Marko Vojinovic <vvmarko <at> gmail.com> writes:
> ...
> `/media', type `tmpfs'
> => type matches, dir `/media'
> ...done
> Skipping `/media': in prunefs
> </quote>
>
> I am not sure how to read this, but it appears that /media somehow matches the
> tmpfs, which gets excluded. So now I have three questions:
>
> (1) Why is /media considered to be tmpfs? AFAIK, it is just a directory under
> my root partition, which is ext4. What am I missing?
I already explained that in a post in a different branch.
>
> (2) How do I fix this? I don't want to remove tmpfs from prunefs. Is there a
> way to reconfigure the /media to not be tmpfs? Or is there any way to force
> updatedb to traverse the contents of /media regardless of pruning rules?
>
I was wondering about this:
updatedb.conf(5)
...
PRUNE_BIND_MOUNTS
One of the strings 0, no, 1 or yes. If PRUNE_BIND_MOUNTS is 1
or yes, bind mounts are not scanned by updatedb(8). All file
systems mounted in the subtree of a bind mount are skipped as
well, even if they are not bind mounts. As an exception, bind
mounts of a directory on itself are not skipped.
By default, bind mounts are not skipped.
...
This is of interest to me:
...
As an exception, bind
mounts of a directory on itself are not skipped.
...
I tried to bind mount /media or /media/NETBSD_51 on itself and it did not work.
Perhaps I am missing something here or the feature does not work ?
> (3) What exactly changed here between F14 and F16? In F14 the same
> configuration used to work, ie. /media was not recognized as tmpfs, AFAIK.
Under F14:
$ mount
/dev/sda2 on / type ext4 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs on /dev/shm type tmpfs (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
/dev/sr0 on /media/NETBSD_51 type iso9660 (ro,nosuid,nodev,uid=500,utf8)
# cat /etc/updatedb.conf
PRUNE_BIND_MOUNTS = "yes"
PRUNEFS = "9p afs anon_inodefs auto autofs bdev binfmt_misc cgroup cifs coda
configfs cpuset debugfs devpts ecryptfs exofs fuse fusectl gfs gfs2 hugetlbfs
inotifyfs iso9660 jffs2 lustre mqueue ncpfs nfs nfs4 nfsd pipefs proc ramfs
rootfs rpc_pipefs securityfs selinuxfs sfs sockfs sysfs tmpfs ubifs udf usbfs"
PRUNENAMES = ".git .hg .svn"
PRUNEPATHS = "/afs /media /net /sfs /tmp /udev /var/cache/ccache /var/spool/cups
/var/spool/squid /var/tmp"
# updatedb --debug-pruning
...
`/media/NETBSD_51', type `iso9660'
=> type matches, dir `/media/NETBSD_51'
...
Skipping `/media': in prunepaths
...
Note:
1. /media/NETBSD_51 , being of "type" iso9660, is pruned per PRUNEFS
2. /media is pruned per PRUNEPATHS
# cat /etc/updatedb.conf
PRUNE_BIND_MOUNTS = "yes"
PRUNEFS = "9p afs anon_inodefs auto autofs bdev binfmt_misc cgroup cifs coda
configfs cpuset debugfs devpts ecryptfs exofs fuse fusectl gfs gfs2 hugetlbfs
inotifyfs iso9660 jffs2 lustre mqueue ncpfs nfs nfs4 nfsd pipefs proc ramfs
rootfs rpc_pipefs securityfs selinuxfs sfs sockfs sysfs tmpfs ubifs udf usbfs"
PRUNENAMES = ".git .hg .svn"
PRUNEPATHS = "/afs /media /media/NETBSD_51 /net /sfs /tmp /udev
/var/cache/ccache /var/spool/cups /var/spool/squid /var/tmp"
...
`/media/NETBSD_51', type `iso9660'
=> type matches, dir `/media/NETBSD_51'
...
Skipping `/media': in prunepaths
...
Note:
Regardless of /media and /media/NETBSD_51 being in PRUNEPATHS, the PRUNEFS
takes care of /media/NETBSD_51 due to fs type, *before* PRUNEPATHS takes care
of /media (but not of /media/NETBSD_51) due to its path.
CONCLUSION:
Due to /media being a *generic* (top level) qualifier, having fs types as its
sub-qualifiers when /media is actually populated (mounted), the updatedb
should process PRUNEPATHS *before* PRUNEFS for it to work correctly.
It is a bug, up to and inclusive F16, and I guess F17 too.
> ...
JB
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