diff options
Diffstat (limited to 'sbin/newfs/mkfs.c')
| -rw-r--r-- | sbin/newfs/mkfs.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/sbin/newfs/mkfs.c b/sbin/newfs/mkfs.c index b736978..b7af4d2 100644 --- a/sbin/newfs/mkfs.c +++ b/sbin/newfs/mkfs.c @@ -121,6 +121,7 @@ mkfs(struct partition *pp, char *fsys) ino_t maxinum; int minfragsperinode; /* minimum ratio of frags to inodes */ char tmpbuf[100]; /* XXX this will break in about 2,500 years */ + struct fsrecovery fsr; union { struct fs fdummy; char cdummy[SBLOCKSIZE]; @@ -616,6 +617,25 @@ restart: MIN(sblock.fs_cssize - i, sblock.fs_bsize), ((char *)fscs) + i); /* + * Read the last sector of the boot block, replace the last + * 20 bytes with the recovery information, then write it back. + * The recovery information only works for UFS2 filesystems. + */ + if (sblock.fs_magic == FS_UFS2_MAGIC) { + i = bread(&disk, + part_ofs + (SBLOCK_UFS2 - sizeof(fsr)) / disk.d_bsize, + (char *)&fsr, sizeof(fsr)); + if (i == -1) + err(1, "can't read recovery area: %s", disk.d_error); + fsr.fsr_magic = sblock.fs_magic; + fsr.fsr_fpg = sblock.fs_fpg; + fsr.fsr_fsbtodb = sblock.fs_fsbtodb; + fsr.fsr_sblkno = sblock.fs_sblkno; + fsr.fsr_ncg = sblock.fs_ncg; + wtfs((SBLOCK_UFS2 - sizeof(fsr)) / disk.d_bsize, sizeof(fsr), + (char *)&fsr); + } + /* * Update information about this partition in pack * label, to that it may be updated on disk. */ |
