Modify /etc/mnttab

[O'lnes]

Does it need to initiate after modify the file /etc/mnttab ?

Thanks

[Michael Tully]

Hi,

You don't ever modify the /etc/mnttab file.

If you wish update it your run:

# rm /etc/mnttab
# mount -a

I'm not sure what your trying to achieve....

Michael

[Bill Hassell]

Never edit or modify the /etc/mnttab file! To mount a filesystem, first add an entry into /etc/fstab, then use the mount command. The mnttab file is directly modified by syncer and the mount/umount commands. If there is a strange entry (such as /dev/root), then you have problems related to multiple boot drives and problems with the lvlnboot setup.

You can recreate /etc/mnttab by removing it and then immediately running: mountall

[Michael Tully]

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[O'lnes]

I have modified one of entry of /etc/fstab , then run mount -a , but the /etc/mnttab is still not update, does /etc/fstab need to be initiate after modify?

Thanks

[T G Manikandan]

/etc/mnttab has information about the mounted file systems.

When you give the mount command it looks at this /etc/mnttab file and gives the output.

Just
#mv /etc/mnttab /etc/mnttab.old
then do a

#mount -a

to reread your /etc/fstab file .

[V. V. Ravi Kumar_1]

hi,

try this, umount the file system for which u did modification and mount it again.
hope this helps
regds

[melvyn burnard]

NEVER EVER modify mnttab!

you say you have changed fstab, done mount -a and mnttab has not changed.
What exactly have you changed, and what are you expecting to see differently in mnttab??

[Ravi_8]

Hi,

Don't take a chance of modifying /etc/mnttab.

if you wanted to mount new filesystem add a line in /etc/fstab and
# mount -a

[O'lnes]

I change the /etc/fstab from "/dev/vg00/lvol5 /home hfs defaults 0 0" to "/dev/vg00/lvol5 /opt hfs quota 0 0" , then run " mount -a " , the /etc/mnttab is still "/dev/vg00/lvol5 /home hfs defaults 0 0" , so i think the file is not update, can some suggest what this happen ? thanks.

[Frank Slootweg]

As others have mentioned, if you modify an *existing* entry in /etc/fstab (which you do) and that logical volume is already mounted (which it is in your case), then you have the first umount it and then re-mount it. The former must be done by umount. The latter can be done by mount (with parameters) or by "mount -a" (ignoring the messages for already mounted filesystems.

*BUT* are you sure you want to change /home to /opt? I.e. does the logical volume really contain the /opt filesystem?

[harry d brown jr]

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