find out filesystem being used how?

[Manuel Arostegui Ramirez]

El Lunes, 16 de Octubre de 2006 09:36, Thufir escribió:
> I have a triple boot system:  Fedora, Gentoo and Win2k.
>
> How do I find out the filesystem which the Gentoo installation employs?
> If Gentoo's using ext3, then I'd add the following line to the /etc/fstab
> file?
>
> /dev/hdb3  /mnt/gentoo     ext3  users,owner,rw,umask=000 0 0
>
> ?
>
> Can I probe hdb3 to find out the filesystem?  I think it's ext3, but don't
> recall.
>
>
> [root at arrakis ~]#
> [root at arrakis ~]# cat /etc/fstab -n
>      1  /dev/VolGroup00/LogVol00 /                       reiserfs defaults 
>       1 1 2  LABEL=/boot             /boot                   ext3   
> defaults        1 2 3  devpts                  /dev/pts               
> devpts  gid=5,mode=620  0 0 4  tmpfs                   /dev/shm            
>    tmpfs   defaults        0 0 5  proc                    /proc            
>       proc    defaults        0 0 6  sysfs                   /sys          
>          sysfs   defaults        0 0 7  /dev/hdb3               swap       
>             swap    defaults        0 0 8  /dev/VolGroup00/LogVol01 swap   
>                 swap    defaults        0 0 9  /dev/hdb1              
> /mnt/windows            vfat    users,owner,rw,umask=000 0 0 [root at arrakis
> ~]# fdisk -l
>
> Disk /dev/hda: 80.0 GB, 80026361856 bytes
> 255 heads, 63 sectors/track, 9729 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
>    Device Boot      Start         End      Blocks   Id  System
> /dev/hda1   *           1          13      104391   83  Linux
> /dev/hda2              14        9729    78043770   8e  Linux LVM
>
> Disk /dev/hdb: 30.7 GB, 30750031872 bytes
> 255 heads, 63 sectors/track, 3738 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
>    Device Boot      Start         End      Blocks   Id  System
> /dev/hdb1   *           1        1427    11462346    c  W95 FAT32 (LBA)
> /dev/hdb2            1428        1440      104422+  83  Linux
> /dev/hdb3            1441        1495      441787+  82  Linux swap /
> Solaris /dev/hdb4            1496        3738    18016897+  83  Linux
>
> Disk /dev/dm-0: 78.8 GB, 78852915200 bytes
> 255 heads, 63 sectors/track, 9586 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Disk /dev/dm-0 doesn't contain a valid partition table
>
> Disk /dev/dm-1: 1006 MB, 1006632960 bytes
> 255 heads, 63 sectors/track, 122 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Disk /dev/dm-1 doesn't contain a valid partition table
> [root at arrakis ~]#
> [root at arrakis ~]# cat /boot/grub/grub.conf -n
>      1  # grub.conf generated by anaconda
>      2  #
>      3  # Note that you do not have to rerun grub after making changes to
> this file 4  # NOTICE:  You have a /boot partition.  This means that
>      5  #          all kernel and initrd paths are relative to /boot/, eg.
>      6  #          root (hd0,0)
>      7  #          kernel /vmlinuz-version ro root=/dev/VolGroup00/LogVol00
>      8  #          initrd /initrd-version.img
>      9  #boot=/dev/hda
>     10  default=0
>     11  timeout=5
>     12  splashimage=(hd0,0)/grub/splash.xpm.gz
>     13  #hiddenmenu
>     14  title Fedora Core (2.6.17-1.2187_FC5)
>     15          root (hd0,0)
>     16          kernel /vmlinuz-2.6.17-1.2187_FC5 ro
> root=/dev/VolGroup00/LogVol00 rhgb quiet 17          initrd
> /initrd-2.6.17-1.2187_FC5.img
>     18  title Fedora Core (2.6.17-1.2174_FC5)
>     19          root (hd0,0)
>     20          kernel /vmlinuz-2.6.17-1.2174_FC5 ro
> root=/dev/VolGroup00/LogVol00 rhgb quiet 21          initrd
> /initrd-2.6.17-1.2174_FC5.img
>     22  title win2k
>     23            map (hd0) (hd1)
>     24            map (hd1) (hd0)
>     25            rootnoverify (hd1,0)
>     26            chainloader +1
>     27  title Gentoo
>     28            kernel (hd1,1)/kernel-genkernel-x86-2.6.15-gentoo-r5
> root=/dev/ram0 init=/linuxrc ramdisk=8192 real_root=/dev/hdb4 29           
> initrd (hd1,1)/initramfs-genkernel-x86-2.6.15-gentoo-r5 [root at arrakis ~]#
> [root at arrakis ~]# date
> Mon Oct 16 08:31:04 IST 2006
> [root at arrakis ~]#
> [root at arrakis ~]# exit
> logout
>
> [thufir at arrakis ~]$
> [thufir at arrakis ~]$
>

First, Looking at your fstab output either fdisk one, did you notice 
that /dev/hdb3 is SWAP? So then, there's no ext3 there ;-)

By the way, you can find out any FS on any partition using for instance, 
parted (there's a gui for it called qtparted).
Probably Gentoo uses ext3 by default.

Hope that helps.
-- 
Manuel Arostegui Ramirez.

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