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Really strange issue that I've encountered.

I have fedora 23 and a flash drive that I play with writing some scripts for mount/unmount operations: 

/dev/sdb1 on /run/media/mymounts/kol type msdos (rw,relatime,fmask=0022,
dmask=0022,codepage=437,errors=remount-ro)

Trying to run mkdir partition within kol creates a directory called partitio. An attempt to run the same command again gives:

mkdir: cannot create directory ‘partition’: File exists

An attempt to create a partitio directory first, and then to run mkdir partition gives the same error as above.

Remounting does not help.

Any ideas?

user3081519
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1 Answers1

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The DOS filesystem only supports a maximum filename length of 8 characters, plus an optional dot and extension of up to three characters.

When you asked it to create partition, it only used the first 8 characters to give you partitio.

Running the command again, it tried to create another partitio directory but it already existed, despite the confusing 'partition': File exists message.

Ian Petts
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