search for: whichpart

...n let me know if what I want to do is possible at all with syslinux; and possibly how to do it... Thanks, Cheers /// int main(int argc, char *argv[]) { char *mbr, *boot_sector = NULL; struct part_entry *partinfo; char *drivename, *partition, *endds, *endps, *waittotals; int hd, drive, whichpart; static com32sys_t inreg; /* In bss, so zeroed automatically */ int idd, idp, endd, endp; FILE *f; char *log = "/chsdlog.txt"; char logsc[1024]; char *logs = &logsc; char logrc[10240]; char *logr = &logrc; char inch[20]; int ix = 0; int waittotal; char c...

...instead of DL. Indulge them. * regs.ebx.b[0] = regs.edx.b[0] = drive; + /* grldr of Grub4dos wants the partition number in DH: + 0xff: whole drive + 0-3: primary partitions + 4-*: logical partitions + */ + if (opt.grldr) + regs.edx.b[1] = 0xff; + whichpart = 0; /* Default */ - if (partition) + if (partition) { whichpart = strtoul(partition, NULL, 0); + /* grldr of Grub4dos wants the partiton number in DH. */ + if (opt.grldr) + regs.edx.b[1] = whichpart -1; + } + if (!(drive & 0x80) &...

...rub) { + char *path; regs.ip = 0x200; /* jump 0x200 bytes into the loadfile */ + /* 89 bytes reserved for menu at offset 0x217 */ + path = zalloc(89); + + if (path && opt.grubmenu) { + char partition[5]; /* maximum is ",100" and up! */ + int len; + + if (whichpart > 1) + sprintf(partition, ",%d", whichpart - 1); + else + partition[0] = '\0'; + sprintf(path, "(%cd%d%s)/", + drive & 0x80 ? 'h': 'f', + (drive & 0x7), + partition); + len = strlen(path); + strncpy (path + len...

...* We only care about top-level partition, so we only need to change - * "part1" to the appropriate value: - * -1: whole drive (default) (-1 = 0xFF) - * 0-3: primary partitions - * 4-*: logical partitions - */ - stage2->install_partition.part1 = whichpart - 1; - - /* - * Grub Legacy reserves 89 bytes (from 0x8217 to 0x826f) for the - * config filename. The filename passed via grubcfg= will overwrite - * the default config filename "/boot/grub/menu.lst". - */ - if (opt.grubcfg) { - if (strlen(opt.grubcfg) > s...

1) code split and move Iterator related functionality is yanked from chain.c and moved to iterator.{c,h}. Both are moved to com32/chain and this way chain.c is ready for further splitting. Alternatively, partiter could be moved to com32/lib at any time in the future. It's potentially useful for other modules (e.g. if someone wanted to code partition dumper or editor). 2) Iterator updates

...at altlinux.ru> --- com32/modules/chain.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/com32/modules/chain.c b/com32/modules/chain.c index b790bd0..ec92cd0 100644 --- a/com32/modules/chain.c +++ b/com32/modules/chain.c @@ -228,7 +228,7 @@ find_logical_partition(int whichpart, char *table, struct part_entry *self, struct part_entry *found; int i; - if ( *(uint16_t *)(ptab + 0x1fe) != 0xaa55 ) + if ( *(uint16_t *)(table + 0x1fe) != 0xaa55 ) return NULL; /* Signature missing */ /* We are assumed to already having enumerated all the data partitions --...

...ition + * variable, located at memory address 0x8208. + * We only need to change the value of memory address 0x820a too: + * -1: whole drive (default) + * 0-3: primary partitions + * 4-*: logical partitions */ + ((uint8_t*) data[ndata].data)[0x20a] = (uint8_t)(whichpart - 1); } ndata++; -- 1.6.3.3

...only need to change + * "part1" to the appropriate value: + * -1: whole drive (default) (-1 = 0xFF) * 0-3: primary partitions - * 4-*: logical partitions */ + * 4-*: logical partitions + */ ((uint8_t*) data[ndata].data)[0x20a] = (uint8_t)(whichpart - 1); + + /* + * Grub Legacy reserves 89 bytes (from 0x8217 to 0x826f) for the + * config filename. The filename passed via grubcfg= will overwrite + * the default config filename "/boot/grub/menu.lst". + */ + if (opt.grubcfg && strlen(opt.grubcfg) <...

...only need to change + * "part1" to the appropriate value: + * -1: whole drive (default) (-1 = 0xFF) * 0-3: primary partitions - * 4-*: logical partitions */ + * 4-*: logical partitions + */ ((uint8_t*) data[ndata].data)[0x20a] = (uint8_t)(whichpart - 1); + + /* + * Grub Legacy reserves 89 bytes (from 0x8217 to 0x826f) for the + * config filename. The filename passed via grubcfg= will overwrite + * the default config filename "/boot/grub/menu.lst". + */ + if (opt.grubcfg && strlen(opt.grubcfg) <...

...t main(int argc, char *argv[]) struct mbr *mbr = NULL; char *p; struct disk_part_iter *cur_part = NULL; + void *sect_area = NULL, *file_area = NULL; + struct part_entry *hand_area = NULL; + struct syslinux_rm_regs regs; char *drivename, *partition; int hd, drive, whichpart = 0; /* MBR by default */ @@ -1523,6 +1531,7 @@ int main(int argc, char *argv[]) goto bail; } data[ndata].base = load_base; + file_area = (void *)data[ndata].data; load_base = 0x7c00; /* If we also load a boot sector */ /* Create boot info table: needed when you want to chainload @@...

This patch introduces extra functionality to chain.c, mainly with reference to BPB adjustments, but not only that. It expects 3 small patches I sent earlier (they are included for easy reference, patches 1-3/4). The changes introduced are: 1) file and boot sector use separate options to control load address and jump address (if applicable). Options are as described below: *