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[Jay2k1 <1714045@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Using mylvmbackup 0.15, if you for example set "mycnf=/etc/mysql/my.cnf"
but that file is a symlink, like my.cnf -> /etc/alternatives/my.cnf, the
operation fails with

Error: Could not copy /etc/mysql/my.cnf to /var/cache/mylvmbackup/mnt
/backup-cnf-20170830_183218_mysql: File exists

strace:

lstat("/etc/mysql/my.cnf", {st_mode=S_IFLNK|0777, st_size=24, ...}) = 0
readlink("/etc/mysql/my.cnf", "/etc/alternatives/my.cnf", 4095) = 24
stat("/etc/alternatives/my.cnf", {st_mode=S_IFREG|0644, st_size=869, ...}) = 0
readlink("/etc/mysql/my.cnf", "/etc/alternatives/my.cnf", 4095) = 24
symlink("/etc/alternatives/my.cnf", "/var/cache/mylvmbackup/mnt/backup-cnf-20170830_183218_mysql") = -1 EEXIST (File exists)

** Affects: mylvmbackup
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1714045

Title:
  fails to copy my.cnf if it is a symlink

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