Graham Perrin

2,865 reputation

1374

bio	website	identi.ca/grahamperrin
	location	United Kingdom
	age	48
visits	member for	1 year, 9 months
	seen	1 hour ago
stats	profile views	401

Day job: IT support to CENTRIM and Brighton Business School – four days per week at Freeman Centre on University of Sussex campus, one day at Mithras House on University of Brighton campus.

	2,865 reputation	bio	website	identi.ca/grahamperrin	visits	member for	1 year, 9 months
1374 badges		location	United Kingdom		seen	1 hour ago

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35 Questions

views newest activity votes

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kviews

How does 'stuck' (in results of 'top') relate to 'not responding' (in Activity Monitor), 'spin' or 'hang'?

aug 1 at 16:58 daviesgeek 9,798

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answer

kviews

How can ZFS be used with encryption on OS X?

osx encryption zfs

sep 20 at 19:06 Graham Perrin 2,865

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answer

831

views

Why is a command line change to ~/Library/Preferences/com.apple.LaunchServices.plist not effective immediately?

osx command-line bash launch-services uti

sep 8 at 21:51 bmike♦ 54.4k

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answers

579

views

What free or open source software can I use with Mac hardware to verify integrity of every block of a disk where Core Storage is used?

mac open-source

may 3 at 14:01 Community♦ 1

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497

views

Why might more memory be wired in safe mode than in normal mode?

osx memory safe-mode

apr 30 at 6:57 Graham Perrin 2,865

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answer

kviews

Why does the version of Java verified by Oracle differ from the version shown at the command line?

osx java plugins

feb 2 at 3:55 Graham Perrin 2,865

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answers

kviews

Is it safe to downgrade Lion from 10.7.1 to 10.7?

lion install

sep 14 at 2:44 Graham Perrin 2,865

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answers

kviews

Why might one USB port be problematic on a MacBook Pro?

macbook-pro mountain-lion usb

aug 18 at 5:33 Graham Perrin 2,865

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370

views

List the extensions installed in Safari for Mac OS X, and state whether each one is enabled

terminal safari bash safari-extensions

feb 8 '12 at 13:09 Graham Perrin 2,865

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114

views

Why is the HFS Plus attributes file unusually small, for only a while, after using Time Machine to restore a Lion system?

lion time-machine

aug 12 '11 at 9:41 Graham Perrin 2,865

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859

views

With WebDAV provided by Microsoft SharePoint, how can users of OS X minimise risks of corruption and multiuser overwrites?

osx ms-office webdav microsoft-sharepoint

may 2 at 8:01 Community♦ 1

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answer

210

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Mac virtual memory: how to make OS X create swap (page) files as freely with a normal boot as it does with a safe boot (swapfile1 etc)

osx mountain-lion virtual-memory

apr 30 at 3:49 Graham Perrin 2,865

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answer

views

How to tell which files are entirely or partly within a band of a sparse bundle disk image?

osx filesystem

apr 18 at 15:46 Joe G 11

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180

views

How to break away from LaCie Big Disk Extreme firmware, for its two disks to appear as two instead of one?

hard-drive firmware

mar 20 at 14:28 user45635 1

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answer

139

views

Why should I observe a limit of sixteen partitions per disk with OS X?

osx partition

feb 2 at 12:38 Graham Perrin 2,865

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answers

559

views

To repair permissions for Lion, is it safe to use Disk Utility in Recovery OS for Mountain Lion?

lion mountain-lion permission

dec 24 at 3:13 Graham Perrin 2,865

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answer

101

views

How to regain warnings about permanent version storage?

mountain-lion versions

nov 8 at 4:38 Graham Perrin 2,865

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answers

kviews

What actions are performed by Install OS X Mountain Lion.app that are not performed by InstallESD.dmg without the app?

mountain-lion install hacking

aug 6 at 16:56 Graham Perrin 2,865

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answers

kviews

For applications that do not store Quick Look information within the file, where does Lion (or a Server) store that information?

lion quicklook

aug 12 '11 at 7:23 Graham Perrin 2,865

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answer

846

views

For Mountain Lion, how does Apple define the Transparent App Lifecycle (TAL)?

lion osx mountain-lion

1d ago Community♦ 1

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150

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What's the meaning/use of ?mt=8 and ?mt=12 in iTunes Preview and Mac App Store Preview URLs?

mac-appstore ios-appstore

may 5 at 1:56 Filip Zrůst 26

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answers

289

views

Reasons to prefer Java 8 early access (instead of both Java 6 Update 37 and Java 7 Update 9 ) for the JRE (but not the Java applet plug-in) [closed]

osx java

apr 22 at 4:59 Andrew Lazarus 193

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answers

109

views

For bad and/or marginal blocks on hard disks, can anything be more effective than a single pass of zeros?

hard-drive disk-utility

apr 16 at 8:28 BSD Guy 31

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answer

views

What's the significance of non-checkpoint transactions in Core Storage?

osx core-storage

apr 7 at 7:48 Graham Perrin 2,865

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186

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How to remove xattr com.apple.quarantine from all .webarchive files with that extended attribute?

osx command-line

mar 30 at 16:13 Ryccardo 636

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answers

362

views

How should a user of OS X verify whether backed up data comprises everything required for lossless restoration?

osx backup restore

mar 30 at 11:02 Graham Perrin 2,865

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answers

views

Why does System Profile information appear in some but not all .panic files with Mountain Lion?

osx mountain-lion kernel-panic

mar 29 at 13:07 Graham Perrin 2,865

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answers

views

hdiutil(1) and I/O errors: how to debug with “ifd-ignore-io-errors” = 0;

osx command-line

mar 17 at 16:06 Graham Perrin 2,865

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answers

views

What's a reasonable page size for PDFs that are likely to be read on an iPad?

ipad pdf

mar 12 at 13:23 Graham Perrin 2,865

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answers

105

views

Which browsers with an integral Java runtime environment (JRE) can run that JRE on Mountain Lion?

mountain-lion java web-browser

nov 28 at 5:38 Graham Perrin 2,865