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Old 24th September 2018
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Default Which filesystem should I use for USB flash drive ?

Hi,

Which filesystem should I use for USB flash drive ?

Presently it is formatted to Ext4 but as you know under OpenBSD ext4 can mounted only as read only.

Also what is the command to format ?

Right now I am mounting the flash drive by doing

Code:
mount -r /dev/sd1i /mnt
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Old 24th September 2018
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Any ideas ?
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Old 24th September 2018
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This guide is very useful.
http://daemonforums.org/showthread.php?t=2232#post16505
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Old 24th September 2018
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Quote:
Originally Posted by sacerdos_daemonis View Post
I am getting 404 Not Found.
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Old 24th September 2018
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The thread is in Miscellaneous/Guides


HOWTO: mounting an USB device as normal non-root user in OpenBSD


by J65nko
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Old 24th September 2018
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The most portable filesystem (in my opinion) is FAT32. It has limitations but all (or almost all) operating systems support it.

I have found your thread from last year. Check it again http://daemonforums.org/showthread.php?t=10473
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Old 24th September 2018
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Quote:
Originally Posted by Lazar View Post
The most portable filesystem (in my opinion) is FAT32. It has limitations but all (or almost all) operating systems support it.

I have found your thread from last year. Check it again http://daemonforums.org/showthread.php?t=10473
I plan to store Clonezilla (full disk) backups on the flash drive. Do you think FAT32 is a wise choice in this situation ?
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Old 24th September 2018
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Quote:
Originally Posted by sacerdos_daemonis View Post
The thread is in Miscellaneous/Guides


HOWTO: mounting an USB device as normal non-root user in OpenBSD


by J65nko
Thats not what I am trying to do. I dont want to modify the default security policy of OpenBSD.
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Old 24th September 2018
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I just read on the web that in FAT32 you cant store files larger than 4GB so its of no use to me.

I want a filesystem that is based on OpenBSD and something that Clonezilla can write to.
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Old 24th September 2018
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Okay I found a solution.

Did

Code:
newfs -t ext2fs sd1i
Code:
# mkdir /mnt/pen
Code:
# mount /dev/sd1i /mnt/pen/
Code:
# chown myusername:users /mnt/pen/
Now its working.
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Old 26th September 2018
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Yes, I use ext2 to go between Linux and OpenBSD, FAT32 between those and Windows.
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Old 26th September 2018
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The downside of using anything other than FAT is when you forget that your stick is formatted differently (it'll happen unless you mark it somehow) and then scratch your head why it doesn't work on the scanner in the library for instance. Happened to me.
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Old 26th September 2018
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Quote:
Originally Posted by fvgit View Post
The downside of using anything other than FAT is when you forget that your stick is formatted differently (it'll happen unless you mark it somehow) and then scratch your head why it doesn't work on the scanner in the library for instance. Happened to me.
Yup, exactly. That's why I'll often make 2 (or more partitions), one FAT, one ext2fs, on the stick.
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Old 27th September 2018
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Quote:
Originally Posted by fvgit View Post
The downside of using anything other than FAT is when you forget that your stick is formatted differently (it'll happen unless you mark it somehow) ...
These are my Apacer AH352 drives, with their plastic covers pried off and the bare PCB coated with two layers of epoxy and with different pieces of coloured card on each one. Some of them form tails when I'm hanging them up to set...
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File Type: jpg 100_1659.JPG (590.2 KB, 104 views)

Last edited by new2BSDlol; 28th September 2018 at 01:37 AM.
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Old 27th September 2018
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Those look nerdy and scary at the same time. Like something out of the Alien movie franchise.

That being said it'll probably make it easier to spot any tampering if you memorise every undulation of the epoxy.
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Old 28th September 2018
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Lol. Maybe you could set your finger thumb-print into the epoxy before it's fully dry.

Last edited by IdOp; 28th September 2018 at 12:46 AM.
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Old 15th October 2018
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As mentioned above, if you want to store a very large amount of data on a disk, then you do not need to use any file system at all. You can just write sequentially to the device and fill it up.

A file system is only useful if you want to store multiple files. If you only want to store one file on a device, then you need not bother!
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