Hello 
I used to know what was the disk use by “df -h”. But right now it’s no more really informative. Specially, df do not anymore list root (/) but a virtual rootfs!
I not always trust /etc/fstab (in case grub was launched manually)
thanks
jdd
-
*df *is for showing the size of filesystems and how much of it is used. While it also shows some other information (lik the partition if that is applicable), df is not about which partition is mounted where.
-
when you have superfluous lines in the output, you can pipe it through grep to get rid of them. In this case
df -h | grep '/dev/sd'
will give you what I think you want.
- when you want to now about what is mounted where and with what parameters you use
mount
-
I do not quite understand waht you mean with “I not always trust /etc/fstab (in case grub was launched manually)”.* /etc/fstab* is mainly the configuration file about what must be mounted by the system at boot time. As configuration file it does not show you the present situation of what is mounted, but only what should be done at predefined moments in time. I fail to see how GRUB enters this story.
-
It is still not clear to me if you want any help with anything. There is not even a ? anywhere in your post. But I hope I have given you some information on the use of the tools you mentioned (and reading their man pages is also very useful).
thanks.
I have several distros on the same disk, so fdisk -l don’t says wich one is booted.
11.1 df said (other disk):
df -h
Sys. de fich. Tail. Occ. Disp. %Occ. Monté sur
/dev/hda1 20G 2,1G 17G 12% /
udev 484M 80K 484M 1% /dev
/dev/hda6 20G 10G 8,3G 55% /home
/dev/hda7 20G 33M 19G 1% /extra
/dev/hda8 170G 24G 138G 15% /data
/dev/shm 484M 24K 484M 1% /dev/shm
11.4 one say
Filesystem Size Used Avail Use% Mounted on
rootfs 10G 4,7G 4,8G 50% /
/dev/root 10G 4,7G 4,8G 50% /
devtmpfs 983M 268K 983M 1% /dev
tmpfs 983M 0 983M 0% /dev/shm
/dev/sda2 50G 11G 37G 24% /home
/dev/sda6 838G 52G 744G 7% /data
and I don’t know what root is mounted (/home and /data are the same)
I simply wondered if there is an option to have the old display. mount gives exactly the same info.
and I just noticed that /dev/root do not exists 
finally, I have a mounted file system and it’s not listed antwhere?? (my root is /dev/sda1)
fstab is::
/dev/sda1 / ext4 errors=remount-ro 0 1
/dev/sda2 /home ext4 defaults 0 2
/dev/sda3 none swap defaults 0 0
so one can guess root is /dev/sda1, but it’s not true if the boot is not standard
thanks
jdd
On 06/09/2011 09:06 AM, jdd wrote:
>
> thanks.
>
> I have several distros on the same disk, so fdisk -l don’t says wich
> one is booted.
>
> 11.1 df said (other disk):
>
> df -h
> Sys. de fich. Tail. Occ. Disp. %Occ. Mont� sur
> /dev/hda1 20G 2,1G 17G 12% /
> udev 484M 80K 484M 1% /dev
> /dev/hda6 20G 10G 8,3G 55% /home
> /dev/hda7 20G 33M 19G 1% /extra
> /dev/hda8 170G 24G 138G 15% /data
> /dev/shm 484M 24K 484M 1% /dev/shm
>
> 11.4 one say
>
> Filesystem Size Used Avail Use% Mounted on
> rootfs 10G 4,7G 4,8G 50% /
> /dev/root 10G 4,7G 4,8G 50% /
> devtmpfs 983M 268K 983M 1% /dev
> tmpfs 983M 0 983M 0% /dev/shm
> /dev/sda2 50G 11G 37G 24% /home
> /dev/sda6 838G 52G 744G 7% /data
>
> and I don’t know what root is mounted (/home and /data are the same)
>
> I simply wondered if there is an option to have the old display. mount
> gives exactly the same info.
>
> and I just noticed that /dev/root do not exists
>
> finally, I have a mounted file system and it’s not listed antwhere??
> (my root is /dev/sda1)
>
> fstab is::
>
> /dev/sda1 / ext4 errors=remount-ro 0 1
> /dev/sda2 /home ext4 defaults 0 2
> /dev/sda3 none swap defaults 0 0
>
>
> so one can guess root is /dev/sda1, but it’s not true if the boot is
> not standard
I’m not sure what your problem is. When I use ‘df -h’ on 11.4, I get
finger@larrylap:~> df -h
Filesystem Size Used Avail Use% Mounted on
rootfs 40G 11G 28G 28% /
udev 1.5G 184K 1.5G 1% /dev
tmpfs 1.5G 4.0K 1.5G 1% /dev/shm
/dev/sda7 40G 11G 28G 28% /
/dev/sda3 148G 97G 52G 66% /home
/dev/sda6 37G 5.9G 29G 17% /home2
/dev/sda5 40G 5.6G 33G 15% /suse113_32bit
/dev/sda1 40G 18G 20G 49% /susse113_64bit
Other than the entry for rootfs, it looks very much like the output of earlier
versions.
Like I said earlier and like @lwfinger says also, we are not sure what your problem is.
Also saying that there is no /dev/root is strange, as I have
henk@boven:~> l /dev/root
lrwxrwxrwx 1 root root 4 9 jun 15:49 /dev/root -> sda2
henk@boven:~>
And that brings me to the following: when you want me to read your computer output, then please put it between CODE tags: Posting in Code Tags - A Guide
So please tell us what your problem is, else I am afraid most will give up posting on your thread.
On 2011-06-09 16:06, jdd wrote:
> 11.4 one say
>
> Filesystem Size Used Avail Use% Mounted on
> rootfs 10G 4,7G 4,8G 50% /
> /dev/root 10G 4,7G 4,8G 50% /
Yes, it is a nuisance.
> I simply wondered if there is an option to have the old display. mount
> gives exactly the same info.
Not here:
/dev/sda7 on / type ext3
(rw,relatime,errors=continue,user_xattr,acl,commit=15,barrier=1,data=ordered)
>
> and I just noticed that /dev/root do not exists
>
> finally, I have a mounted file system and it’s not listed antwhere??
By the command “mount”.
–
Cheers / Saludos,
Carlos E. R.
(from 11.4 x86_64 “Celadon” at Telcontar)
On 2011-06-09 16:31, Larry Finger wrote:
> Other than the entry for rootfs, it looks very much like the output of
> earlier versions.
That is the point, that the text for “/” has disapeared, it is not possible
to see the actual partition that holds “/”. What is the point of showing
“rootfs” instead of the real device? What do we gain with that?
–
Cheers / Saludos,
Carlos E. R.
(from 11.4 x86_64 “Celadon” at Telcontar)
My 11.4 system.
henk@boven:~> df -h
Bestandssysteem Grtte Gebr Besch Geb% Aangekoppeld op
rootfs 20G 4,2G 15G 23% /
devtmpfs 487M 352K 486M 1% /dev
tmpfs 492M 2,6M 490M 1% /dev/shm
/dev/sda2 20G 4,2G 15G 23% /
/dev/sda3 92G 49G 43G 54% /home
/dev/sda5 20G 5,5G 14G 30% /mnt/oldsys
/dev/sda6 99G 49G 46G 52% /mnt/oldsys/home
henk@boven:~>
I see two lines line for /, where one is the one you are looking for.
And as I suggested earlier:
henk@boven:~> df -h | grep '/dev/sd'
/dev/sda2 20G 4,2G 15G 23% /
/dev/sda3 92G 49G 43G 54% /home
/dev/sda5 20G 5,5G 14G 30% /mnt/oldsys
/dev/sda6 99G 49G 46G 52% /mnt/oldsys/home
henk@boven:~>
weeds out all lines you do not like.
On 2011-06-09 17:06, hcvv wrote:
> Like I said earlier and like @lwfinger says also, we are not sure what
> your problem is.
Obvious: that df output is not clear, in regard to the root partition.
> Also saying that there is no /dev/root is strange, as I have
Yes, but on some systems it prints “/dev/root”, and in others it prints
“rootfs”. No clue in df output what partition is that.
–
Cheers / Saludos,
Carlos E. R.
(from 11.4 x86_64 “Celadon” at Telcontar)
You can try halinfo with the option -u to query udev (doesn’t use hal at all in this case).
See explanation and screenshot here: Displaying partitions infos from hal daemon
The latest version is available here: http://unixversal.com/linux/openSUSE/halinfo203.tgz
Possible syntaxes are
halinfo -u
halinfo -uv
halinfo -uV
depending on verbosity.
Add ‘c’ for colour output.
Currently mounted partitions are indicated by a star.
Apparently I am still guessing what the question is. All the information about the real partitions is there and my second statement shows them on their own. Isn’t that what is searched for?
Well, I know what you’re going to say: it doesn’t show the mount points. I could add a column with the mount points of mounted filesystems. If the filesystem is not mounted, udisks doesn’t have this information: the output of
udisks --show-info /dev/sdaX | grep 'mount paths'
would be empty in this case.
On 2011-06-09 20:36, hcvv wrote:
> I see two lines line for /, where one is the one you are looking for.
> And as I suggested earlier:
…
> weeds out all lines you do not like.
Mmmm…
–
Cheers / Saludos,
Carlos E. R.
(from 11.4 x86_64 “Celadon” at Telcontar)
What about:
df -hl -t ext4 -t ext3
?
Yes, nice one!
On 2011-06-09 21:36, please try again wrote:
>
> robin_listas;2351381 Wrote:
> What about:
>
> Code:
> --------------------
> df -hl -t ext4 -t ext3
> --------------------
Nice try, but I also have xfs and reiserfs, plus the sporadic vfat or ntfs.
Ah, and isosomething. Too complex
–
Cheers / Saludos,
Carlos E. R.
(from 11.4 x86_64 “Celadon” at Telcontar)
Ha! ha! And I do have ufs1 ufs2 and btrfs … and the same 250 MB FAT16 partition with half a dozen DOS bootsectors I keep copying on all computers for over 15 years … But I’m using halinfo to see a big picture of my 50 to 60 partitions 
df -hl 2>/dev/null | sed -n '/^\/dev/p'
On 2011-06-09 21:06, hcvv wrote:
> Apparently I am still guessing what the question is.
Language barrier. Maybe the Spanish understand better the French 
> All the
> information about the real partitions is there and my second statement
> shows them on their own. Isn’t that what is searched for?
In the sample he posted, there is rootfs and /dev/root, but not the device
that is “/”, except as you say, that /dev/root is a symlink to the real one.
To me it is a bit confusing (and that is his point, I think). I would
prefer not to see that rootfs entry nor the /dev/root, but the real device.
Not that is real anymore, it is also a symlink.
–
Cheers / Saludos,
Carlos E. R.
(from 11.4 x86_64 “Celadon” at Telcontar)
I didn’t notice… actually 
@jdd, did you originally mean ‘real partition usage’ or ‘current partition usage’?
@hcw, ‘actuel’ in french means ‘current’ and not ‘actual’. This is a common mistake by french speakers.
I allready decided not to post here any more because I though I was talking against a black hole.
When I ask: “What is the real question?” and you think there is a language barrier, why don’t you explain then what the question is?
In the OP’s first post there was not even one question mark (?) and besides that I could not detect anything that would identify a specific technical question. So I asked in my first answer, together with two answers to questions not asked: one giving a way to filter the output of dh to the lines about file systems on physical partitions and the other on seeing what is mounted on which mount point.
The answer to that from the OP were two (badly readable) ouput listings showing the differences he mentionedd allready in post #1 Good illistration, but again no question.
I do not deny there is a dfffrence. It has without doubt to do with a different handling by the system (Kernel) of something. It is the same as the appearance of the devtmpfs and the tmpfs years go. The reason one might most possibly find by going to look for new kernel features/developement.
The thing is there and as (from it’s man page):
df displays the amount of disk space available on the file system containing each file name argument. If no file name is given, the space available on all currently mounted file systems is shown
it shows what it gets when it asks the kernel for the information, most probably in te same way df did for ages. Not dhanged, but the structure in the kernel changed to show new things.
This being as it is, the question is again, what is the real problem of the OP? E.g. if he wants to know on which partition his root file system resides, he could do
henk@boven:~> mount | grep ' / '
/dev/sda2 on / type ext4 (rw,relatime,user_xattr,acl,barrier=1,data=ordered)
henk@boven:~>
But as he wants something different there will be a different answer. Thus when anybody knows exactly what the OP wants (and I quess the OP know this best), please come foreward. This may make it possible to suggest something that might solve this.