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ext4, ssd, discard option

(2 posts) (1 voice)

• Started 11 years ago by christophe
• Latest reply from christophe
• This topic is not resolved

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1. 

   christophe
   

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   I am installing / on an ssd

   Is /etc/init.d/rcS the right place to add a noatime,discard option when remounting / ?

   Posted 11 years ago #
2. 

   christophe
   

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   i did try, and it seems to work

   However it seems / is mounted as ext2 ?
   I tried both from an ext3 and ext4 fs and i get

   tux@slitaz:~$ mount
   rootfs on / type rootfs (rw)
   /dev/root on / type ext2 (rw,noatime,barrier=1,data=ordered)

   Why is it mounted as ext2 ? (or shows as such: i read that barrier is an ext3 option ?)
   Can I safely remount it as ext4 in /etc/init.d/rcS with option discard
   and can I safely assume that trim will be supported as it should ? (the fs is ext4 and on a SSD)

   Thanks

   Posted 11 years ago #

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