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− | * Man page | + | * Man page: https://linux.die.net/man/8/mkfs.ext4 |
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<pre> | <pre> | ||
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− | Create an ext4 filesystem on a file | + | Create an ext4 filesystem on a file: |
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mkfs.ext4 -F /path/to/yourfile | mkfs.ext4 -F /path/to/yourfile | ||
-F force mke2fs to create a filesystem, even if the specified device is not a partition on a block special device, or if other parameters do not make sense. In order to force mke2fs to create a filesystem even if the filesystem appears to be in use or is mounted (a truly dangerous thing to do), this option must be specified twice. (from man page) | -F force mke2fs to create a filesystem, even if the specified device is not a partition on a block special device, or if other parameters do not make sense. In order to force mke2fs to create a filesystem even if the filesystem appears to be in use or is mounted (a truly dangerous thing to do), this option must be specified twice. (from man page) | ||
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== Activities == | == Activities == | ||
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# [[resize2fs]] online and ext4 filesystem | # [[resize2fs]] online and ext4 filesystem | ||
# Learn about Lazy initialization feature of ext4: https://www.thomas-krenn.com/en/wiki/Ext4_Filesystem#Lazy_Initialization and how to avoid it <code>mkfs.ext4 -E lazy_itable_init=0,lazy_journal_init=0 /dev/mapper/fc-device</code> | # Learn about Lazy initialization feature of ext4: https://www.thomas-krenn.com/en/wiki/Ext4_Filesystem#Lazy_Initialization and how to avoid it <code>mkfs.ext4 -E lazy_itable_init=0,lazy_journal_init=0 /dev/mapper/fc-device</code> | ||
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== See also == | == See also == |
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