers
166 views

Mount EXT3 with 16KB blocks

I have a failing Sparc based Netgear ReadyNAS that uses LVM on Raid with EXT3 partitions with a 16KB block size. I would like to pull the drives out of the NAS and mount them read only in a Linux box. ...
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290 views

What caused this ext3 filesystem / mounting problem?

((K)Ubuntu 12.04, kernel 3.2.0-38-generic, fstype ext3) I recently came across the 'great idea' of using hibernation to save state in my main OS, while I boot another OS. I've done this without ...
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Ext3 Journaling Question on inode and disk layout

I was going through Journaling and JBD and wanted to ask you a very basic question for which I was not getting an answer: 1.Why Journal Inode number comes as 8 when we do ./dumpe2fs? 2.So far my ...
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ufs fails on debian

I am a longtime openSUSE user. However, my friend convinced me to give debian a try. When installing, I noticed there was no ext3 option (which I usually use), so I selected ufs. Then I got an error:...
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set partition bootable with gdisk GPT

Using GPT, how do I set this disk: sda1 ext3 FUJITSUMHV2080B so that the partition is bootable? Or, do I need to reformat using the install disk?
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no ext2/ext3/ext4 directory in /lib/modules/linux version/kernel/fs/

I have installed Linux 3.5 kernel and have compiled e2fsprogs as well. I have my own version of ext3 file system - lets say it is myfs. I have compiled myfs as well. Now I have few questions: How to ...