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fs: Add proper switch to create filesystem with overwrite

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https://bugzilla.redhat.com/show_bug.cgi?id=1366460

When using the --overwrite switch on a pool-build or pool-create, the
The mkfs.ext{2|3|4} commands use mke2fs which requires using the '-F' switch
in order to force overwriting the current filesystem on the whole disk.

Likewise, the mkfs.vfat command uses mkfs.fat which requires using the '-I'
switch in order to force overwriting the current filesystem on the whole disk.
This commit is contained in:
John Ferlan 2016-11-15 15:29:47 -05:00
parent 29e17f65a8
commit 135e77d32f
1 changed files with 9 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/storage/storage_backend_fs.c
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@ -712,9 +712,17 @@ virStorageBackendExecuteMKFS(const char *device,
cmd = virCommandNewArgList(MKFS, "-t", format, NULL);
/* use the force, otherwise mkfs.xfs won't overwrite existing fs */
/* use the force, otherwise mkfs.xfs won't overwrite existing fs.
* Similarly mkfs.ext2, mkfs.ext3, and mkfs.ext4 require supplying -F
* and mkfs.vfat uses -I */
if (STREQ(format, "xfs"))
virCommandAddArg(cmd, "-f");
else if (STREQ(format, "ext2") ||
STREQ(format, "ext3") ||
STREQ(format, "ext4"))
virCommandAddArg(cmd, "-F");
else if (STREQ(format, "vfat"))
virCommandAddArg(cmd, "-I");
virCommandAddArg(cmd, device);