I've hit this as well. 2.26 is available in Wily, so any fixes here
would be to trusty. It seems like a major rewrite wouldn't be backported
in the SRU process though. So this might have to remain unfixed in the
LTS unless somebody wants to ferret out the problem and make a smaller
patch just for 2.20.
** Changed in: util-linux (Ubuntu)
Status: New => Confirmed
** Changed in: util-linux (Ubuntu)
Importance: Undecided => High
** Changed in: util-linux (Ubuntu)
Status: Confirmed => Fix Released
** Also affects: util-linux (Ubuntu Trusty)
Importance: Undecided
Status: New
** Changed in: util-linux (Ubuntu Trusty)
Status: New => Triaged
** Changed in: util-linux (Ubuntu Trusty)
Importance: Undecided => High
--
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to util-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1481158
Title:
sfdisk gets cylinder calculation wrong when using sectors
Status in util-linux package in Ubuntu:
Fix Released
Status in util-linux source package in Trusty:
Triaged
Bug description:
If you try and specify the starting offset for the partition in
sectors and ask sfdisk to use the rest of the disk (with "+"), sfdisk
will incorrectly calculate the end cylinders and not create the
partition. For example
---
# dd if=/dev/zero of=/tmp/disk.img bs=1M count=10
# losetup -f /tmp/disk.img
# sfdisk -uS /dev/loop1 <<EOF
2048 + L *
0 0;
0 0;
0 0;
EOF
Checking that no-one is using this disk right now ...
BLKRRPART: Invalid argument
OK
Disk /dev/loop1: cannot get geometry
Disk /dev/loop1: 1 cylinders, 255 heads, 63 sectors/track
sfdisk: ERROR: sector 0 does not have an msdos signature
/dev/loop1: unrecognized partition table type
Old situation:
No partitions found
New situation:
Warning: The partition table looks like it was made
for C/H/S=*/71/5 (instead of 1/255/63).
For this listing I'll assume that geometry.
Units = sectors of 512 bytes, counting from 0
Device Boot Start End #sectors Id System
/dev/loop1p1 * 2048 20479 18432 83 Linux
start: (c,h,s) expected (5,54,4) found (0,32,33)
end: (c,h,s) expected (57,48,5) found (1,70,5)
/dev/loop1p2 0 - 0 0 Empty
/dev/loop1p3 0 - 0 0 Empty
/dev/loop1p4 0 - 0 0 Empty
Warning: partition 1 does not end at a cylinder boundary
end of partition 1 has impossible value for cylinders: 1 (should be in 0-0)
sfdisk: I don't like these partitions - nothing changed.
(If you really want this, use the --force option.)
---
Using the --force flag writes out the correct partitions. I also note
this is fixed in 2.26, which has a large rewrite of sfdisk and uses
sectors by default
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/1481158/+subscriptions
--
Mailing list: https://launchpad.net/~touch-packages
Post to : touch-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~touch-packages
More help : https://help.launchpad.net/ListHelp
