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Executable bit not set for external USB hard disks problem workaround

Problem : Previously the Linux system could automount external HDDs with executable permissions. Any file could be run directly from the hard disk. But the flip side was that almost many files including text files used to get the executable bit set. Hence Nautilus attempted to autorun the HDD. This apparently confused many first time users. So from 10.10 onwards Ubuntu stopped setting the executable bit on external HDDs. At what level it is done UDEV, HAL or PMOUNT is unclear tome. But since pmount is the final piece the workaround could be applied there.

Workaround :

First plug in the external disk. Display the mount points.


See where is the mount. For eg.


Then unmount the disk as root
umount /media/My-Passport

Then as a normal user mount it using the pmount wrapper for mount with the executable bit set for ALL files.

pmount --fmask 077 -d -e /dev/sdb1 My-Passport

fmask of 0 makes everything executable. pmount man claims that VFAT supports per file umask. But it stopped working for me in Ubuntu 10.10.

I kept the -d to show debug output just in case something goes wrong. It could be removed.

WARNING : The disk should be cleanly unmounted before attempting to insert it and use this proc. Same goes for attempting to re-insert and repeating this procedure. For every failed attempt (executable bit not set) unmount it again as root and redo. Clean unmount of drive is very necessary. If nothing works restart or use mount -l option.


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Pratham college-er din ta
Aajo thik e mone poRey scene ta
Dada didi haath dhorey siNRi tei bose poRey
Aamar chokh ta ghorey bon bon bon bon

Sweetheart, I am seating alone
Sweetheart, for me there is none

DhoNk gile chole gelo pratham maas
Meye dekhlei feli deergho-shwash
DhoNk gile chole gelo pratham maas
Meye dekhlei othe nabhishwash
Meyera bheeshan smart poRey chhoto mini-skirt
Aamar e je sheet korey kon kon kon kon

Sweetheart, I am seating alone
Sweetheart, for me there is none

Taarporey kete gelo maas chaar
Fuse holo je kato future
Bandhura purse khule eke oke taake tole
Aamar pran ta korey chon mon chon mon

Sweetheart, I am seating alone
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Ekdin lawn theke beriye
Ek tanayaar dike taakiye
Hawt korey ki je holo magaj ta ghurey gelo
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Today I am going to take a small track like a small 1 min. clip of storm sound and make a long continuous sounding storm audio clip from it.

STEP 1 : Open file
Open the clip in Audacity.

STEP 2 : Removing unwanted audio portion
There is always unwanted sections of the audio that we have to discard. Select the portion of background noise or unwanted audio.

Press DELETE key.

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