[gentoo-user] df showing rootfs

[gentoo-user] df showing rootfs

[Willie Wong]

Having just upgraded to baselayout2 and openrc, I found that when I
run df, I get

Filesystem           1K-blocks      Used Available Use% Mounted on
rootfs                 8008068   6827336   1180732  86% /
/dev/root              8008068   6827336   1180732  86% /
udev                     10240        88     10152   1% /dev
none                    257012         0    257012   0% /dev/shm
rc-svcdir                 1024        56       968   6% /lib/rc/init.d
/dev/hda6               401572    139560    262012  35% /var
/dev/hda7             29735368  28433384   1301984  96% /home

Note the first two lines are identical. Is this the way it is 
supposed to be? Or did I miss a configuration variable somewhere
when I etc-update'd?

Thanks, 

Willie
-- 
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Re: [gentoo-user] df showing rootfs

[Paul Colquhoun]

On Sat, 10 May 2008, Willie Wong wrote:
> Having just upgraded to baselayout2 and openrc, I found that when I
> run df, I get
> 
> Filesystem           1K-blocks      Used Available Use% Mounted on
> rootfs                 8008068   6827336   1180732  86% /
> /dev/root              8008068   6827336   1180732  86% /
> udev                     10240        88     10152   1% /dev
> none                    257012         0    257012   0% /dev/shm
> rc-svcdir                 1024        56       968   6% /lib/rc/init.d
> /dev/hda6               401572    139560    262012  35% /var
> /dev/hda7             29735368  28433384   1301984  96% /home
> 
> Note the first two lines are identical. Is this the way it is 
> supposed to be? Or did I miss a configuration variable somewhere
> when I etc-update'd?


Just to let you know you are not alone.


$ uname -a
Linux tux 2.6.24-gentoo-r2 #1 SMP PREEMPT Tue Feb 12 18:54:03 EST 2008 
x86_64 AMD Athlon(tm) 64 X2 Dual Core Processor 4400+ AuthenticAMD 
GNU/Linux


$ df -k
Filesystem           1K-blocks      Used Available Use% Mounted on
rootfs                10008136   1208624   8799512  13% /
/dev/sda3             10008136   1208624   8799512  13% /
udev                     10240       200     10040   2% /dev
shm                    1029084         0   1029084   0% /dev/shm
rc-svcdir                 1024        88       936   9% /lib64/rc/init.d
/dev/sda5             10008136    412576   9595560   5% /var
/dev/sda6             10008136   6799800   3208336  68% /usr
/dev/sda7            166998544    851032 166147512   1% /data
/dev/sdb2              7816780   1789648   6027132  23% /var/spool/news
/dev/sdb3             39068880  27590744  11478136  71% /usr/portage
/dev/sdb4            146508292 127278184  19230108  87% /home
/dev/mapper/vg00-backup
                     398266496 338484192  59782304  85% /backup



-- 
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Re: [gentoo-user] df showing rootfs

[Justin]

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Paul Colquhoun schrieb:
> On Sat, 10 May 2008, Willie Wong wrote:
>   
>> Having just upgraded to baselayout2 and openrc, I found that when I
>> run df, I get
>>
>> Filesystem           1K-blocks      Used Available Use% Mounted on
>> rootfs                 8008068   6827336   1180732  86% /
>> /dev/root              8008068   6827336   1180732  86% /
>> udev                     10240        88     10152   1% /dev
>> none                    257012         0    257012   0% /dev/shm
>> rc-svcdir                 1024        56       968   6% /lib/rc/init.d
>> /dev/hda6               401572    139560    262012  35% /var
>> /dev/hda7             29735368  28433384   1301984  96% /home
>>
>> Note the first two lines are identical. Is this the way it is 
>> supposed to be? Or did I miss a configuration variable somewhere
>> when I etc-update'd?
>>     
>
>
> Just to let you know you are not alone.
>
>
> $ uname -a
> Linux tux 2.6.24-gentoo-r2 #1 SMP PREEMPT Tue Feb 12 18:54:03 EST 2008 
> x86_64 AMD Athlon(tm) 64 X2 Dual Core Processor 4400+ AuthenticAMD 
> GNU/Linux
>
>
> $ df -k
> Filesystem           1K-blocks      Used Available Use% Mounted on
> rootfs                10008136   1208624   8799512  13% /
> /dev/sda3             10008136   1208624   8799512  13% /
> udev                     10240       200     10040   2% /dev
> shm                    1029084         0   1029084   0% /dev/shm
> rc-svcdir                 1024        88       936   9% /lib64/rc/init.d
> /dev/sda5             10008136    412576   9595560   5% /var
> /dev/sda6             10008136   6799800   3208336  68% /usr
> /dev/sda7            166998544    851032 166147512   1% /data
> /dev/sdb2              7816780   1789648   6027132  23% /var/spool/news
> /dev/sdb3             39068880  27590744  11478136  71% /usr/portage
> /dev/sdb4            146508292 127278184  19230108  87% /home
> /dev/mapper/vg00-backup
>                      398266496 338484192  59782304  85% /backup
>
>
>
>   
For me it is the same. Could it be that this is new in the new coreutils?


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Re: [gentoo-user] df showing rootfs

[Graham Murray]

Justin <justin@j-schmitz.net> writes:

> For me it is the same. Could it be that this is new in the new coreutils?

For me it started after the upgrade from baselayout-1 to baselayout-2.
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Re: [gentoo-user] df showing rootfs

[Willie Wong]

On Sun, May 11, 2008 at 02:18:47PM +0100, Penguin Lover Graham Murray squawked:
> For me it started after the upgrade from baselayout-1 to baselayout-2.

Same here. 

W
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because he has fur
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Re: [gentoo-user] df showing rootfs

[Dirk Heinrichs]

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Am Sonntag, 11. Mai 2008 schrieb Graham Murray:
> Justin <justin@j-schmitz.net> writes:
> > For me it is the same. Could it be that this is new in the new coreutils?
>
> For me it started after the upgrade from baselayout-1 to baselayout-2.

Interesting. I never saw it look different. What's the problem?

Bye...

	Dirk

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Re: [gentoo-user] df showing rootfs

[Daniel Iliev]

On Fri, 9 May 2008 15:43:35 -0400
Willie Wong <wwong@Princeton.EDU> wrote:

> Having just upgraded to baselayout2 and openrc, I found that when I
> run df, I get
> 
> Filesystem           1K-blocks      Used Available Use% Mounted on
> rootfs                 8008068   6827336   1180732  86% /
> /dev/root              8008068   6827336   1180732  86% /
> udev                     10240        88     10152   1% /dev
> none                    257012         0    257012   0% /dev/shm
> rc-svcdir                 1024        56       968   6% /lib/rc/init.d
> /dev/hda6               401572    139560    262012  35% /var
> /dev/hda7             29735368  28433384   1301984  96% /home
> 
> Note the first two lines are identical. Is this the way it is 
> supposed to be? Or did I miss a configuration variable somewhere
> when I etc-update'd?
> 
> Thanks, 
> 
> Willie

Are you, guys, doing some funky remounts like switch_root or
pivot_root (perhaps in initrd or initfs)?

On a "normal" system I get:
==
localhost ~ # uname -r
2.6.24-gentoo-r4
localhost ~ # df -h | head -n2
Filesystem            Size  Used Avail Use% Mounted on
/dev/hda1             6,6G  4,8G  1,8G  74% /
==

On a system with initfs, where I do "switch_root" because of "root on
lvm2" case I get:
==
localhost ~ # uname -r
2.6.24-gentoo-r4-acpi
localhost ~ # df -h | head -2
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg1-root  485M  446M   40M  92% /
==


-- 
Best regards,
Daniel
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Re: [gentoo-user] df showing rootfs

[Alan McKinnon]

On Sunday 11 May 2008, Daniel Iliev wrote:
> > Filesystem           1K-blocks      Used Available Use% Mounted on
> > rootfs                 8008068   6827336   1180732  86% /
> > /dev/root              8008068   6827336   1180732  86% /
> > udev                     10240        88     10152   1% /dev
> > none                    257012         0    257012   0% /dev/shm
> > rc-svcdir                 1024        56       968   6%
> > /lib/rc/init.d /dev/hda6               401572    139560    262012
> >  35% /var /dev/hda7             29735368  28433384   1301984  96%
> > /home
> >
> > Note the first two lines are identical. Is this the way it is
> > supposed to be? Or did I miss a configuration variable somewhere
> > when I etc-update'd?
> >
> > Thanks,
> >
> > Willie
>
> Are you, guys, doing some funky remounts like switch_root or
> pivot_root (perhaps in initrd or initfs)?

No, I get it too since the upgrade to baselayout-2

I have a small / partition, everything else on lvm, drivers needed at 
kernel load time compiled in, no initrd

-- 
Alan McKinnon
alan dot mckinnon at gmail dot com

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Re: [gentoo-user] df showing rootfs

[Willie Wong]

On Sun, May 11, 2008 at 10:44:39PM +0300, Penguin Lover Daniel Iliev squawked:
> On Fri, 9 May 2008 15:43:35 -0400
> Willie Wong <wwong@Princeton.EDU> wrote:
> 
> > Having just upgraded to baselayout2 and openrc, I found that when I
> > run df, I get
> > 
> > Filesystem           1K-blocks      Used Available Use% Mounted on
> > rootfs                 8008068   6827336   1180732  86% /
> > /dev/root              8008068   6827336   1180732  86% /
> > udev                     10240        88     10152   1% /dev
> > none                    257012         0    257012   0% /dev/shm
> > rc-svcdir                 1024        56       968   6% /lib/rc/init.d
> > /dev/hda6               401572    139560    262012  35% /var
> > /dev/hda7             29735368  28433384   1301984  96% /home
> > 
> > Note the first two lines are identical. Is this the way it is 
> > supposed to be? Or did I miss a configuration variable somewhere
> > when I etc-update'd?
> > 
> > Thanks, 
> > 
> > Willie
> 
> Are you, guys, doing some funky remounts like switch_root or
> pivot_root (perhaps in initrd or initfs)?
> 

Not that I know of. I am definitely not using initfs or initrd. Don't
know about switch_root or pivot_root (where would those come up?)

I am curious why it reads "rootfs" and "/dev/root" in the output of df
instead of "/dev/hda2" as I have it in my /etc/fstab, and why there
are two entries. 

W
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Re: [gentoo-user] df showing rootfs

[Daniel Iliev]

On Sun, 11 May 2008 21:59:35 +0200
Alan McKinnon <alan.mckinnon@gmail.com> wrote:

> On Sunday 11 May 2008, Daniel Iliev wrote:
> > Are you, guys, doing some funky remounts like switch_root or
> > pivot_root (perhaps in initrd or initfs)?
> 
> No, I get it too since the upgrade to baselayout-2
> 
> I have a small / partition, everything else on lvm, drivers needed at 
> kernel load time compiled in, no initrd
> 

I downloaded openrc + baselayout-2 and did some digging on the
decompressed files, but didn't find anything "strange". Just the
opposite - at first glance the new scripts dealing with the root fs
appear to be not as complex as those in baselayout-1. The only thing,
which I could put a note on, was that baselayout-2 provides a
new /etc/fstab file. 

So, please, check what your /etc/fstab reads about "/" in case you have
accidentally overwritten it by answering "yes" to etc-update or
dispatch-conf.


-- 
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Daniel
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Re: [gentoo-user] df showing rootfs

[Daniel Iliev]

On Sun, 11 May 2008 17:35:10 -0400
Willie Wong <wwong@Princeton.EDU> wrote:

> On Sun, May 11, 2008 at 10:44:39PM +0300, Penguin Lover Daniel Iliev
> squawked:
> > Are you, guys, doing some funky remounts like switch_root or
> > pivot_root (perhaps in initrd or initfs)?
> > 
> 
> Not that I know of. I am definitely not using initfs or initrd. Don't
> know about switch_root or pivot_root (where would those come up?)

[START OT]
Think of those as of one-file images of a very basic GNU/Linux system,
which are used when you need to do some things before mounting
the "real" root FS. The kernel extracts those images in the RAM as
root file system executes the commands they contain After this "basic"
system has finished its job you need to switch to the "real" system by
mounting the "real" root and executing the "real" /sbin/init. Then you
use "switch_root" or "pivot_root" to tell the kernel to drop the root fs
from the RAM and start working with the "real" root fs.
[END OT]

> 
> I am curious why it reads "rootfs" and "/dev/root" in the output of df
> instead of "/dev/hda2" as I have it in my /etc/fstab, and why there
> are two entries. 
> 
> W


Alright. Perhaps "man libblkid".

Which leads me to one *really wild* guess after which I'm out of
ideas. Try refreshing your block device identification cache by:

rm /etc/blkid.tab* && blkid



P.S.

"On Sun, May 11, 2008 at 10:44:39PM +0300, Penguin Lover Daniel Iliev
squawked: ..."    <-- *ROFL* !




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Daniel
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Re: [gentoo-user] df showing rootfs

[Neil Bothwick]

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On Mon, 12 May 2008 01:05:56 +0300, Daniel Iliev wrote:

> So, please, check what your /etc/fstab reads about "/" in case you have
> accidentally overwritten it by answering "yes" to etc-update or
> dispatch-conf.

That's not it. I also get the two odd entries for / with no change to
fstab. /dev/root is a symlink to the actual block device, with no obvious
culprit in the udev rules.


-- 
Neil Bothwick

"We demand rigidly defined areas of doubt and uncertainty!"

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Re: [gentoo-user] df showing rootfs

[Dirk Heinrichs]

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Am Montag, 12. Mai 2008 schrieb Daniel Iliev:

> Try refreshing your block device identification cache by:
>
> rm /etc/blkid.tab*

I don't have those files, although I see the rootfs line in df output. But 
again: Why would I care? What's the problem?

Bye...

	Dirk

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Re: [gentoo-user] df showing rootfs

[Etaoin Shrdlu]

On Monday 12 May 2008, 00:41, Daniel Iliev wrote:

> > I am curious why it reads "rootfs" and "/dev/root" in the output of
> > df instead of "/dev/hda2" as I have it in my /etc/fstab, and why
> > there are two entries.
> >
> > W
>
> Alright. Perhaps "man libblkid".
>
> Which leads me to one *really wild* guess after which I'm out of
> ideas. Try refreshing your block device identification cache by:
>
> rm /etc/blkid.tab* && blkid

FWIW, I've always seen those entries (or something quite similar) 
in /proc/mounts (for a long time), but never in the output of df.

$ cat /proc/mounts
rootfs / rootfs rw 0 0
/dev/root / reiserfs rw,noatime 0 0
proc /proc proc rw,nosuid,nodev,noexec 0 0
sysfs /sys sysfs rw,nosuid,nodev,noexec 0 0
udev /dev tmpfs rw,nosuid 0 0
devpts /dev/pts devpts rw,nosuid,noexec 0 0
/dev/sda7 /home ext3 rw,noatime,data=ordered 0 0
none /dev/shm tmpfs rw 0 0
none /proc/bus/usb usbfs rw 0 0

$ df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda8             18899832   6396036  12503796  34% /
udev                     10240       100     10140   1% /dev
/dev/sda7             96124904  74332380  16909572  82% /home
none                   1037040         0   1037040   0% /dev/shm

(I haven't switched to baselayout-2 yet). That said, I have no idea why 
the output of df under baselayout-2 differs (although I assume that the 
rc-svcdir thing is somehow related to baselayout-2 or openrc).
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Re: [gentoo-user] df showing rootfs

[Miika Linnapuomi]

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Sun, 11 May 2008 23:53:19 +0100
Neil Bothwick <neil@digimed.co.uk> wrote:

> On Mon, 12 May 2008 01:05:56 +0300, Daniel Iliev wrote:
> 
> > So, please, check what your /etc/fstab reads about "/" in case you
> > have accidentally overwritten it by answering "yes" to etc-update or
> > dispatch-conf.
> 
> That's not it. I also get the two odd entries for / with no change to
> fstab. /dev/root is a symlink to the actual block device, with no
> obvious culprit in the udev rules.
> 
> 

Actually its relatively obvious, but its a 'dynamic' rule
in /lib/udev/write_root_link_rule, that
creates /dev/.udev/rules.d/10-root-link.rules

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Re: [gentoo-user] df showing rootfs

[Etaoin Shrdlu]

On Tuesday 13 May 2008, 20:56, Miika Linnapuomi wrote:

> Actually its relatively obvious, but its a 'dynamic' rule
> in /lib/udev/write_root_link_rule, that
> creates /dev/.udev/rules.d/10-root-link.rules

Yes I have that, and I even have the /dev/root device. However, df does 
not show rootfs or /dev/root in its output (while on baselayout-2 
systems it does).
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