diff options
Diffstat (limited to 'lib/libdisk/rules.c')
-rw-r--r-- | lib/libdisk/rules.c | 89 |
1 files changed, 78 insertions, 11 deletions
diff --git a/lib/libdisk/rules.c b/lib/libdisk/rules.c index 73a321c..1ea9ca8 100644 --- a/lib/libdisk/rules.c +++ b/lib/libdisk/rules.c @@ -6,7 +6,7 @@ * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp * ---------------------------------------------------------------------------- * - * $Id: rules.c,v 1.9 1995/05/08 01:34:31 phk Exp $ + * $Id: rules.c,v 1.10.2.1 1995/06/03 08:40:33 jkh Exp $ * */ @@ -179,22 +179,44 @@ Rule_003(struct disk *d, struct chunk *c, char *msg) /* * Rule#4: * Max seven 'part' as children of 'freebsd' - * Max one FS_SWAP child per 'freebsd' * Max one CHUNK_IS_ROOT child per 'freebsd' + * If Bad144, space for table must exist. + * If Bad144 & root, bad144 table must be inside 1024 */ void Rule_004(struct disk *d, struct chunk *c, char *msg) { - int i=0,j=0,k=0; + int i=0,k=0; struct chunk *c1; + u_long l; if (c->type != freebsd) return; + + if (c->flags & CHUNK_BAD144) { + l = c->end - 127 - d->bios_sect + 1; + for (c1=c->part; c1; c1=c1->next) { + if (c1->end < l || c1->type == unused) + continue; + sprintf(msg+strlen(msg), + "Blocks %lu to %lu are needed for bad144 information, but isn't unused.\n", + l, c->end); + break; + } + if (c->flags & CHUNK_PAST_1024) { + for (c1=c->part; c1; c1=c1->next) { + if (c1->flags & CHUNK_IS_ROOT) { + sprintf(msg+strlen(msg), + "You have assigned root to a slice which uses bad144, and\n extends past the first 1023 cylinders, and thus cannot be booted from.\n"); + break; + } + } + } + } + for (c1=c->part; c1; c1=c1->next) { if (c1->type != part) continue; - if (c1->subtype == FS_SWAP) - j++; if (c1->flags & CHUNK_IS_ROOT) { k++; if (c1->flags & CHUNK_PAST_1024) @@ -205,15 +227,11 @@ Rule_004(struct disk *d, struct chunk *c, char *msg) } if (i > 7) { sprintf(msg+strlen(msg), - "Max seven 'part' per 'freebsd' chunk\n"); - } - if (j > 1) { - sprintf(msg+strlen(msg), - "Max one subtype=FS_SWAP child per 'freebsd' chunk\n"); + "Max seven partitions per freebsd slice\n"); } if (k > 1) { sprintf(msg+strlen(msg), - "Max one CHUNK_IS_ROOT child per 'freebsd' chunk\n"); + "Max one root partition child per freebsd slice\n"); } } @@ -247,3 +265,52 @@ CheckRules(struct disk *d) return strdup(msg); return 0; } + +char * +ChunkCanBeRoot(struct chunk *c) +{ + struct chunk *c1; + struct disk *d = c->disk; + char msg[BUFSIZ]; + + *msg = '\0'; + if (c->flags & CHUNK_PAST_1024) { + strcat(msg, +"The root partition must end before cylinder 1024 seen from\n"); + strcat(msg, +"the BIOS' point of view, or it cannot be booted from.\n"); + return strdup(msg); + } + for (c1=d->chunks->part;;) { + for (; c1; c1=c1->next) + if (c1->offset <= c->offset && c1->end >= c->end) + break; + if (!c1) { + strcat(msg, +"Internal trouble, cannot find this chunk in the chunk-tree\n"); + return strdup(msg); + } + if (c1->type == freebsd) + break; + c1 = c1->part; + } + + if (c1->type != freebsd) { + strcat(msg, +"The root partition must be in a FreeBSD slice, otherwise\n"); + strcat(msg, +"the kernel cannot be booted from it\n"); + return strdup(msg); + } + + if ((c1->flags & CHUNK_BAD144) && (c1->flags & CHUNK_PAST_1024)) { + strcat(msg, +"This partition is unsuitable for root, because the FreeBSD slice\n"); + strcat(msg, +"it is inside has bad144 enabled, but the badblock data lives past\n"); + strcat(msg, +"the 1024th cylinder, and the bootblocks cannot get to it there.\n"); + return strdup(msg); + } + return NULL; +} |