Name the structure member to 'fsname' used to store strings like "ext2"
etc. This is equivalent to what was previously done in this commit:
a9f08ddc7d
Rename local variable to fsname in get_filesystem() (#741430)
Closes!52 - Rename members and variables currently named 'filesystem'
Previously made this change:
175d27c55d
Rename enum FILESYSTEM to FSType
Now complete the renaming exercise of members and variables currently
named 'filesystem'.
Closes!52 - Rename members and variables currently named 'filesystem'
In GParted_Core::set_device_partitions() the partition path is being
queried from libparted. However this is done before the switch
statement on the type of the partition, so is called for all libparted
partition objects including PED_PARTITION_FREESPACE and
PED_PARTITION_METADATA ones. As libparted numbers these partition
objects as -1, it returns paths like "/dev/sda-1".
Additionally when using GParted, with it's default DMRaid handling, on a
dmraid started array this results in paths like
"/dev/mapper/isw_ecccdhhiga_MyArray-1" being passed to
is_dmraid_device() and make_path_dmraid_compatible(). Fortunately
make_path_dmraid_compatible() does nothing and returns the same name.
Call chain looks like:
GParted_Core::set_device_partitions()
get_partition_path(lp_partition)
// where:
// lp_partition->disk->dev->path = "/dev/mapper/isw_ecccdhhiga_MyArray"
// lp_partition->type == PED_PARTITION_FREESPACE |
// PED_PARTITION_METADATA
// ->num == -1
ped_partition_get_path(lp_partition)
return "/dev/mapper/isw_ecccdhhiga_MyArray-1"
dmraid.is_dmraid_supported()
dmraid.is_dmraid_device("/dev/mapper/isw_ecccdhhiga_MyArray-1")
return true
dmraid.make_path_dmraid_compatible("/dev/mapper/isw_ecccdhhiga_MyArray-1")
return "/dev/mapper/isw_ecccdhhiga_MyArray-1"
Fix by moving the get_partition_path() call inside the switch statement
so that it is only called for PED_PARTITION_NORMAL,
PED_PARTITION_LOGICAL and PED_PARTITION_EXTENDED partition types.
Relevant commits:
* 53c49349f7
Simplify logic in set_device_partitions method
* 81986c0990
Ensure partition path name is compatible with dmraid (#622217)
This is not strictly necessary as members are already recognised using
blkid since this commit earlier in the sequence "Recognise ATARAID
members (#75)". However it makes sure active members are recognised
even if blkid is not available and matches how file system detection
queries the SWRaid_Info module.
Closes#75 - Errors with GPT on RAID 0 ATARAID array
This matches how the array device is displayed as the mount point for
mdadm started ATARAID members by "Display array device as mount point of
mdadm started ATARAID members (#75)" earlier in this patchset.
Extend the DMRaid module member cache to save the array device name and
use as needed to display as the mount point.
Closes#75 - Errors with GPT on RAID 0 ATARAID array
Again this is to stop GParted allowing overwrite operations being
performed on an ATARAID member while the array is actively using the
member. This time for dmraid started arrays using the kernel DM (Device
Mapper) driver.
The DMRaid module already uses dmraid to report active array names:
# dmraid -sa -c
isw_ecccdhhiga_MyArray
To find active members in this array, (1) use udev to lookup the kernel
device name:
# udevadm info --query=name /dev/mapper/isw_ecccdhhiga_MyArray
dm-0
(2) list the member names exposed by the kernel DM driver through the
/sys file system.
# ls /sys/block/dm-0/slaves
sdc sdd
# ls -l /sys/block/dm-0/slaves
lrwxrwxrwx 1 root root 0 Nov 24 09:52 sdc -> ../../../../pci0000:00/0000:00:0d.0/ata3/host2/target2:0:0/2:0:0:0/block/sdc
lrwxrwxrwx 1 root root 0 Nov 24 09:52 sdc -> ../../../../pci0000:00/0000:00:0d.0/ata4/host3/target3:0:0/3:0:0:0/block/sdd
Closes#75 - Errors with GPT on RAID 0 ATARAID array
When an ATARAID member is inactive allow basic supported actions of
copy and move to be performed like with other recognised but only basic
supported types.
Closes#75 - Errors with GPT on RAID 0 ATARAID array
Since earlier commit "Display array device as mount point of mdadm
started ATARAID members (#75)" GParted allows attempting to unmout a
busy ATARAID member as if it was a file system. This is not a valid
thing to do, so disallow it.
Closes#75 - Errors with GPT on RAID 0 ATARAID array
This matches how other non-file systems are handled, by displaying the
access reference in the mount point column. For LVM Physical Volumes
the Volume Group name is displayed [1] and for an active Linux Software
RAID array the array device is displayed [2].
[1] 8083f11d84
Display LVM2 VGNAME as the PV's mount point (#160787)
[2] f6c2f00df7
Populate member mount point with SWRaid array device (#756829)
Closes#75 - Errors with GPT on RAID 0 ATARAID array
This stops GParted allowing overwrite operations (such as create
partition table or format with a whole device file system) being
performed on an ATARAID member while the array is actively using the
member.
Closes#75 - Errors with GPT on RAID 0 ATARAID array
The previous commit, made mdadm recognised IMSM and DDF type ATARAID
members get displayed as "linux-raid" (Linux Software RAID array
member). This was because of query method 1 in detect_filesystems().
Fix this now by exposing and using the fstype of the member from the
SWRaid_Info cache.
Closes#75 - Errors with GPT on RAID 0 ATARAID array
Since mdadm release 3.0 (2009-06-02) [1] it has also supported external
metadata formats IMSM (Intel Matrix Storage Manager) and DDF, previously
only managed by dmraid.
A number of distributions have switched to use mdadm and kernel MD
(Multiple Devices) driver for managing these Firmware / BIOS / ATARAID
arrays. These include: Fedora >= 14 [2], RHEL / CentOS >= 6 [3],
SLES >= 12 [4], Ubuntu >= 16.04 LTS.
Therefore additionally parse members in these ATARAID arrays included in
mdadm output, and when activated using the kernel MD driver, in file
/proc/mdstat. Add fstype to the SWRaid_Info cache records to
distinguish members apart. So far the rest of the GParted code
continues to treat all members as FS_LINUX_SWRAID. This will be
resolved in following commits.
Note that this in no way affects how GParted shows and partitions the
array device itself, even those managed by dmraid and use the GParted
DMRaid module. It only affects how GParted shows the member drives
themselves.
[1] mdadm ANNOUNCE-3.0 file
https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/tree/ANNOUNCE-3.0?h=mdadm-3.0
[2] Fedora 14, Storage Administration Guide, 12.5. Linux RAID Subsystem
https://docs.fedoraproject.org/en-US/Fedora/14/html/Storage_Administration_Guide/raid-subsys.html
"... Fedora 14 uses mdraid with external metadata to access ISW /
IMSM (Intel firmware RAID) sets. mdraid sets are configured and
controlled through the mdadm utility."
[3] RHEL 6, Storage Administration Guide, 17.3. Linux RAID Subsystem
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/storage_administration_guide/raid-subsys
"mdraid also supports other metadata formats, known as external
metadata. Red Hat Enterprise Linux 6 uses mdraid with external
metadata to access ISW / IMSM (Intel firmware RAID) sets. mdraid
sets are configured and controlled through the mdadm utility."
[4] SUSE Linux Enterprise Server 12 Release Notes, 7.2.3 Driver for IMSM
and DDF
https://www.suse.com/releasenotes/x86_64/SUSE-SLES/12/#fate-316007
"For IMSM and DDF RAIDs the mdadm driver is used unconditionally."
Closes#75 - Errors with GPT on RAID 0 ATARAID array
PATCHSET OVERVIEW
A user had a Firmware / BIOS / ATARAID array of 2 devices configured as
a RAID 0 (stripe) set. On top of that was a GPT with the OS partitions.
GParted displays the following errors on initial load and subsequent
refresh:
Libparted Error
(-) Invalid argument during seek for read on /dev/sda
[ Retry ] [ Cancel ] [ Ignore ]
Libparted Error
(-) The backup GPT table is corrupt, but the
primary appears OK, so that will be used.
[ Ok ] [ Cancel ]
This is an Intel Software RAID array which stores metadata at the end of
each member device, and so the first 128 KiB stripe of the set is stored
in the first 128 KiB of the first member device /dev/sda which includes
the GPT for the whole RAID 0 device. Hence when libparted reads member
device /dev/sda it finds a GPT describing a block device twice it's
size and in results the above errors when trying to read the backup GPT.
A more dangerous scenario occurs when using 2 devices configured in an
Intel Software RAID 1 (mirrored) set with GPT on top. On refresh
GParted display this error for both members, /dev/sda and /dev/sdb:
Libparted Warning
/!\ Not all of the space available to /dev/sda appears to be used,
you can fix the GPT to use all of the space (an extra 9554
blocks) or continue with the current setting?
[ Fix ] [ Ignore ]
Selecting [Fix] gets libparted to re-write the backup GPT to the end of
the member device, overwriting the ISW metadata! Do that twice and both
copies of the metadata are gone!
Worked example of this more dangerous mirrored set case. Initial setup:
# dmraid -s
*** Group superset isw_caffbiaegi
--> Subset
name : isw_caffbiaegi_MyMirror
size : 16768000
stride : 128
type : mirror
status : ok
subsets: 0
devs : 2
spares : 0
# dmraid -r
/dev/sda: isw, "isw_caffbiaegi", GROUP, ok, 16777214 sectors, data@ 0
/dev/sdb: isw, "isw_caffbiaegi", GROUP, ok, 16777214 sectors, data@ 0
# wipefs /dev/sda
offset type
---------------------------------------------
0x200 gpt [partition table]
0x1fffffc00 isw_raid_member [raid]
Run GParted and click [Fix] on /dev/sda. Now the first member has gone:
# dmraid -s
*** Group superset isw_caffbiaegi
--> *Inconsistent* Subset
name : isw_caffbiaegi_MyMirror
size : 16768000
stride : 128
type : mirror
status : inconsistent
subsets: 0
devs : 1
spares : 0
# dmraid -r
/dev/sdb: isw, "isw_caffbiaegi", GROUP, ok, 16777214 sectors, data@ 0
# wipefs /dev/sda
offset type
---------------------------------------------
0x200 gpt [partition table]
Click [Fix] on /dev/sdb. Now all members of the array are gone:
# dmraid -s
no raid disks
# dmraid -r
no raid disks
# wipefs /dev/sdb
offset type
---------------------------------------------
0x200 gpt [partition table]
So GParted must not run libparted partition table scanning on the member
devices in ATARAID arrays. Only on the array device itself.
In terms of the UI GParted must show disks which are ATARAID members as
whole disk devices with ATARAID member content and detect array busy
status to avoid allowing active members from being overwritten while in
use.
THIS COMMIT
Recognise ATARAID member devices and display in GParted as whole device
"ataraid" file systems. Because they are recognised as whole device
content ("ataraid" file systems) this alone stops GParted running the
libparted partition table scanning and avoids the above errors.
The list of dmraid supported formats is matched by the signatures
recognised by blkid:
$ dmraid -l
asr : Adaptec HostRAID ASR (0,1,10)
ddf1 : SNIA DDF1 (0,1,4,5,linear)
hpt37x : Highpoint HPT37X (S,0,1,10,01)
hpt45x : Highpoint HPT45X (S,0,1,10)
isw : Intel Software RAID (0,1,5,01)
jmicron : JMicron ATARAID (S,0,1)
lsi : LSI Logic MegaRAID (0,1,10)
nvidia : NVidia RAID (S,0,1,10,5)
pdc : Promise FastTrack (S,0,1,10)
sil : Silicon Image(tm) Medley(tm) (0,1,10)
via : VIA Software RAID (S,0,1,10)
dos : DOS partitions on SW RAIDs
$ fgrep -h _raid_member util-linux/libblkid/src/superblocks/*.c
.name = "adaptec_raid_member",
.name = "ddf_raid_member",
.name = "hpt45x_raid_member",
.name = "hpt37x_raid_member",
.name = "isw_raid_member",
.name = "jmicron_raid_member",
.name = "linux_raid_member",
.name = "lsi_mega_raid_member",
.name = "nvidia_raid_member",
.name = "promise_fasttrack_raid_member",
.name = "silicon_medley_raid_member",
.name = "via_raid_member",
As they are all types of Firmware / BIOS / ATARAID arrays, report all
members as a single "ataraid" file system type. (Except for
"linux_raid_member" in the above blkid source listing which is Linux
Software RAID).
Closes#75 - Errors with GPT on RAID 0 ATARAID array
The HACKING file should be hints for making changes to the code base and
associated processes. A overview of how GParted handled unallocated
space was not that. Also now the size of a JFS is accurately calculated
using JFS as an example of a file system with intrinsic unallocated
space is no longer valid. Therefore removed from the HACKING file.
Instead add the original commit message as an extended comment to method
calc_significant_unallocated_sectors().
Closes!50 - Calculate JFS size accurately
With the same minimum sized 16 MiB JFS used in the previous commit, now
mounted, GParted once again reports 1.20 MiB of unallocated space. This
is because the kernel JFS driver is also just reporting the size of the
Aggregate Disk Map (dmap) as the size of the file system [1].
Fix by reading the on disk JFS superblock to calculate the size of the
file system, but query the free space from the kernel using statvfs().
Need to query mounted JFS free space from the kernel because the on disk
dmap is not updated immediately so doesn't reflect recently used or
freed disk space.
For example, start with the 16 MiB JFS empty and mounted.
# echo -e 'dmap\nx\nquit' | jfs_debugfs /dev/sdb1 | fgrep dn_nfree
[2] dn_nfree: 0x00000000eaa [10] dn_agwidth: 1
# df -k /mnt/1
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sdb1 15152 136 15016 1% /mnt/1
Write 10 MiB of data to it:
# dd if=/dev/zero bs=1M count=10 of=/mnt/1/file_10M
10+0 records in
10+0 records out
1048760 bytes (10 MB, 10 MiB) copied, 0.0415676 s, 252 MB/s
Query the file system free space from the kernel and by reading the on
disk dmap figure:
# df -k /mnt/1
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sdb1 15152 10376 4776 69% /mnt/1
# echo -e 'dmap\nx\nquit' | jfs_debugfs /dev/sdb1 | fgrep dn_nfree
[2] dn_nfree: 0x00000000eaa [10] dn_agwidth: 1
# sync
# echo -e 'dmap\nx\nquit' | jfs_debugfs /dev/sdb1 | fgrep dn_nfree
[2] dn_nfree: 0x00000000eaa [10] dn_agwidth: 1
# umount /mnt/1
# echo -e 'dmap\nx\nquit' | jfs_debugfs /dev/sdb1 | fgrep dn_nfree
[2] dn_nfree: 0x000000004aa [10] dn_agwidth: 1
The kernel reports the updated usage straight away, but the on disk dmap
record doesn't get updated even by sync, only after unmounting.
This is the same fix as was previously done for EXT2/3/4 [2].
[1] Linux jfs_statfs() function
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/fs/jfs/super.c?h=v3.10#n142
[2] 3828019030
Read file system size for mounted ext2/3/4 from superblock (#683255)
Closes!50 - Calculate JFS size accurately
Upstream NILFS project calls the package nilfs-utils [1][2]. Arch Linux
/ CentOS / Fedora / OpenSUSE use the upstream name. However Debian /
Ubuntu name it nilfs-tools [3] instead.
Document the needed software as:
nilfs-utils / nilfs-tools
Upstream name first separated by slash from alternative names
distributions use.
[1] NILFS Download page
https://nilfs.sourceforge.io/en/download.html
[2] NILFS Public Git Repositories
https://nilfs.sourceforge.io/en/git_repos.html
[3] Debian package: nilfs-tools
https://packages.debian.org/sid/nilfs-tools
Running JFS read usage test on Fedora 30 fails like this:
$ ./test_SupportedFileSystems --gtest_filter='*ReadUsage/jfs'
...
[ RUN ] My/SupportedFileSystemsTest.CreateAndReadUsage/jfs
unknown file: Failure
C++ exception with description "std::bad_alloc" thrown in the test body.
[ FAILED ] My/SupportedFileSystemsTest.CreateAndReadUsage/jfs, where GetParam() = 17 (41833 ms)
However the same test passes on Fedora 29, Fedora 31 Beta, CentOS 7,
Debian 10 and Ubuntu 18.04 LTS.
Also running GParted on Fedora 30 crashes just the same when reading JFS
usage:
# gparted
GParted 1.0.0
configuration --enable-libparted-dmraid --enable-online-resize
libparted 3.2
terminate called after throwing an instance of 'std::bad_alloc'
what(): std::bad_alloc
/usr/bin/gparted: line 202: 19218 Aborted (core dumped) $BASE_CMD
Running jfs_debugfs to query the file system usage the same way GParted
does produces an infinite amount of repeating output:
# echo dm | jfs_debugfs /dev/sdb1
So jfs_debugfs gets stuck in an infinite loop inside the dmap subcommand
when it encounters EOF. GParted and the read JFS usage test read this
output until memory is exhausted and crash. This is exactly what was
happening in closed bug 794947. Even installed jfsutils from Fedora 29
on Fedora 30 and visa versa. jfs_debugfs still produced an infinite
amount of output on Fedora 30 and worked correctly on Fedora 29. So
it's not the build of jfsutils, but something in the OS that is making
the difference!
Anyway fix by providing the instruction to exit from the dmap
subcommand, and quit from jfs_debugfs itself, like this:
# echo -e 'dmap\nx\nquit' | jfs_debugfs /dev/sdb1
Bug 794947 - gparted hangs when sees JFS partition on discovering
partitions
Closes!49 - Add file system interface tests
So far the read file system usage figures, read via the file system
interface classes using file system specific tools, have been checked to
the exact sector for:
0 <= used <= size
0 <= unused <= size
unallocated = 0
used + unused = size
However for JFS and NTFS this fails like this:
# ./test_SupportedFileSystems --gtest_filter='*ReadUsage/*' | fgrep ' ms'
[ OK ] My/SupportedFileSystemsTest.CreateAndReadUsage/btrfs (335 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndReadUsage/exfat (0 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndReadUsage/ext2 (38 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndReadUsage/ext3 (131 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndReadUsage/ext4 (32 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndReadUsage/f2fs (47 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndReadUsage/fat16 (19 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndReadUsage/fat32 (48 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndReadUsage/hfs (0 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndReadUsage/hfsplus (0 ms)
[ FAILED ] My/SupportedFileSystemsTest.CreateAndReadUsage/jfs, where GetParam() = 17 (73 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndReadUsage/linuxswap (20 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndReadUsage/luks (0 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndReadUsage/lvm2pv (410 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndReadUsage/minix (0 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndReadUsage/nilfs2 (226 ms)
[ FAILED ] My/SupportedFileSystemsTest.CreateAndReadUsage/ntfs, where GetParam() = 23 (56 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndReadUsage/reiser4 (49 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndReadUsage/reiserfs (139 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndReadUsage/udf (34 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndReadUsage/xfs (67 ms)
[----------] 21 tests from My/SupportedFileSystemsTest (1726 ms total)
[==========] 21 tests from 1 test case ran. (1726 ms total)
# ./test_SupportedFileSystems --gtest_filter='*ReadUsage/jfs:*ReadUsage/ntfs'
Running main() from test_SupportedFileSystems.cc
Note: Google Test filter = *ReadUsage/jfs:*ReadUsage/ntfs
[==========] Running 2 tests from 1 test case.
[----------] Global test environment set-up.
[----------] 2 tests from My/SupportedFileSystemsTest
[ RUN ] My/SupportedFileSystemsTest.CreateAndReadUsage/jfs
test_SupportedFileSystems.cc:465: Failure
Expected equality of these values:
m_partition.sectors_unallocated
Which is: 2472
0
test_SupportedFileSystems.cc:517: Failure
Expected equality of these values:
m_partition.sectors_used + m_partition.sectors_unused
Which is: 521816
m_partition.get_sector_length()
Which is: 524288
[ FAILED ] My/SupportedFileSystemsTest.CreateAndReadUsage/jfs, where GetParam() = 17 (36 ms)
[ RUN ] My/SupportedFileSystemsTest.CreateAndReadUsage/ntfs
test_SupportedFileSystems.cc:465: Failure
Expected equality of these values:
m_partition.sectors_unallocated
Which is: 8
0
test_SupportedFileSystems.cc:517: Failure
Expected equality of these values:
m_partition.sectors_used + m_partition.sectors_unused
Which is: 524280
m_partition.get_sector_length()
Which is: 524288
[ FAILED ] My/SupportedFileSystemsTest.CreateAndReadUsage/ntfs, where GetParam() = 23 (35 ms)
[----------] 2 tests from My/SupportedFileSystemsTest (71 ms total)
[----------] Global test environment tear-down
[==========] 2 tests from 1 test case ran. (72 ms total)
[ PASSED ] 0 tests.
[ FAILED ] 2 tests, listed below:
[ FAILED ] My/SupportedFileSystemsTest.CreateAndReadUsage/jfs, where GetParam() = 17
[ FAILED ] My/SupportedFileSystemsTest.CreateAndReadUsage/ntfs, where GetParam() = 23
2 FAILED TESTS
So JFS is reporting 2472 unallocated sectors in a size of 524288 sectors
and NTFS is reporting 8 unallocated sectors in the same size. This
exact issue is already solved for GParted so that it doesn't show a
small amount of unallocated space by commits [1][2] from Bug 499202 [3].
Fix the same way, use the accessors to the file system usage figures
which don't show unallocated space when it is below the significant
threshold.
[1] b5c80f18a9
Enhance calculation of significant unallocated space (#499202)
[2] 7ebedc4bb3
Don't show intrinsic unallocated space (#499202)
[3] Bug 499202 - gparted does not see the difference if partition size
differs from filesystem size
https://bugzilla.gnome.org/show_bug.cgi?id=499202Closes!49 - Add file system interface tests
Checking a MINIX V3 file system fails like this:
$ ./test_SupportedFileSystems --gtest_filter='*Check/minix'
...
[ RUN ] My/SupportedFileSystemsTest.CreateAndCheck/minix
test_SupportedFileSystems.cc:554: Failure
Value of: m_fs_object->check_repair(m_partition, m_operation_detail)
Actual: false
Expected: true
Operation details:
mkfs.minix -3 '/home/centos/programming/c/gparted/tests/test_SupportedFileSystems.img' 00:00:00 (SUCCESS)
87392 inodes
262144 blocks
Firstdatazone=5507 (5507)
Zonesize=1024
Maxsize=2147483647
fsck.minix '/home/centos/programming/c/gparted/tests/test_SupportedFileSystems.img' 00:00:00 (ERROR)
fsck.minix from util-linux 2.23.2
bad magic number in super-block
[ FAILED ] My/SupportedFileSystemsTest.CreateAndCheck/minix, where GetParam() = 21 (182 ms)
fsck.minix doesn't support checking MINIX V3 file systems until this
commit, first included in util-linux 2.27 released 2015-09-07.
https://git.kernel.org/pub/scm/utils/util-linux/util-linux.git/commit/?id=86a9f3dad58addb50eca9daa9d233827a005dad7
fsck.minix: add minix v3 support
CentOS 7 only includes util-linux 2.23.2 so is affected by this, however
Ubuntu 18.04 LTS includes util-linux 2.31.1 so is not affected.
Just always skip this test for now. Plan to re-enable later when the
oldest supported distributions and GitLab CI images include the needed
util-linux release.
Closes!49 - Add file system interface tests
The tests were failing like this:
$ ./test_SupportedFileSystems --gtest_filter='*CreateAndReadUUID/fat16'
....
[ RUN ] My/SupportedFileSystemsTest.CreateAndReadUUID/fat16
test_SupportedFileSystems.cc:552: Failure
Expected equality of these values:
m_partition.uuid.size()
Which is: 9
36U
Which is: 36
[ FAILED ] My/SupportedFileSystemsTest.CreateAndReadUUID/fat16, where GetParam() = 13 (45 ms)
This is because the test was expecting a full 36 character UUID as used
by Linux file systems. Also accept shorter 9 character "UUID"s as used
by FAT16/32 file systems.
Closes!49 - Add file system interface tests
For NILFS2 the read and write tests which use nilfs-tune all fail using
an image file, even when run as root, however the other tests succeed.
Selected output from the test program:
# ./test_SupportedFileSystems --gtest_filter='*/nilfs2' | fgrep ' ms'
[ OK ] My/SupportedFileSystemsTest.Create/nilfs2 (22 ms)
[ FAILED ] My/SupportedFileSystemsTest.CreateAndReadUsage/nilfs2, where GetParam() = 22 (31 ms)
[ FAILED ] My/SupportedFileSystemsTest.CreateAndReadLabel/nilfs2, where GetParam() = 22 (30 ms)
[ FAILED ] My/SupportedFileSystemsTest.CreateAndReadUUID/nilfs2, where GetParam() = 22 (30 ms)
[ FAILED ] My/SupportedFileSystemsTest.CreateAndWriteLabel/nilfs2, where GetParam() = 22 (37 ms)
[ FAILED ] My/SupportedFileSystemsTest.CreateAndWriteUUID/nilfs2, where GetParam() = 22 (39 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndCheck/nilfs2 (0 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndRemove/nilfs2 (0 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndGrow/nilfs2 (386 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndShrink/nilfs2 (345 ms)
[----------] 10 tests from My/SupportedFileSystemsTest (920 ms total)
[==========] 10 tests from 1 test case ran. (920 ms total)
nilfs-tune fails like this when given an image file:
# truncate -s 256M test.img
# mkfs.nilfs2 test.img
mkfs.nilfs2 (nilfs-utils 2.2.7)
Start writing file system initial data to the device
Blocksize:4096 Device:test.img Device Size:268435456
File system initialization succeeded !!
# nilfs-tune -l test.img
nilfs-tune 2.2.7
nilfs-tune: test.img: cannot open NILFS
# echo $?
1
However using nilfs-tune via a loop device works:
# losetup --show --find /dev/loop0
/dev/loop0
# nilfs-tune -l /dev/loop0
nilfs-tune 2.2.7
Filesystem volume name: (none)
Filesystem UUID: fc49912c-4d39-4672-8610-1e1185d0db5f
Filesystem magic number: 0x3434
Filesystem revision #: 2.0
Filesystem features: (none)
Filesystem state: valid
Filesystem OS type: Linux
Block size: 4096
...
So nilfs-tune only works with block devices. Fix by making these tests
require a loop device and therefore make them root only. Now these
tests are skipped as non-root user and pass as root.
Closes!49 - Add file system interface tests
File systems BTRFS, JFS, NILFS2 and XFS can only be resized while
mounted, but only root can mount file systems. Therefore these tests
fail. Also BTRFS resize uses 'btrfs filesystem show' to discover the
devid, which also fails as described in the previous commit message.
Note that root can mount a file system image directly, but that it
implicitly creates loop device:
# truncate -s 256M test.img
# mkfs.xfs test.img
# mount test.img /mnt/1
# fgrep /mnt/1 /proc/mounts
/dev/loop0 /mnt/1 xfs rw,seclabel,relatime,attr2,inode64,noquota 0 0
# losetup -a
/dev/loop0: [64768]:35826659 (/root/test.img)
Therefore make these tests root only and require an explicit loop
device. Now these file system resize tests succeed as root and are
skipped as non-root.
Closes!49 - Add file system interface tests
For BTRFS the read (and resize) tests fail when using an image file,
however the create, write and check tests pass. Selected output from
the test program:
$ ./test_SupportedFileSystems --gtest_filter='*/btrfs' | fgrep ' ms'
[ OK ] My/SupportedFileSystemsTest.Create/btrfs (43 ms)
[ FAILED ] My/SupportedFileSystemsTest.CreateAndReadUsage/btrfs, where GetParam() = 7 (95 ms)
[ FAILED ] My/SupportedFileSystemsTest.CreateAndReadLabel/btrfs, where GetParam() = 7 (158 ms)
[ FAILED ] My/SupportedFileSystemsTest.CreateAndReadUUID/btrfs, where GetParam() = 7 (164 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndWriteLabel/btrfs (164 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndWriteUUID/btrfs (132 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndCheck/btrfs (129 ms)
[ OK ] My/SupportedFileSystemsTest.CreateAndRemove/btrfs (0 ms)
[ FAILED ] My/SupportedFileSystemsTest.CreateAndGrow/btrfs, where GetParam() = 7 (155 ms)
[ FAILED ] My/SupportedFileSystemsTest.CreateAndShrink/btrfs, where GetParam() = 7 (97 ms)
[----------] 10 tests from My/SupportedFileSystemsTest (1137 ms total)
[==========] 10 tests from 1 test case ran. (1137 ms total)
The read operations fail because 'btrfs filesystem show' doesn't work on
am image file:
$ truncate -s 256M test.img
$ mkfs.btrfs test.img
btrfs-progs v4.9.1
See http://btrfs.wiki.kernel.org for more information.
Label: (null)
UUID: de1624ae-39bb-4796-aee4-7ee1fa24c06a
Node side: 16384
Sector size: 4096
Filesystem size: 256.00MiB
Block group profiles:
Data: single
Metadata: DUP
System: DUP
SSD detected: no
Incompat features: extref, skinny-metadata
Number of devices: 1
Devices:
ID SIZE PATH
1 256.00MiB test.img
$ btrfs filesystem show test.img
ERROR: not a valid btrfs filesystem: /home/centos/programming/c/gparted/tests/test.img
$ echo $1
1
Querying a BTRFS image file also fails as root:
$ su
Password:
# btrfs filesystem show test.img
ERROR: not a valid btrfs filesystem: /home/centos/programming/c/gparted/tests/test.img
# echo $1
1
However querying the BTRFS via a loop device succeeds:
# losetup --show --find test.img
/dev/loop0
# btrfs filesystem show /dev/loop0
Label: none uuid: de1624ae-39bb-4796-aee4-7ee1fa24c06a
Total devices 1 FS bytes used 112.00KiB
devid 1 size 256.00MiB used 88.00MiB path /root/test.img
There must be some kernel level BTRFS file system device discovery
happening because now after creating a loop device for the image file,
the BTRFS can be shown via the image file directly:
# btrfs filesystem show test.img
Label: none uuid: de1624ae-39bb-4796-aee4-7ee1fa24c06a
Total devices 1 FS bytes used 112.00KiB
devid 1 size 256.00MiB used 88.00MiB path /root/test.img
Anyway for the BTRFS reading tests make them required a loop device and
therefore root only. Now these tests are skipped as non-root user and
pass as root.
Addressing BTRFS resizing test failures will be handled in a following
commit.
Closes!49 - Add file system interface tests
Creating an LVM2 PV as a non-root user on an image file fails like this:
$ truncate -s 256M test.img
$ lvm pvcreate `pwd`/test.img
WARNING: Running as a non-root user. Functionality may be unavailable.
/run/lvm/lvmetad.socket: access failed: Permission denied
WARNING: Failed to connect to lvmetad. Falling back to device scanning.
/run/lock/lvm/P_orphans:aux: open failed: Permission denied
Can't get lock for orphan PVs.
$ echo $?
5
Trying the same as root also fails:
# truncate -s 256M test.img
# lvm pvcreate `pwd`/test.img
Device /root/test.img not found.
# echo $?
5
LVM seems strongly predicated on only using block devices [1]. LVM can
use loop devices though, but loop devices can only be created by root.
# truncate -s 256M test.img
# losetup -f --show `pwd`/test.img
/dev/loop0
# lvm pvcreate /dev/loop0
Physical volume "/dev/loop0" successfully created.
# echo $?
0
Make the LVM2 PV tests require user root and use loop device over the
test image. Tests for the other file system types still directly uses
the image file. This makes the LVM2 PV tests pass when run as root, or
successfully skipped when run as non-root.
[1] lvmconfig --typeconfig default --withcomments --withspace | less
From the "devices" section of the commented default configuration,
LVM uses block devices found below /dev, devices provided by udev
and/or found in sysfs.
Closes!49 - Add file system interface tests
Curtis Gedak