Installed this cool backup tool on a Dreamhost site as I love using this to backup. Could not open .gz anymore. Got this error: "not in gzip format" under Linux and under Mac is was just copied to the same file with extension .cpgz. Very odd!!. Had to use PMA to get a backup which did open without any issues..
WP-DB-Backup
[resolved] Backup .gz cannot be opened (6 posts)
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When you used phpMyAdmin did you tell it to 'gzip' the file?
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Yes. Downloaded as a .gz from PMA as well. It "unzipped just fine. Tried the plugin WP-DB-Backup again, but still got a .cpgz instead of the .sql when I tried to unzip.
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Tried downoading backup created by plugin using Safari instead of Firefox this time. Safari tried to unzip it and failed with error:
10/31/10 10:42:06 PM [0x0-0x190190].com.apple.Safari[6792] Sun Oct 31 22:42:06 mysmbp Safari[6792] <Error>: CGImageSourceCreateWithURL: CFURLCreateDataAndPropertiesFromResource failed with error code -14.
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Somehow files were corrupted before they got to my box. This goes for dumping using PMA as well as the WP-DB-Backup plugin.
Tested dumps made them with hexdump on got:
mymbp:Backup me$ hexdump -C file.sql.gz | head hexdump: file.sql.gz: No such file or directory hexdump: file.sql.gz: Bad file descriptorTried gunzipping .gz files in terminal and got.
gzip: /Users/me/Webdesign/folder/backup/file.sql.gz: not in gzip format. This happens often when making a dump on a server that is located several 1000 miles away. They were corrupted during transfer. When I use WP-DB_Backup and e-mail the SQL dump all is well and the files can be gunzipped or unzipped without any issues.
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JacobFennell
Posted 1 year ago #You may try removing the .gz filename extension. I've seen .sql.gz files that are actually just .sql files.
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