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JimPorterPhoto
JimPorterPhoto
Participant
November 4, 2021
Answered

Error in Lightroom 10 previews preventing backup with Bvckup 2 Pro

  • November 4, 2021
  • 2 replies
  • 472 views

I'm testing Bvckup Pro 2 (BP2) to automate backups from my working drive (2TB internal HDD) to a secondary SSD (Sandisk Extreme 2TB).  BP2 threw an error on the source scan, flagging Lightroom Catalog-v10 Previews.lrdata\E\E29A and \2\27DC.  Support from BP2 thinks these are corrupted files. Can I delete them?  If I don't, might they cause a problem when I update to v11 (which I'm anxious to do but waiting for the bugs to settle).  As this appears to be previews, I'm thinking it might be ok to delete them but I don't understand the nitty-gritty of LRC file dynamics.  Thanks.

This topic has been closed for replies.
Correct answer KR Seals

.You can probably skip the previews altogether. If you were to loose the previews folder, LrC will just recreate them. The most critical thing is to back up your catalog(s) and image files. 

2 replies

Ian Lyons
Community Expert
Ian LyonsCommunity Expert
Community Expert
November 4, 2021

The two files you need to backup are 'lrcat' and 'lrcat-data'. Lose or mess up either of these and you're going to be very unhappy. The rest can be rebuilt fairly easily.

    JimPorterPhoto
    JimPorterPhotoAuthor
    Participant
    November 4, 2021

    Thank you, Ian.  Duly noted!

    Jim

    KR Seals
    Community Expert
    KR SealsCommunity ExpertCorrect answer
    Community Expert
    November 4, 2021

    .You can probably skip the previews altogether. If you were to loose the previews folder, LrC will just recreate them. The most critical thing is to back up your catalog(s) and image files. 

    Ken Seals - Nikon Z 9, Z 8, 14mm-800mm. Computer Win 11 Pro, I7-14700K, 64GB, RTX3070TI. Travel machine: 2021 MacBook Pro M1 MAX 64GB. All Adobe apps.
      JimPorterPhoto
      JimPorterPhotoAuthor
      Participant
      November 4, 2021

      Kenneth, thank you, that makes sense and I should have figured it out on my own!  I'm just a little (ok, a lot) nervous about messing with LR files as I don't understand them well--time to learn some more.  I can exclude them when I specify the backup job parameters in BP2.  Thanks again.

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