Check for e4fsprogs commands for ext4 support on RHEL/CentOS 5.x (#738706)
RHEL / CentOS 5.6 and later officially support ext4 file system [1]. From RHEL / CentOS 5.3 ext4 file system was included as a technology preview. Ext4 file system tools are in a separate package e4fsprogs, using uniquely named commands. The standard e2fsprogs commands only support ext2 and ext3 file systems. # mkfs.ext4 /dev/sdb3 # tune2fs -l /dev/sdb3 tune2fs 1.39 (29-May-2006) tune2fs: Filesystem has unsupported feature(s) while trying to open /dev/sdb3 Couldn't find valid filesystem superblock. # echo $? 1 # tune4fs -l /dev/sdb3 tune4fs 1.41.12 (17-May-2010) Filesystem volume name: <none> Last mounted on: <not available> Filesystem UUID: ba4a9d58-7728-4b47-8a90-80e772615637 Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: has_journal ext_attr resize_inode dir_index filetype extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize ... For ext4 only, search for the e4fsprogs specific commands first and the standard e2fsprogs commands second. [1] RHEL 5.6 Release Notes, 5. Filesystems and Storage https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/5/html/5.6_Release_Notes/ar01s05.html Bug #738706 - GParted doesn't support ext4 on RHEL/CentOS 5.x
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