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/etc/fstab mounting with auto buffer flushing


sda and sdb block specials point to same device and get mixed up (hardware RAID doesn't work after new installation of 12.04)Error mounting drive with fstabError mounting drivesgroup option in fstab not workingUnable to change permissions of file system rootWhy is my swap not being activated automatically via fstab?How to properly automount partitions? fstabmounting network drive in /etc/fstabNAS share not mounting on linux boot through /etc/fstabIssue with correct syntax of /etc/fstab






.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ margin-bottom:0;
}







0















My /etc/fstab line for the SD I'm willing to mount looks like:



/dev/mmcblk1    /media/sd_card  vfat    user,rw,umask=000,sync  0 2


With this line I'm able to mount the SD, but everytime I want to unplug the SD I have to execute blockdev --flushbufs /dev/mmcblk1 if I want to make the written changes take effect.



What means, that if I dont execute the blockdev-command all the written changes are lost after unplugging the SD.



The weird thing is, that I all the time I was using this line, I thought everything is working fine...



So what am I doing wrong?





I'm working on the jetson tx2 with Ubuntu 16.04 running on it.










share|improve this question

























  • unmounting the filesystem isn't enough?

    – ilkkachu
    yesterday











  • @ilkkachu I can't say, when the user unplugs the SD. So I don't get your point.

    – JulianH
    yesterday













  • Ah right, of course it doesn't help if you don't know when the card is unplugged. The phrasing in "everytime I want to unplug the SD I have to execute...", seemed to indicate that the intention to unplug was known in advance.

    – ilkkachu
    yesterday


















0















My /etc/fstab line for the SD I'm willing to mount looks like:



/dev/mmcblk1    /media/sd_card  vfat    user,rw,umask=000,sync  0 2


With this line I'm able to mount the SD, but everytime I want to unplug the SD I have to execute blockdev --flushbufs /dev/mmcblk1 if I want to make the written changes take effect.



What means, that if I dont execute the blockdev-command all the written changes are lost after unplugging the SD.



The weird thing is, that I all the time I was using this line, I thought everything is working fine...



So what am I doing wrong?





I'm working on the jetson tx2 with Ubuntu 16.04 running on it.










share|improve this question

























  • unmounting the filesystem isn't enough?

    – ilkkachu
    yesterday











  • @ilkkachu I can't say, when the user unplugs the SD. So I don't get your point.

    – JulianH
    yesterday













  • Ah right, of course it doesn't help if you don't know when the card is unplugged. The phrasing in "everytime I want to unplug the SD I have to execute...", seemed to indicate that the intention to unplug was known in advance.

    – ilkkachu
    yesterday














0












0








0








My /etc/fstab line for the SD I'm willing to mount looks like:



/dev/mmcblk1    /media/sd_card  vfat    user,rw,umask=000,sync  0 2


With this line I'm able to mount the SD, but everytime I want to unplug the SD I have to execute blockdev --flushbufs /dev/mmcblk1 if I want to make the written changes take effect.



What means, that if I dont execute the blockdev-command all the written changes are lost after unplugging the SD.



The weird thing is, that I all the time I was using this line, I thought everything is working fine...



So what am I doing wrong?





I'm working on the jetson tx2 with Ubuntu 16.04 running on it.










share|improve this question














My /etc/fstab line for the SD I'm willing to mount looks like:



/dev/mmcblk1    /media/sd_card  vfat    user,rw,umask=000,sync  0 2


With this line I'm able to mount the SD, but everytime I want to unplug the SD I have to execute blockdev --flushbufs /dev/mmcblk1 if I want to make the written changes take effect.



What means, that if I dont execute the blockdev-command all the written changes are lost after unplugging the SD.



The weird thing is, that I all the time I was using this line, I thought everything is working fine...



So what am I doing wrong?





I'm working on the jetson tx2 with Ubuntu 16.04 running on it.







linux fstab sd-card vfat fat32






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked yesterday









JulianHJulianH

1083 bronze badges




1083 bronze badges
















  • unmounting the filesystem isn't enough?

    – ilkkachu
    yesterday











  • @ilkkachu I can't say, when the user unplugs the SD. So I don't get your point.

    – JulianH
    yesterday













  • Ah right, of course it doesn't help if you don't know when the card is unplugged. The phrasing in "everytime I want to unplug the SD I have to execute...", seemed to indicate that the intention to unplug was known in advance.

    – ilkkachu
    yesterday



















  • unmounting the filesystem isn't enough?

    – ilkkachu
    yesterday











  • @ilkkachu I can't say, when the user unplugs the SD. So I don't get your point.

    – JulianH
    yesterday













  • Ah right, of course it doesn't help if you don't know when the card is unplugged. The phrasing in "everytime I want to unplug the SD I have to execute...", seemed to indicate that the intention to unplug was known in advance.

    – ilkkachu
    yesterday

















unmounting the filesystem isn't enough?

– ilkkachu
yesterday





unmounting the filesystem isn't enough?

– ilkkachu
yesterday













@ilkkachu I can't say, when the user unplugs the SD. So I don't get your point.

– JulianH
yesterday







@ilkkachu I can't say, when the user unplugs the SD. So I don't get your point.

– JulianH
yesterday















Ah right, of course it doesn't help if you don't know when the card is unplugged. The phrasing in "everytime I want to unplug the SD I have to execute...", seemed to indicate that the intention to unplug was known in advance.

– ilkkachu
yesterday





Ah right, of course it doesn't help if you don't know when the card is unplugged. The phrasing in "everytime I want to unplug the SD I have to execute...", seemed to indicate that the intention to unplug was known in advance.

– ilkkachu
yesterday










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