[caiman-discuss] active partition setting

[Martin Bochnig]

On Mon, Jul 20, 2009 at 9:34 PM, Alexander Eremin<eremin at milax.org> wrote:
> Hi all,
> Is there are any way to set Solaris partition active without fdisk file?
> I know partition number - for example 2, so I try:
> ...
> prepare_fdisk_target ...
> uint8_t *pactive;
>
> pactive[1]=128;
>
> if
> (nvlist_add_uint8_array(target_attrs,
> ? ? ? ? ? ?TI_ATTR_FDISK_PART_ACTIVE, pactive, 2) != 0) {
> (void) fprintf(stderr, "Couldn't add TI_ATTR_FDISK_PART_ACTIVE to nvlist
> \n");
> return(-1);
> }
> ?and then call ? ti_create_target,etc.
>
>
> No errors after executing, but partition still is not active.
> I tested with test_ti, but it required fdisk file for work.
> Of course I can call "parted --script /dev/dsk/c2t0d0p0 ?set 2 boot"
> but I want to do this in C ;)
>
>
>
> --
>
> ::alhazred




Hi Alexander, all,

so ... , in the past alone fdisk would have been used for it. So one
would look there for the corresponding C-code.
Now with gparted, is it not "C"? On OpenSolaris one can now reference
libparted (cmds and functionality are split).

http://cvs.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libparted/common/libparted/disk.c



   1128 /**
   1129  * Set the state (\c 1 or \c 0) of a flag on a partition.
   1130  *
   1131  * Flags are disk label specific, although they have a global
   1132  * "namespace": the flag PED_PARTITION_BOOT, for example, roughly means
   1133  * "this" partition is bootable". But this means different
things on different
   1134  * disk labels (and may not be defined on some disk labels).
For example,
   1135  * on MS-DOS disk labels, there can only be one boot partition, and this
   1136  * refers to the partition that will be booted from on startup. On PC98
   1137  * disk labels, the user can choose from any bootable
partition on startup.
   1138  *
   1139  * \note It is an error to call this on an unavailable flag -- use
   1140  * ped_partition_is_flag_available() to determine which flags
are available
   1141  * for a given disk label.
   1142  *
   1143  * \throws PED_EXCEPTION_ERROR if the requested flag is not
available for this
   1144  *      label.
   1145  */
   1146 int
   1147 ped_partition_set_flag (PedPartition* part, PedPartitionFlag
flag, int state)
   1148 {
   1149         PedDiskOps*     ops;
   1150
   1151         PED_ASSERT (part != NULL, return 0);
   1152         PED_ASSERT (part->disk != NULL, return 0);
   1153         PED_ASSERT (ped_partition_is_active (part), return 0);
   1154
   1155         ops = part->disk->type->ops;
   1156         PED_ASSERT (ops->partition_set_flag != NULL, return 0);
   1157         PED_ASSERT (ops->partition_is_flag_available != NULL, return 0);
   1158
   1159         if (!ops->partition_is_flag_available (part, flag)) {
   1160                 ped_exception_throw (
   1161                         PED_EXCEPTION_ERROR,
   1162                         PED_EXCEPTION_CANCEL,
   1163                         "The flag '%s' is not available for %s disk 
labels.",
   1164                         ped_partition_flag_get_name (flag),
   1165                         part->disk->type->name);
   1166                 return 0;
   1167         }
   1168
   1169         return ops->partition_set_flag (part, flag, state);
   1170 }
   1171
   1172 /**
   1173  * Get the state (\c 1 or \c 0) of a flag on a partition.
   1174  *
   1175  * See ped_partition_set_flag() for conditions that must hold.
   1176  *
   1177  * \todo Where's the check for flag availability?
   1178  */
   1179 int
   1180 ped_partition_get_flag (const PedPartition* part, PedPartitionFlag flag)
   1181 {
   1182         PED_ASSERT (part != NULL, return 0);
   1183         PED_ASSERT (part->disk != NULL, return 0);
   1184         PED_ASSERT (part->disk->type->ops->partition_get_flag != NULL,
   1185                     return 0);
   1186         PED_ASSERT (ped_partition_is_active (part), return 0);
   1187
   1188         return part->disk->type->ops->partition_get_flag (part, flag);
   1189 }
   1190


Are you integrating the new curses based installer into MilaX, or something??
'looking forward to it        :)




Delayed delays are delayed delays,
deferrals are deferrals,
neiter is necessarily THE END.
And in my / Natamar's case not only "necessarily"  ...

--
Regards,
Martin Bochnig