Displaying 11 results from an estimated 11 matches for "first_lba".
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2019 Jan 20
5
[PATCH nbdkit 0/4] partition: Support MBR logical partitions.
This implements support for MBR logical partitions in
nbdkit-partition-filter, complementing existing support in the
partitioning plugin.
Rich.
2019 Feb 22
5
[PATCH nbdkit v3 0/4] Add linuxdisk plugin.
For v3 I reimplemented this using mke2fs -d. This obviously makes the
implementation a whole lot simpler, but cannot support multiple
directory merging.
Patches 1-3 are the same as before. I've also reproduced the notes
from v2 below.
v2:
- Fix inconsistent tab/space.
- All 3 plugins now contain a block of text pointing to the
other 2 plugins.
- TMDIR -> TMPDIR
- Unlink the
2019 Feb 19
6
[PATCH nbdkit v2 0/5] Add linuxdisk plugin.
Another interesting thing you can do with this plugin:
https://rwmj.wordpress.com/2019/02/19/nbdkit-linuxdisk-plugin/
v2:
- Fix inconsistent tab/space.
- All 3 plugins now contain a block of text pointing to the
other 2 plugins.
- TMDIR -> TMPDIR
- Unlink the temporary file and other cleanups along error paths.
- fclose -> pclose, and check the return value for errors.
-
2019 Feb 19
7
[PATCH nbdkit 0/4] New plugin: Add linuxdisk plugin.
Turns out Japanese trains are good for coding!
In supermin we have a bunch of code to create the libguestfs
appliance. It creates it directly using libext2fs (part of
e2fsprogs). We can use the same technique to create ext2 virtual
disks in nbdkit, which is what this new plugin does. Why a new plugin
instead of modifying the floppy plugin? See the 4/4 commit message
for an explanation.
The
2019 Feb 19
0
[PATCH nbdkit 1/4] common: Move some GPT functionality to a common directory.
...+ uint32_t nr_partition_entries;
+ uint32_t size_partition_entry;
+ uint32_t crc_partitions;
+};
+
+#define GPT_SIGNATURE "EFI PART"
+#define GPT_REVISION "\0\0\1\0" /* revision 1.0 */
+
+struct gpt_entry {
+ char partition_type_guid[16];
+ char unique_guid[16];
+ uint64_t first_lba;
+ uint64_t last_lba;
+ uint64_t attributes;
+ char name[72]; /* UTF-16LE */
+};
+
+/* GPT_MIN_PARTITIONS is the minimum number of partitions and is
+ * defined by the UEFI standard (assuming 512 byte sector size).
+ *
+ * In plugins such as the partitioning plugin, if we are requ...
2018 Jan 19
9
[PATCH nbdkit filters-v3 0/7] Introduce filters.
This is still tentative and needs a lot of work, but:
- partition filter works, supporting MBR & GPT
- prepare and finalize methods fixed
- open method can now be changed (allowing readonly flag to be modified)
- thread_model can be limited
I believe I made most of the changes which were previously suggested
in email. I think the only one I didn't was preventing inclusion of
both
2018 Sep 17
0
[PATCH nbdkit v3 3/3] Add partitioning plugin.
...truct region *region,
+ int bootable, char partition_type_guid[16],
+ unsigned char *out)
+{
+ size_t i, len;
+ const char *filename;
+ struct gpt_entry {
+ char partition_type_guid[16];
+ char unique_guid[16];
+ uint64_t first_lba;
+ uint64_t last_lba;
+ uint64_t attributes;
+ char name[72]; /* UTF-16LE */
+ } *entry = (struct gpt_entry *) out;
+
+ assert (sizeof (struct gpt_entry) == GPT_PT_ENTRY_SIZE);
+
+ memcpy (entry->partition_type_guid, partition_type_guid, 16);
+
+ memcpy (entry->uniqu...
2018 Sep 17
4
[PATCH nbdkit 0/3] Add partitioning plugin.
nbdkit partitioning boot.img swap.img root.img
... creates a virtual disk by adding a partition table.
In ancient times Xen used to do this.
Rich.
2018 Sep 17
7
[PATCH nbdkit v3 0/3] Add partitioning plugin.
The partitioning plugin patch is the same (except for rebasing).
However I have changed the first two patches based on feedback
received. In particular this fixes a very serious bug found by Eric
Blake in the current truncate filter.
Rich.
2019 Feb 22
0
[PATCH nbdkit v3 4/4] Add linuxdisk plugin.
...unsigned char *out)
+{
+ struct gpt_entry *entry = (struct gpt_entry *) out;
+
+ assert (sizeof (struct gpt_entry) == GPT_PT_ENTRY_SIZE);
+
+ memcpy (entry->partition_type_guid, partition_type_guid, 16);
+ memcpy (entry->unique_guid, guid, 16);
+
+ entry->first_lba = htole64 (region->start / SECTOR_SIZE);
+ entry->last_lba = htole64 (region->end / SECTOR_SIZE);
+ entry->attributes = htole64 (bootable ? 4 : 0);
+}
+
+static void
+create_gpt_partition_table (struct virtual_disk *disk, unsigned char *out)
+{
+ size_t j;
+
+ for (j = 0; j < nr_...
2019 Feb 19
0
[PATCH nbdkit 4/4] Add linuxdisk plugin.
...unsigned char *out)
+{
+ struct gpt_entry *entry = (struct gpt_entry *) out;
+
+ assert (sizeof (struct gpt_entry) == GPT_PT_ENTRY_SIZE);
+
+ memcpy (entry->partition_type_guid, partition_type_guid, 16);
+ memcpy (entry->unique_guid, guid, 16);
+
+ entry->first_lba = htole64 (region->start / SECTOR_SIZE);
+ entry->last_lba = htole64 (region->end / SECTOR_SIZE);
+ entry->attributes = htole64 (bootable ? 4 : 0);
+}
+
+static void
+create_gpt_partition_table (struct virtual_disk *disk, unsigned char *out)
+{
+ size_t j;
+
+ for (j = 0; j < nr_...