| Message ID | 1402327498-19669-1-git-send-email-psusi@ubuntu.com (mailing list archive) |
|---|---|
| State | Accepted, archived |
| Delegated to: | christophe varoqui |
| Headers | show |
Applied, thanks Christophe Varoqui www.opensvc.com On Mon, Jun 9, 2014 at 5:24 PM, Phillip Susi <psusi@ubuntu.com> wrote: > Extended partitions only get 2 sectors for 512 byte sector size, > to allow LILO the 1024 bytes of room it needs. Larger sector size > disks already have room and so only use 1 sector. > > Signed-off-by: Phillip Susi <psusi@ubuntu.com> > --- > kpartx/dos.c | 8 ++++++-- > 1 file changed, 6 insertions(+), 2 deletions(-) > > diff --git a/kpartx/dos.c b/kpartx/dos.c > index 0e57f0e..90ad3bd 100644 > --- a/kpartx/dos.c > +++ b/kpartx/dos.c > @@ -101,8 +101,12 @@ read_dos_pt(int fd, struct slice all, struct slice > *sp, int ns) { > break; > } > if (is_extended(p.sys_type)) { > - sp[i].size = sector_size_mul * 2; /* extended > partitions only get two > - sectors mapped for LILO to > install */ > + /* extended partitions only get one or > + two sectors mapped for LILO to install, > + whichever is needed to have 1kb of space */ > + if (sector_size_mul == 1) > + sp[i].size = 2; > + else sp[i].size = sector_size_mul; > n += read_extended_partition(fd, &p, i, sp+n, > ns-n); > } > } > -- > 1.9.1 > > -- > dm-devel mailing list > dm-devel@redhat.com > https://www.redhat.com/mailman/listinfo/dm-devel > -- dm-devel mailing list dm-devel@redhat.com https://www.redhat.com/mailman/listinfo/dm-devel
diff --git a/kpartx/dos.c b/kpartx/dos.c index 0e57f0e..90ad3bd 100644 --- a/kpartx/dos.c +++ b/kpartx/dos.c @@ -101,8 +101,12 @@ read_dos_pt(int fd, struct slice all, struct slice *sp, int ns) { break; } if (is_extended(p.sys_type)) { - sp[i].size = sector_size_mul * 2; /* extended partitions only get two - sectors mapped for LILO to install */ + /* extended partitions only get one or + two sectors mapped for LILO to install, + whichever is needed to have 1kb of space */ + if (sector_size_mul == 1) + sp[i].size = 2; + else sp[i].size = sector_size_mul; n += read_extended_partition(fd, &p, i, sp+n, ns-n); } }
Extended partitions only get 2 sectors for 512 byte sector size, to allow LILO the 1024 bytes of room it needs. Larger sector size disks already have room and so only use 1 sector. Signed-off-by: Phillip Susi <psusi@ubuntu.com> --- kpartx/dos.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)