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Questions tagged [ext4]

The ext4 or fourth extended filesystem is a journaling file system for linux/*nix developed as the successor to ext3.

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An LVM snapshot of an ext4 fs does not seem very clean

I create an LVM snapshot of a mounted ext4 fs: lvcreate -L 10GiB -s -n "root-snapshot" "/dev/myvgname/root" If I then run e2fsck on /dev/myvgname/root-snapshot, it says: e2fsck 1.42.5 (29-Jul-2012) Clearing orphaned inode 263640 (uid=0, gid=0,…
dragonroot
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Zero byte files after power failure - ext4 centos 6.4

Files written within a minute of a power failure are zero bytes when the system comes back. Testing for a system that we can not guarantee will have ups backup. Centos 6.4 kernel 2.6.32-358.14.1.el6.x86_64 ext4 mounted with defaults See this…
Sean Leighton
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Multiple VMs mounting and writing on the same partition

I have multiple VMs ( XEN domains ) which are getting data and writing it on a directory in a ext4 partition. Is this going to introduce data loss or corruption?
s1na
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RAID5 Bad Superblock, not booting to OS

I've been running Ubuntu 12.04 LTS for about 6 months on a computer that has 3 180gb SSDs in EXT4 RAID5 configured through the motherboard's BIOS. The OS froze and computer had to be forced down. On boot after the BIOS it just hangs at a blank…
jchysk
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ext4 on faulty disks. How to avoid remount read-only?

The Problem: I'm in charge for a Hadoop cluster of 44 nodes. We have 1.5TB WD Green Drives with (quite unknown) the Load Cycle Count problem. These disks work fine but as they get older they show an increasing number of bad blocks. Rewriting these…
kei1aeh5quahQu4U
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Storing many small files with xattr in XFS and ext4

I have many small files (20 millions) with xattr on XFS drives. The average size of files is around 20KB and the average size of xattr is about 512 bytes. Because I would like to move them to ext4, I tested to copy a part of these files into ext4…
beketa
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No posix acl in debian Wheezy with ext4

I was running a new script and encountered the following error: Your filesystem or build does not support posix ACLs So I thought no problem, just add acl,user_xattr to my fstab. It now looks like the…
timmeyh
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Recover Crypt password on Partition - RHEL 6

I'm new around here and I'm not sure if this is the right place to post. I was recently asked to bring in a used server from another site of ours. On booting, I found that it has been encrypted using LUKS. No one (either at our Head Office or the…
rahuL
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How i can restrict certain file extension upload via ssh?

How can I restrict certain file extensions and file upload size via SSH? I am using Ubuntu 12.10 default installation and Open-ssh server.
Ignacio S.
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~18m files total files EXT4 poor performance, any advice?

So on my linux server which runs Ubuntu 12.04, I have a folder in there that has ~3000 folders and within those folders they contain about 3000 text files each. In total, this takes roughly 80 GB. So whenever I ls into any of these folders, the…
ast4
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is running rsync after filesystem crash enough?

On my Debian Squeeze server, a filesystem crashed badly. I ran fsck.ext4 on it and it corrected many things. Now everything seems to be fine. Additionally, ran an rsync from a recent backup to the failed filesystem. My question: Now that rsync has…
andreas-h
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How to log kernel panics without KVM

My server is crashing and I can't find an answer why. It all started after my datacenter upgrade RAM from 16 GB to 32 GB. I also found such logs in dmesg - they've started to show itself just before the first kernel panic: EXT4-fs error (device…
Spacedust
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EXT4-fs error (device loop0): ext4_lookup: deleted inode referenced:

EXT4-fs error (device loop0): ext4_lookup: deleted inode referenced: Is this a serious issue? Just noticed it after doing a 15GB CPanel Account Restore.
Julia Roberts
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ext4: error loading journal

I have an external hard drive with two partitions: A small FAT32 which is mostly empty and works fine and a large ext4 with tons of data, most of which isn't backed up. The ext4 is visible, but can't be mounted. I get an "error loading journal"…
thekthuser
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running mke2fs with limited memory

I'm working on a computer with very little memory (128MB) - for my application I need to format large drives (4TB) I'm able to format greater than 2TB disks, up to about 2.5TB, but beyond that I'm given the below mke2fs 1.42-WIP…
stuck
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