On Wed, 13 Jun 2001, Roland McGrath wrote:
> > When mounting a floppy drive, however, I get: > > bytes_per_sector = 512 > > store->block_size = 1024 > > This is odd. Please try storeinfo and storeread on the floppy device. > (I presume you are using /dev/fd0 with the usual /hurd/storeio translator.) > See what that shows you, and with storeread you can actually try to read > 512 bytes from offset 512 and that just won't work if the block size is > really 1024. You can also try the same with dd on /dev/fd0. here is my result from storeinfo: hurd:~# storeinfo /dev/fd0 device (h_ro,enf): fd0: 1024: 1440: 1474560: 0+1440 If that's not weird enough (block size 1024), storeread works for --block-size=1024, but this is my output for --block-size=512: hurd:~# storeread --block-size=512 /dev/fd0 1 512 storeread: ../../libstore/rdwr.c:188: store_read: Assertion `(amount & (store->block_size - 1)) == 0' failed. this is pretty much the same error as in the case when trying to mount with fatfs it seems. perhaps this is just a weird disk -- I think it is a copy of a rescue disk distributed with a new PC, so perhaps there is some weirdness there. I will try a different fat12 disk and see what happens. Like I said, it works fine on hard drive partitions of bytes per sector=512. > > All the floppy drivers I can find use a block size of 512, so I am > confused. It might be that storeinfo will show you that you are really > using a file on your ext2fs filesystem (that happens to use 1k filesystem > blocks), meaning your storeio translator is not set up right, which would > make it all make sense. The device seems to work ok. dd gets an image of the floppy OK. If it works on "normal" disks, maybe I will put this bug on the backburner and work on r/w support. Thanks for the help, Tom
