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@hans Hello,
My iMac died z´the next day, so maybe this was the reason. I made an image copy on my Windows PC and the SD worked. I will try again with APB when I perform my next backup-
Btw. Is there a way to "shrink" the size of the SD Image? As far as I see, the Raspberry Partition is about 14 GB, can I bring this to a 32 GB Süß This will shorten the backup process.
Thanx
AjA
Hi,
sorry, I have answered to an old entry. My Mac died ... Yes I am using the internal AND an external reader, both!
Is there a way to "shrink" the size of the SD Image? As far as I see, the Raspberry Partition is about 14 GB, can I bring this to a 32 GB Süß This will shorten the backup process.
Backup: Shrink makes as small as possible.
The shrink function will make the IMG as small as possible - it actually copies the filesystem and the resizes the filesystem copy to it's smallest possible size.
Restore: Expand to max size of the SD card.
The shrink function will determine the amount of available space on the target disk/SD, and if it first, will maximize the use of that disk by resizing the copied filesystem to as large as the target device can hold.
So to see if 14Gb fits, first make a backup with "shrink" enabled. Save it as an uncompressed IMG file. The file size will tell you the minimum required space to restore this image.
Now to answer you question; can you make the partition smaller (32Gb -> 14Gb) to safe on backup time?
We, you can make the partition small I assume, but this will not make the backup time any faster.
To speed up backup times:
- do not compress the backup. Use the regular IMG format, and do not use ZIP, TGZ, GZIP, etc.
- backup to an SSD, especially when using the shrink function (quite a bit of disk activity when resizing).
- backup to an internal drive, USB drives or network shares are in general a lot slower.
- make a backup of your work files / data only (which is not what ApplePi-Baker is make for of course).
A backup of the entire disk (OS, data, etc) just takes more time.
Downside is that you do need to know what you need to backup and you do need to know how to restore.
