How to check XFS filesystem version?

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How to check the version of a XFS filesystem on a system, whether it is V5 or later?

edited Aug 26 at 17:09

sebasth

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asked Aug 29 '16 at 15:20

MikasaAckerman

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How to check the version of a XFS filesystem on a system, whether it is V5 or later?

edited Aug 26 at 17:09

sebasth

6,34421643

asked Aug 29 '16 at 15:20

MikasaAckerman

17917

add a commentÂ |Â

up vote
6
down vote

favorite

How to check the version of a XFS filesystem on a system, whether it is V5 or later?

edited Aug 26 at 17:09

sebasth

6,34421643

asked Aug 29 '16 at 15:20

MikasaAckerman

17917

How to check the version of a XFS filesystem on a system, whether it is V5 or later?

linux xfs

edited Aug 26 at 17:09

sebasth

6,34421643

asked Aug 29 '16 at 15:20

MikasaAckerman

17917

edited Aug 26 at 17:09

sebasth

6,34421643

asked Aug 29 '16 at 15:20

MikasaAckerman

17917

edited Aug 26 at 17:09

sebasth

6,34421643

edited Aug 26 at 17:09

sebasth

6,34421643

edited Aug 26 at 17:09

sebasth

6,34421643

asked Aug 29 '16 at 15:20

MikasaAckerman

17917

asked Aug 29 '16 at 15:20

MikasaAckerman

17917

asked Aug 29 '16 at 15:20

MikasaAckerman

17917

add a commentÂ |Â

3 Answers
3

active

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votes

up vote
5
down vote

accepted

Since version 3.15, the kernel tells you the version of XFS used in each filesystem as it mounts it; dmesg | grep XFS should give you something like

[1578018.463269] XFS (loop0): Mounting V5 Filesystem

Instead of loop0 on your system you'll get the underlying device, and V5 will be replaced by whatever version your filesystem uses.

Older kernels officially supported XFS version 4 filesystems, but could mount version 5 filesystems (since mid 2013); for the latter, the kernel would print

Version 5 superblock detected. This kernel has EXPERIMENTAL support enabled!

when the filesystem was mounted.

edited Sep 15 '16 at 21:00

answered Sep 2 '16 at 12:49

Stephen Kitt

146k22321386

I get something like this: 1.342982] SGI XFS with ACLs, security attributes, large block/inode numbers, no debug enabled [ 1.345446] XFS (dm-0): Mounting Filesystem [ 1.497979] XFS (dm-0): Starting recovery (logdev: internal) [ 1.587471] XFS (dm-0): Ending recovery (logdev: internal) [ 6.980611] XFS (sda2): Mounting Filesystem [ 9.675872] XFS (sda2): Ending clean mount
â€“Â MikasaAckerman
Sep 15 '16 at 19:19

@MikasaAckerman OK, that means you're using a kernel older than 3.15, and a version 4 filesystem (see my updated answer for details).
â€“Â Stephen Kitt
Sep 15 '16 at 21:01

add a commentÂ |Â

up vote
2
down vote

We can check using below command.

# yum list installed | grep xfs

enter image description here

# yum info xfsprogs

enter image description here

edited Aug 29 '16 at 17:52

GAD3R

22.9k164895

answered Aug 29 '16 at 16:16

Babin Lonston

1,9161920

This only shows the installed version of xfsprogs tools. The question is about the the version of file system on disk format on an existing file system. xfsprogs version doesn't tell which on disk format version is used on existing file systems: file systems created with older versions of xfsprogs will have an older on disk format version.
â€“Â sebasth
Aug 26 at 17:04

add a commentÂ |Â

up vote
2
down vote

You can check the on disk format version of a XFS file system with xfs_db.

Example output of an old (V4) XFS file system on my system:

xfs_db -r /dev/...
xfs_db> version
versionnum [0xb5b4+0x8a] = V4,NLINK,DIRV2,ATTR,ALIGN,DALIGN,LOGV2,EXTFLG,MOREBITS,ATTR2,LAZYSBCOUNT,PROJID32BIT

Output of a new (V5) XFS file system (created with xfsprogs version 4.9.0):

xfs_db -r /dev/...
xfs_db> version
versionnum [0xb4a5+0x18a] = V5,NLINK,DIRV2,ALIGN,LOGV2,EXTFLG,MOREBITS,ATTR2,LAZYSBCOUNT,PROJID32BIT,CRC,FTYPE,FINOBT

edited Aug 26 at 16:57

answered Aug 26 at 16:50

sebasth

6,34421643

add a commentÂ |Â

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3 Answers
3

active

oldest

votes

3 Answers
3

active

oldest

votes

up vote
5
down vote

accepted

Since version 3.15, the kernel tells you the version of XFS used in each filesystem as it mounts it; dmesg | grep XFS should give you something like

[1578018.463269] XFS (loop0): Mounting V5 Filesystem

Instead of loop0 on your system you'll get the underlying device, and V5 will be replaced by whatever version your filesystem uses.

Older kernels officially supported XFS version 4 filesystems, but could mount version 5 filesystems (since mid 2013); for the latter, the kernel would print

Version 5 superblock detected. This kernel has EXPERIMENTAL support enabled!

when the filesystem was mounted.

edited Sep 15 '16 at 21:00

answered Sep 2 '16 at 12:49

Stephen Kitt

146k22321386

I get something like this: 1.342982] SGI XFS with ACLs, security attributes, large block/inode numbers, no debug enabled [ 1.345446] XFS (dm-0): Mounting Filesystem [ 1.497979] XFS (dm-0): Starting recovery (logdev: internal) [ 1.587471] XFS (dm-0): Ending recovery (logdev: internal) [ 6.980611] XFS (sda2): Mounting Filesystem [ 9.675872] XFS (sda2): Ending clean mount
â€“Â MikasaAckerman
Sep 15 '16 at 19:19

@MikasaAckerman OK, that means you're using a kernel older than 3.15, and a version 4 filesystem (see my updated answer for details).
â€“Â Stephen Kitt
Sep 15 '16 at 21:01

add a commentÂ |Â

up vote
5
down vote

accepted

Since version 3.15, the kernel tells you the version of XFS used in each filesystem as it mounts it; dmesg | grep XFS should give you something like

[1578018.463269] XFS (loop0): Mounting V5 Filesystem

Instead of loop0 on your system you'll get the underlying device, and V5 will be replaced by whatever version your filesystem uses.

Older kernels officially supported XFS version 4 filesystems, but could mount version 5 filesystems (since mid 2013); for the latter, the kernel would print

Version 5 superblock detected. This kernel has EXPERIMENTAL support enabled!

when the filesystem was mounted.

edited Sep 15 '16 at 21:00

answered Sep 2 '16 at 12:49

Stephen Kitt

146k22321386

I get something like this: 1.342982] SGI XFS with ACLs, security attributes, large block/inode numbers, no debug enabled [ 1.345446] XFS (dm-0): Mounting Filesystem [ 1.497979] XFS (dm-0): Starting recovery (logdev: internal) [ 1.587471] XFS (dm-0): Ending recovery (logdev: internal) [ 6.980611] XFS (sda2): Mounting Filesystem [ 9.675872] XFS (sda2): Ending clean mount
â€“Â MikasaAckerman
Sep 15 '16 at 19:19

@MikasaAckerman OK, that means you're using a kernel older than 3.15, and a version 4 filesystem (see my updated answer for details).
â€“Â Stephen Kitt
Sep 15 '16 at 21:01

add a commentÂ |Â

up vote
5
down vote

accepted

Since version 3.15, the kernel tells you the version of XFS used in each filesystem as it mounts it; dmesg | grep XFS should give you something like

[1578018.463269] XFS (loop0): Mounting V5 Filesystem

Instead of loop0 on your system you'll get the underlying device, and V5 will be replaced by whatever version your filesystem uses.

Older kernels officially supported XFS version 4 filesystems, but could mount version 5 filesystems (since mid 2013); for the latter, the kernel would print

Version 5 superblock detected. This kernel has EXPERIMENTAL support enabled!

when the filesystem was mounted.

edited Sep 15 '16 at 21:00

answered Sep 2 '16 at 12:49

Stephen Kitt

146k22321386

Since version 3.15, the kernel tells you the version of XFS used in each filesystem as it mounts it; dmesg | grep XFS should give you something like

[1578018.463269] XFS (loop0): Mounting V5 Filesystem

Instead of loop0 on your system you'll get the underlying device, and V5 will be replaced by whatever version your filesystem uses.

Older kernels officially supported XFS version 4 filesystems, but could mount version 5 filesystems (since mid 2013); for the latter, the kernel would print

Version 5 superblock detected. This kernel has EXPERIMENTAL support enabled!

when the filesystem was mounted.

edited Sep 15 '16 at 21:00

answered Sep 2 '16 at 12:49

Stephen Kitt

146k22321386

edited Sep 15 '16 at 21:00

answered Sep 2 '16 at 12:49

Stephen Kitt

146k22321386

answered Sep 2 '16 at 12:49

Stephen Kitt

146k22321386

answered Sep 2 '16 at 12:49

Stephen Kitt

146k22321386

I get something like this: 1.342982] SGI XFS with ACLs, security attributes, large block/inode numbers, no debug enabled [ 1.345446] XFS (dm-0): Mounting Filesystem [ 1.497979] XFS (dm-0): Starting recovery (logdev: internal) [ 1.587471] XFS (dm-0): Ending recovery (logdev: internal) [ 6.980611] XFS (sda2): Mounting Filesystem [ 9.675872] XFS (sda2): Ending clean mount
â€“Â MikasaAckerman
Sep 15 '16 at 19:19

@MikasaAckerman OK, that means you're using a kernel older than 3.15, and a version 4 filesystem (see my updated answer for details).
â€“Â Stephen Kitt
Sep 15 '16 at 21:01

add a commentÂ |Â

I get something like this: 1.342982] SGI XFS with ACLs, security attributes, large block/inode numbers, no debug enabled [ 1.345446] XFS (dm-0): Mounting Filesystem [ 1.497979] XFS (dm-0): Starting recovery (logdev: internal) [ 1.587471] XFS (dm-0): Ending recovery (logdev: internal) [ 6.980611] XFS (sda2): Mounting Filesystem [ 9.675872] XFS (sda2): Ending clean mount
â€“Â MikasaAckerman
Sep 15 '16 at 19:19

@MikasaAckerman OK, that means you're using a kernel older than 3.15, and a version 4 filesystem (see my updated answer for details).
â€“Â Stephen Kitt
Sep 15 '16 at 21:01

I get something like this: 1.342982] SGI XFS with ACLs, security attributes, large block/inode numbers, no debug enabled [ 1.345446] XFS (dm-0): Mounting Filesystem [ 1.497979] XFS (dm-0): Starting recovery (logdev: internal) [ 1.587471] XFS (dm-0): Ending recovery (logdev: internal) [ 6.980611] XFS (sda2): Mounting Filesystem [ 9.675872] XFS (sda2): Ending clean mount
â€“Â MikasaAckerman
Sep 15 '16 at 19:19

@MikasaAckerman OK, that means you're using a kernel older than 3.15, and a version 4 filesystem (see my updated answer for details).
â€“Â Stephen Kitt
Sep 15 '16 at 21:01

add a commentÂ |Â

up vote
2
down vote

We can check using below command.

# yum list installed | grep xfs

enter image description here

# yum info xfsprogs

enter image description here

edited Aug 29 '16 at 17:52

GAD3R

22.9k164895

answered Aug 29 '16 at 16:16

Babin Lonston

1,9161920

This only shows the installed version of xfsprogs tools. The question is about the the version of file system on disk format on an existing file system. xfsprogs version doesn't tell which on disk format version is used on existing file systems: file systems created with older versions of xfsprogs will have an older on disk format version.
â€“Â sebasth
Aug 26 at 17:04

add a commentÂ |Â

up vote
2
down vote

We can check using below command.

# yum list installed | grep xfs

enter image description here

# yum info xfsprogs

enter image description here

edited Aug 29 '16 at 17:52

GAD3R

22.9k164895

answered Aug 29 '16 at 16:16

Babin Lonston

1,9161920

This only shows the installed version of xfsprogs tools. The question is about the the version of file system on disk format on an existing file system. xfsprogs version doesn't tell which on disk format version is used on existing file systems: file systems created with older versions of xfsprogs will have an older on disk format version.
â€“Â sebasth
Aug 26 at 17:04

add a commentÂ |Â

up vote
2
down vote

We can check using below command.

# yum list installed | grep xfs

enter image description here

# yum info xfsprogs

enter image description here

edited Aug 29 '16 at 17:52

GAD3R

22.9k164895

answered Aug 29 '16 at 16:16

Babin Lonston

1,9161920

We can check using below command.

# yum list installed | grep xfs

enter image description here

# yum info xfsprogs

enter image description here

edited Aug 29 '16 at 17:52

GAD3R

22.9k164895

answered Aug 29 '16 at 16:16

Babin Lonston

1,9161920

edited Aug 29 '16 at 17:52

GAD3R

22.9k164895

edited Aug 29 '16 at 17:52

GAD3R

22.9k164895

edited Aug 29 '16 at 17:52

GAD3R

22.9k164895

answered Aug 29 '16 at 16:16

Babin Lonston

1,9161920

answered Aug 29 '16 at 16:16

Babin Lonston

1,9161920

answered Aug 29 '16 at 16:16

Babin Lonston

1,9161920

This only shows the installed version of xfsprogs tools. The question is about the the version of file system on disk format on an existing file system. xfsprogs version doesn't tell which on disk format version is used on existing file systems: file systems created with older versions of xfsprogs will have an older on disk format version.
â€“Â sebasth
Aug 26 at 17:04

add a commentÂ |Â

This only shows the installed version of xfsprogs tools. The question is about the the version of file system on disk format on an existing file system. xfsprogs version doesn't tell which on disk format version is used on existing file systems: file systems created with older versions of xfsprogs will have an older on disk format version.
â€“Â sebasth
Aug 26 at 17:04

This only shows the installed version of xfsprogs tools. The question is about the the version of file system on disk format on an existing file system. xfsprogs version doesn't tell which on disk format version is used on existing file systems: file systems created with older versions of xfsprogs will have an older on disk format version.
â€“Â sebasth
Aug 26 at 17:04

add a commentÂ |Â

up vote
2
down vote

You can check the on disk format version of a XFS file system with xfs_db.

Example output of an old (V4) XFS file system on my system:

xfs_db -r /dev/...
xfs_db> version
versionnum [0xb5b4+0x8a] = V4,NLINK,DIRV2,ATTR,ALIGN,DALIGN,LOGV2,EXTFLG,MOREBITS,ATTR2,LAZYSBCOUNT,PROJID32BIT

Output of a new (V5) XFS file system (created with xfsprogs version 4.9.0):

xfs_db -r /dev/...
xfs_db> version
versionnum [0xb4a5+0x18a] = V5,NLINK,DIRV2,ALIGN,LOGV2,EXTFLG,MOREBITS,ATTR2,LAZYSBCOUNT,PROJID32BIT,CRC,FTYPE,FINOBT

edited Aug 26 at 16:57

answered Aug 26 at 16:50

sebasth

6,34421643

add a commentÂ |Â

up vote
2
down vote

You can check the on disk format version of a XFS file system with xfs_db.

Example output of an old (V4) XFS file system on my system:

xfs_db -r /dev/...
xfs_db> version
versionnum [0xb5b4+0x8a] = V4,NLINK,DIRV2,ATTR,ALIGN,DALIGN,LOGV2,EXTFLG,MOREBITS,ATTR2,LAZYSBCOUNT,PROJID32BIT

Output of a new (V5) XFS file system (created with xfsprogs version 4.9.0):

xfs_db -r /dev/...
xfs_db> version
versionnum [0xb4a5+0x18a] = V5,NLINK,DIRV2,ALIGN,LOGV2,EXTFLG,MOREBITS,ATTR2,LAZYSBCOUNT,PROJID32BIT,CRC,FTYPE,FINOBT

edited Aug 26 at 16:57

answered Aug 26 at 16:50

sebasth

6,34421643

add a commentÂ |Â

up vote
2
down vote

You can check the on disk format version of a XFS file system with xfs_db.

Example output of an old (V4) XFS file system on my system:

xfs_db -r /dev/...
xfs_db> version
versionnum [0xb5b4+0x8a] = V4,NLINK,DIRV2,ATTR,ALIGN,DALIGN,LOGV2,EXTFLG,MOREBITS,ATTR2,LAZYSBCOUNT,PROJID32BIT

Output of a new (V5) XFS file system (created with xfsprogs version 4.9.0):

xfs_db -r /dev/...
xfs_db> version
versionnum [0xb4a5+0x18a] = V5,NLINK,DIRV2,ALIGN,LOGV2,EXTFLG,MOREBITS,ATTR2,LAZYSBCOUNT,PROJID32BIT,CRC,FTYPE,FINOBT

edited Aug 26 at 16:57

answered Aug 26 at 16:50

sebasth

6,34421643

You can check the on disk format version of a XFS file system with xfs_db.

Example output of an old (V4) XFS file system on my system:

xfs_db -r /dev/...
xfs_db> version
versionnum [0xb5b4+0x8a] = V4,NLINK,DIRV2,ATTR,ALIGN,DALIGN,LOGV2,EXTFLG,MOREBITS,ATTR2,LAZYSBCOUNT,PROJID32BIT

Output of a new (V5) XFS file system (created with xfsprogs version 4.9.0):

xfs_db -r /dev/...
xfs_db> version
versionnum [0xb4a5+0x18a] = V5,NLINK,DIRV2,ALIGN,LOGV2,EXTFLG,MOREBITS,ATTR2,LAZYSBCOUNT,PROJID32BIT,CRC,FTYPE,FINOBT

edited Aug 26 at 16:57

answered Aug 26 at 16:50

sebasth

6,34421643

edited Aug 26 at 16:57

answered Aug 26 at 16:50

sebasth

6,34421643

answered Aug 26 at 16:50

sebasth

6,34421643

answered Aug 26 at 16:50

sebasth

6,34421643

add a commentÂ |Â

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