Copy-pasted description found at mkfs.btrfs. I did not bother with
feature list as it seemed to be incomplete.
Signed-off-by: David Sterba <dsterba@suse.com>
Both man btrfs-send(8) and usage message don't describe
btrfs-send needs read-only snapshot as its argument.
Signed-off-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
btrfs-subvolume(8) is mentioned at "SEE ALSO" section of itself.
Signed-off-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
There is no petabyte in the explanation of the suffix of
the size parameter. So, it's added.
Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Asciidoc ignores special keywords like WARNING or NOTE if they're not at
the beginning of the line and they're not renedered very visibly in the
end.
Signed-off-by: David Sterba <dsterba@suse.com>
In btrfs-filesystem(8), improved the documentation of snapshot unaware
defragmentation and included the exact kernel version numbers being affected as
well as the possible effects.
No longer use the word "unlink" which is easily understood as "deleting a file".
Moved the warning more to the beginning of "defragment" subcommand's
documentation where it's more visible to readers.
Added the same warning to the "autodefrag" option of btrfs-mount(5).
Signed-off-by: Christoph Anton Mitterer <mail@christoph.anton.mitterer.name>
Add the overlapping usage and [usage_min, usage_max] members to the
balance args. The min/max values are interpreted iff the corresponding
flag BTRFS_BALANCE_ARGS_USAGE_RANGE is set.
The minimum boundary is inclusive, maximum is exclusive:
* usage_min <= chunk_usage < usage_max
Signed-off-by: David Sterba <dsterba@suse.com>
Add new balance filter 'stripes=<range>' to process only chunks that are
spread accross given number of chunks.
The range minimum and maximum are inclusive.
Signed-off-by: Gabríel Arthúr Pétursson <gabriel@system.is>
[ reworked a bit to use the range helpers, dropped the single value
for stripes ]
Signed-off-by: David Sterba <dsterba@suse.com>
Add the overlapping limit and [limit_min, limit_max] members to the
balance args. The min/max values are interpreted iff the corresponding
flag BTRFS_BALANCE_ARGS_LIMIT_RANGE is set.
The minimum and maximum are inclusive.
Note that the values are only 32bit, but this should be enough for the
foreseeable future.
Signed-off-by: David Sterba <dsterba@suse.com>
* split copies to copies and parity and add a common header for all the
raid options
* add missing RAID1
* n/a were dropped
Based on feedback from Duncan <1i5t5.duncan@cox.net>.
Signed-off-by: David Sterba <dsterba@suse.com>
Add '-s <sb_bytenr>' option to show superblock at given bytenr.
This is very useful to debug non-standard btrfs, like debuging the
1st stage btrfs of btrfs-convert.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
[ minor updates in docs ]
Signed-off-by: David Sterba <dsterba@suse.com>
When creating small Btrfs filesystem instances (i.e. filesystem size <= 1GiB),
mkfs.btrfs fails if both sectorsize and nodesize are specified on the command
line and sectorsize != nodesize, since mixed block groups involves both data
and metadata blocks sharing the same block group. This is an incorrect behavior
when '-M' option isn't specified on the command line.
This commit makes optional the creation of mixed block groups i.e. Mixed block
groups are created only when -M option is specified on the command line.
Since we now allow small filesystem instances with sectorsize != nodesize to
be created, we can end up in the following situation,
[root@localhost ~]# mkfs.btrfs -f -n 65536 /dev/loop0
btrfs-progs v3.19-rc2-405-g976307c
See http://btrfs.wiki.kernel.org for more information.
Performing full device TRIM (512.00MiB) ...
Label: (null)
UUID: 49fab72e-0c8b-466b-a3ca-d1bfe56475f0
Node size: 65536
Sector size: 4096
Filesystem size: 512.00MiB
Block group profiles:
Data: single 8.00MiB
Metadata: DUP 40.00MiB
System: DUP 12.00MiB
SSD detected: no
Incompat features: extref, skinny-metadata
Number of devices: 1
Devices:
ID SIZE PATH
1 512.00MiB /dev/loop0
[root@localhost ~]# mount /dev/loop0 /mnt/
mount: mount /dev/loop0 on /mnt failed: No space left on device
The ENOSPC occurs during the creation of the UUID tree. This is because of
things like large metadata block size, DUP mode used for metadata and global
reservation consuming space. Also, large nodesize does not make sense on small
filesystems, hence this should not be an issue.
Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Previous patch detecs inconsistency and unconditionally triggers quota
rescan. This may not be always desired as it's a heavy metadata
operation. In case of batch assignments it's better to trigger the
rescan at the end.
Signed-off-by: David Sterba <dsterba@suse.com>
Previously in 'filesystem resize get_min_size', now
'inspect-internal min-dev-size'. We'd like to avoid cluttering the
'resize' syntax further.
The test has been updated to exercise the new option.
Signed-off-by: David Sterba <dsterba@suse.com>
Currently there is not way for a user to know what is the minimum size a
device of a btrfs filesystem can be resized to. Sometimes the value of
total allocated space (sum of all allocated chunks/device extents), which
can be parsed from 'btrfs filesystem show' and 'btrfs filesystem usage',
works as the minimum size, but sometimes it does not, namely when device
extents have to relocated to holes (unallocated space) within the new
size of the device (the total allocated space sum).
This change adds the ability to reliably compute such minimum value and
extents 'btrfs filesystem resize' with the following syntax to get such
value:
btrfs filesystem resize [devid:]get_min_size
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Man manual need to be updated since RAID5/6 has been supported
by btrfs-replace.
Signed-off-by: Wang Yanfeng <wangyf-fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
There's an awkward asymmetry between btrfs device add and btrfs device
delete. Resolve this by aliasing delete to remove.
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
So far the subvol sync command takes a shortcut and looks if there are
any deleted subvols at all. It does not print the deleted subvolumes as
they get cleaned. Arguably this is what the user would like to see and
has to do
$ btrfs subvol sync /path $(btrfs subvol list -d /path | "extract the ids")
to see the progress.
Make it look for all currently deleted subvolumes automatically and
print the progress as if the ids were listed manually.
This is a slight change in the semantics of the command. Previously, any
new subvol deletion would prevent subvol sync to return. To simulate the
old behaviour, run 'subvol sync' in a loop until it returns 0.
Signed-off-by: David Sterba <dsterba@suse.cz>
Add option to silecne mkfs and print only errors, warnings or info on
user request like features or help.
Based on patch from Goffredo Baroncelli <kreijack@inwind.it>
Signed-off-by: David Sterba <dsterba@suse.cz>
In a chroot environment we may not have /proc mounted, which makes btrfs receive
freak out since it wants to know the base directory where are are mounted for
things like clone and such. Give an option to specify where the mountpoint is
in these cases so you can still do a btrfs receive in a chroot. Thanks,
Signed-off-by: Josef Bacik <jbacik@fb.com>
[added manpage documentation]
Signed-off-by: David Sterba <dsterba@suse.cz>
This patch forces btrfs receive to issue chroot before
parsing the btrfs stream using command-line flag -C
to confine the process and minimize damage that could
be done via malicious btrfs stream.
Signed-off-by: Lauri Võsandi <lauri.vosandi@gmail.com>
[added long option variant, added docs]
Signed-off-by: David Sterba <dsterba@suse.cz>
Copy the functionality of standalone btrfs-zero-log to the main tool.
Delete man page for btrfs-zero-log and copy the relevant parts into
btrfs-rescue(8). The standalone utility will be removed later.
Signed-off-by: David Sterba <dsterba@suse.cz>
Resize of a filesystem image does not work as expected. This has been
confusing and can have bad consequences as people have reported,
resizing the wrong filesystem.
Signed-off-by: David Sterba <dsterba@suse.cz>
A few minor benefits:
* editors set highliting according to the extensions
* web access to the git repository (github) renders the .asciidoc
files:
* we can link to them from the wiki
* the files are editable via browser and such editations can be
submitted for merge easily
Signed-off-by: David Sterba <dsterba@suse.cz>
Although btrfs-convert can rollback converted btrfs, it still has some
limitation to ensure rollback.
Add a warning on the limitations.
Also add a note for users who decides to go on with btrfs and don't need
the rollback ability.
Reported-by: Vytautas D <vytdau@gmail.com>
Reported-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
We provided format <path>|<device> in command line.
But btrfs device stats doesn't work if device is not mounted.
Also fix some tailing whitespace.
Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Allow btrfs-convert to use nodesizes other than 4096. It defaults to
max(16384, pagesize), like mkfs.
Signed-off-by: Sebastian Thorarensen <sebth@naju.se>
Signed-off-by: David Sterba <dsterba@suse.cz>
With progress turned on by default we should be able to disable it
as well.
Reported-by: Jérôme Poulin <jeromepoulin@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Agreed by several people, showing progress by default makes sense as
conversion is a one-time and long running action.
Signed-off-by: David Sterba <dsterba@suse.cz>
Add option '-a' for btrfs-find-root to iterate all the metadata extents
even the root is already found.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
$ make clean-doc
Cleaning Documentation
/usr/bin/rm: cannot remove ‘*.xml’: No such file or directory
/usr/bin/rm: cannot remove ‘*.xml+’: No such file or directory
/usr/bin/rm: cannot remove ‘*.5’: No such file or directory
/usr/bin/rm: cannot remove ‘*.8’: No such file or directory
make[1]: *** [clean] Error 1
make: *** [clean-doc] Error 2
The RM variable from parent makefile lacks -f, add it where it's
missing.
Minor change in LN_S variable name, same -f change.
Signed-off-by: David Sterba <dsterba@suse.cz>
Based on a user report, 'max' in help does not clearly point to the
limits that are commonly used as a quota-related term.
Signed-off-by: David Sterba <dsterba@suse.cz>
Add an alias to -h to 'filesystem usage', 'filesystem df' and
'device usage' commands, same as the traditional 'df'.
Signed-off-by: David Sterba <dsterba@suse.cz>
Add explain on 'source' and 'target', which is somewhat confusing for
users who want to restore dumped image.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
[reworded texts]
Signed-off-by: David Sterba <dsterba@suse.cz>
Now we can use -f with -S option when setting seeding flags or clearing
seeding flags
Reported-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
Signed-off-by: Fan Chengniang <fancn.fnst@cn.fujitsu.com>
[updated docs]
Signed-off-by: David Sterba <dsterba@suse.cz>
btrfs qgroup limit has two options -c and -e,. They were forgotten to add
to manpage.
Signed-off-by: Fan Chengniang <fancn.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Current 'man btrfs-replace' is as follows:
========================================================================
...
...
-f
force using and overwriting <targetdev> even if it looks like
containing a valid btrfs filesystem.
A valid filesystem is assumed if a btrfs superblock is found
which contains a correct checksum. Devices which are currently
mounted are never allowed to be used as the <targetdev>. -B::::
no background replace.
...
...
========================================================================
The format of 'B' option is wrong. So, fix it.
Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Fixes various formatting issues:
Fixes quoting issues in various manpages. Before/After excerpts for
mkfs.btrfs(8), btrfs-qgroup(8):
mkfs.btrfs [-A|--alloc-start '<alloc-start>']
mkfs.btrfs [-A|--alloc-start <alloc-start>]
id 0/<subvolume id>''
id 0/<subvolume id>
If multiple '<attr>'s is given, use comma to separate.
If multiple <attr>s is given, use comma to separate.
The one that is most apparent is the removal of text in
btrfs-subvolume(8) and others. Before/After:
list [options] [-G <value>] [-C <value>] [--sort=rootid,gen,ogen,path] <path>
list [options] [-G [+|-]<value>] [-C [+|-]<value>] [--sort=rootid,gen,ogen,path] <path>
create [-i <qgroupid>] <name>
create [-i <qgroupid>] [<dest>]<name>
This happens because `<foo>` was replaced by `'<foo>'` in the sed
expression, which is then treated as a constrained quote. As a result,
the `[...]` before the string gets interpreted as "quoted text
attributes".
In this patch, the sed expression is dropped and asciidoc is configured
to recognize `<...>` as a unconstrained quoted string (such that
`<attr>s` is correctly emphasized) and to avoid adding quotes in
contexts where it is not needed.
A remaining problem is that some texts (the one between brackets) do not
add the emphasis for `<...>`. While this could be solved by replacing
`[` and `]` with `[` and `]` using sed, it introduces formatting
problems in btrfs-zero-log(8) because the context is ignored.
Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Signed-off-by: David Sterba <dsterba@suse.cz>
The format of 'l' option in mkfs.btrfs.txt is wrong.
And, when the head of the character string is 65536, the following warning
is displayed.
$ make
Making all in Documentation
[ASCII] mkfs.btrfs.xml
asciidoc: WARNING: mkfs.btrfs.xml.tmp1: line 67: list item index: expected 1 got 65536
[XMLTO] mkfs.btrfs.8
[GZ] mkfs.btrfs.8.gz
rm mkfs.btrfs.8 mkfs.btrfs.xml
So, fix it.
Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Escape the first quote of two to cancel effects of ordinary '...' .
Reported-by: Chris Murphy <lists@colorremedies.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Enhance the document of btrfs property as follows.
- Add the description about the candidates of <name>.
- Enrich the description of <object>.
- Fix typos and some redundancy.
Signed-off-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Reported-by: Naohiro Aota <naota@elisp.net>
Signed-off-by: David Sterba <dsterba@suse.cz>
As Chris reported at the following mail, although
btrfs property has its own manpage, man 8 btrfs-property,
there is no explanation about it in man 8 btrfs.
https://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg40134.html
Signed-off-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Reported-by: Chris Murphy <lists@colorremedies.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
The following commit changed the argument requirement for
'--subvol-extents', which causes it to call arg_strtou64() on NULL,
resulting a segfault.
d34cbe76 btrfs-progs: check: do not require argument for --subvol-extents
This patch revert the patch and change the help string and man page to
make it no longer confusing.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
The size unit format is a longstanding annoyance. This patch is based on
the work of Nils and Alexandre and enhances the options. It's possible
to select raw bytes, SI-based or IEC-based compact units (human
frientdly) or a fixed base from kilobytes to terabytes. The default is
compact human readable IEC-based, no change to current version.
CC: Nils Steinger <nst@voidptr.de>
CC: Alexandre Oliva <oliva@gnu.org>
Reviewed-by: Hugo Mills <hugo@carfax.org.uk>
Signed-off-by: David Sterba <dsterba@suse.cz>
Enhance the 'subvolume' subcommand to wait until a given list of
subvolumes or all currently scheduled for deletion are cleaned
completely from the filesystem.
Signed-off-by: David Sterba <dsterba@suse.cz>
The new option -f will force to do dangerous changes.
e.g. clear the seeding flag.
Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
[more text from 3db4c0a3d3 changelog]
Signed-off-by: David Sterba <dsterba@suse.cz>
There are many trivial typos in Documentation/*.txt.
All of these use "exist status" to mean "exit status"
by mistake. I guess someone first made this mistake
and it has spread by copy-and-paste :-D
Signed-off-by: Naohiro Aota <naota@elisp.net>
Signed-off-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
man 8 btrfs-property refers to `setattr(8)` which does not actually exist.
It should refer to `chattr (1)` instead.
Signed-off-by: Naohiro Aota <naota@elisp.net>
Reviewed-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
When using send/receive, it it useful to be able to match up source
subvols on the send side (as, say, for -p or -c clone sources) with their
corresponding copies on the receive side. This patch adds a -R option to
btrfs sub list to show the received subvolume UUID on the receive side,
allowing the user to perform that matching correctly.
Signed-off-by: Hugo Mills <hugo@carfax.org.uk>
Signed-off-by: David Sterba <dsterba@suse.cz>
Fix the lack of description of "--max-erros" option in
both man and command usage of btrfs receive.
Signed-off-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
>From:
http://man7.org/linux/man-pages/man7/man-pages.7.html
...
AUTHORS lists authors of the documentation or program.Use of
an AUTHORS section is strongly discouraged. Generally,
it is better not to clutter every page with a list of
(over time potentially numerous) authors; if you write
or significantly amend a page, add a copyright notice
as a comment in the source file. If you are the author
of a device driver and want to include an address for
reporting bugs, place this under the BUGS section.
...
Suggested-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
'btrfs filesystem defrag' has an option '-t', whose manpage says
"Any extent bigger than threshold given by -t option, will be
considered already defragged. Use 0 to take the kernel default, and
use 1 to say every single extent must be rewritten."
Here 'use 0' still works, it refers to the default value(256K), however,
'use 1' is an obvious typo, it should be -1, which means the largest value
it can be.
Right now, we use parse_size() which no more allow value '-1', so in
order to keep the manpage correct, this updates it to only keep value '0'.
If you want to make sure every single extent is rewritten, please use a fairly
large size, say 1G.
Reported-by: Sebastian Ochmann <ochmann@informatik.uni-bonn.de>
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
The -f option of scrub means to
"force starting new scrub even if a scrub is already running"
*not*
"force to check whether scrub has started or resumed in userspace"
as described originally.
So replace the orignal description in the manpage and code.
Also, add description of the potential failure as follows
"If a scrub is already running, it fails."
Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Cc: David Sterba <dsterba@suse.cz>
Signed-off-by: David Sterba <dsterba@suse.cz>
After the discussion in
http://thread.gmane.org/gmane.comp.file-systems.btrfs/36334
the 'X' will be mentioned in the manpage because new e2fsprogs/lsattr
will display it and represents the NOCOMPRESS bit of an inode.
Signed-off-by: David Sterba <dsterba@suse.cz>
The chattr(1) manpage suffers from the same problems mount(1)
had: many options listed, not kept up to date for various
filesystems.
I've submitted a manpage update for chattr(1) which says to
refer to filesystem-specific manpages for supported attributes;
this patch updates btrfs(5) to list the attributes supported
by btrfs.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
[added some asciidoc markups, adjusted formatting]
Signed-off-by: David Sterba <dsterba@suse.cz>
The btrfs-image support multiple devices with -m specified.
Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Add some missing options, also improve some confusing
expressions.
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
This is a straight cut and paste from the util-linux
mount manpage into btrfs-mount.5
It's pretty much impossible for util-linux to keep up
with every filesystem out there, and Karel has more than
once expressed a wish that mount options move into fs-specific
manpages.
So, here we go.
The way btrfs asciidoc is generated, there's not a trivial
way to have both btrfs(5) and btrfs(8) so I named it btrfs-mount(5)
for now. A bit ick and I'm open to suggestions.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
This is the most important patch ever. ;)
I found this to be less aesthetically pleasing than it was before:
[CC] btrfstune.o
Making all in Documentation
ASCIIDOC btrfs-convert.xml
[LD] btrfstune
XMLTO btrfs-convert.8
[CC] btrfs-show-super.o
GZIP btrfs-convert.8.gz
[LD] btrfs-show-super
ASCIIDOC btrfs-debug-tree.xml
XMLTO btrfs-debug-tree.8
so I shortened the pretty-text to match what we had before.
Also, make clean "quiet" like it is in the top dir.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
[Changed to ASCII and XMLTO]
Signed-off-by: David Sterba <dsterba@suse.cz>
Man page for 'btrfs-balance' mentioned <filters> but does not explain
them, which make end users hard to use '-d', '-m' or '-s options.
This patch will use the explanations from
https://btrfs.wiki.kernel.org/index.php/Balance_Filters to enrich the
man page.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Add '-f' option for btrfs-show-super manpage,
This option implies that sys chunk array and backup roots info
will show up.
Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
This patch adds an option '--check-data-csum' to verify data checksums.
fsck won't check data csums unless users specify this option explictly.
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Due to either bugs in send (kernel) that generate a command against
a wrong path for example, or transient errors on the receiving side,
we stopped processing the send stream immediately and exited with
an error.
It's often desirable to continue processing the send stream even if an
error happens while processing a single command from the send stream.
This change just adds a --max-errors <N> parameter, whose default value
is 1 (preserving current behaviour), that allows to tolerate N errors
before stopping. A value of 0 means to never stop no matter how many
errors we get into while processing the send stream. Regardless of its
value, errors are always printed to stderr when they happen, just like
before this change.
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Allow the specification of the filesystem UUID at mkfs time.
Non-unique unique IDs are rejected. This includes attempting
to re-mkfs with the same UUID; if you really want to do that,
you can mkfs with a new UUID, then re-mkfs with the one you
wanted.
(Implemented only for mkfs.btrfs, not btrfs-convert).
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
[converted help to asciidoc]
Signed-off-by: David Sterba <dsterba@suse.cz>
The btrfstune -S option accepts a positive value to enable seeding,
and a zero to disable seeding, negtive is not allowed.
Add "positive, zero, negative" sentences to btrfstune manpage.
Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Fedora had a bug where a poor user thought that --alloc-start
meant that the filesystem would be created at that offset into
the device, rather than just starting allocations at that offset.
A subtle difference, but worth clarifying, because the manpage
is misleading on this point.
The original commit log for this option says:
Add mkfs.btrfs -A offset to control allocation start on devices
This is a utility option for the resizer, it makes sure to allocate
at offset bytes in the disk or higher. It ensures the resizer will have
something to move when testing it.
so allude to that intended use in the manpage.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
[converted to asciidoc]
Signed-off-by: David Sterba <dsterba@suse.cz>
The manpage of btrfsck.8 is supposed to link to btrfs-check.8 .
Reported-by: WorMzy Tykashi <wormzy.tykashi@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
man pages for btrfs-progs are compressed by gzip by default. In Makefile
the variable GZIP is use, this evaluates to 'gzip gzip' on my system.
>From man gzip:
> The environment variable GZIP can hold a set of default options for
> gzip. These options are interpreted first and can be overwritten by
> explicit command line parameters.
So using any other variable name fixes this.
Signed-off-by: Christian Hesse <mail@eworm.de>
Signed-off-by: David Sterba <dsterba@suse.cz>
If we point btrfs-show-super at a not-btrfs-device and
try to print all superblocks, bad things are apt to happen:
superblock: bytenr=274877906944, device=/dev/sdc2
---------------------------------------------------------
btrfs-show-super: ctree.h:1984: btrfs_super_csum_size: \
Assertion `!(t >= (sizeof(btrfs_csum_sizes) / sizeof((btrfs_csum_sizes)[0])))' failed.
csum 0xAborted
Don't try to print superblocks that don't look like superblocks,
and add an "-f" (force) option to try anyway, if the user
really wants to give it a shot.
Fix some spelling & capitalization while we're at it.
The manpage says that if any problem happens, 1 will
be returned, but that's already not true today LOL, so
I didn't bother to make it true when we detect bad
sb magic, either...
I figure it's worth continuing and trying all superblocks
in case just one has a corrupt magic.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
[renamed -f to -F due to clash with existing option, converted
relevant docs to asciidoc]
Signed-off-by: David Sterba <dsterba@suse.cz>
The asciidoc conversion was done on a development branch and there are
portions of text that do not reflect the code.
Signed-off-by: David Sterba <dsterba@suse.cz>
The 'btrfsck' command has been deprecated in favor of 'btrfs check'. For
compatibility install a symlink to the btrfs-check.8 manpage.
Signed-off-by: David Sterba <dsterba@suse.cz>
Add btrfs wiki page reference to btrfs-check/btrfsck, btrfs-restore and
btrfs-device as supplement.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Convert the man page for the newly added btrfs-property subcommand.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Convert man page for btrfs-restore, which I forgot to convert in the
previous patchset. :P
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Add more explain on btrfs-zero-log about when to use it.
Reviewed-by: Marc MERLIN <marc@merlins.org>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Convert and enhance the man page of btrfs-qgroup.
The original man page for btrfs-qgroup subcommand is almost useless for
new user(like me), so adds more information on it.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
The old man page of btrfs will grow larger with new functions adding to
btrfs-progs and harder to maintain because the reader-unfriendly roff
grammar and one LARGE btrfs.in.
This patch will introduce the simplified Documentation directory mainly
'stolen' from git and include the first man page for 'btrfs(8)'.
This time, man page will be written in human-friendly asciidoc grammar
and each commands of btrfs will have a separate man page, which I hope
can reduce the effort to maintain the man page.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
