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# Unmount the filesystem and check its' LV
umount /mnt/foo
e2fsck -f /dev/mapper/vg0-foo
# Shrink ext4 and then the LV to the desired size
resize2fs -p /dev/mapper/vg0-foo 40G
lvreduce -L 40G /dev/mapper/vg0-foo
# Before continuing, run e2fsck. If it bails because the partition
# is too small, don't panic! The LV can still be extended with
# lvextend until e2fsck succeeds, e.g.:
# lvextend -L +1G /dev/mapper/vg0-foo
e2fsck -f /dev/mapper/vg0-foo
# Resize the filesystem to match the LVs size, check and mount it
resize2fs -p /dev/mapper/vg0-foo
e2fsck -f /dev/mapper/vg0-foo
mount /mnt/foo |
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umount /mnt/bar
# Extend the LV to use all free space
lvextend -l +100%FREE /dev/mapper/vg0-bar
e2fsck -f /dev/mapper/vg0-bar
# Resize the partition to fill the LV
resize2fs -p /dev/mapper/vg0-bar
e2fsck -f /dev/mapper/vg0-bar
mount /mnt/bar |
source:
source
Script, tips
bash, ext4, linux, lvm, resize, Script, tips
Qui raccolgo un po di script che mi sono fatto x la vita di tutti i giorni 
Photo resize (photo_resize)
piccolo script in ruby che serve per fare delle thumbnails di foto, passando almeno la cartella contenente le foto (strano )
Require:
ruby (test with: ruby 1.9.1p378 (2010-01-10 revision 26273) [x86_64-linux] ||ruby 1.8.7 (2009-12-24 patchlevel 248) [x86_64-linux] || jruby 1.4.0 (ruby 1.8.7 patchlevel 174) (2009-11-02 69fbfa3) (Java HotSpot(TM) 64-Bit Server VM 1.6.0_15) [amd64-java] )
rmagick (http://rmagick.rubyforge.org/)
optiflag (http://optiflag.rubyforge.org/)
syntax:
----------------
Description: Folder with image to resize
Flag: -s (Required, takes 1 argument)
Long Form: --source
Alternate Flags: -source, -S, -from
----------------
Description: Folder to save the thumbnails, auto => source/thumb
Flag: -t (Optional, takes 1 argument)
Long Form: --target
Alternate Flags: -target, -T, -to, -To
----------------
Description: Width max
Flag: -pw (Optional, takes 1 argument)
Long Form: --photo_width
Alternate Flags: -width
----------------
Description: Height max
Flag: -ph (Optional, takes 1 argument)
Long Form: --photo_height
Alternate Flags: -height
----------------
Description: Filter type: ex. jpg,JPG , default => jpg,JPG
Flag: -pt (Optional, takes 1 argument)
Long Form: --photo_type
Alternate Flags: -type
----------------
Description: Help
Flag: -h (Optional, takes 0 arguments)
Long Form: --help
Alternate Flags: -help, -?, -?
----------------
Description: Extended Help
Flag: -superhelp (Optional, takes 0 arguments)
Long Form: --superhelpTutti i miei script li trovate qui:
http://www.waydotnet.com/blog/scripts/
Script
optiflag, photo, photo resize, resize, rmagick, ruby
