Google tells me it should be ok to backup ext4 “/” or subdirs to a FAT32 partition. Its not for me but i would like to tell a friend of mine ( not computer interested but using Mint ) how to backup to new external disk, thats probably FAT32 formatted.
My BackIntIme backups are on ext4 partition and i see a file there called “fileinfo” that seems to have all the file attributes saved.
Example line in file fileinfo:
32813 root root /var/lib/NetworkManager/secret_key
FAT32 has no file permissions like ext4.
backintime should not be used for storing backups on a FAT, FAT-derivative or NTFS filesystem, because it uses
rsync in the background, which needs to be able to create hard-links for files that haven’t changed since the last backup, and those filesystems do not support that.
In addition to that, as @Keruskerfuerst said, those filesystems do not support POSIX permissions and file ownership.
Ok, then i have to tell my friend how to format his external drive.
That’s no fun, because he thinks its allways the computer causing troubles
He should better use an Apple PC, but thats too expensive for him!
You can use the partition manager of the GUI or fdisk with mk.ext4.
fat32 has a limitation size ( file no more than 4go ) and limitation in name directory size ,
for exchange see exfat
for backup use initial fs format
I have an external USB disc formatted with ext4.
Rsync from internal disc to external disc works well.
If I use rsync to transfer data form internal SSD to USB stick (with FAT32 filesystem), then rsync doesn´t work well.
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