Re: devmapper mount names

[Wayne Topa <linuxone@intergate.com>]

Joel Johnson(mrjoel@lixil.net) is reported to have said:
> A basic question that I can't seem to find an answer to (maybe not so 
> basic?).
> 
> Using LVM and therefore devmapper, the volume names are such that they 
> are accessible under /dev/mapper/<PV_Name>-<LV_Name>. Likewise, these 
> names are used in reporting (du, df, mount, etc...). I would prefer to 
> have the volumes reported directly as their dev names, so 
> /dev/mapper/volgroup-root should be /dev/volgroup/root. The volumes are 
> accessible this way, and if I use those entries in fstab it works fine, 
> but still get reported under the /dev/mapper/* headers.
> 
> My best guess is that it has something to do with the order of the 
> lookup of devices, but I don't have any idea how to modify that. Is this 
> possible? Is there a reason not to want such a presentation?

If I understand you correctly, here is how I do it in my /etc/fstab

# /etc/fstab: static file system information.
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
proc            /proc           proc    defaults        0       0
/dev/hda2       /               ext3    defaults,errors=remount-ro 0       1
/dev/lv_home_group/lv_home /home  reiserfs defaults       2  2
/dev/hda1       /boot           ext3    defaults        0       2
/dev/local/lv_usr /usr          reiserfs defaults           2  2
#/dev/hda3       /Knoppix        ext3    defaults        0       2
/dev/local/lv_local /usr/local  reiserfs defaults           2  2
/dev/backups/lv_backup /backups reiserfs defaults            2  2
/dev/spare/pgm3 /pgm3           reiserfs defaults           2  2
/dev/spare/album /album           reiserfs defaults           2  2
/dev/hda5       /var            ext3    defaults        0       2
/dev/hdb9       /extra          ext3    defaults         0      0
#/dev/hdb10      /knoppix        ext3    defaults         0      0
/dev/hda7       none            swap    sw              0       0
/dev/hdb3       none            swap    sw              0       0
/dev/hdd        /media/cdrom0   iso9660 ro,user,noauto  0       0
/dev/hdc        /media/dvd      iso9660 rw,user,noauto  0       0
/dev/fd0        /media/floppy0  auto    rw,user,noauto  0       0
#/dev/hdc        /mnt/UDFDVD     auto    ro,user,noatime 0       0
/dev/pktcdvd/cdrom /mnt/UDF  udf     noauto,noatime,user,rw     0       0
/dev/pktcdvd/dvd /mnt/UDF  udf     noauto,noatime,user,rw     0       0

HTH

Wayne
-- 
Real software engineers work from 9 to 5, because that is the way the
job is described in the formal spec.  Working late would feel like
using an undocumented external procedure.
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