Hi, David Wright wrote: > it appears that any subsequent mount commands have to > agree explicitly with the earlier choice. Are there other, similar > factors involved in the OP's case…
Ah yes. I was similarly confused by my system's behavior on double mount and the fact that i remember to have needed mount -o loop for mounting two different ISO 9660 sessions on the same DVD. It seems that identical multi-mounts actually work like links to the same filesystem: # mount /dev/sdc2 /mnt/fat # mount /dev/sdc2 /mnt/fat2 # echo hallo >/mnt/fat/x # cat /mnt/fat/x hallo # cat /mnt/fat2/x hallo Greg Wooledge wrote: > The disappearance of one of the mounts from "df" output also tells me > that, if nothing else, "df" is not prepared to handle this situation. Or it avoids intentionally to represent one mounted filesystem as two. The code starting at https://sources.debian.org/src/coreutils/8.30-3/src/df.c/#L688 looks like considerations for possibly doing one of: /* Discard mount entry for existing device. */ /* Discard mount entry currently being processed. */ --------------------------------------------------------------------- But again, this is a deviation from the problem. Why does mount fail silently ? Why is bad luck attached only to the mount directory path /wa1 ? (Is the problem bound to mount(8) or does it sit in mount(2) ?) Have a nice day :) Thomas
