NOTE: You will want to consider the connection type/device depending on the Macs supported: This is to allow for additional software to be installed and to be able to install macOS / OS X / Mac OS X "Combo" System Updates (see below). NOTE: It is best that the volume/partition you are going to use must be at least 20GB in size. NOTE: This process can be used for multiple types of storage hardware including hard disks, Sold State Drives (SSDs), SD cards or USB sticks/flash drives. NOTE: Make sure you have your original macOS / OS X / Mac OS X installation application or DVD disc(s) to hand or you have obtained the macOS / OS X / Mac OS X disc image. Has various software utilities on it that you might need in an emergency.has a slim but most up-to-date version of macOS / OS X / Mac OS X you need (so it can boot all supported Macs).Instructions for creating an emergency macOS boot disk Creating An Emergency Boot Drive For macOS / OS X / Mac OS XĪn Emergency Boot Drive is useful if you maintain multiple Macintosh computers or just want something that can boot your Mac in an emergency. It's great for that use.Ĭloning as a part of a backup routine? Never ever ever ever ever.Creating An Emergency Boot Drive For macOS Article ID = 39Īrticle Title = Creating An Emergency Boot Drive For macOSĪrticle Last Updated = 8th September 2017 I set up a master workstation and clone it to all the others in the classroom at the beginning of every year. Super Duper! and CCC have no problem writing to problem drives. The screen prints from TTP end any argument before they begin. I've only had one WD drive fail in the last 5 years but I've stopped counting the Seagate drives that failed including OE drives in Time Capsules. It's easy to pop out the drives in Time Capsules to examine them. Because you can't access SMART data over Ethernet, USB or FireWire, you need to examine the drive via SATA to take a look. Problem drives will often pass SMART status and only TTP will access the parameters so you can see the problem. It's like a canary in the coal mine.ĭiagnosing them is difficult unless you have TechTool Pro. Every time I have run into the issues you describe, I have found a bad drive. My oldest TM backup is from October 2013.Īt this point, I'm wondering, if I have SD with scheduled cumulative backups, why am I using Time Machine?īecause, when TM is telling you that there are problems, it is right and you should be paying attention. I have accessible cumulative SD backups for each of 4 active Macs going back to the day I set them up. And SD, unlike TM doesn't stop me from getting at backups it has already done. SD might fail, now and then, to complete a scheduled backup for various reasons, but I can tell it to just try it again, and that has always worked. And my SD backups are on the same drives and networks as the TM backups, and SD doesn't do this. I know you will tell me this is a problem with my backup drive or network, and that may be, but it doesn't matter what the reason is, I lose the TM backup. At that point it makes all my TM backups unusable, so I can't get to old versions of files, or to files no longer on my active system. Time Machine has a nasty habit of telling me now and then it has done a check on my backup and decided I have to start a new one. I have never understood using it over Time Machine. Paid version will be much faster for updating backups, though.
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