Mounting fstab using mount -a not working like regular mount











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So I'm writing an custom init script and I want to mount / as rw. In /etc/init.d/rcS when I use mount -t ext4 -o remount /dev/sda / it does remount as rw but when I do mount -a (or I even tried mount -a -o remount) with fstab:



/dev/sda                 /                       ext4    defaults        1 1


it doesn't and / is mounted as ro. What is going on here?










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  • Are you sure you are trying to mount "/dev/sda" (the disk itself), not "/dev/sda1" / "/dev/sda2" (the first or other partitions on it)
    – Jaleks
    yesterday















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0
down vote

favorite












So I'm writing an custom init script and I want to mount / as rw. In /etc/init.d/rcS when I use mount -t ext4 -o remount /dev/sda / it does remount as rw but when I do mount -a (or I even tried mount -a -o remount) with fstab:



/dev/sda                 /                       ext4    defaults        1 1


it doesn't and / is mounted as ro. What is going on here?










share|improve this question







New contributor




zakrent is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.




















  • Are you sure you are trying to mount "/dev/sda" (the disk itself), not "/dev/sda1" / "/dev/sda2" (the first or other partitions on it)
    – Jaleks
    yesterday













up vote
0
down vote

favorite









up vote
0
down vote

favorite











So I'm writing an custom init script and I want to mount / as rw. In /etc/init.d/rcS when I use mount -t ext4 -o remount /dev/sda / it does remount as rw but when I do mount -a (or I even tried mount -a -o remount) with fstab:



/dev/sda                 /                       ext4    defaults        1 1


it doesn't and / is mounted as ro. What is going on here?










share|improve this question







New contributor




zakrent is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











So I'm writing an custom init script and I want to mount / as rw. In /etc/init.d/rcS when I use mount -t ext4 -o remount /dev/sda / it does remount as rw but when I do mount -a (or I even tried mount -a -o remount) with fstab:



/dev/sda                 /                       ext4    defaults        1 1


it doesn't and / is mounted as ro. What is going on here?







linux mount fstab sysvinit






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zakrent is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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share|improve this question







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zakrent is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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zakrent is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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  • Are you sure you are trying to mount "/dev/sda" (the disk itself), not "/dev/sda1" / "/dev/sda2" (the first or other partitions on it)
    – Jaleks
    yesterday


















  • Are you sure you are trying to mount "/dev/sda" (the disk itself), not "/dev/sda1" / "/dev/sda2" (the first or other partitions on it)
    – Jaleks
    yesterday
















Are you sure you are trying to mount "/dev/sda" (the disk itself), not "/dev/sda1" / "/dev/sda2" (the first or other partitions on it)
– Jaleks
yesterday




Are you sure you are trying to mount "/dev/sda" (the disk itself), not "/dev/sda1" / "/dev/sda2" (the first or other partitions on it)
– Jaleks
yesterday










1 Answer
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You should mount partitions on your disk (e.g. /dev/sda1, /dev/sda2) to a certain folder, not disk by self.



However, it would be better if you replace the names of partitions with UUID's.
Use blkid to learn UUID's of your partitions on the disk.






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    1 Answer
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    up vote
    0
    down vote













    You should mount partitions on your disk (e.g. /dev/sda1, /dev/sda2) to a certain folder, not disk by self.



    However, it would be better if you replace the names of partitions with UUID's.
    Use blkid to learn UUID's of your partitions on the disk.






    share|improve this answer

























      up vote
      0
      down vote













      You should mount partitions on your disk (e.g. /dev/sda1, /dev/sda2) to a certain folder, not disk by self.



      However, it would be better if you replace the names of partitions with UUID's.
      Use blkid to learn UUID's of your partitions on the disk.






      share|improve this answer























        up vote
        0
        down vote










        up vote
        0
        down vote









        You should mount partitions on your disk (e.g. /dev/sda1, /dev/sda2) to a certain folder, not disk by self.



        However, it would be better if you replace the names of partitions with UUID's.
        Use blkid to learn UUID's of your partitions on the disk.






        share|improve this answer












        You should mount partitions on your disk (e.g. /dev/sda1, /dev/sda2) to a certain folder, not disk by self.



        However, it would be better if you replace the names of partitions with UUID's.
        Use blkid to learn UUID's of your partitions on the disk.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered 20 hours ago









        Gintoki

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