> "Chris" == Chris Murphy writes:
Chris> Since the SD Card spec references a completely different command
Chris> than the ATA spec (TRIM), I don't think either one of these are
Chris> TRIM, even if functionally equivalent. Instead the SD Card
Chris> ERASE_* commands are probably being used,
I may have answered my own question using strace. And for whatever reason this
time fstrim worked.
fstrim
ioctl(3, FITRIM, 0x7fffbf6b87e0)
…
write(1, "/mnt/: 13.9 MiB (14598144 bytes)"…, 41/mnt/: 13.9 MiB (14598144
bytes) trimmed
Clearly this is only erasing what the file system is aware of ha
Short version:
When I mkfs.btrfs either an SD Card or an SSD, I get a response back to the
effect the whole device specified is trimmed. However, when I use fstrim on an
SD Card, I get an error that trim isn't supported. So I'm wondering if anyone
knows the difference between how fstrim is trimm
