Questions tagged [fsck-hfs]

HFS(plus) file system consistency check and repair.

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Apple fsck.hfs borks on corrupted journal

Got message, "Unrecognized disk" and a choice of eject, initialize, or ignore I chose ignore, then used "repair disk" Made no difference. Can this be fixed without reinitializing?
Sherwood Botsford's user avatar
4 votes
1 answer
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Any way to configure fsck_hfs to use more memory to speed up verification of Time Capsule images?

Periodically Time Machine verifies sparsebundle backups with fsck_hfs. When the sparsebundle is on a Time Capsule (TC) it does this by creating a partial and much smaller representation of the ...
timjph's user avatar
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Repair options of a (really) Broken HFS+ "Invalid extent entry" volume?

I have an un-mountable external 2TB harddisk, formattet HFS+, one "usable" partition, containing a set of my backups. It won't show in Finder, it won't repair in disk utility, it won't ...
Christian's user avatar
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Restore a partition on an external drive after enclosure failure

I had a very freak electrical accident with my iMac 5K a few weeks ago. One of my external drives (my backup drive) shorted out and would no longer mount. I decided to buy an 3.5" enclosure as I ...
Tomasch's user avatar
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Seemingly unprovoked software corruption on external drive. Can I salvage?

I have an external disk on my Mojave system that seemingly had the volume name overwritten with another volume's name and now it won't mount and Disk Utility firstaid won't help. I have an external ...
BSartist's user avatar
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How do I rebuild the catalog on time machine backup hard drive?

My Time machine backup drive has started giving me these errors on doing a fsck. How can I rebuild the indexes on this drive? I just upgraded to Mac OS Mojave 10.14.6. The drive has 2 partitioned as: ...
user674669's user avatar
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fsck_hfs invalid key length

The HDD is a brand new MyPassport WD 4Tb. I recently used it as my main backup and before I had the time to reformat another drive for a second backup (which means that some data on that drive are ...
Paul Godard's user avatar
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Time Machine Sparse Bundle failed to verify after catalog rebuild

After reading about the fsck_hfs man page, I feel like the need to rebuild catalogs. However, when I do a repair before the rebuild, it succeeded, but then printed a lot of errors during the build, ...
Joy Jin's user avatar
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1 vote
1 answer
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Can I speed up Disk Utility First Aid by running “fsck_hfs” with the “-c” option?

I ran Disk Utility’s First Aid on a portable hard disk I use for Time Machine, which took around 13 hours (with no repairs being needed). I was wondering whether there’s a way to speed that up. Disk ...
Rinzwind's user avatar
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Why is fsck_hfs slow on *journaled* HFS+

Sometimes my external drives get uncleanly detached, and at the next connection a disk check is necessary. What surprises me now is to see a slow disk check process on a journaled filesystem. ...
Blaisorblade's user avatar
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"No space left on device" despite 70GB free; can't create any files larger than 8.0MiB on iPad

iPad Pro 9.7" (1st gen) 256GB, iOS 10.2.1. Problem #1: I can't create files larger than 2-8MB (it varies upon reboot). This renders the iPad virtually unusuable. Many apps won't launch, apps won't ...
Syclone0044's user avatar
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Interpreting fsck_hfs result

While trying to understand why my Mac stopped performing so well on Spotlight.. I tried a suggestion that had me check my HD's status on Disk Utility. I can't press the Unmount button even after using ...
dia's user avatar
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2 votes
0 answers
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Is there a way to figure out which file is stored at a particular block?

I've just checked my SSD with sudo fsck_hfs -fy -S /dev/disk2s2 and it threw some errors, for example: block 2760096: *** NO MATCH *** What I would like to know which file is located at offset ...
Lenar Hoyt's user avatar
2 votes
1 answer
2k views

MacBook Pro (Late2011) fails to boot and repair HDD volume:

I have a MacBookPro ("late 2011"/ MD313LL/A) (i5, 4GB, 500 GB Toshiba HDD) with MacOSX 10.9.x on it. The MacBook won't boot. In verbose mode I see the following information: During boot, after ...
Matt's user avatar
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1 vote
1 answer
650 views

Strange messages from fsck_hfs

I am trying to check an entire USB external disk that is not erased. For that reason I have typed fsck_hfs -fy -l -S -d /dev/disk1s2 This the result Several messages I found strange here NO WRITE -...
Duck's user avatar
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