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FS#1523 - block-mount: unnecessary error log on already mounted device #7372

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openwrt-bot opened this issue Apr 28, 2018 · 1 comment
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FS#1523 - block-mount: unnecessary error log on already mounted device #7372

openwrt-bot opened this issue Apr 28, 2018 · 1 comment
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ndvour:

Environment: arm_cortex-a9_vfpv3, Linksys WRT1200AC, LEDE Reboot 17.01.4 r3560-79f57e422d

Description:
A USB flash drive has been configured with an ext4 partition to be used as external overlay, following the steps at https://openwrt.org/docs/guide-user/additional-software/extroot_configuration precisely. After the extroot switch, block tries to remount partitions that have already been mounted, generating the following errors in the logs:
Sat Apr 28 12:25:00 2018 daemon.err block: /dev/ubiblock0_0 is already mounted on /rom
Sat Apr 28 12:25:00 2018 daemon.err block: /dev/sdb1 is already mounted on /overlay
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ndvour:

This actually doesn't seem related to mounting an external overlay: the errors appear even when using the internal one (with "/dev/ubi0_1" replacing "/dev/sdb1").
Mon Apr 30 12:45:14 2018 daemon.err block: /dev/ubiblock0_0 is already mounted on /rom
Mon Apr 30 12:45:14 2018 daemon.err block: /dev/ubi0_1 is already mounted on /overlay
I understand this may not be regarded as a bug at all, everything works fine. But I'm trying to get a better understanding of my system and I think having meaningful logs is key. "False positives" are confusing and annoying: if there is indeed no error, no error should appear, maybe a warning. So I stand by my choice of reporting this.

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