HDD

• http://www.logic-sunrise.com/news-38109-exclusif-ls-une-gameboy-de-80gb.html
• http://www.wikihow.com/Convert-Your-Game-Boy-Into-a-Portable-Hard-Drive

You should not mount it directly using mount. You need first to run mdadm to assemble the raid array. A command like this should do it:

$ mdadm --assemble --run /dev/md0 /dev/sdc*

If it refuses to run the array because it will be degraded, then you can use –force option. This is assuming you don't have /dev/md0 device. Otherwise, you need to change this name.

When this command is executed successfully, you can mount the created device normally using:

$ mount /dev/md0 /mnt/test

http://serverfault.com/questions/9735/is-it-possible-to-hide-lostfound

• https://forum.openwrt.org/viewtopic.php?id=37165
• https://blogofterje.wordpress.com/2012/01/14/optimizing-fs-on-sd-card/
• http://www.hecticgeek.com/2015/01/ext4-external-hard-disk-busy-at-idle-fix/
• http://fenidik.blogspot.fr/2010/03/ext4-disable-journal.html
• http://askubuntu.com/questions/587247/how-to-create-a-ext4-partition-for-all-users
• http://www.ext2fsd.com/
• http://superuser.com/questions/379074/how-to-correctly-partition-usb-flash-drive-and-which-filesystem-to-choose-consid
• http://unix.stackexchange.com/questions/126213/external-hard-drive-permissions-ext4
• http://unix.stackexchange.com/questions/67105/is-it-possible-to-disable-file-permissions-on-a-ext3-or-ext4-file-system
• https://github.com/bradfa/flashbench
• https://developer.ridgerun.com/wiki/index.php/High_performance_SD_card_tuning_using_the_EXT4_file_system
• http://searchenterpriselinux.techtarget.com/tip/Tuning-the-Ext4-file-system-for-optimal-performance
• http://askubuntu.com/questions/384062/how-do-i-create-and-tune-an-ext4-partition-from-the-command-line
• http://serverfault.com/questions/404571/best-options-to-create-and-mount-an-ext4-volume-containing-10m-files-in-one-di

OKL: sudo parted /dev/device print unit MB print free

which indicates:

Disk /dev/device: 6001175MB

OKL: sudo parted –align optimal /dev/device mkpart primary ext4 0% 6001175MB

OKL:sudo mkfs.ext4 -O ^has_journal -E stride=2,stripe-width=1024,lazy_itable_init=0,lazy_journal_init=0 -b 4096 -m 0 -L Name /dev/device

OKL: sudo mount -o remount,noatime,nodiratime /media/data

OKL: sudo chown -R user:users /media/data; sudo chmod a+rwX -R /media/data

OKL: sudo chmod -R 0775 /media/data; sudo chown -R root:root /media/data/lost+found ; sudo chmod -R g-rwx,o-rwx /media/data/lost+found

• https://en.wikipedia.org/wiki/Universal_Disk_Format
• https://tanguy.ortolo.eu/blog/article93/usb-udf
• https://github.com/JElchison/format-udf