On 21 Apr 2005 at 22:56, Kern Sibbald wrote:
> > (For now this is a hypothetical question.)
> > I need to restore a backup from a write protected tape.
> > Bacula won't mount a write protected tape. bextract or bscan neither.
> I haven't tried it, but I suspect the solution is to modify your Device
> resource and set "Always Open = no", then run a restore. When the restore
> runs, it should open the drive as read-only. When you have "Always Open =
> yes", Bacula must open the drive read-write because it cannot know in advance
> if you are going to do read or write operations.
Well, I am in the position that I need to restore from a write protected tape
(DDS4). The tape is in a remote office location and no-one is able to go
onsite until next week, however we need to recover a few files from the tape
for someone working remotely (out of the country), asap.
# rpm -qa | grep bacula
bacula-sqlite-1.36.2-1
I do already have Always Open = no defined, yet, bextract and bscan, both
still barf with an error about Read-only filesystem.
It's been about 2 weeks so the tape data has been purged from the catalog
database. It was last written to on April 28.
# bscan -V Wednesday -v -s -m -c bacula-sd.conf /dev/nst0
bscan: butil.c:258 Using device: "/dev/nst0" for reading.
10-May 22:47 bscan: Fatal Error at dev.c:295 because:
dev.c:289 stored: unable to open device /dev/nst0: ERR=Read-only file system
10-May 22:47 bscan: Fatal Error at device.c:288 because:
dev open failed: dev.c:289 stored: unable to open device /dev/nst0: ERR=Read-
only file system
10-May 22:47 bscan: bscan Fatal error: butil.c:167 Cannot open /dev/nst0
# bextract -i chris.files -vv -V Wednesday /dev/nst0 /tmp/bacula-restore
bextract: butil.c:258 Using device: "/dev/nst0" for reading.
10-May 22:48 bextract: Fatal Error at dev.c:295 because:
dev.c:289 stored: unable to open device /dev/nst0: ERR=Read-only file system
10-May 22:48 bextract: Fatal Error at device.c:288 because:
dev open failed: dev.c:289 stored: unable to open device /dev/nst0: ERR=Read-
only file system
10-May 22:48 bextract: bextract Fatal error: butil.c:167 Cannot open
/dev/nst0
My device definition in bacula-sd.conf is
Device {
Name = DDS-4 #
Media Type = DDS-4
Archive Device = /dev/nst0
AutomaticMount = yes; # when device opened, read it
AlwaysOpen = no;
RemovableMedia = yes;
RandomAccess = no;
## Changer Command = "/etc/bacula/mtx-changer %c %o %S %a %d"
## Changer Device = /dev/sg0
## AutoChanger = yes
Alert Command = "sh -c 'tapeinfo -f %c |grep TapeAlert|cat'"
}
Any further suggestions
--
Harondel J. Sibble
Sibble Computer Consulting
Creating solutions for the small business and home computer user.
[EMAIL PROTECTED] (use pgp keyid 0x3AD5C11D) http://www.pdscc.com
(604) 739-3709 (voice/fax) (604) 686-2253 (pager)
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