Displaying 6 results from an estimated 6 matches for "gpt_min_partit".
2019 Feb 19
0
[PATCH nbdkit 1/4] common: Move some GPT functionality to a common directory.
...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 requested to
+ * allocate more than GPT_MIN_PARTITIONS then we increase the
+ * partition table in chunks of this size. Not...
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 22
0
[PATCH nbdkit v3 4/4] Add linuxdisk plugin.
...;
+ }
+ header->first_usable_lba = htole64 (34);
+ header->last_usable_lba = htole64 (nr_lbas - 34);
+ if (is_primary)
+ header->partition_entries_lba = htole64 (2);
+ else
+ header->partition_entries_lba = htole64 (nr_lbas - 33);
+ header->nr_partition_entries = htole32 (GPT_MIN_PARTITIONS);
+ header->size_partition_entry = htole32 (GPT_PT_ENTRY_SIZE);
+ header->crc_partitions =
+ htole32 (efi_crc32 (pt, GPT_PT_ENTRY_SIZE * GPT_MIN_PARTITIONS));
+
+ /* Must be computed last. */
+ header->crc = htole32 (efi_crc32 (header, sizeof *header));
+}
+
+static void
+create...
2019 Feb 19
0
[PATCH nbdkit 4/4] Add linuxdisk plugin.
...;
+ }
+ header->first_usable_lba = htole64 (34);
+ header->last_usable_lba = htole64 (nr_lbas - 34);
+ if (is_primary)
+ header->partition_entries_lba = htole64 (2);
+ else
+ header->partition_entries_lba = htole64 (nr_lbas - 33);
+ header->nr_partition_entries = htole32 (GPT_MIN_PARTITIONS);
+ header->size_partition_entry = htole32 (GPT_PT_ENTRY_SIZE);
+ header->crc_partitions =
+ htole32 (efi_crc32 (pt, GPT_PT_ENTRY_SIZE * GPT_MIN_PARTITIONS));
+
+ /* Must be computed last. */
+ header->crc = htole32 (efi_crc32 (header, sizeof *header));
+}
+
+static void
+create...