Bug 35989
| Summary: | 720KB floppies unusable | ||
|---|---|---|---|
| Product: | Base System | Reporter: | jtm63 <jtm63> |
| Component: | kern | Assignee: | freebsd-bugs (Nobody) <bugs> |
| Status: | Closed FIXED | ||
| Severity: | Affects Only Me | ||
| Priority: | Normal | ||
| Version: | 4.5-PRERELEASE | ||
| Hardware: | Any | ||
| OS: | Any | ||
State Changed From-To: open->feedback Does this problem still occur in more recent releases? Does using the /dev/fd0.720 device for newfs help? State Changed From-To: feedback->closed Feedback timeout |
720K floppies cannot be mounted or used fdformat /dev/fd0.720 works newfs /dev/fd0 fd720 returns: Warning: Block size restricts cylinders per group to 6. Warning: 2656 sector(s) in last cylinder unallocated /dev/fd0: 1440 sectors in 1 cylinders of 1 tracks, 4096 sectors 0.7MB in 1 cyl groups (6 c/g, 12.00MB/g, 384 i/g) super-block backups (for fsck -b #) at: write error: 1439 newfs: wtfs - writecombine: Input/output error OR newfs_msdos /dev/fd0 fd720 /dev/fd0: 1400 sectors in 175 FAT12 clusters (4096 bytes/cluster) bps=512 spc=8 res=1 nft=2 rde=512 sec=1440 mid=0xf0 spf=1 spt=9 hds=2 hid=0 newfs_msdos: /dev/fd0: Input/output error Mounting filesystems doesn't work either: mount_msdos /dev/fd0c /mnt mount_msdos: /dev/fd0c: Input/output error I tested four different disks and the disks with existing filesystems were readable on a Smith Corona word processor. 1.44MB floppies work as expected. All the floppies with existing file systems were readable in the 3.x branch, which was the last time I tried them. How-To-Repeat: Try to mount or newfs a 720KB floppy.