(Thanks)Re: cp -a
Hi all! I would like to thank everybody who answered my question, I could not reply before cause I'm on exams :-( Cheers, Ulisses -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word "unsubscribe" to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: cp -a
On Sat, 24 Jan 1998, Brandon Mitchell wrote: > > Weird, I did this not two days ago, cp -avRx /* . and it died on some > > file, I thought it was /dev or a fifo? > > Say "." is /tmp. When you get to copying /tmp, you will get into > recursion with /tmp/tmp being everything that you have copied into /tmp > including the directory /tmp/tmp which will become /tmp/tmp/tmp... I > usually make sure to get every directory but the one I'm copying into. Or > using a rescue disk to I can have /mnt1 and /mnt2. Or using a tar that > won't traverse mount points, etc... Actually it was /mnt/Linux and I was using the -x option to only traverse one disk :> My memory must be going or something :> Jason -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word "unsubscribe" to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: cp -a
> Weird, I did this not two days ago, cp -avRx /* . and it died on some > file, I thought it was /dev or a fifo? Say "." is /tmp. When you get to copying /tmp, you will get into recursion with /tmp/tmp being everything that you have copied into /tmp including the directory /tmp/tmp which will become /tmp/tmp/tmp... I usually make sure to get every directory but the one I'm copying into. Or using a rescue disk to I can have /mnt1 and /mnt2. Or using a tar that won't traverse mount points, etc... HTH, Brandon -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word "unsubscribe" to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: cp -a
On Sun, 25 Jan 1998, Remco Blaakmeer wrote: > > I disagree. > > # cp -ax /dev /tmp > # cd /tmp/dev > # ls -l hda log ttyS0 xconsole > brw-rw 1 root disk 3, 0 Aug 4 20:36 hda > srw-rw-rw- 1 root root0 Jan 24 16:43 log > crw-rw 1 root dialout4, 64 Jan 25 02:54 ttyS0 > prw-r--r-- 1 root root0 Jan 25 02:54 xconsole > # > > Seems fine to me. Weird, I did this not two days ago, cp -avRx /* . and it died on some file, I thought it was /dev or a fifo? That begs the question, what was wrong with that machine? :< Jason -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word "unsubscribe" to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: cp -a
On Sat, 24 Jan 1998, Jason Gunthorpe wrote: > > On Sun, 25 Jan 1998, Remco Blaakmeer wrote: > > > > cd / > > > mount /dev/somedisk /mnt > > > cp -a * /mnt > > > > > > See the mess? ( /mnt/mnt/mnt/... ) > > > > You could add the -x switch. This skips subdirectories that are not on the > > same filesystem as the directories you are copying. > > > > cp -ax / /mnt > > Trouble is that cp -ax will not copy /dev it treats them as normal files, > it might also have problems with fifos and sockets.. > > tar -cl / | tar -x /mnt > > Doesn't have these problems though I disagree. # cp -ax /dev /tmp # cd /tmp/dev # ls -l hda log ttyS0 xconsole brw-rw 1 root disk 3, 0 Aug 4 20:36 hda srw-rw-rw- 1 root root0 Jan 24 16:43 log crw-rw 1 root dialout4, 64 Jan 25 02:54 ttyS0 prw-r--r-- 1 root root0 Jan 25 02:54 xconsole # Seems fine to me. Remco -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word "unsubscribe" to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: cp -a
On Sun, 25 Jan 1998, Remco Blaakmeer wrote: > > cd / > > mount /dev/somedisk /mnt > > cp -a * /mnt > > > > See the mess? ( /mnt/mnt/mnt/... ) > > You could add the -x switch. This skips subdirectories that are not on the > same filesystem as the directories you are copying. > > cp -ax / /mnt Trouble is that cp -ax will not copy /dev it treats them as normal files, it might also have problems with fifos and sockets.. tar -cl / | tar -x /mnt Doesn't have these problems though Jason -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word "unsubscribe" to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: cp -a
On Sat, 24 Jan 1998, Santiago Vila Doncel wrote: > -BEGIN PGP SIGNED MESSAGE- > > On Fri, 23 Jan 1998, Ulisses Alonso Camaro wrote: > > I would like to know why cp -aR is not useful to replicate a disk > > Since cp -a [*] is useful to replicate a disk, I think you are really > asking "I would like to know why some people seem to prefer tar or cpio > to replicate a disk". > > Well, I don't know the answer, but in either case, you have often to be > careful to avoid infinite recursive copying: > > cd / > mount /dev/somedisk /mnt > cp -a * /mnt > > See the mess? ( /mnt/mnt/mnt/... ) You could add the -x switch. This skips subdirectories that are not on the same filesystem as the directories you are copying. cp -ax / /mnt would only copy the root filesystem to /mnt and not things like /proc, an accidentally mounted floppy or a /usr which is on a different filesystem. If /usr is on a different filesystem, simply do cp -ax / /usr /mnt to copy both filesystems to /mnt . Remco -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word "unsubscribe" to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: cp -a
-BEGIN PGP SIGNED MESSAGE- On Fri, 23 Jan 1998, Ulisses Alonso Camaro wrote: > I would like to know why cp -aR is not useful to replicate a disk Since cp -a [*] is useful to replicate a disk, I think you are really asking "I would like to know why some people seem to prefer tar or cpio to replicate a disk". Well, I don't know the answer, but in either case, you have often to be careful to avoid infinite recursive copying: cd / mount /dev/somedisk /mnt cp -a * /mnt See the mess? ( /mnt/mnt/mnt/... ) [*] -a does already include -R, see cp --help. -BEGIN PGP SIGNATURE- Version: 2.6.3i Charset: latin1 iQCVAgUBNMpAZSqK7IlOjMLFAQF24QQAkAsItNB+VDPCUEiuushF/QoZYbHQjAXD NNRCJpICk9NENYCxGqC2glHs0ETdzTyfe+TWmVkQ3AiNTAsras+Cva9tbi/6U75Z CZF9TV2zWb9Rm/5Zfw3Yv+axh2/uGv/IrVtVoL0R2PsSG2t0YTsz0v71x/quT3q+ tlDT7l6qu9A= =dkH7 -END PGP SIGNATURE- -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word "unsubscribe" to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
