[davecom]

Do these entries indicate there is something wrong with my hard disk? Or are they routine? What do they mean? Thanks.

dhcp-244-58:~ dave$ sudo grep -i 'disk[0-9]s[0-9]' /var/log/system.log

WARNING: Improper use of the sudo command could lead to data loss
or the deletion of important system files. Please double-check your
typing when using sudo. Type "man sudo" for more information.

To proceed, enter your password, or type Ctrl-C to abort.

Password:
Apr 11 15:01:02 localhost kernel[0]: BSD root: disk0s3, major 14, minor 2
Apr 11 15:01:02 localhost diskarbitrationd[38]: disk0s3 hfs 55E109B8-9BD8-3321-87A2-60B8C544B7EC HD /
Apr 12 21:31:03 localhost kernel[0]: BSD root: disk0s3, major 14, minor 2
Apr 12 21:31:04 localhost diskarbitrationd[38]: disk0s3 hfs 55E109B8-9BD8-3321-87A2-60B8C544B7EC HD /
Apr 17 11:57:52 localhost kernel[0]: BSD root: disk0s3, major 14, minor 2
Apr 17 11:57:53 localhost diskarbitrationd[38]: disk0s3 hfs 55E109B8-9BD8-3321-87A2-60B8C544B7EC HD /
Apr 18 22:25:08 localhost kernel[0]: BSD root: disk0s3, major 14, minor 2
Apr 18 22:25:09 localhost diskarbitrationd[38]: disk0s3 hfs 55E109B8-9BD8-3321-87A2-60B8C544B7EC HD /
Apr 29 01:28:17 localhost kernel[0]: BSD root: disk0s3, major 14, minor 2
Apr 29 01:28:18 localhost diskarbitrationd[38]: disk0s3 hfs 55E109B8-9BD8-3321-87A2-60B8C544B7EC HD /
Apr 29 14:33:58 localhost kernel[0]: BSD root: disk0s3, major 14, minor 2
Apr 29 14:33:59 localhost diskarbitrationd[38]: disk0s3 hfs 55E109B8-9BD8-3321-87A2-60B8C544B7EC HD /
Apr 29 14:34:51 localhost kernel[0]: BSD root: disk0s3, major 14, minor 2
Apr 29 14:34:52 localhost diskarbitrationd[38]: disk0s3 hfs 55E109B8-9BD8-3321-87A2-60B8C544B7EC HD /
Apr 29 14:39:23 localhost kernel[0]: BSD root: disk0s3, major 14, minor 2
Apr 29 14:39:24 localhost diskarbitrationd[38]: disk0s3 hfs 55E109B8-9BD8-3321-87A2-60B8C544B7EC HD /
Apr 29 14:46:20 localhost kernel[0]: BSD root: disk0s3, major 14, minor 2
Apr 29 14:46:21 localhost diskarbitrationd[38]: disk0s3 hfs 55E109B8-9BD8-3321-87A2-60B8C544B7EC HD /

[Art Vandelay]

Are those times you rebooted? If yes, those are normal entries for when your boot volume is mounted while booting.

[besson3c]

can you perhaps provide some text before these entires (e.g. grep -B 5) so that we have a little context here?