ext3 is the default file system for many Linux distributions.
ext3 offers many features as a file system - journaling as well as very efficient directory indices.
Questions tagged [ext3]
283 questions
4
votes
5 answers
How do I clone an lvm ext3 partition to a smaller drive?
I have an lvm ext3 partition that is larger than the drive I would like to clone it onto, but is nowhere close to full, so all of the data, itself, would fit.
What would be the best way to clone this drive to the smaller one?
I would prefer to not…
rck
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4
votes
1 answer
Mounted filesystem / changed to read-only
This is how / should be mounted
mount
/dev/md0 on / type ext3 (rw,errors=remount-ro)
but in fact, it is mounted read-only because of unknown reason so far for me.
cat /proc/mounts
/dev/md0 / ext3 ro,relatime,errors=remount-ro,data=ordered 0…
John
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4
votes
1 answer
Online resize of large ext3 file system - is performance affected?
I am planning for a resize of a rather large file system hosting an Oracle instance (one of several on the same server). The disk is 4 TB striped over several LUNs, I'm increasing by 1 TB keeping the same stripe width. As we usually use Oracle ASM…
martineg
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4
votes
3 answers
Does CentOS 5.x support ext4?
I believe the default OS file system in CentOS 5 is ext3.
Is it possible to use ext4 on Centos 5.x, or only on 6.x? Can I upgrade an existing ext3 filesystem to ext4?
edotan
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4
votes
3 answers
Ext3 Stride/Stripe-Width Calculation for 3-Disk Software RAID1E
For reasons too complex to get into here, I'm using a 3-disk RAID1E on some linux systems. See here for more info on that.
So my understanding is that for optimizing filesystem layout on this volume, you use the following calculation:
chunk-size =…
Alex G
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4
votes
3 answers
lvm+ext3 vs ext3 recovery
I would like to hear from people who have personal experience recovering crashed systems or data from crashed drives using lvm+ext3 and ext3. Which option is harder to recover from backup or to extract missing data?
Kazimieras Aliulis
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1 answer
Relatime vs noatime for flash drives
I am running a web server off of a SheevaPlug, and the OS and system are stored on an SD card with an ext3 file system. I know that atime is a major source of writes that wear out flash memory.
This question recommends using the relatime mount…
ShankarG
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4
votes
3 answers
Read-only root file system - ext3 error?
I have a problem with ext3 filesystem. It's not writable and I can't remount it.
# echo 1 > /file
-bash: /file: Read-only file system
# mount
/dev/mapper/VolGroup00-LogVol00 on / type ext3 (rw)
# mount -o remount,rw /
mount: block device…
Maciej Nowakowski
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votes
3 answers
how do I convert a live root ext3 filesystem to ext4?
I have a root filesystem thats live and mounted and I'd like to convert it to ext4. All the howto's i've read deal with booting off a live CD but thats not an option.
incognito2
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votes
1 answer
rsync -a doesn't copy ext3 attributes
I just stumbled upon the fact that rsync doesn't preserve at least the ext3 "immutable" flag - while it should do so when using -a, IMHO. Quick test case:
# touch testfile
# chattr +i testfile
# rsync -a testfile testfile2
# lsattr…
Jonas
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4
votes
2 answers
Pass Column of fstab
If I have the 6th column in fstab (the pass column) set to 0, does that mean checks will never be forced at boot regardless of anything like File System State, Mount Count, and Check Interval on the file system itself (see dumpe2fs)?
The fstab…
Kyle Brandt
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4
votes
2 answers
What are the merits of ext3 over ext4?
Specifically want to use the storage for music/video files but with a smattering of usual doc/xls/etc) - wondering if there is a concrete reason to go for one over the other.
Thanks
Jon
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3
votes
1 answer
EXT4 filesystem corruption
I have a CentOS 6x server and running a Java application on it, the application is using a mount point /javapp which is an EXT4 filesystem.
suddenly I got the following error in the system logs:
kernel: attempt to access beyond end of device
…
Zach
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3
votes
3 answers
ext3 format options
I'm creating a ext3 filesystem on top of a software raid5 (md) and I'm wondering what are the best parameters when creating the filesystem (with mkfs.ext3) and while mounting.
RAID5 chunk size is 128k, array has 3 drives, 900 GB effective total.…
Matic
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3
votes
2 answers
/var a file and not a folder
On a CentOS 5.3 server the /var folder has changed to a file. Appears to be FS corruption.
Rest of the FS looks OK. Anyone know a quick way to fix this? fsck.ext3 reports the fs as clean even using a force check.
It looks like the machine had the…
Daniel