Re: skip bad block on QIC-150 tar
At Fri, Nov 02, 2007 at 12:00 , our malformed and occasionally flatulent friend [EMAIL PROTECTED] spewed forth this fount of brain juice: Message: 2 Date: Thu, 1 Nov 2007 22:35:43 -0800 From: Ted Mittelstaedt [EMAIL PROTECTED] Subject: RE: skip bad block in QIC-150 tar -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Thursday, November 01, 2007 11:10 AM I'm trying to recover some files from a 5 yr old tar on a QIC-150 tape. Unfortunately, there's a bad block on the tape; tar barfs and quits when it gets to it: tar: Unrecognized archive format: Inappropriate file type or format I managed to get a complete directory listing using tar t on my first attempt, before the tape became unreadable; it had to work at it but apparently managed to eventually get the block read. I've cleaned the tape and retried multiple times, to no avail. I've tried omitting the directory containing the bad block, but that hasn't prevented it from terminating. Anyone know a way to get around this? Untar from the non-rewinding device. When it hits the bad spot and aborts, just rerun tar again - it will start up the tape and forward it looking for the end of file mark that signifies the end of the current file and the beginning of the next. You may need to rerun it a couple times to get past the bad section. You can also use the mt fsf command to bump it forward. Ted And another method that I've used in similar cicrumstances, is to use 'dd' and then extract from the dd'ed files. When the failure occurs, then use the 'skip' funciton of dd to get past the bad section and save the next hunk.That might be something to try if the above suggestion does not work. Bill -- Bill Vermillion - bv @ wjv . com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: skip bad block in QIC-150 tar
At 02:10 PM 11/1/2007, [EMAIL PROTECTED] wrote: I'm trying to recover some files from a 5 yr old tar on a QIC-150 tape. Unfortunately, there's a bad block on the tape; tar barfs and quits when it gets to it: tar: Unrecognized archive format: Inappropriate file type or format I managed to get a complete directory listing using tar t on my first attempt, before the tape became unreadable; it had to work at it but apparently managed to eventually get the block read. I've cleaned the tape and retried multiple times, to no avail. I've tried omitting the directory containing the bad block, but that hasn't prevented it from terminating. Anyone know a way to get around this? Thanks, Gary I would try the other tar's (bsdtar, pax, etc.) and see what happens . . . Also check the man pages and see if there is a commandline option to continue after error. -Derek -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. MailScanner thanks transtec Computers for their support. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
RE: skip bad block in QIC-150 tar
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Thursday, November 01, 2007 11:10 AM To: freebsd-questions@freebsd.org Subject: skip bad block in QIC-150 tar I'm trying to recover some files from a 5 yr old tar on a QIC-150 tape. Unfortunately, there's a bad block on the tape; tar barfs and quits when it gets to it: tar: Unrecognized archive format: Inappropriate file type or format I managed to get a complete directory listing using tar t on my first attempt, before the tape became unreadable; it had to work at it but apparently managed to eventually get the block read. I've cleaned the tape and retried multiple times, to no avail. I've tried omitting the directory containing the bad block, but that hasn't prevented it from terminating. Anyone know a way to get around this? Untar from the non-rewinding device. When it hits the bad spot and aborts, just rerun tar again - it will start up the tape and forward it looking for the end of file mark that signifies the end of the current file and the beginning of the next. You may need to rerun it a couple times to get past the bad section. You can also use the mt fsf command to bump it forward. Ted ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
