* no rw xfs file systems in mtab: /proc/mounts
@ 2010-12-23 12:32 Honza Fikar
2010-12-23 15:02 ` Eric Sandeen
0 siblings, 1 reply; 6+ messages in thread
From: Honza Fikar @ 2010-12-23 12:32 UTC (permalink / raw)
To: xfs
Hi guys,
when I try "xfs_fsr -v -d" on my two computers, it says now:
no rw xfs file systems in mtab: /proc/mounts
while actually there is the LUKS encrypted root:
...
/dev/mapper/root / xfs
rw,noatime,attr2,inode64,logbufs=8,logbsize=256k,noquota 0 0
...
on the third computer it works as expected, there are two xfs file
systems, one of them LUKS encrypted:
...
/dev/root / xfs
rw,noatime,attr2,delaylog,inode64,logbufs=8,logbsize=256k,noquota 0 0
/dev/mapper/encrypted /home xfs
rw,noatime,attr2,delaylog,inode64,logbufs=8,logbsize=256k,sunit=512,swidth=1536,noquota
0 0
...
and it was working some time ago on all the three computers
distribution gentoo
xfsprogs 3.1.4, but I just tried git version and it's the same
kernel 2.6.32, on the third machine 2.6.35
Best regards,
Honza
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: no rw xfs file systems in mtab: /proc/mounts
2010-12-23 12:32 no rw xfs file systems in mtab: /proc/mounts Honza Fikar
@ 2010-12-23 15:02 ` Eric Sandeen
2010-12-23 17:18 ` Honza Fikar
0 siblings, 1 reply; 6+ messages in thread
From: Eric Sandeen @ 2010-12-23 15:02 UTC (permalink / raw)
To: Honza Fikar; +Cc: xfs
On 12/23/10 6:32 AM, Honza Fikar wrote:
> Hi guys,
>
> when I try "xfs_fsr -v -d" on my two computers, it says now:
>
> no rw xfs file systems in mtab: /proc/mounts
hm that's a little confusing, what it means is it looked
in /proc/mounts and did not find anything, or so it thought.
As a result of:
89e4b5bd5615edc584a5111c86f12b4f89f8dd7d xfs_fsr: use /proc/mounts if available
What does your /proc/mounts show?
-Eric
> while actually there is the LUKS encrypted root:
> ...
> /dev/mapper/root / xfs
> rw,noatime,attr2,inode64,logbufs=8,logbsize=256k,noquota 0 0
> ...
>
> on the third computer it works as expected, there are two xfs file
> systems, one of them LUKS encrypted:
> ...
> /dev/root / xfs
> rw,noatime,attr2,delaylog,inode64,logbufs=8,logbsize=256k,noquota 0 0
> /dev/mapper/encrypted /home xfs
> rw,noatime,attr2,delaylog,inode64,logbufs=8,logbsize=256k,sunit=512,swidth=1536,noquota
> 0 0
> ...
>
> and it was working some time ago on all the three computers
>
> distribution gentoo
> xfsprogs 3.1.4, but I just tried git version and it's the same
> kernel 2.6.32, on the third machine 2.6.35
>
> Best regards,
> Honza
>
> _______________________________________________
> xfs mailing list
> xfs@oss.sgi.com
> http://oss.sgi.com/mailman/listinfo/xfs
>
_______________________________________________
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: no rw xfs file systems in mtab: /proc/mounts
2010-12-23 15:02 ` Eric Sandeen
@ 2010-12-23 17:18 ` Honza Fikar
2010-12-29 13:09 ` Christoph Hellwig
0 siblings, 1 reply; 6+ messages in thread
From: Honza Fikar @ 2010-12-23 17:18 UTC (permalink / raw)
To: Eric Sandeen; +Cc: xfs
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> hm that's a little confusing, what it means is it looked
> in /proc/mounts and did not find anything, or so it thought.
I agree that it's confusing, while there are xfs mounted rw in /proc/mounts
> As a result of:
>
> 89e4b5bd5615edc584a5111c86f12b4f89f8dd7d xfs_fsr: use /proc/mounts if available
I "quickly and dirty" tried to use /etc/mtab instead, but the result is
the same. Even tried some old version (3.0.3), which uses mtab and it's
the same.
> What does your /proc/mounts show?
it shows the lines included in the original e-mail, just here it is
wrapped, i.e. for the not working case:
>> ...
>> /dev/mapper/root / xfs
>> rw,noatime,attr2,inode64,logbufs=8,logbsize=256k,noquota 0 0
>> ...
and for working case:
>> ...
>> /dev/root / xfs
>> rw,noatime,attr2,delaylog,inode64,logbufs=8,logbsize=256k,noquota 0 0
>> /dev/mapper/encrypted /home xfs
>> rw,noatime,attr2,delaylog,inode64,logbufs=8,logbsize=256k,sunit=512,swidth=1536,noquota
>> 0 0
>> ...
Honza
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: no rw xfs file systems in mtab: /proc/mounts
2010-12-23 17:18 ` Honza Fikar
@ 2010-12-29 13:09 ` Christoph Hellwig
2011-01-10 15:55 ` Honza Fikar
0 siblings, 1 reply; 6+ messages in thread
From: Christoph Hellwig @ 2010-12-29 13:09 UTC (permalink / raw)
To: Honza Fikar; +Cc: Eric Sandeen, xfs
Can you please apply the debug patch below and see what output fsr gives
with it?
Index: xfsprogs-dev/fsr/xfs_fsr.c
===================================================================
--- xfsprogs-dev.orig/fsr/xfs_fsr.c 2010-12-29 14:02:59.618003862 +0100
+++ xfsprogs-dev/fsr/xfs_fsr.c 2010-12-29 14:04:32.795004496 +0100
@@ -405,10 +405,16 @@ initallfs(char *mtab)
while ((mp = getmntent(fp))) {
int rw = 0;
- if (strcmp(mp->mnt_type, MNTTYPE_XFS ) != 0 ||
- stat64(mp->mnt_fsname, &sb) == -1 ||
- !S_ISBLK(sb.st_mode))
+ if (strcmp(mp->mnt_type, MNTTYPE_XFS ) != 0)
continue;
+ if (stat64(mp->mnt_fsname, &sb) == -1) {
+ printf("fsr: cannot stat %s\n", mp->mnt_fsname);
+ continue;
+ }
+ if (!S_ISBLK(sb.st_mode)) {
+ printf("fsr: %s is not a block device\n", mp->mnt_fsname);
+ continue;
+ }
cp = strtok(mp->mnt_opts,",");
do {
@@ -416,8 +422,7 @@ initallfs(char *mtab)
rw++;
} while ((cp = strtok(NULL, ",")) != NULL);
if (rw == 0) {
- if (dflag)
- fsrprintf(_("Skipping %s: not mounted rw\n"),
+ printf(_("Skipping %s: not mounted rw\n"),
mp->mnt_fsname);
continue;
}
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^ permalink raw reply [flat|nested] 6+ messages in thread* Re: no rw xfs file systems in mtab: /proc/mounts
2010-12-29 13:09 ` Christoph Hellwig
@ 2011-01-10 15:55 ` Honza Fikar
2011-01-10 18:50 ` Christoph Hellwig
0 siblings, 1 reply; 6+ messages in thread
From: Honza Fikar @ 2011-01-10 15:55 UTC (permalink / raw)
Cc: Eric Sandeen, xfs
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On 12/29/2010 02:09 PM, Christoph Hellwig wrote:
> Can you please apply the debug patch below and see what output fsr gives
> with it?
the output is:
#fsr/xfs_fsr -v -d
fsr: cannot stat /dev/mapper/root
no rw xfs file systems in mtab: /etc/mtab
/dev/mapper/root is really missing, even though mount shows:
/dev/mapper/root on / type xfs
(rw,noatime,attr2,inode64,logbufs=8,logbsize=256k,noquota)
maybe it gets lost during initrd?
easy and dirty fix is ln -s /dev/root /dev/mapper/root
but how to fix it for real?
Honza
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: no rw xfs file systems in mtab: /proc/mounts
2011-01-10 15:55 ` Honza Fikar
@ 2011-01-10 18:50 ` Christoph Hellwig
0 siblings, 0 replies; 6+ messages in thread
From: Christoph Hellwig @ 2011-01-10 18:50 UTC (permalink / raw)
To: Honza Fikar; +Cc: Eric Sandeen, xfs
On Mon, Jan 10, 2011 at 04:55:02PM +0100, Honza Fikar wrote:
> On 12/29/2010 02:09 PM, Christoph Hellwig wrote:
> > Can you please apply the debug patch below and see what output fsr gives
> > with it?
>
> the output is:
>
> #fsr/xfs_fsr -v -d
> fsr: cannot stat /dev/mapper/root
> no rw xfs file systems in mtab: /etc/mtab
>
> /dev/mapper/root is really missing, even though mount shows:
>
> /dev/mapper/root on / type xfs
> (rw,noatime,attr2,inode64,logbufs=8,logbsize=256k,noquota)
>
> maybe it gets lost during initrd?
>
> easy and dirty fix is ln -s /dev/root /dev/mapper/root
There's no easy way for xfs to work around the fact that a device
listed in /proc/mounts doesn't exist.
This might be a fallout of the big dm naming mess that happened due
to udev's insistance to be the only authority for device names.
I'd recommend to report a bug to your distribution about the
missing device name.
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2010-12-23 12:32 no rw xfs file systems in mtab: /proc/mounts Honza Fikar
2010-12-23 15:02 ` Eric Sandeen
2010-12-23 17:18 ` Honza Fikar
2010-12-29 13:09 ` Christoph Hellwig
2011-01-10 15:55 ` Honza Fikar
2011-01-10 18:50 ` Christoph Hellwig
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