Xperia Z, Lineage OS - How to have ext4 formatted external sd card?

[silverbluep]

I want to have ext4 formatted external sd card. My card is gpt formatted (tried with msdos too) to a ext4 partition, but im getting the 'this device doesnt support this sd card' warning, and asking to format the card. If i format it works fine, but as fat32. Any way I can fix this? This was the major point for me; to move to a fs with permissions.

 

[Zerikwan]

There is a way to format it through TWRP, but I never try it except for cache and system. You can try it and tell me, because I don't have a spare external micro SD card to try.
But remember, I'm just telling you the way. You are responsible for your sd card.

Wipe - advanced wipe - check "micro SD card" checkbox then repair or change file system - change file system - choose EXT4


BTW, my external sd card format is shown as vfat.

 

[silverbluep]

Will try this once i back it up; but it shouldnt be much different than doing it on the pc with gparted.

Vfat is the same with fat32 from whata i understand. At least mkfs with fat32 makes a vfat partition from my linux knowledge.

On my main phone, i formatted to ext4 and it worked fine (LOS 15.1 pioneer) but permission wise i still can't grant permissions (chmod doesnt change anything; i still iont get this whole cluster**** about sd cards and permissions) so i guess it doesnt help me either way. I could possibly fix problems by symlinking, but that is not allowed on the sd card uven when its ext4 (cannot create symlink using adb shell, phone wont let me ?)