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kvm tools: Improve "kvm setup" info and error messages

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This patch improves the output of 'kvm setup' as follows:

  [penberg@tux kvm]$ ./kvm setup

  kvm setup creates a new rootfs under /home/penberg//.kvm-tools/.
  This can be used later by the '-d' parameter of 'kvm run'.

   usage: kvm setup [name]

  [penberg@tux kvm]$ ./kvm setup test-box
  A new rootfs 'test-box' has been created in '/home/penberg//.kvm-tools/test-box'.

  You can now start it by running the following command:

    kvm run -d test-box

  [penberg@tux kvm]$ ./kvm setup test-box
  Unable to create rootfs in /home/penberg//.kvm-tools/test-box: File exists

Acked-by: Cyrill Gorcunov <gorcunov@gmail.com>
Acked-by: Sasha Levin <levinsasha928@gmail.com>
Cc: Asias He <asias.hejun@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
This commit is contained in:
Pekka Enberg
2011-10-25 14:59:55 +03:00
committed by Will Deacon
parent dd188f9f6b
commit f9ea40eaee
1 changed files with 9 additions and 6 deletions
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builtin-setup.c
+9 -6
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@@ -46,8 +46,9 @@ static void parse_setup_options(int argc, const char **argv)
void kvm_setup_help(void)
{
printf("\nkvm setup creates a new rootfs and stores it under ~/.kvm-tools/ .\n"
"This can be used later by the '-d' parameter of 'kvm run'.\n");
printf("\nkvm setup creates a new rootfs under %s.\n"
"This can be used later by the '-d' parameter of 'kvm run'.\n",
kvm__get_dir());
usage_with_options(setup_usage, setup_options);
}
@@ -215,11 +216,13 @@ int kvm_cmd_setup(int argc, const char **argv, const char *prefix)
r = do_setup(instance_name);
if (r == 0)
pr_info("Your new rootfs named %s has been created.\n"
"You can now start it by running 'kvm run -d %s'\n",
instance_name, instance_name);
printf("A new rootfs '%s' has been created in '%s%s'.\n\n"
"You can now start it by running the following command:\n\n"
" kvm run -d %s\n",
instance_name, kvm__get_dir(), instance_name, instance_name);
else
perror("Error creating rootfs");
printf("Unable to create rootfs in %s%s: %s\n",
kvm__get_dir(), instance_name, strerror(errno));
return r;
}