This started happening after a disk reorg+addition I did a month ago.

Yast software manager download and install the packages OK, but give this
warning before installing each package if I don't tick "don't show this warning
again":

"The disk space in partition /home/shares/Gravados/Series\040Concluidas/ is
almost full. Continue installation?"

The relevant lines of fstab are shown below, with UUIDs substituted for sdXX
for better understanding. the \040 code translate to a blank space in the mount
directory. Yast partitioner would choke on them (or the accents), but the names
could be directly edited in fstab and work fine after rebooting:

Code:

...
sdd1    /home/shares                 ext4      
noatime,data=writeback,acl,nodiratime 1 2
...
sde1    /home/shares/Gravados/Series ext4      
noatime,data=writeback,acl,user_xattr,nodiratime 1 2
sdc1    /home/shares/Gravados/Series\040em\040Ingl�s       ext4      
noatime,data=writeback,acl,user_xattr,nodiratime 1 2
sdf1    /home/shares/Gravados/Series\040Concluidas/ ext4      
noatime,data=writeback,acl,user_xattr,nodiratime 1 2

Lots of free space:

Code:

> df -h
Sist. Arq.      Tam. Usado Disp. Uso% Montado em
/dev/sda6        20G   11G  8,0G  58% /
devtmpfs        7,9G  4,0K  7,9G   1% /dev
tmpfs           7,9G   96K  7,9G   1% /dev/shm
tmpfs           7,9G  2,3M  7,9G   1% /run
tmpfs           7,9G     0  7,9G   0% /sys/fs/cgroup
/dev/sdb1       100G   30G   71G  30% /windowsD
/dev/sdb6       990M  162M  761M  18% /var/log
/dev/sdb5       976M  346M  563M  39% /tmp
/dev/sda2        90G   23G   68G  25% /windowsC
/dev/sda7       118G   69G   44G  62% /home
/dev/sdb3       718G  544G  139G  80% /home/arquivos
/dev/sdb2        99G   54G   40G  58% /home/trabalho
/dev/sdd1       1,8T  790G  951G  46% /home/shares
/dev/sdc1       917G  666G  251G  73% /home/shares/Gravados/Series em Ingl�s
/dev/sdf1       1,8T 1022G  812G  56% /home/shares/Gravados/Series Concluidas
/dev/sde1       1,8T  888G  946G  49% /home/shares/Gravados/Series

No warning message during install with Yast Online Update or KDE's packagekit
front-end program updater.

>From this comment in the forum it seems related to the space in the mount name:

https://forums.opensuse.org/showthread.php/506145-YAST-warning-of-low-disk-space-in-unrelated-mounted-partition-with-more-than-800-GB-free?p=2701717#post2701717

I haven't noticed any adverse effect except for the warning message.

y2log part relevant to the last warning received:

:~> cat y2log | grep Concluidas
2015-03-30 19:02:06 <2> bruno-03(29012) [zypp]
DiskUsageCounter.cc(detectMountPoints):282 Unable to
statvfs(/home/shares/Gravados/Series\040Concluidas); errno 2
2015-03-30 19:14:59 <2> bruno-03(11245) [zypp]
DiskUsageCounter.cc(detectMountPoints):282 Unable to
statvfs(/home/shares/Gravados/Series\040Concluidas); errno 2
2015-03-30 19:16:30 <1> bruno-03(11245) [Ruby]
modules/PackageInstallation.rb:223 CommitPackages (0,0): Pkg::TargetGetDU()
$["/":[20511356, 11276812, 11291073, 0], "/home":[123723748, 62334000,
62334000, 0], "/home/arquivos":[752813152, 583747320, 583747320, 0],
"/home/shares":[1922728752, 842811676, 842811676, 0],
"/home/shares/Gravados/Series":[1922728752, 941632712, 941632712, 0],
"/home/shares/Gravados/Series\\040Concluidas":[0, 0, 0, 0],
"/home/shares/Gravados/Series\\040em\\040Ingl\u00EAs":[0, 0, 0, 0],
"/home/trabalho":[103081248, 56036856, 56036856, 0], "/tmp":[999320, 5932,
5932, 0], "/var/log":[1013688, 173700, 173700, 0], "/windowsD":[104857596,
30891128, 30891128, 0]]
2015-03-30 19:16:30 <2> bruno-03(11245) [Ruby]
modules/SlideShowCallbacks.rb:322 Not enought free space in
/home/shares/Gravados/Series\040Concluidas
(//home/shares/Gravados/Series\040Concluidas): available: -1, required: 0

Full y2log file (9.5 MB) available if necessary.