[gentoo-user] fix fstab for tripleboot

[gentoo-user] fix fstab for tripleboot

[Thufir]

How can I fix line 10 of /etc/fstab so that, like /mnt/windows, it's just
automagically available for read and write?




[root@arrakis ~]#
[root@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 (2.6.18-1.2200.fc5)
    15          root (hd0,0)
    16          kernel /vmlinuz-2.6.18-1.2200.fc5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet
    17          initrd /initrd-2.6.18-1.2200.fc5.img
    18  title Fedora Core (2.6.17-1.2187_FC5)
    19          root (hd0,0)
    20          kernel /vmlinuz-2.6.17-1.2187_FC5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet
    21          initrd /initrd-2.6.17-1.2187_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@arrakis ~]#
[root@arrakis ~]# exit
logout

[thufir@arrakis ~]$
[thufir@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
    10  #/dev/hdb4              /mnt/gentoo             ext3    users,owner,rw,umask=000 0 0
    11
[thufir@arrakis ~]$
[thufir@arrakis ~]$ date
Tue Oct 17 07:55:42 IST 2006
[thufir@arrakis ~]$



thanks,

Thufir

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Re: [gentoo-user] fix fstab for tripleboot

[Dirk Heinrichs]

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Am Dienstag, 17. Oktober 2006 08:57 schrieb ext Thufir:

> How can I fix line 10 of /etc/fstab so that, like /mnt/windows, it's just
> automagically available for read and write?
>
>        ext3    users,owner,rw,umask=000

Change it to "ext3 defaults".

HTH...

	Dirk
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Re: [gentoo-user] fix fstab for tripleboot

[Alan McKinnon]

On Tuesday 17 October 2006 08:57, Thufir wrote:
> How can I fix line 10 of /etc/fstab so that, like /mnt/windows, it's
> just automagically available for read and write?

[snip]
>   9  /dev/hdb1               /mnt/windows          
>  vfat    users,owner,rw,umask=000 0 0
>  10  #/dev/hdb4              
> /mnt/gentoo             ext3    users,owner,rw,umask=000 0 0 11

The short answer is that you don't. The long answedr is that you can, if 
you are willing to change permissions.

Your /mnt/windows is a vfat filesystem, which has no idea of unix 
permissions. But it's mounted on a Unix system which must have 
permissions, so the kernel takes a default and applies the default to 
every file and directory

Your /mnt/gentoo is ext3 which DOES understand permissions, so therefore 
the system will use the permissions and owner/group that is already on 
that filesystem. You can't override this, and neither do you want to. 
The defaults you are using mostly do not apply to ext3 either, check 
the man page for mount for valid options to ext3 and ext2.

If you are willing to change owner and permissions on all the files 
on /dev/hdb4 then you can do so and they will be available when 
mounted, but you cannot arbitrarily suspend existing permissions with 
just a mount operation.

alan
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