Commit Graph

198 Commits

Author SHA1 Message Date
Marcel Moolenaar
b9fdaa9b19 Remove inclusion of <sys/diskmbr.h>. We have no business knowing
anything related to MBR in this file.
2013-08-04 21:00:22 +00:00
Marcel Moolenaar
3bd22a9cc8 Change the set and unset ctlreqs by making the index argument optional.
This allows setting attributes on tables. One simply does not provide
an index in that case. Otherwise the entry corresponding the index has
the attribute set or unset.

Use this change to fix a relatively longstanding bug in our GPT scheme
that's the result of rev 198097 (relatively harmless) followed by rev
237057 (damaging). The damaging part being that our GPT scheme always
has the active flag set on the PMBR slice. This is in violation with
EFI. Existing EFI implementions for both x86 and ia64 reject the GPT.
As such, GPT disks created by us aren't usable under EFI because of
that.

After this change, GPT disks never have the active flag set on the PMBR
slice. In order to make the GPT disk bootable under some x86 BIOSes,
the reason of rev 198097, one must now set the active attribute on the
gpt table. The kernel will apply this to the PMBR slice For (S)ATA:
	gpart set -a active ada0

To fix an existing GPT disk that has the active flag set in the PMBR,
and that does not need the flag, use (again for (S)ATA):
	gpart unset -a active ada0

The EBR, MBR & PC98 schemes, which also impement at least 1 attribute,
now check to make sure the entry passed is valid. They do not have
attributes that apply to the table.
2013-06-09 23:34:26 +00:00
Marcel Moolenaar
0f4389991c Remove stub implementation. 2013-06-09 23:12:43 +00:00
Konstantin Belousov
db7bfaa8ce The geom_part provider supports unmapped bio iff the underlying
provider does so, since geom_part never inspects the bio_data.

Sponsored by:	The FreeBSD Foundation
Tested by:	pho
2013-03-19 14:50:24 +00:00
Gavin Atkinson
10f29053d2 Support the FAT16 partition type in gpart(8)
PR:		kern/174714
Submitted by:	4721 at hushmail dot com
MFC after:	1 week
2013-03-07 22:32:41 +00:00
Andriy Gapon
a90c9dfeab g_part_taste: directly destroy consumer and geom here, no need for withering
Besides withered but still alive consumers may interfere with
re-tatsing.

MFC after:	16 days
2012-10-06 19:52:50 +00:00
Ed Schouten
24d1105dde Remove unneeded G_PF_CANDELETE flag.
This flag is only used by GEOM so it can be propagated to the character
device's SI_CANDELETE. Unfortunately, SI_CANDELETE seems to do nothing.
2012-08-28 19:28:31 +00:00
Alexander Motin
3631c6382f Implement media change notification for DA and CD removable media devices.
It includes three parts:
 1) Modifications to CAM to detect media media changes and report them to
disk(9) layer. For modern SATA (and potentially UAS) devices it utilizes
Asynchronous Notification mechanism to receive events from hardware.
Active polling with TEST UNIT READY commands with 3 seconds period is used
for incapable hardware. After that both CD and DA drivers work the same way,
detecting two conditions: "NOT READY: Medium not present" after medium was
detected previously, and "UNIT ATTENTION: Not ready to ready change, medium
may have changed". First one reported to disk(9) as media removal, second
as media insert/change. To reliably receive second event new
AC_UNIT_ATTENTION async added to make UAs broadcasted to all periphs by
generic error handling code in cam_periph_error().
 2) Modifications to GEOM core to handle media remove and change events.
Media removal handled by spoiling all consumers attached to the provider.
Media change event also schedules provider retaste after spoiling to probe
new media. New flag G_CF_ORPHAN was added to consumers to reflect that
consumer is in process of destruction. It allows retaste to create new
geom instance of the same class, while previous one is still dying.
 3) Modifications to some GEOM classes: DEV -- to report media change
events to devd; VFS -- to handle spoiling same as orphan to prevent
accessing replaced media. PART class already handles spoiling alike to
orphan.

Reviewed by:	silence on geom@ and scsi@
Tested by:	avg
Sponsored by:	iXsystems, Inc. / PC-BSD
MFC after:	2 months
2012-07-29 11:51:48 +00:00
Edward Tomasz Napierala
a1cf7f75a6 Make it possible to resize opened partitions.
Sponsored by:	FreeBSD Foundation
2012-07-20 17:51:20 +00:00
Andrey V. Elsukov
d4746e107f Always reconstruct partition entries in the PMBR when Boot Camp is
disabled. This helps to easily recover from situations when PMBR is
damaged and contains no entries.

MFC after:	1 week
2012-06-14 11:17:54 +00:00
Marcel Moolenaar
f24a8224b2 Add a partition type for nandfs to the apm, bsd, gpt and vtoc8 schemes.
The gpart alias for these partition types is "freebsd-nandfs".
2012-05-25 20:33:34 +00:00
Dmitry Morozovsky
b20e4de387 VMware environments are not unusual now. Add VMware partitions recognition
(both MBR for ESXi <= 4.1 and GPT for ESXi 5) to g_part.

Reviewed by:	ae
Approved by:	ae
MFC after:	2 weeks
2012-04-18 11:59:03 +00:00
Andrey V. Elsukov
ba289b84b0 VMDB offset should be greater than logical volume size only for MBR. 2012-03-29 07:29:27 +00:00
Andrey V. Elsukov
1c45872b03 Do proper cleanup for the GPT case when an error occurs. 2012-03-29 06:37:02 +00:00
Andrey V. Elsukov
472794bb9f Check that scheme is not already registered. This may happens when a
KLD is preloaded with loader(8) and leads to infinity loops.

Also do not return EEXIST error code from MOD_LOAD handler, because
we have undocumented(?) ability replace kernel's module with preloaded one.
And if we have so, then preloaded module will be initialized first.
Thus error in MOD_LOAD handler will be triggered for the kernel.

PR:		kern/165573
MFC after:	3 weeks
2012-03-23 07:26:17 +00:00
Andrey V. Elsukov
f1104f7190 Add CTLFLAG_TUN to sysctls.
MFC after:	1 month
2012-03-19 13:21:10 +00:00
Andrey V. Elsukov
37d1a121d9 Add new GEOM_PART_LDM module that implements the Logical Disk Manager
scheme. The LDM is a logical volume manager for MS Windows NT and it
is also known as dynamic volumes. It supports about 2000 partitions
and also provides the capability for software RAID implementations.

This version implements only partitioning scheme capability and based
on the linux-ntfs project documentation and several publications across
the Web. NOTE: JBOD, RAID0 and RAID5 volumes aren't supported.

An access to the LDM metadata is read-only. When LDM is on the disk
partitioned with MBR we can also destroy metadata. For the GPT
partitioned disks destroy action is not supported.

Reviewed by:	ivoras (previous version)
MFC after:	1 month
2012-03-19 13:14:44 +00:00
Andrey V. Elsukov
422783e365 Make kern.geom.part node not static. Also add CTLFLAG_TUN to the
check_integrity sysctl.

MFC after:	1 month
2012-03-19 12:57:52 +00:00
Andrey V. Elsukov
5284aff594 Add MODULE_DEPEND() to geom_part modules.
MFC after:	2 weeks
2012-03-15 08:39:10 +00:00
Ed Maste
972f6945b8 Remove unactionable message about label geometry
It's not clear to a user what they should do after seeing the "geometry
does not match label" kernel message, and it does not appear to present
a problem in practice.  Thus, just remove the messages.

Approved by:	marcel
2012-03-08 01:48:44 +00:00
Andrey V. Elsukov
5357f27569 If nested scheme allows dump kernel to its partition, we may allow
dump for the parent partition too.

MFC after:	2 weeks
2012-02-20 06:35:52 +00:00
Andrey V. Elsukov
c3f9f306d2 Add alias for the partition type 0x0f. Now "ebr" name is used for both
types 0x05 and 0x0f, but 0x05 is preferred and used when partition is
created with "gpart add -t ebr ...".
This should keep EBR partitions accessible after r231754 for those,
who have EBR on the partition with type 0x0f.
2012-02-20 05:48:57 +00:00
Andrey V. Elsukov
3bcf7d7191 Add additional check to EBR probe and create methods:
don't try probe and create  EBR scheme when parent partition type
is not "ebr". This fixes error messages about corrupted EBR for
some partitions where is actually another partition scheme.

NOTE: if you have EBR on the partition with different than "ebr"
(0x05) type, then you will lost access to partitions until it will be
changed.

MFC after:	2 weeks
2012-02-15 10:33:29 +00:00
Andrey V. Elsukov
0d8bc07eba Add PART::type attribute handler. It returns partition type as string.
MFC after:	2 weeks
2012-02-15 10:02:19 +00:00
Andrey V. Elsukov
48ef46e55a Add alias for the partition with type 0x42 to the MBR scheme.
MFC after:	1 week
2012-02-10 09:55:18 +00:00
Andrey V. Elsukov
f44d97bd0c Let's be more realistic and limit maximum number of partition to 4k.
MFC after:	1 week
2012-02-10 06:44:30 +00:00
Ed Maste
23f6856fff Correct typo in comment (numbver) 2012-02-04 18:14:39 +00:00
Andrey V. Elsukov
7b540236bb The scheme code may not know about some inconsistency in the metadata.
So, add an integrity check after recovery attempt.

MFC after:	1 week
2012-02-01 09:28:16 +00:00
Nathan Whitehorn
090dd24636 Experimental support for booting CHRP-type PowerPC systems from hard disks. 2012-01-25 03:37:39 +00:00
Don Lewis
b5bad28182 Allow an MBR primary or extended Linux swap partition to be specified
as the system dump device.  This was already allowed for GPT.  The Linux
swap metadata at the beginning of the partition should not be disturbed
because the crash dump is written at the end.

Reviewed by:	alfred, pjd, marcel
MFC after:	2 weeks
2012-01-13 18:32:56 +00:00
Andrey V. Elsukov
a85a0d469e Add an ability to increase number of allocated APM entries when we
have reserved free space in the APM area.
Also instead of one write request per each APM entry, use MAXPHY
sized writes when we are updating APM.

MFC after:	1 month
2011-11-28 16:07:26 +00:00
Andrey V. Elsukov
64c4a83782 The size of APM could be bigger than number of already allocated entries.
And the first usable sector should not start from the inside of APM area.

MFC after:	1 month
2011-11-28 12:38:24 +00:00
Ed Schouten
6472ac3d8a Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.
The SYSCTL_NODE macro defines a list that stores all child-elements of
that node. If there's no SYSCTL_DECL macro anywhere else, there's no
reason why it shouldn't be static.
2011-11-07 15:43:11 +00:00
Andrey V. Elsukov
aea26bc05a Our geom withering function could take some time before geom with its
providers and consumers will be destroyed.  Before take some actions
with a geom, check that it is not destroyed at the moment.

Tested by:	nwhitehorn
MFC after:	1 week
2011-10-28 11:45:24 +00:00
Marcel Moolenaar
369fe59de8 Add support for Boot Camp. The support is defined as follows:
o   Detect when Boot Camp is enabled (i.e. the MBR mirrors the GPT).
o   When Boot Camp is enabled, update the MBR whenever we write the GPT.
o   Creation of a Boot Camp enabled GPT is not supported.
o   Automatically disable Boot Camp when the GPT has been changed so that
    there's either no EFI partition or no HFS+ partition.
o   The first 4 partitions (by index) get mirrored in the MBR.

Requested by, discussed with and tested by: kris@pcbsd.org
MFC after: 1 week
2011-10-23 02:51:23 +00:00
Marius Strobl
479a4ef021 Allow to dump on Solaris swap partitions.
PR:		161764
Submitted by:	Peter Jeremy
2011-10-18 20:16:02 +00:00
Andrey V. Elsukov
2b9be05588 Initialize elements of state array when creating the GPT table.
This fixes the problem, when the secondary GPT header is not erased when
partition table destroyed. Move equal operations from g_part_gpt_create
and g_part_gpt_recover to the separate function g_gpt_set_defaults.

Reported by:	dwhite
MFC after:	1 week
2011-06-29 05:41:14 +00:00
Andrey V. Elsukov
671dfdbf11 EBR could contain an early stage of boot code. But we do not support it.
Remove message about non empty bootcode, we can not break something
while GEOM_PART_EBR_COMPAT is defined.

But without GEOM_PART_EBR_COMPAT any changes in EBR are allowed and we
can accidentally wipe the boot code. To do not break anything save
the first EBR chunk and keep it untouched each time when we are
changing EBR. Note that we are still not support boot code for EBR.

PR:		kern/141235
MFC after:	1 month
2011-06-27 12:42:48 +00:00
Andrey V. Elsukov
61162e857a MS Windows NT+ uses 4 bytes at offset 0x1b8 in the MBR to identify
disk drive. The boot0cfg(8) utility preserves these 4 bytes when is
writing bootcode to keep a multiboot ability.
Change gpart's bootcode method to keep DSN if it is not zero. Also
do not allow writing bootcode with size not equal to MBRSIZE.

PR:		kern/157819
Tested by:	Eir Nym
MFC after:	1 month
2011-06-27 10:42:06 +00:00
Andrey V. Elsukov
503e6682cd Change the way how we update bootcode for BSD scheme.
Since the only parameter that we check is size of bootcode, then
allow only two sizes: size of boot1 and size of /boot/boot.
This partially protects users from losing ability to boot if incorrect
bootcode is specified.

Requested by:	ru
2011-06-20 12:22:30 +00:00
Andrey V. Elsukov
38c64884ff Add diagnostic message about not aligned partitions.
Idea from:	ivoras
2011-06-03 06:58:24 +00:00
Andrey V. Elsukov
9854b4eeee Some partitioning tools may have a different opinion about disk
geometry and partitions may start from withing the first track.
If we found such partitions, then do not reserve space of the
first track, only first sector.
2011-05-27 06:37:42 +00:00
Andrey V. Elsukov
6fd1e2e013 Do not truncate available disk space to the closest track boundary. 2011-05-25 09:45:13 +00:00
Andrey V. Elsukov
23a3490034 Do not truncate available disk space to the closest track boundary. 2011-05-25 09:38:12 +00:00
Andrey V. Elsukov
db48d4a92e Do not truncate available disk space to the closest track boundary. 2011-05-25 09:32:19 +00:00
Andrey V. Elsukov
49d12fd5be Remove unused variable.
MFC after:	1 week
2011-05-24 06:46:07 +00:00
Andrey V. Elsukov
e471361279 Remove unused variable.
MFC after:	1 week
2011-05-24 06:44:16 +00:00
Andrey V. Elsukov
d0c8ecb812 Make diagnostic messages more specific. With bootverbose print out
all inconsistencies of integrity in the partition table, not first
found only.

Requested by:	kib
2011-05-16 15:59:50 +00:00
Andrey V. Elsukov
b6c4978f6f Add diagnostic messages for integrity checks. 2011-05-16 12:00:32 +00:00
Andrey V. Elsukov
6e81b75a3c Add a sysctl kern.geom.part.check_integrity for those who has corrupt
partition tables and lost an ability to boot after r221788.
Also unhide an error message from bootverbose, this would help to
easier determine the problem.
2011-05-15 20:03:54 +00:00