Ask / Submit

No access to formatted sd-card [duplicate]

asked 2016-09-14 12:48:40 +0300

this post is marked as community wiki

This post is a wiki. Anyone with karma >75 is welcome to improve it.

updated 2016-09-14 23:06:26 +0300

czdosi gravatar image

I've formatted SD-card to ext4 within the smartphone and had no access to it. I did devel-su chown -R nemo:nemo /path/to/mounted/sdcard.

Did i do it right or wrong ?

This question is duplicating:

edit retag flag offensive reopen delete

The question has been closed for the following reason "duplicate question" by czdosi
close date 2016-09-14 23:02:00.452684


Can you elaborate about "no access"?

Giacomo Di Giacomo ( 2016-09-14 13:33:59 +0300 )edit

cannot create anything

Perfect_Gentleman ( 2016-09-14 13:34:51 +0300 )edit

Rather than chown, try a chmod 777 on the root of the card. It worked for me.

Giacomo Di Giacomo ( 2016-09-14 16:33:35 +0300 )edit

I had the same problem. After the same command, a reboot solved the problem and now I can read/write on card.

magullo ( 2016-09-14 16:44:06 +0300 )edit

I think changing the owner to the phone's user (chown nemo:nemo ) is better than making the card universally writeable by anything (chmod 0777)

DrYak ( 2016-09-14 18:56:57 +0300 )edit

1 Answer

Sort by » oldest newest most voted

answered 2016-09-14 13:22:29 +0300

Kromonos gravatar image

Looks right for me. You need to be root to format a card. That's normal linux behavour. Then, you had first to mount, then to change owner of the directory, as you did.

edit flag offensive delete publish link more



The same behaviour is expected for any other typical Unix filessystem beside ext4 (e.g.: btrfs, etc.) that stores access rights.

It doesn't happen with FAT32 / exFAT(*) as those don't have any concept of access rights and the sailfish OS' mounting daemon typically make it accessible for nemo:nemo (the default phone user).

(*) for licensing reason exFAT isn't supported out of the box. So one either need to reformart SD Cards >32GB, or one needs do install exFAT support from

DrYak ( 2016-09-14 19:00:29 +0300 )edit

Question tools

1 follower


Asked: 2016-09-14 12:48:40 +0300

Seen: 377 times

Last updated: Sep 14 '16