'Re: [Libguestfs] Guestfish command - "copy-out" not working for symbolic links'

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List:       libguestfs
Subject:    Re: [Libguestfs] Guestfish command - "copy-out" not working for symbolic links
From:       Nikolay Ivanets <stenavin () gmail ! com>
Date:       2019-06-29 7:49:21
Message-ID: CAHwdxNee2ZR7BQHZRh9iao7J7VK38xeT1raQwGL-7QD2bvyP1Q () mail ! gmail ! com
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I think that your link target does not exist.
I've made the following test configuration:

ll /etc
lrwxrwxrwx   1 root root     10 Jun 29 07:35 zzz -> /root/test
lrwxrwxrwx   1 root root     12 Jun 29 07:38 zzz1 -> ../root/test
lrwxrwxrwx   1 root root     18 Jun 29 07:39 zzz2 -> ../root/non-exists

/root/test is existing file.
/root/non-exists is not existent file.

The following commands works as expected:

download /etc/zzz /path/on/host/zzz
download /etc/zzz1 /path/on/host/zzz1

Next one fails:

download /etc/zzz2 /path/on/host/zzz2
libguestfs: error: download: /etc/zzz2: No such file or directory

Can you make sure link target exists? What is the output of this command?

exists /run/systemd/resolve/stub-resolv.conf

Can you download your target directly?

download /run/systemd/resolve/stub-resolv.conf /path/on/host/stub-resolv.conf

--
    +380979184774
    Mykola Ivanets

пт, 28 черв. 2019 о 23:30 Chintan Patel <chintan.r.patel@outlook.com> \
пише:
> 
> guestfish --ro -a /path/to/disk run : mount /dev/your-blkdev / :
> download /etc/resolv.conf /path/on/host/dst.file
> 
> Is also not working for symbolic link - as "/etc/resolv.conf" is symbolic link.
> ________________________________
> From: Nikolay Ivanets <stenavin@gmail.com>
> Sent: Friday, June 28, 2019 11:34 AM
> To: Chintan Patel
> Cc: Chintan Patel; libguestfs@redhat.com
> Subject: Re: [Libguestfs] Guestfish command - "copy-out" not working for symbolic \
> links 
> guestfish --ro -a /path/to/disk run : mount /dev/your-blkdev / :
> download /etc/resolv.conf /path/on/host/dst.file
> 
> --
> +380979184774
> Mykola Ivanets
> 
> пт, 28 черв. 2019 о 21:29 Nikolay Ivanets <stenavin@gmail.com> пише:
> > 
> > All API is exposed as gustfish commands
> > 
> > --
> > Mykola Ivanets
> > 
> > пт, 28 черв. 2019, 21:28 користувач Chintan Patel \
> > <chintan.r.patel@outlook.com> пише:
> > > 
> > > This no going to work.
> > > AS I told you I need something under guestfish command list not from guestfs \
> > > commands. 
> > > Thanks,
> > > Chintan
> > > ________________________________
> > > From: Nikolay Ivanets <stenavin@gmail.com>
> > > Sent: Friday, June 28, 2019 10:58 AM
> > > To: Chintan Patel
> > > Cc: Chintan Patel; libguestfs@redhat.com
> > > Subject: Re: [Libguestfs] Guestfish command - "copy-out" not working for \
> > > symbolic links 
> > > Chintan,
> > > 
> > > Use 'download' (http://libguestfs.org/guestfs.3.html#guestfs_download)
> > > 
> > > --
> > > Mykola Ivanets
> > > 
> > > пт, 28 черв. 2019, 18:55 користувач Chintan Patel \
> > > <chintan.r.patel@outlook.com> пише: 
> > > Hi Nikolay,
> > > 
> > > We use guestfish, so I preferred to use commands supported by guestfish.
> > > I tried as below but "realpath" is not working after I have the target path \
> > >                 from symlink.
> > > --> Check if the path has a symlink.
> > > is-symlink path
> > > Ex. - is-symlink "/etc/resolv.conf"   -> return true
> > > 
> > > --> If it's true then get target link path
> > > readlink path
> > > ex. - readlink "/etc/resolv.conf"  --> return \
> > > "../run/systemd/resolve/stub-resolv.conf" 
> > > --> Which return's target path but it's not a full path, so needs to get full \
> > > path to access the target file. Tried to use realpath as below using target \
> > > path from above return but it's giving None 
> > > ex. - realpath "../run/systemd/resolve/stub-resolv.conf"  --> return None
> > > 
> > > 
> > > Can you tell me how can I get the real path as without the full canonicalized \
> > > absolute path I can't do anything with that file. 
> > > 
> > > Thanks,
> > > Chintan
> > > ________________________________
> > > From: libguestfs-bounces@redhat.com <libguestfs-bounces@redhat.com> on behalf \
> > >                 of Nikolay Ivanets <stenavin@gmail.com>
> > > Sent: Friday, June 28, 2019 2:00 AM
> > > To: Chintan Patel
> > > Cc: libguestfs@redhat.com
> > > Subject: Re: [Libguestfs] Guestfish command - "copy-out" not working for \
> > > symbolic links 
> > > If it is one time operation you can call 'realpath'
> > > (http://libguestfs.org/guestfs.3.html#guestfs_realpath) first to
> > > resolve symlink.
> > > 
> > > --
> > > +380979184774
> > > Mykola Ivanets
> > > 
> > > пт, 28 черв. 2019 о 11:11 Chintan Patel <Chintan.Patel@microsoft.com> \
> > > пише:
> > > > 
> > > > HI,
> > > > 
> > > > I'm trying to use copu-out command to copy files from remote disk but it's \
> > > > not working if the file is symbolic link. 
> > > > copy-out giving an error like below.
> > > > libguestfs: error: ‘/etc/resolv.conf' is not a file or directory
> > > > This file is there but it's a symbolic link
> > > > 
> > > > Do you have any other way to copy remote symbolic link files?
> > > > 
> > > > Thanks,
> > > > 
> > > > Chintan
> > > > 
> > > > _______________________________________________
> > > > Libguestfs mailing list
> > > > Libguestfs@redhat.com
> > > > https://www.redhat.com/mailman/listinfo/libguestfs
> > > 
> > > _______________________________________________
> > > Libguestfs mailing list
> > > Libguestfs@redhat.com
> > > https://www.redhat.com/mailman/listinfo/libguestfs

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