Date: Tue, 5 Jun 2001 12:03:25 -0600 From: "Tim Pushor" <timp@crossthread.com> To: "Stephen Hovey" <shovey@buffnet.net> Cc: <questions@freebsd.org> Subject: Re: cpio weirdness Message-ID: <019601c0ede9$d4a63880$9828f99f@w2xzk60m01> References: <Pine.BSF.4.05.10106051150070.1128-100000@buffnet11.buffnet.net>
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Stephen, Looking at the manpage for pax it would seem that the default archive type is ustar. Will this allow backup of all filetypes? i.e. can you use this to do a full backup and restore? is pax included on either the mfsroot or fixit floppies? Thanks, Tim ----- Original Message ----- From: "Stephen Hovey" <shovey@buffnet.net> To: "Tim Pushor" <timp@crossthread.com> Cc: <questions@freebsd.org> Sent: Tuesday, June 05, 2001 9:50 AM Subject: Re: cpio weirdness > > I use pax with its defaults and avoid cpio - cpio tends to restore oddly, > like a counter can go off, puttin the end of some files at the top of > other files etc. > > On Tue, 5 Jun 2001, Tim Pushor wrote: > > > Stephen, > > > > Thanks for the response. > > > > I havn't used pax since my QNX days. > > > > So am I to assume then that you are using pax to write cpio compatible > > archives? > > > > Thanks, > > Tim > > ----- Original Message ----- > > From: "Stephen Hovey" <shovey@buffnet.net> > > To: "Tim Pushor" <timp@crossthread.com> > > Cc: <questions@FreeBSD.ORG> > > Sent: Tuesday, June 05, 2001 7:52 AM > > Subject: Re: cpio weirdness > > > > > > > > > > cpio has bugs - I switched to pax for that exact reason > > > > > > On Tue, 5 Jun 2001, Tim Pushor wrote: > > > > > > > Hello, > > > > > > > > I recently backed up a system using cpio so I could re-layout the > > > > filesystems, and then restore into the new filesystm setup. > > > > > > > > This is something I have done several times before. > > > > > > > > This time though, things went weird. Upon restore, many files were not > > > > properly restored (it is probably more accurate to say they were not > > backed > > > > up properly). > > > > > > > > The main symptom I see is that a bunch of files got created as (or > > linked > > > > to) device nodes. This is a portion of a directory listing of /usr/bin: > > > > > > > > -r-xr-xr-x 1 root wheel 5996 Jun 4 17:01 xargs > > > > -r-xr-xr-x 1 root wheel 7688 Jun 4 17:01 xstr > > > > crw-r----- 4 root operator 43, 0x00030002 Jun 4 17:01 yacc > > > > -r-xr-xr-x 1 root wheel 3120 Jun 4 17:01 yes > > > > -r-xr-xr-x 1 root wheel 4472 Jun 4 17:01 ypcat > > > > crw-r----- 8 root operator 13, 0x0004001a Jun 4 17:01 ypchfn > > > > crw-r----- 8 root operator 13, 0x0004001a Jun 4 17:01 ypchpass > > > > crw-r----- 8 root operator 13, 0x0004001a Jun 4 17:01 ypchsh > > > > -r-xr-xr-x 1 root wheel 4536 Jun 4 17:01 ypmatch > > > > crw-r----- 4 root operator 3, 0x00010002 Jun 4 17:01 yppasswd > > > > -r-xr-xr-x 1 root wheel 6384 Jun 4 17:01 ypwhich > > > > -r-xr-xr-x 1 root wheel 2475 Jun 4 17:01 yyfix > > > > crw-r----- 6 root operator 9, 6 Jun 4 17:01 zcat > > > > crw-r----- 4 root operator 9, 5 Jun 4 17:01 zcmp > > > > crw-r----- 4 root operator 9, 5 Jun 4 17:01 zdiff > > > > -r-xr-xr-x 6 root wheel 52132 Jun 4 17:01 zegrep > > > > -r-xr-xr-x 6 root wheel 52132 Jun 4 17:01 zfgrep > > > > -r-xr-xr-x 1 root wheel 919 Jun 4 17:01 zforce > > > > -r-xr-xr-x 6 root wheel 52132 Jun 4 17:01 zgrep > > > > -r-xr-xr-x 1 root wheel 1112 Jun 4 17:01 zmore > > > > -r-xr-xr-x 1 root wheel 3545 Jun 4 17:01 znew > > > > > > > > The cpio listing (cpio -ivt) for the errant files looks weird as well > > (note > > > > 0 bytes, but only 2 links): > > > > > > > > -r-xr-xr-x 2 root wheel 0 Apr 21 03:09 usr/bin/yacc > > > > > > > > > > > > The reason I am concerned is this is usually how I backup and restore > > > > systems. > > > > > > > > The OS in question is FreeBSD 4.3-RELEASE > > > > The CPIO command was quite simple. I first prepared a file list of files > > to > > > > backup, then performed: > > > > > > > > cat filelist | cpio -oH crc > backup.cpio > > > > > > > > I restored the archive using > > > > > > > > cpio -ivd < backup.cpio > > > > > > > > Thanks for any and all comments. > > > > Tim > > > > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > > > with "unsubscribe freebsd-questions" in the body of the message > > > > > > > > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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