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| author | Richard Jones <rjones@redhat.com> | 2010-06-01 15:27:57 +0100 |
|---|---|---|
| committer | Richard Jones <rjones@redhat.com> | 2010-06-01 15:29:09 +0100 |
| commit | 21c42e9fabf6cea3d564e338a314479ef120502a (patch) | |
| tree | 97e48add7879ae56e9f59850dad43a168f5dff34 | |
| parent | 85c71f8fff3e80f549342bf995b686ba7303c2b4 (diff) | |
| download | libguestfs-21c42e9fabf6cea3d564e338a314479ef120502a.tar.gz libguestfs-21c42e9fabf6cea3d564e338a314479ef120502a.tar.xz libguestfs-21c42e9fabf6cea3d564e338a314479ef120502a.zip | |
daemon: Kill blkid cache to improve reliability of blkid commands.
By killing the cache file, we make blkid work in situations such
as a just-created filesystem.
| -rw-r--r-- | daemon/blkid.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/daemon/blkid.c b/daemon/blkid.c index 1ddc8cdf..a6197308 100644 --- a/daemon/blkid.c +++ b/daemon/blkid.c @@ -33,6 +33,13 @@ get_blkid_tag (const char *device, const char *tag) char *out, *err; int r; + /* Kill the cache file, forcing blkid to reread values from the + * original filesystems. In blkid there is a '-p' option which is + * supposed to do this, but (a) it doesn't work and (b) that option + * is not supported in RHEL 5. + */ + unlink ("/etc/blkid/blkid.tab"); + r = command (&out, &err, "blkid", "-o", "value", "-s", tag, device, NULL); if (r == -1) { |