Message ID | 20210427181010.1920534-1-jsnow@redhat.com |
---|---|
State | New |
Headers | show |
Series | [v2] fdc: fix floppy boot for Red Hat Linux 5.2 | expand |
On 4/27/21 2:10 PM, John Snow wrote: > The image size indicates it's an 81 track floppy disk image, which we > don't have a listing for in the geometry table. When you force the drive > type to 1.44MB, it guesses the reasonably close 18/80. When the drive > type is allowed to auto-detect or set to 2.88, it guesses a very > incorrect geometry. > > auto, 144 and 288 drive types get the right geometry with the new entry > in the table. > > Reported-by: Michael Tokarev <mjt@tls.msk.ru> > Signed-off-by: John Snow <jsnow@redhat.com> > Reviewed-by: Thomas Huth <thuth@redhat.com> > > --- > > V2: I didn't actually stage this, so this is just a re-send to get a > fresh Message-ID to reference in the PR. Added Thomas's R-B. > > hw/block/fdc.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/hw/block/fdc.c b/hw/block/fdc.c > index a825c2acbae..0f0c716d878 100644 > --- a/hw/block/fdc.c > +++ b/hw/block/fdc.c > @@ -122,6 +122,7 @@ static const FDFormat fd_formats[] = { > /* First entry is default format */ > /* 1.44 MB 3"1/2 floppy disks */ > { FLOPPY_DRIVE_TYPE_144, 18, 80, 1, FDRIVE_RATE_500K, }, /* 3.5" 2880 */ > + { FLOPPY_DRIVE_TYPE_144, 18, 81, 1, FDRIVE_RATE_500K, }, > { FLOPPY_DRIVE_TYPE_144, 20, 80, 1, FDRIVE_RATE_500K, }, /* 3.5" 3200 */ > { FLOPPY_DRIVE_TYPE_144, 21, 80, 1, FDRIVE_RATE_500K, }, > { FLOPPY_DRIVE_TYPE_144, 21, 82, 1, FDRIVE_RATE_500K, }, > Staged on my floppy branch. --js
diff --git a/hw/block/fdc.c b/hw/block/fdc.c index a825c2acbae..0f0c716d878 100644 --- a/hw/block/fdc.c +++ b/hw/block/fdc.c @@ -122,6 +122,7 @@ static const FDFormat fd_formats[] = { /* First entry is default format */ /* 1.44 MB 3"1/2 floppy disks */ { FLOPPY_DRIVE_TYPE_144, 18, 80, 1, FDRIVE_RATE_500K, }, /* 3.5" 2880 */ + { FLOPPY_DRIVE_TYPE_144, 18, 81, 1, FDRIVE_RATE_500K, }, { FLOPPY_DRIVE_TYPE_144, 20, 80, 1, FDRIVE_RATE_500K, }, /* 3.5" 3200 */ { FLOPPY_DRIVE_TYPE_144, 21, 80, 1, FDRIVE_RATE_500K, }, { FLOPPY_DRIVE_TYPE_144, 21, 82, 1, FDRIVE_RATE_500K, },